./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1380328698 <...> Warning: Permanently added '10.128.10.2' (ED25519) to the list of known hosts. execve("./syz-executor1380328698", ["./syz-executor1380328698"], 0x7ffcedfe4060 /* 10 vars */) = 0 brk(NULL) = 0x55555fa3c000 brk(0x55555fa3cd40) = 0x55555fa3cd40 arch_prctl(ARCH_SET_FS, 0x55555fa3c3c0) = 0 set_tid_address(0x55555fa3c690) = 5826 set_robust_list(0x55555fa3c6a0, 24) = 0 rseq(0x55555fa3cce0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1380328698", 4096) = 28 getrandom("\x3f\x7d\x42\x10\x70\x05\xcc\xf1", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55555fa3cd40 brk(0x55555fa5dd40) = 0x55555fa5dd40 brk(0x55555fa5e000) = 0x55555fa5e000 mprotect(0x7f0d6aeee000, 16384, PROT_READ) = 0 mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000 mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000 mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000 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 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) [ 79.112507][ T5826] cgroup: Unknown subsys name 'net' 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 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) [ 79.228637][ T5826] cgroup: Unknown subsys name 'cpuset' [ 79.262012][ T5826] 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) clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5828 attached , child_tidptr=0x55555fa3c690) = 5828 [pid 5828] set_robust_list(0x55555fa3c6a0, 24) = 0 [pid 5826] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5828] mkdir("./syzkaller.ZQnuWy", 0700./strace-static-x86_64: Process 5829 attached [pid 5826] <... clone resumed>, child_tidptr=0x55555fa3c690) = 5829 [pid 5829] set_robust_list(0x55555fa3c6a0, 24 [pid 5826] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5829] <... set_robust_list resumed>) = 0 [pid 5828] <... mkdir resumed>) = 0 [pid 5829] mkdir("./syzkaller.rfbqnX", 0700 [pid 5828] chmod("./syzkaller.ZQnuWy", 0777./strace-static-x86_64: Process 5830 attached ) = 0 [pid 5830] set_robust_list(0x55555fa3c6a0, 24) = 0 [pid 5826] <... clone resumed>, child_tidptr=0x55555fa3c690) = 5830 [pid 5829] <... mkdir resumed>) = 0 [pid 5828] chdir("./syzkaller.ZQnuWy" [pid 5826] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5828] <... chdir resumed>) = 0 ./strace-static-x86_64: Process 5831 attached [pid 5830] mkdir("./syzkaller.5bFCj7", 0700 [pid 5829] chmod("./syzkaller.rfbqnX", 0777 [pid 5828] unshare(CLONE_NEWPID [pid 5826] <... clone resumed>, child_tidptr=0x55555fa3c690) = 5831 [pid 5831] set_robust_list(0x55555fa3c6a0, 24 [pid 5829] <... chmod resumed>) = 0 [pid 5828] <... unshare resumed>) = 0 [pid 5826] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5831] <... set_robust_list resumed>) = 0 [pid 5828] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5832 attached [pid 5831] mkdir("./syzkaller.KKQVjh", 0700 [pid 5830] <... mkdir resumed>) = 0 [pid 5829] chdir("./syzkaller.rfbqnX"./strace-static-x86_64: Process 5833 attached [pid 5826] <... clone resumed>, child_tidptr=0x55555fa3c690) = 5832 [pid 5832] set_robust_list(0x55555fa3c6a0, 24 [pid 5830] chmod("./syzkaller.5bFCj7", 0777 [pid 5829] <... chdir resumed>) = 0 [pid 5833] set_robust_list(0x55555fa3c6a0, 24 [pid 5832] <... set_robust_list resumed>) = 0 [pid 5831] <... mkdir resumed>) = 0 [pid 5830] <... chmod resumed>) = 0 [pid 5829] unshare(CLONE_NEWPID [pid 5833] <... set_robust_list resumed>) = 0 [pid 5832] mkdir("./syzkaller.HS8tke", 0700 [pid 5831] chmod("./syzkaller.KKQVjh", 0777 [pid 5828] <... clone resumed>, child_tidptr=0x55555fa3c690) = 5833 [pid 5830] chdir("./syzkaller.5bFCj7" [pid 5829] <... unshare resumed>) = 0 [pid 5833] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5830] <... chdir resumed>) = 0 [pid 5829] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5833] <... prctl resumed>) = 0 [pid 5832] <... mkdir resumed>) = 0 [pid 5831] <... chmod resumed>) = 0 [pid 5831] chdir("./syzkaller.KKQVjh") = 0 [pid 5831] unshare(CLONE_NEWPID) = 0 [pid 5833] getppid( [pid 5832] chmod("./syzkaller.HS8tke", 0777 [pid 5831] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5830] unshare(CLONE_NEWPID./strace-static-x86_64: Process 5834 attached [pid 5834] set_robust_list(0x55555fa3c6a0, 24 [pid 5833] <... getppid resumed>) = 0 [pid 5832] <... chmod resumed>) = 0 [pid 5830] <... unshare resumed>) = 0 [pid 5830] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5835 attached ./strace-static-x86_64: Process 5836 attached [pid 5834] <... set_robust_list resumed>) = 0 [pid 5833] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, [pid 5832] chdir("./syzkaller.HS8tke" [pid 5829] <... clone resumed>, child_tidptr=0x55555fa3c690) = 5834 [pid 5836] set_robust_list(0x55555fa3c6a0, 24 [pid 5835] set_robust_list(0x55555fa3c6a0, 24 [pid 5834] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5835] <... set_robust_list resumed>) = 0 [pid 5834] <... prctl resumed>) = 0 [pid 5833] <... prlimit64 resumed>NULL) = 0 [pid 5832] <... chdir resumed>) = 0 [pid 5831] <... clone resumed>, child_tidptr=0x55555fa3c690) = 5835 [pid 5836] <... set_robust_list resumed>) = 0 [pid 5835] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5834] getppid( [pid 5833] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, [pid 5832] unshare(CLONE_NEWPID [pid 5830] <... clone resumed>, child_tidptr=0x55555fa3c690) = 5836 [pid 5836] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5835] <... prctl resumed>) = 0 [pid 5834] <... getppid resumed>) = 0 [pid 5833] <... prlimit64 resumed>NULL) = 0 [pid 5832] <... unshare resumed>) = 0 [pid 5836] <... prctl resumed>) = 0 [pid 5835] getppid( [pid 5834] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, [pid 5833] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, [pid 5832] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5836] getppid( [pid 5835] <... getppid resumed>) = 0 [pid 5834] <... prlimit64 resumed>NULL) = 0 [pid 5833] <... prlimit64 resumed>NULL) = 0 ./strace-static-x86_64: Process 5837 attached [pid 5836] <... getppid resumed>) = 0 [pid 5835] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, [pid 5834] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, [pid 5833] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, [pid 5837] set_robust_list(0x55555fa3c6a0, 24 [pid 5836] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, [pid 5835] <... prlimit64 resumed>NULL) = 0 [pid 5834] <... prlimit64 resumed>NULL) = 0 [pid 5833] <... prlimit64 resumed>NULL) = 0 [pid 5835] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, [pid 5834] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, [pid 5833] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, [pid 5832] <... clone resumed>, child_tidptr=0x55555fa3c690) = 5837 [pid 5835] <... prlimit64 resumed>NULL) = 0 [pid 5834] <... prlimit64 resumed>NULL) = 0 [pid 5833] <... prlimit64 resumed>NULL) = 0 [pid 5835] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, [pid 5834] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, [pid 5833] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, [pid 5837] <... set_robust_list resumed>) = 0 [pid 5836] <... prlimit64 resumed>NULL) = 0 [pid 5835] <... prlimit64 resumed>NULL) = 0 [pid 5834] <... prlimit64 resumed>NULL) = 0 [pid 5833] <... prlimit64 resumed>NULL) = 0 [pid 5836] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, [pid 5835] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, [pid 5834] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, [pid 5833] unshare(CLONE_NEWNS [pid 5837] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5836] <... prlimit64 resumed>NULL) = 0 [pid 5835] <... prlimit64 resumed>NULL) = 0 [pid 5834] <... prlimit64 resumed>NULL) = 0 [pid 5837] <... prctl resumed>) = 0 [pid 5836] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, [pid 5835] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, [pid 5834] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, [pid 5833] <... unshare resumed>) = 0 [pid 5837] getppid( [pid 5836] <... prlimit64 resumed>NULL) = 0 [pid 5835] <... prlimit64 resumed>NULL) = 0 [pid 5834] <... prlimit64 resumed>NULL) = 0 [pid 5837] <... getppid resumed>) = 0 [pid 5836] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5835] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, [pid 5834] unshare(CLONE_NEWNS [pid 5833] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL [pid 5837] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, [pid 5836] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, [pid 5835] <... prlimit64 resumed>NULL) = 0 [pid 5837] <... prlimit64 resumed>NULL) = 0 [pid 5836] <... prlimit64 resumed>NULL) = 0 [pid 5835] unshare(CLONE_NEWNS [pid 5834] <... unshare resumed>) = 0 [pid 5833] <... mount resumed>) = 0 [pid 5837] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, [pid 5836] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, [pid 5833] unshare(CLONE_NEWIPC [pid 5837] <... prlimit64 resumed>NULL) = 0 [pid 5836] <... prlimit64 resumed>NULL) = 0 [pid 5835] <... unshare resumed>) = 0 [pid 5834] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL [pid 5837] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, [pid 5836] unshare(CLONE_NEWNS [pid 5833] <... unshare resumed>) = 0 [pid 5837] <... prlimit64 resumed>NULL) = 0 [pid 5836] <... unshare resumed>) = 0 [pid 5835] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL [pid 5834] <... mount resumed>) = 0 [pid 5837] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, [pid 5835] <... mount resumed>) = 0 [pid 5837] <... prlimit64 resumed>NULL) = 0 [pid 5836] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL [pid 5835] unshare(CLONE_NEWIPC [pid 5834] unshare(CLONE_NEWIPC [pid 5833] unshare(CLONE_NEWCGROUP [pid 5837] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, [pid 5836] <... mount resumed>) = 0 [pid 5837] <... prlimit64 resumed>NULL) = 0 [pid 5837] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, [pid 5836] unshare(CLONE_NEWIPC [pid 5834] <... unshare resumed>) = 0 [pid 5837] <... prlimit64 resumed>NULL) = 0 [pid 5835] <... unshare resumed>) = 0 [pid 5834] unshare(CLONE_NEWCGROUP [pid 5833] <... unshare resumed>) = 0 [pid 5837] unshare(CLONE_NEWNS [pid 5836] <... unshare resumed>) = 0 [pid 5833] unshare(CLONE_NEWUTS [pid 5835] unshare(CLONE_NEWCGROUP [pid 5834] <... unshare resumed>) = 0 [pid 5837] <... unshare resumed>) = 0 [pid 5836] unshare(CLONE_NEWCGROUP [pid 5835] <... unshare resumed>) = 0 [pid 5834] unshare(CLONE_NEWUTS [pid 5833] <... unshare resumed>) = 0 [pid 5835] unshare(CLONE_NEWUTS [pid 5834] <... unshare resumed>) = 0 [pid 5833] unshare(CLONE_SYSVSEM [pid 5835] <... unshare resumed>) = 0 [pid 5834] unshare(CLONE_SYSVSEM [pid 5833] <... unshare resumed>) = 0 [pid 5837] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL [pid 5836] <... unshare resumed>) = 0 [pid 5835] unshare(CLONE_SYSVSEM [pid 5834] <... unshare resumed>) = 0 [pid 5833] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC [pid 5837] <... mount resumed>) = 0 [pid 5836] unshare(CLONE_NEWUTS [pid 5835] <... unshare resumed>) = 0 [pid 5834] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC [pid 5837] unshare(CLONE_NEWIPC [pid 5836] <... unshare resumed>) = 0 [pid 5835] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC [pid 5837] <... unshare resumed>) = 0 [pid 5836] unshare(CLONE_SYSVSEM [pid 5834] <... openat resumed>) = 3 [pid 5833] <... openat resumed>) = 3 [pid 5836] <... unshare resumed>) = 0 [pid 5836] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC [pid 5835] <... openat resumed>) = 3 [pid 5834] write(3, "16777216", 8 [pid 5833] write(3, "16777216", 8 [pid 5837] unshare(CLONE_NEWCGROUP [pid 5835] write(3, "16777216", 8 [pid 5834] <... write resumed>) = 8 [pid 5837] <... unshare resumed>) = 0 [pid 5835] <... write resumed>) = 8 [pid 5834] close(3 [pid 5833] <... write resumed>) = 8 [pid 5837] unshare(CLONE_NEWUTS [pid 5835] close(3 [pid 5834] <... close resumed>) = 0 [pid 5833] close(3 [pid 5837] <... unshare resumed>) = 0 [pid 5835] <... close resumed>) = 0 [pid 5834] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC [pid 5833] <... close resumed>) = 0 [pid 5837] unshare(CLONE_SYSVSEM [pid 5835] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC [pid 5834] <... openat resumed>) = 3 [pid 5833] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC [pid 5837] <... unshare resumed>) = 0 [pid 5835] <... openat resumed>) = 3 [pid 5834] write(3, "536870912", 9 [pid 5833] <... openat resumed>) = 3 [pid 5837] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC [pid 5836] <... openat resumed>) = 3 [pid 5836] write(3, "16777216", 8) = 8 [pid 5836] close(3 [pid 5835] write(3, "536870912", 9 [pid 5834] <... write resumed>) = 9 [pid 5837] <... openat resumed>) = 3 [pid 5836] <... close resumed>) = 0 [pid 5835] <... write resumed>) = 9 [pid 5833] write(3, "536870912", 9 [pid 5834] close(3 [pid 5837] write(3, "16777216", 8 [pid 5836] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC [pid 5835] close(3 [pid 5834] <... close resumed>) = 0 [pid 5833] <... write resumed>) = 9 [pid 5837] <... write resumed>) = 8 [pid 5836] <... openat resumed>) = 3 [pid 5835] <... close resumed>) = 0 [pid 5834] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC [pid 5833] close(3 [pid 5837] close(3 [pid 5836] write(3, "536870912", 9 [pid 5835] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC [pid 5834] <... openat resumed>) = 3 [pid 5833] <... close resumed>) = 0 [pid 5836] <... write resumed>) = 9 [pid 5837] <... close resumed>) = 0 [pid 5836] close(3 [pid 5835] <... openat resumed>) = 3 [pid 5833] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC [pid 5837] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC [pid 5836] <... close resumed>) = 0 [pid 5835] write(3, "1024", 4 [pid 5834] write(3, "1024", 4 [pid 5833] <... openat resumed>) = 3 [pid 5837] <... openat resumed>) = 3 [pid 5836] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC [pid 5835] <... write resumed>) = 4 [pid 5834] <... write resumed>) = 4 [pid 5833] write(3, "1024", 4 [pid 5837] write(3, "536870912", 9 [pid 5835] close(3 [pid 5837] <... write resumed>) = 9 [pid 5835] <... close resumed>) = 0 [pid 5834] close(3 [pid 5833] <... write resumed>) = 4 [pid 5837] close(3 [pid 5835] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC [pid 5834] <... close resumed>) = 0 [pid 5833] close(3 [pid 5837] <... close resumed>) = 0 [pid 5835] <... openat resumed>) = 3 [pid 5834] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC [pid 5833] <... close resumed>) = 0 [pid 5837] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5835] write(3, "8192", 4 [pid 5834] <... openat resumed>) = 3 [pid 5833] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC [pid 5836] <... openat resumed>) = 3 [pid 5835] <... write resumed>) = 4 [pid 5833] <... openat resumed>) = 3 [pid 5836] write(3, "1024", 4 [pid 5837] write(3, "1024", 4 [pid 5835] close(3 [pid 5836] <... write resumed>) = 4 [pid 5834] write(3, "8192", 4 [pid 5833] write(3, "8192", 4 [pid 5837] <... write resumed>) = 4 [pid 5836] close(3 [pid 5835] <... close resumed>) = 0 [pid 5834] <... write resumed>) = 4 [pid 5833] <... write resumed>) = 4 [pid 5837] close(3 [pid 5836] <... close resumed>) = 0 [pid 5835] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC [pid 5834] close(3 [pid 5833] close(3 [pid 5837] <... close resumed>) = 0 [pid 5836] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC [pid 5835] <... openat resumed>) = 3 [pid 5834] <... close resumed>) = 0 [pid 5837] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC [pid 5836] <... openat resumed>) = 3 [pid 5834] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC [pid 5833] <... close resumed>) = 0 [pid 5837] <... openat resumed>) = 3 [pid 5836] write(3, "8192", 4 [pid 5835] write(3, "1024", 4 [pid 5834] <... openat resumed>) = 3 [pid 5833] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC [pid 5837] write(3, "8192", 4 [pid 5836] <... write resumed>) = 4 [pid 5835] <... write resumed>) = 4 [pid 5834] write(3, "1024", 4 [pid 5833] <... openat resumed>) = 3 [pid 5837] <... write resumed>) = 4 [pid 5836] close(3 [pid 5835] close(3 [pid 5834] <... write resumed>) = 4 [pid 5837] close(3 [pid 5836] <... close resumed>) = 0 [pid 5835] <... close resumed>) = 0 [pid 5837] <... close resumed>) = 0 [pid 5836] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC [pid 5835] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC [pid 5834] close(3 [pid 5833] write(3, "1024", 4 [pid 5837] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC [pid 5836] <... openat resumed>) = 3 [pid 5835] <... openat resumed>) = 3 [pid 5834] <... close resumed>) = 0 [pid 5833] <... write resumed>) = 4 [pid 5837] <... openat resumed>) = 3 [pid 5836] write(3, "1024", 4 [pid 5834] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC [pid 5833] close(3 [pid 5837] write(3, "1024", 4 [pid 5836] <... write resumed>) = 4 [pid 5835] write(3, "1024", 4 [pid 5834] <... openat resumed>) = 3 [pid 5833] <... close resumed>) = 0 [pid 5836] close(3 [pid 5837] <... write resumed>) = 4 [pid 5835] <... write resumed>) = 4 [pid 5834] write(3, "1024", 4 [pid 5833] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC [pid 5837] close(3 [pid 5836] <... close resumed>) = 0 [pid 5835] close(3 [pid 5834] <... write resumed>) = 4 [pid 5833] <... openat resumed>) = 3 [pid 5837] <... close resumed>) = 0 [pid 5836] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC [pid 5835] <... close resumed>) = 0 [pid 5837] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC [pid 5834] close(3 [pid 5833] write(3, "1024", 4 [pid 5836] <... openat resumed>) = 3 [pid 5836] write(3, "1024", 4 [pid 5835] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC [pid 5836] <... write resumed>) = 4 [pid 5837] <... openat resumed>) = 3 [pid 5836] close(3 [pid 5835] <... openat resumed>) = 3 [pid 5834] <... close resumed>) = 0 [pid 5833] <... write resumed>) = 4 [pid 5836] <... close resumed>) = 0 [pid 5834] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC [pid 5837] write(3, "1024", 4 [pid 5836] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC [pid 5835] write(3, "1024 1048576 500 1024", 21 [pid 5834] <... openat resumed>) = 3 [pid 5837] <... write resumed>) = 4 [pid 5836] <... openat resumed>) = 3 [pid 5835] <... write resumed>) = 21 [pid 5837] close(3 [pid 5835] close(3 [pid 5834] write(3, "1024 1048576 500 1024", 21 [pid 5836] write(3, "1024 1048576 500 1024", 21 [pid 5833] close(3 [pid 5837] <... close resumed>) = 0 [pid 5835] <... close resumed>) = 0 [pid 5834] <... write resumed>) = 21 [pid 5837] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC [pid 5836] <... write resumed>) = 21 [pid 5833] <... close resumed>) = 0 [pid 5837] <... openat resumed>) = 3 [pid 5836] close(3 [pid 5835] getpid( [pid 5834] close(3 [pid 5833] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC [pid 5837] write(3, "1024 1048576 500 1024", 21 [pid 5836] <... close resumed>) = 0 [pid 5835] <... getpid resumed>) = 1 [pid 5834] <... close resumed>) = 0 [pid 5833] <... openat resumed>) = 3 [pid 5837] <... write resumed>) = 21 [pid 5836] getpid( [pid 5835] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, [pid 5836] <... getpid resumed>) = 1 [pid 5837] close(3 [pid 5836] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, [pid 5835] <... capget resumed>{effective=1< [pid 5833] write(3, "1024 1048576 500 1024", 21 [pid 5836] <... capget resumed>{effective=1<) = 0 [pid 5836] capset({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [pid 5835] capset({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [pid 5834] <... getpid resumed>) = 1 [pid 5833] <... write resumed>) = 21 [pid 5837] getpid( [pid 5835] <... capset resumed>) = 0 [pid 5834] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, [pid 5833] close(3 [pid 5837] <... getpid resumed>) = 1 [pid 5835] unshare(CLONE_NEWNET [pid 5834] <... capget resumed>{effective=1<) = 0 [pid 5837] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, [pid 5836] <... capset resumed>) = 0 [pid 5836] unshare(CLONE_NEWNET [pid 5834] capset({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [pid 5833] getpid( [pid 5837] <... capget resumed>{effective=1<) = 1 [pid 5837] capset({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [pid 5833] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, [pid 5837] <... capset resumed>) = 0 [pid 5833] <... capget resumed>{effective=1< [pid 5833] capset({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [pid 5834] <... unshare resumed>) = 0 [pid 5835] <... unshare resumed>) = 0 [pid 5834] openat(AT_FDCWD, "/proc/sys/net/ipv4/ping_group_range", O_WRONLY|O_CLOEXEC [pid 5836] <... unshare resumed>) = 0 [pid 5835] openat(AT_FDCWD, "/proc/sys/net/ipv4/ping_group_range", O_WRONLY|O_CLOEXEC [pid 5836] openat(AT_FDCWD, "/proc/sys/net/ipv4/ping_group_range", O_WRONLY|O_CLOEXEC) = 3 [pid 5834] <... openat resumed>) = 3 [pid 5836] write(3, "0 65535", 7) = 7 [pid 5835] <... openat resumed>) = 3 [pid 5834] write(3, "0 65535", 7 [pid 5836] close(3 [pid 5834] <... write resumed>) = 7 [pid 5836] <... close resumed>) = 0 [pid 5836] openat(AT_FDCWD, "/proc/sys/fs/mount-max", O_WRONLY|O_CLOEXEC [pid 5834] close(3 [pid 5835] write(3, "0 65535", 7 [pid 5836] <... openat resumed>) = 3 [pid 5835] <... write resumed>) = 7 [pid 5835] close(3 [pid 5836] write(3, "100000", 6 [pid 5835] <... close resumed>) = 0 [pid 5836] <... write resumed>) = 6 [pid 5836] close(3 [pid 5835] openat(AT_FDCWD, "/proc/sys/fs/mount-max", O_WRONLY|O_CLOEXEC [pid 5836] <... close resumed>) = 0 [pid 5835] <... openat resumed>) = 3 [pid 5834] <... close resumed>) = 0 [pid 5835] write(3, "100000", 6 [pid 5834] openat(AT_FDCWD, "/proc/sys/fs/mount-max", O_WRONLY|O_CLOEXEC [pid 5835] <... write resumed>) = 6 [pid 5836] mkdir("./syz-tmp", 0777 [pid 5835] close(3 [pid 5834] <... openat resumed>) = 3 [pid 5836] <... mkdir resumed>) = 0 [pid 5835] <... close resumed>) = 0 [pid 5834] write(3, "100000", 6 [pid 5835] mkdir("./syz-tmp", 0777 [pid 5834] <... write resumed>) = 6 [pid 5836] mount("", "./syz-tmp", "tmpfs", 0, NULL [pid 5835] <... mkdir resumed>) = 0 [pid 5834] close(3 [pid 5836] <... mount resumed>) = 0 [pid 5837] <... unshare resumed>) = 0 [pid 5835] mount("", "./syz-tmp", "tmpfs", 0, NULL [pid 5834] <... close resumed>) = 0 [pid 5833] <... unshare resumed>) = 0 [pid 5837] openat(AT_FDCWD, "/proc/sys/net/ipv4/ping_group_range", O_WRONLY|O_CLOEXEC [pid 5836] mkdir("./syz-tmp/newroot", 0777 [pid 5833] openat(AT_FDCWD, "/proc/sys/net/ipv4/ping_group_range", O_WRONLY|O_CLOEXEC [pid 5836] <... mkdir resumed>) = 0 [pid 5835] <... mount resumed>) = 0 [pid 5835] mkdir("./syz-tmp/newroot", 0777 [pid 5837] <... openat resumed>) = 3 [pid 5836] mkdir("./syz-tmp/newroot/dev", 0700 [pid 5834] mkdir("./syz-tmp", 0777 [pid 5833] <... openat resumed>) = 3 [pid 5837] write(3, "0 65535", 7 [pid 5836] <... mkdir resumed>) = 0 [pid 5835] <... mkdir resumed>) = 0 [pid 5833] write(3, "0 65535", 7 [pid 5837] <... write resumed>) = 7 [pid 5836] mount("/dev", "./syz-tmp/newroot/dev", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5835] mkdir("./syz-tmp/newroot/dev", 0700 [pid 5834] <... mkdir resumed>) = 0 [pid 5833] <... write resumed>) = 7 [pid 5837] close(3 [pid 5834] mount("", "./syz-tmp", "tmpfs", 0, NULL [pid 5837] <... close resumed>) = 0 [pid 5836] <... mount resumed>) = 0 [pid 5835] <... mkdir resumed>) = 0 [pid 5833] close(3 [pid 5837] openat(AT_FDCWD, "/proc/sys/fs/mount-max", O_WRONLY|O_CLOEXEC [pid 5836] mkdir("./syz-tmp/newroot/proc", 0700 [pid 5834] <... mount resumed>) = 0 [pid 5833] <... close resumed>) = 0 [pid 5837] <... openat resumed>) = 3 [pid 5835] mount("/dev", "./syz-tmp/newroot/dev", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5836] <... mkdir resumed>) = 0 [pid 5833] openat(AT_FDCWD, "/proc/sys/fs/mount-max", O_WRONLY|O_CLOEXEC [pid 5836] mount("syz-proc", "./syz-tmp/newroot/proc", "proc", 0, NULL [pid 5835] <... mount resumed>) = 0 [pid 5833] <... openat resumed>) = 3 [pid 5837] write(3, "100000", 6 [pid 5836] <... mount resumed>) = 0 [pid 5834] mkdir("./syz-tmp/newroot", 0777 [pid 5833] write(3, "100000", 6 [pid 5837] <... write resumed>) = 6 [pid 5835] mkdir("./syz-tmp/newroot/proc", 0700 [pid 5833] <... write resumed>) = 6 [pid 5837] close(3 [pid 5833] close(3 [pid 5837] <... close resumed>) = 0 [pid 5833] <... close resumed>) = 0 [pid 5837] mkdir("./syz-tmp", 0777 [pid 5836] mkdir("./syz-tmp/newroot/selinux", 0700 [pid 5834] <... mkdir resumed>) = 0 [pid 5833] mkdir("./syz-tmp", 0777 [pid 5836] <... mkdir resumed>) = 0 [pid 5836] mount("/selinux", "./syz-tmp/newroot/selinux", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5837] <... mkdir resumed>) = 0 [pid 5835] <... mkdir resumed>) = 0 [pid 5834] mkdir("./syz-tmp/newroot/dev", 0700 [pid 5833] <... mkdir resumed>) = 0 [pid 5837] mount("", "./syz-tmp", "tmpfs", 0, NULL [pid 5836] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5833] mount("", "./syz-tmp", "tmpfs", 0, NULL [pid 5837] <... mount resumed>) = 0 [pid 5836] mount("/sys/fs/selinux", "./syz-tmp/newroot/selinux", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5835] mount("syz-proc", "./syz-tmp/newroot/proc", "proc", 0, NULL [pid 5834] <... mkdir resumed>) = 0 [pid 5833] <... mount resumed>) = 0 [pid 5837] mkdir("./syz-tmp/newroot", 0777 [pid 5834] mount("/dev", "./syz-tmp/newroot/dev", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5837] <... mkdir resumed>) = 0 [pid 5836] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5837] mkdir("./syz-tmp/newroot/dev", 0700 [pid 5836] mkdir("./syz-tmp/newroot/sys", 0700 [pid 5835] <... mount resumed>) = 0 [pid 5834] <... mount resumed>) = 0 [pid 5833] mkdir("./syz-tmp/newroot", 0777 [pid 5835] mkdir("./syz-tmp/newroot/selinux", 0700 [pid 5837] <... mkdir resumed>) = 0 [pid 5836] <... mkdir resumed>) = 0 [pid 5834] mkdir("./syz-tmp/newroot/proc", 0700 [pid 5833] <... mkdir resumed>) = 0 [pid 5837] mount("/dev", "./syz-tmp/newroot/dev", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5836] mount("/sys", "./syz-tmp/newroot/sys", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5835] <... mkdir resumed>) = 0 [pid 5834] <... mkdir resumed>) = 0 [pid 5833] mkdir("./syz-tmp/newroot/dev", 0700 [pid 5837] <... mount resumed>) = 0 [pid 5836] <... mount resumed>) = 0 [pid 5835] mount("/selinux", "./syz-tmp/newroot/selinux", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5834] mount("syz-proc", "./syz-tmp/newroot/proc", "proc", 0, NULL [pid 5836] mount("/sys/kernel/debug", "./syz-tmp/newroot/sys/kernel/debug", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5835] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5837] mkdir("./syz-tmp/newroot/proc", 0700 [pid 5834] <... mount resumed>) = 0 [pid 5833] <... mkdir resumed>) = 0 [pid 5837] <... mkdir resumed>) = 0 [pid 5835] mount("/sys/fs/selinux", "./syz-tmp/newroot/selinux", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5833] mount("/dev", "./syz-tmp/newroot/dev", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5836] <... mount resumed>) = 0 [pid 5836] mount("/sys/fs/smackfs", "./syz-tmp/newroot/sys/fs/smackfs", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5834] mkdir("./syz-tmp/newroot/selinux", 0700 [pid 5837] mount("syz-proc", "./syz-tmp/newroot/proc", "proc", 0, NULL [pid 5833] <... mount resumed>) = 0 [pid 5833] mkdir("./syz-tmp/newroot/proc", 0700) = 0 [pid 5837] <... mount resumed>) = 0 [pid 5836] <... mount resumed>) = 0 [pid 5835] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5834] <... mkdir resumed>) = 0 [pid 5833] mount("syz-proc", "./syz-tmp/newroot/proc", "proc", 0, NULL [pid 5837] mkdir("./syz-tmp/newroot/selinux", 0700 [pid 5836] mount("/proc/sys/fs/binfmt_misc", "./syz-tmp/newroot/proc/sys/fs/binfmt_misc", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5835] mkdir("./syz-tmp/newroot/sys", 0700 [pid 5834] mount("/selinux", "./syz-tmp/newroot/selinux", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5833] <... mount resumed>) = 0 [pid 5837] <... mkdir resumed>) = 0 [pid 5834] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5837] mount("/selinux", "./syz-tmp/newroot/selinux", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5835] <... mkdir resumed>) = 0 [pid 5834] mount("/sys/fs/selinux", "./syz-tmp/newroot/selinux", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5833] mkdir("./syz-tmp/newroot/selinux", 0700 [pid 5837] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5836] <... mount resumed>) = 0 [pid 5835] mount("/sys", "./syz-tmp/newroot/sys", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5834] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5833] <... mkdir resumed>) = 0 [pid 5836] mkdir("./syz-tmp/newroot/syzcgroup", 0700 [pid 5837] mount("/sys/fs/selinux", "./syz-tmp/newroot/selinux", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5836] <... mkdir resumed>) = 0 [pid 5835] <... mount resumed>) = 0 [pid 5834] mkdir("./syz-tmp/newroot/sys", 0700 [pid 5837] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5833] mount("/selinux", "./syz-tmp/newroot/selinux", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5837] mkdir("./syz-tmp/newroot/sys", 0700) = 0 [pid 5837] mount("/sys", "./syz-tmp/newroot/sys", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5836] mkdir("./syz-tmp/newroot/syzcgroup/unified", 0700 [pid 5835] mount("/sys/kernel/debug", "./syz-tmp/newroot/sys/kernel/debug", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5834] <... mkdir resumed>) = 0 [pid 5833] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5837] <... mount resumed>) = 0 [pid 5836] <... mkdir resumed>) = 0 [pid 5833] mount("/sys/fs/selinux", "./syz-tmp/newroot/selinux", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5837] mount("/sys/kernel/debug", "./syz-tmp/newroot/sys/kernel/debug", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5834] mount("/sys", "./syz-tmp/newroot/sys", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5833] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5837] <... mount resumed>) = 0 [pid 5834] <... mount resumed>) = 0 [pid 5835] <... mount resumed>) = 0 [pid 5836] mkdir("./syz-tmp/newroot/syzcgroup/cpu", 0700 [pid 5833] mkdir("./syz-tmp/newroot/sys", 0700 [pid 5835] mount("/sys/fs/smackfs", "./syz-tmp/newroot/sys/fs/smackfs", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5837] mount("/sys/fs/smackfs", "./syz-tmp/newroot/sys/fs/smackfs", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5836] <... mkdir resumed>) = 0 [pid 5833] <... mkdir resumed>) = 0 [pid 5837] <... mount resumed>) = 0 [pid 5836] mkdir("./syz-tmp/newroot/syzcgroup/net", 0700 [pid 5835] <... mount resumed>) = 0 [pid 5834] mount("/sys/kernel/debug", "./syz-tmp/newroot/sys/kernel/debug", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5837] mount("/proc/sys/fs/binfmt_misc", "./syz-tmp/newroot/proc/sys/fs/binfmt_misc", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5836] <... mkdir resumed>) = 0 [pid 5835] mount("/proc/sys/fs/binfmt_misc", "./syz-tmp/newroot/proc/sys/fs/binfmt_misc", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5834] <... mount resumed>) = 0 [pid 5833] mount("/sys", "./syz-tmp/newroot/sys", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5837] <... mount resumed>) = 0 [pid 5835] <... mount resumed>) = 0 [pid 5836] mount("/syzcgroup/unified", "./syz-tmp/newroot/syzcgroup/unified", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5835] mkdir("./syz-tmp/newroot/syzcgroup", 0700 [pid 5837] mkdir("./syz-tmp/newroot/syzcgroup", 0700) = 0 [pid 5836] <... mount resumed>) = 0 [pid 5835] <... mkdir resumed>) = 0 [pid 5833] <... mount resumed>) = 0 [pid 5837] mkdir("./syz-tmp/newroot/syzcgroup/unified", 0700) = 0 [pid 5833] mount("/sys/kernel/debug", "./syz-tmp/newroot/sys/kernel/debug", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5837] mkdir("./syz-tmp/newroot/syzcgroup/cpu", 0700 [pid 5833] <... mount resumed>) = 0 [pid 5837] <... mkdir resumed>) = 0 [pid 5837] mkdir("./syz-tmp/newroot/syzcgroup/net", 0700 [pid 5836] mount("/syzcgroup/cpu", "./syz-tmp/newroot/syzcgroup/cpu", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5835] mkdir("./syz-tmp/newroot/syzcgroup/unified", 0700 [pid 5834] mount("/sys/fs/smackfs", "./syz-tmp/newroot/sys/fs/smackfs", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5833] mount("/sys/fs/smackfs", "./syz-tmp/newroot/sys/fs/smackfs", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5837] <... mkdir resumed>) = 0 [pid 5836] <... mount resumed>) = 0 [pid 5835] <... mkdir resumed>) = 0 [pid 5834] <... mount resumed>) = 0 [pid 5833] <... mount resumed>) = 0 [pid 5837] mount("/syzcgroup/unified", "./syz-tmp/newroot/syzcgroup/unified", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5835] mkdir("./syz-tmp/newroot/syzcgroup/cpu", 0700 [pid 5833] mount("/proc/sys/fs/binfmt_misc", "./syz-tmp/newroot/proc/sys/fs/binfmt_misc", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5836] mount("/syzcgroup/net", "./syz-tmp/newroot/syzcgroup/net", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5834] mount("/proc/sys/fs/binfmt_misc", "./syz-tmp/newroot/proc/sys/fs/binfmt_misc", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5837] <... mount resumed>) = 0 [pid 5835] <... mkdir resumed>) = 0 [pid 5833] <... mount resumed>) = 0 [pid 5837] mount("/syzcgroup/cpu", "./syz-tmp/newroot/syzcgroup/cpu", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5835] mkdir("./syz-tmp/newroot/syzcgroup/net", 0700 [pid 5834] <... mount resumed>) = 0 [pid 5833] mkdir("./syz-tmp/newroot/syzcgroup", 0700 [pid 5837] <... mount resumed>) = 0 [pid 5836] <... mount resumed>) = 0 [pid 5835] <... mkdir resumed>) = 0 [pid 5834] mkdir("./syz-tmp/newroot/syzcgroup", 0700 [pid 5833] <... mkdir resumed>) = 0 [pid 5837] mount("/syzcgroup/net", "./syz-tmp/newroot/syzcgroup/net", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5834] <... mkdir resumed>) = 0 [pid 5836] mkdir("./syz-tmp/pivot", 0777 [pid 5833] mkdir("./syz-tmp/newroot/syzcgroup/unified", 0700 [pid 5836] <... mkdir resumed>) = 0 [pid 5835] mount("/syzcgroup/unified", "./syz-tmp/newroot/syzcgroup/unified", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5833] <... mkdir resumed>) = 0 [pid 5837] <... mount resumed>) = 0 [pid 5834] mkdir("./syz-tmp/newroot/syzcgroup/unified", 0700 [pid 5835] <... mount resumed>) = 0 [pid 5837] mkdir("./syz-tmp/pivot", 0777 [pid 5836] pivot_root("./syz-tmp", "./syz-tmp/pivot" [pid 5834] <... mkdir resumed>) = 0 [pid 5833] mkdir("./syz-tmp/newroot/syzcgroup/cpu", 0700 [pid 5835] mount("/syzcgroup/cpu", "./syz-tmp/newroot/syzcgroup/cpu", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5836] <... pivot_root resumed>) = 0 [pid 5837] <... mkdir resumed>) = 0 [pid 5837] pivot_root("./syz-tmp", "./syz-tmp/pivot" [pid 5836] chdir("/" [pid 5835] <... mount resumed>) = 0 [pid 5834] mkdir("./syz-tmp/newroot/syzcgroup/cpu", 0700 [pid 5833] <... mkdir resumed>) = 0 [pid 5835] mount("/syzcgroup/net", "./syz-tmp/newroot/syzcgroup/net", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5837] <... pivot_root resumed>) = 0 [pid 5836] <... chdir resumed>) = 0 [pid 5835] <... mount resumed>) = 0 [pid 5834] <... mkdir resumed>) = 0 [pid 5833] mkdir("./syz-tmp/newroot/syzcgroup/net", 0700 [pid 5837] chdir("/" [pid 5836] umount2("./pivot", MNT_DETACH [pid 5833] <... mkdir resumed>) = 0 [pid 5837] <... chdir resumed>) = 0 [pid 5834] mkdir("./syz-tmp/newroot/syzcgroup/net", 0700 [pid 5833] mount("/syzcgroup/unified", "./syz-tmp/newroot/syzcgroup/unified", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5837] umount2("./pivot", MNT_DETACH [pid 5835] mkdir("./syz-tmp/pivot", 0777 [pid 5834] <... mkdir resumed>) = 0 [pid 5833] <... mount resumed>) = 0 [pid 5836] <... umount2 resumed>) = 0 [pid 5835] <... mkdir resumed>) = 0 [pid 5834] mount("/syzcgroup/unified", "./syz-tmp/newroot/syzcgroup/unified", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5836] chroot("./newroot" [pid 5834] <... mount resumed>) = 0 [pid 5833] mount("/syzcgroup/cpu", "./syz-tmp/newroot/syzcgroup/cpu", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5836] <... chroot resumed>) = 0 [pid 5835] pivot_root("./syz-tmp", "./syz-tmp/pivot" [pid 5837] <... umount2 resumed>) = 0 [pid 5836] chdir("/" [pid 5835] <... pivot_root resumed>) = 0 [pid 5833] <... mount resumed>) = 0 [pid 5837] chroot("./newroot" [pid 5836] <... chdir resumed>) = 0 [pid 5834] mount("/syzcgroup/cpu", "./syz-tmp/newroot/syzcgroup/cpu", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0 [pid 5837] <... chroot resumed>) = 0 [pid 5836] mkdir("/dev/gadgetfs", 0777 [pid 5835] chdir("/" [pid 5834] mount("/syzcgroup/net", "./syz-tmp/newroot/syzcgroup/net", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5833] mount("/syzcgroup/net", "./syz-tmp/newroot/syzcgroup/net", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL [pid 5837] chdir("/" [pid 5836] <... mkdir resumed>) = 0 [pid 5834] <... mount resumed>) = 0 [pid 5837] <... chdir resumed>) = 0 [pid 5836] mount("gadgetfs", "/dev/gadgetfs", "gadgetfs", 0, NULL [pid 5834] mkdir("./syz-tmp/pivot", 0777 [pid 5833] <... mount resumed>) = 0 [pid 5837] mkdir("/dev/gadgetfs", 0777 [pid 5835] <... chdir resumed>) = 0 [pid 5836] <... mount resumed>) = 0 [pid 5835] umount2("./pivot", MNT_DETACH [pid 5837] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5836] mkdir("/dev/binderfs", 0777 [pid 5834] <... mkdir resumed>) = 0 [pid 5833] mkdir("./syz-tmp/pivot", 0777 [pid 5837] mount("gadgetfs", "/dev/gadgetfs", "gadgetfs", 0, NULL [pid 5836] <... mkdir resumed>) = 0 [pid 5835] <... umount2 resumed>) = 0 [pid 5834] pivot_root("./syz-tmp", "./syz-tmp/pivot" [pid 5833] <... mkdir resumed>) = 0 [pid 5835] chroot("./newroot" [pid 5837] <... mount resumed>) = 0 [pid 5835] <... chroot resumed>) = 0 [pid 5833] pivot_root("./syz-tmp", "./syz-tmp/pivot" [pid 5835] chdir("/") = 0 [pid 5835] mkdir("/dev/gadgetfs", 0777 [pid 5837] mkdir("/dev/binderfs", 0777 [pid 5836] mount("binder", "/dev/binderfs", "binder", 0, NULL [pid 5835] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5834] <... pivot_root resumed>) = 0 [pid 5833] <... pivot_root resumed>) = 0 [pid 5834] chdir("/" [pid 5833] chdir("/" [pid 5837] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5834] <... chdir resumed>) = 0 [pid 5833] <... chdir resumed>) = 0 [pid 5833] umount2("./pivot", MNT_DETACH [pid 5834] umount2("./pivot", MNT_DETACH [pid 5837] mount("binder", "/dev/binderfs", "binder", 0, NULL [pid 5835] mount("gadgetfs", "/dev/gadgetfs", "gadgetfs", 0, NULL [pid 5837] <... mount resumed>) = 0 [pid 5836] <... mount resumed>) = 0 [pid 5835] <... mount resumed>) = 0 [pid 5834] <... umount2 resumed>) = 0 [pid 5833] <... umount2 resumed>) = 0 [pid 5836] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL [pid 5835] mkdir("/dev/binderfs", 0777 [pid 5834] chroot("./newroot" [pid 5837] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL [pid 5835] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5834] <... chroot resumed>) = 0 [pid 5833] chroot("./newroot" [pid 5837] <... mount resumed>) = -1 EBUSY (Device or resource busy) [pid 5836] <... mount resumed>) = -1 EBUSY (Device or resource busy) [pid 5835] mount("binder", "/dev/binderfs", "binder", 0, NULL [pid 5834] chdir("/" [pid 5837] getpid( [pid 5833] <... chroot resumed>) = 0 [pid 5837] <... getpid resumed>) = 1 [pid 5836] getpid( [pid 5835] <... mount resumed>) = 0 [pid 5834] <... chdir resumed>) = 0 [pid 5837] mkdir("/syzcgroup/unified/syz4", 0777 [pid 5836] <... getpid resumed>) = 1 [pid 5836] mkdir("/syzcgroup/unified/syz2", 0777 [pid 5834] mkdir("/dev/gadgetfs", 0777 [pid 5836] <... mkdir resumed>) = 0 [pid 5834] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5833] chdir("/" [pid 5835] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5834] mount("gadgetfs", "/dev/gadgetfs", "gadgetfs", 0, NULL [pid 5833] <... chdir resumed>) = 0 [pid 5834] <... mount resumed>) = 0 [pid 5833] mkdir("/dev/gadgetfs", 0777 [pid 5835] getpid( [pid 5834] mkdir("/dev/binderfs", 0777 [pid 5833] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5835] <... getpid resumed>) = 1 [pid 5833] mount("gadgetfs", "/dev/gadgetfs", "gadgetfs", 0, NULL [pid 5835] mkdir("/syzcgroup/unified/syz3", 0777 [pid 5834] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5833] <... mount resumed>) = 0 [pid 5837] <... mkdir resumed>) = 0 [pid 5836] openat(AT_FDCWD, "/syzcgroup/unified/syz2/pids.max", O_WRONLY|O_CLOEXEC [pid 5834] mount("binder", "/dev/binderfs", "binder", 0, NULL [pid 5833] mkdir("/dev/binderfs", 0777 [pid 5835] <... mkdir resumed>) = 0 [pid 5834] <... mount resumed>) = 0 [pid 5834] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL [pid 5837] openat(AT_FDCWD, "/syzcgroup/unified/syz4/pids.max", O_WRONLY|O_CLOEXEC [pid 5836] <... openat resumed>) = 3 [pid 5835] openat(AT_FDCWD, "/syzcgroup/unified/syz3/pids.max", O_WRONLY|O_CLOEXEC [pid 5833] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5837] <... openat resumed>) = 3 [pid 5836] write(3, "32", 2 [pid 5834] <... mount resumed>) = -1 EBUSY (Device or resource busy) [pid 5835] <... openat resumed>) = 3 [pid 5833] mount("binder", "/dev/binderfs", "binder", 0, NULL [pid 5837] write(3, "32", 2 [pid 5836] <... write resumed>) = 2 [pid 5835] write(3, "32", 2 [pid 5836] close(3 [pid 5834] getpid( [pid 5833] <... mount resumed>) = 0 [pid 5835] <... write resumed>) = 2 [pid 5836] <... close resumed>) = 0 [pid 5833] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL [pid 5836] openat(AT_FDCWD, "/syzcgroup/unified/syz2/cgroup.procs", O_WRONLY|O_CLOEXEC [pid 5835] close(3 [pid 5837] <... write resumed>) = 2 [pid 5834] <... getpid resumed>) = 1 [pid 5837] close(3 [pid 5834] mkdir("/syzcgroup/unified/syz1", 0777 [pid 5833] <... mount resumed>) = -1 EBUSY (Device or resource busy) [pid 5837] <... close resumed>) = 0 [pid 5836] <... openat resumed>) = 3 [pid 5835] <... close resumed>) = 0 [pid 5835] openat(AT_FDCWD, "/syzcgroup/unified/syz3/cgroup.procs", O_WRONLY|O_CLOEXEC) = 3 [pid 5837] openat(AT_FDCWD, "/syzcgroup/unified/syz4/cgroup.procs", O_WRONLY|O_CLOEXEC [pid 5833] getpid( [pid 5836] write(3, "1", 1 [pid 5835] write(3, "1", 1 [pid 5833] <... getpid resumed>) = 1 [pid 5837] <... openat resumed>) = 3 [pid 5837] write(3, "1", 1 [pid 5834] <... mkdir resumed>) = 0 [pid 5833] mkdir("/syzcgroup/unified/syz0", 0777 [pid 5834] openat(AT_FDCWD, "/syzcgroup/unified/syz1/pids.max", O_WRONLY|O_CLOEXEC [pid 5835] <... write resumed>) = 1 [pid 5837] <... write resumed>) = 1 [pid 5835] close(3 [pid 5837] close(3) = 0 [pid 5837] mkdir("/syzcgroup/cpu/syz4", 0777 [pid 5836] <... write resumed>) = 1 [pid 5835] <... close resumed>) = 0 [pid 5834] <... openat resumed>) = 3 [pid 5833] <... mkdir resumed>) = 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 5836] close(3 [pid 5833] write(3, "1", 1 [pid 5835] mkdir("/syzcgroup/cpu/syz3", 0777 [pid 5836] <... close resumed>) = 0 [pid 5834] write(3, "32", 2 [pid 5836] mkdir("/syzcgroup/cpu/syz2", 0777 [pid 5834] <... write resumed>) = 2 [pid 5834] close(3) = 0 [pid 5834] openat(AT_FDCWD, "/syzcgroup/unified/syz1/cgroup.procs", O_WRONLY|O_CLOEXEC) = 3 [pid 5834] write(3, "1", 1) = 1 [pid 5834] close(3) = 0 [pid 5834] mkdir("/syzcgroup/cpu/syz1", 0777 [pid 5837] <... mkdir resumed>) = 0 [pid 5833] <... write resumed>) = 1 [pid 5837] openat(AT_FDCWD, "/syzcgroup/cpu/syz4/cgroup.procs", O_WRONLY|O_CLOEXEC [pid 5833] close(3) = 0 [pid 5833] mkdir("/syzcgroup/cpu/syz0", 0777 [pid 5835] <... mkdir resumed>) = 0 [pid 5835] openat(AT_FDCWD, "/syzcgroup/cpu/syz3/cgroup.procs", O_WRONLY|O_CLOEXEC [pid 5833] <... mkdir resumed>) = 0 [pid 5833] openat(AT_FDCWD, "/syzcgroup/cpu/syz0/cgroup.procs", O_WRONLY|O_CLOEXEC [pid 5837] <... openat resumed>) = 3 [pid 5836] <... mkdir resumed>) = 0 [pid 5835] <... openat resumed>) = 3 [pid 5834] <... mkdir resumed>) = 0 [pid 5833] <... openat resumed>) = 3 [pid 5835] write(3, "1", 1 [pid 5837] write(3, "1", 1 [pid 5836] openat(AT_FDCWD, "/syzcgroup/cpu/syz2/cgroup.procs", O_WRONLY|O_CLOEXEC [pid 5834] openat(AT_FDCWD, "/syzcgroup/cpu/syz1/cgroup.procs", O_WRONLY|O_CLOEXEC [pid 5833] write(3, "1", 1 [pid 5837] <... write resumed>) = 1 [pid 5835] <... write resumed>) = 1 [pid 5836] <... openat resumed>) = 3 [pid 5835] close(3 [pid 5834] <... openat resumed>) = 3 [pid 5834] write(3, "1", 1 [pid 5837] close(3 [pid 5836] write(3, "1", 1 [pid 5835] <... close resumed>) = 0 [pid 5834] <... write resumed>) = 1 [pid 5833] <... write resumed>) = 1 [pid 5837] <... close resumed>) = 0 [pid 5836] <... write resumed>) = 1 [pid 5835] openat(AT_FDCWD, "/syzcgroup/cpu/syz3/memory.soft_limit_in_bytes", O_WRONLY|O_CLOEXEC [pid 5834] close(3 [pid 5837] openat(AT_FDCWD, "/syzcgroup/cpu/syz4/memory.soft_limit_in_bytes", O_WRONLY|O_CLOEXEC [pid 5836] close(3 [pid 5834] <... close resumed>) = 0 [pid 5833] close(3 [pid 5837] <... openat resumed>) = 3 [pid 5835] <... openat resumed>) = 3 [pid 5833] <... close resumed>) = 0 [pid 5836] <... close resumed>) = 0 [pid 5837] write(3, "313524224", 9 [pid 5836] openat(AT_FDCWD, "/syzcgroup/cpu/syz2/memory.soft_limit_in_bytes", O_WRONLY|O_CLOEXEC [pid 5835] write(3, "313524224", 9 [pid 5834] openat(AT_FDCWD, "/syzcgroup/cpu/syz1/memory.soft_limit_in_bytes", O_WRONLY|O_CLOEXEC [pid 5833] openat(AT_FDCWD, "/syzcgroup/cpu/syz0/memory.soft_limit_in_bytes", O_WRONLY|O_CLOEXEC [pid 5836] <... openat resumed>) = 3 [pid 5834] <... openat resumed>) = 3 [pid 5836] write(3, "313524224", 9 [pid 5833] <... openat resumed>) = 3 [pid 5836] <... write resumed>) = 9 [pid 5834] write(3, "313524224", 9 [pid 5833] write(3, "313524224", 9 [pid 5836] close(3 [pid 5834] <... write resumed>) = 9 [pid 5836] <... close resumed>) = 0 [pid 5834] close(3 [pid 5833] <... write resumed>) = 9 [pid 5836] openat(AT_FDCWD, "/syzcgroup/cpu/syz2/memory.limit_in_bytes", O_WRONLY|O_CLOEXEC [pid 5834] <... close resumed>) = 0 [pid 5836] <... openat resumed>) = 3 [pid 5834] openat(AT_FDCWD, "/syzcgroup/cpu/syz1/memory.limit_in_bytes", O_WRONLY|O_CLOEXEC [pid 5833] close(3 [pid 5834] <... openat resumed>) = 3 [pid 5833] <... close resumed>) = 0 [pid 5837] <... write resumed>) = 9 [pid 5836] write(3, "314572800", 9 [pid 5833] openat(AT_FDCWD, "/syzcgroup/cpu/syz0/memory.limit_in_bytes", O_WRONLY|O_CLOEXEC [pid 5837] close(3 [pid 5836] <... write resumed>) = 9 [pid 5834] write(3, "314572800", 9 [pid 5833] <... openat resumed>) = 3 [pid 5835] <... write resumed>) = 9 [pid 5834] <... write resumed>) = 9 [pid 5837] <... close resumed>) = 0 [pid 5836] close(3 [pid 5835] close(3 [pid 5834] close(3 [pid 5833] write(3, "314572800", 9 [pid 5837] openat(AT_FDCWD, "/syzcgroup/cpu/syz4/memory.limit_in_bytes", O_WRONLY|O_CLOEXEC [pid 5836] <... close resumed>) = 0 [pid 5835] <... close resumed>) = 0 [pid 5834] <... close resumed>) = 0 [pid 5833] <... write resumed>) = 9 [pid 5835] openat(AT_FDCWD, "/syzcgroup/cpu/syz3/memory.limit_in_bytes", O_WRONLY|O_CLOEXEC [pid 5834] mkdir("/syzcgroup/net/syz1", 0777 [pid 5837] <... openat resumed>) = 3 [pid 5836] mkdir("/syzcgroup/net/syz2", 0777 [pid 5835] <... openat resumed>) = 3 [pid 5833] close(3 [pid 5837] write(3, "314572800", 9 [pid 5835] write(3, "314572800", 9) = 9 [pid 5835] close(3) = 0 [pid 5835] mkdir("/syzcgroup/net/syz3", 0777) = 0 [pid 5834] <... mkdir resumed>) = 0 [pid 5835] openat(AT_FDCWD, "/syzcgroup/net/syz3/cgroup.procs", O_WRONLY|O_CLOEXEC [pid 5833] <... close resumed>) = 0 [pid 5837] <... write resumed>) = 9 [pid 5833] mkdir("/syzcgroup/net/syz0", 0777 [pid 5837] close(3 [pid 5834] openat(AT_FDCWD, "/syzcgroup/net/syz1/cgroup.procs", O_WRONLY|O_CLOEXEC [pid 5837] <... close resumed>) = 0 [pid 5837] mkdir("/syzcgroup/net/syz4", 0777 [pid 5835] <... openat resumed>) = 3 [pid 5835] write(3, "1", 1) = 1 [pid 5835] close(3) = 0 [pid 5837] <... mkdir resumed>) = 0 [pid 5836] <... mkdir resumed>) = 0 [pid 5835] mkdir("./0", 0777 [pid 5834] <... openat resumed>) = 3 [pid 5833] <... mkdir resumed>) = 0 [pid 5834] write(3, "1", 1 [pid 5835] <... mkdir resumed>) = 0 [pid 5834] <... write resumed>) = 1 [pid 5837] openat(AT_FDCWD, "/syzcgroup/net/syz4/cgroup.procs", O_WRONLY|O_CLOEXEC [pid 5836] openat(AT_FDCWD, "/syzcgroup/net/syz2/cgroup.procs", O_WRONLY|O_CLOEXEC [pid 5835] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5834] close(3 [pid 5833] openat(AT_FDCWD, "/syzcgroup/net/syz0/cgroup.procs", O_WRONLY|O_CLOEXEC [pid 5834] <... close resumed>) = 0 [pid 5837] <... openat resumed>) = 3 [pid 5834] mkdir("./0", 0777 [pid 5836] <... openat resumed>) = 3 [pid 5835] <... openat resumed>) = 3 [pid 5834] <... mkdir resumed>) = 0 [pid 5833] <... openat resumed>) = 3 [pid 5834] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5834] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5837] write(3, "1", 1 [pid 5834] close(3 [pid 5837] <... write resumed>) = 1 [pid 5836] write(3, "1", 1 [pid 5835] ioctl(3, LOOP_CLR_FD [pid 5834] <... close resumed>) = 0 [pid 5833] write(3, "1", 1 [pid 5837] close(3 [pid 5836] <... write resumed>) = 1 [pid 5835] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5834] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5833] <... write resumed>) = 1 [pid 5837] <... close resumed>) = 0 [pid 5836] close(3 [pid 5835] close(3 [pid 5833] close(3 [pid 5837] mkdir("./0", 0777 [pid 5836] <... close resumed>) = 0 [pid 5835] <... close resumed>) = 0 ./strace-static-x86_64: Process 5844 attached [pid 5837] <... mkdir resumed>) = 0 [pid 5836] mkdir("./0", 0777 [pid 5835] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5833] <... close resumed>) = 0 [pid 5844] set_robust_list(0x55555fa3c6a0, 24 [pid 5834] <... clone resumed>, child_tidptr=0x55555fa3c690) = 2 [pid 5844] <... set_robust_list resumed>) = 0 [ 80.087241][ T5835] 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. ./strace-static-x86_64: Process 5845 attached [pid 5844] chdir("./0" [pid 5837] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5836] <... mkdir resumed>) = 0 [pid 5833] mkdir("./0", 0777 [pid 5845] set_robust_list(0x55555fa3c6a0, 24 [pid 5844] <... chdir resumed>) = 0 [pid 5837] <... openat resumed>) = 3 [pid 5836] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5833] <... mkdir resumed>) = 0 [pid 5845] <... set_robust_list resumed>) = 0 [pid 5844] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5837] ioctl(3, LOOP_CLR_FD [pid 5836] <... openat resumed>) = 3 [pid 5835] <... clone resumed>, child_tidptr=0x55555fa3c690) = 2 [pid 5833] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5845] chdir("./0" [pid 5844] <... prctl resumed>) = 0 [pid 5837] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5833] <... openat resumed>) = 3 [pid 5845] <... chdir resumed>) = 0 [pid 5844] setpgid(0, 0 [pid 5837] close(3 [pid 5836] ioctl(3, LOOP_CLR_FD [pid 5845] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5844] <... setpgid resumed>) = 0 [pid 5845] <... prctl resumed>) = 0 [pid 5837] <... close resumed>) = 0 [pid 5836] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5833] ioctl(3, LOOP_CLR_FD [pid 5845] setpgid(0, 0 [pid 5844] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 5837] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5836] close(3 [pid 5833] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5845] <... setpgid resumed>) = 0 [pid 5844] <... symlink resumed>) = 0 [pid 5833] close(3 [pid 5845] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5844] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 5836] <... close resumed>) = 0 [pid 5845] <... symlink resumed>) = 0 [pid 5836] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5833] <... close resumed>) = 0 [pid 5845] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5844] <... symlink resumed>) = 0 ./strace-static-x86_64: Process 5846 attached [pid 5845] <... symlink resumed>) = 0 [pid 5844] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5847 attached [pid 5846] set_robust_list(0x55555fa3c6a0, 24 [pid 5845] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5844] <... symlink resumed>) = 0 [pid 5837] <... clone resumed>, child_tidptr=0x55555fa3c690) = 2 [pid 5846] <... set_robust_list resumed>) = 0 [pid 5846] chdir("./0" [pid 5845] <... symlink resumed>) = 0 [pid 5844] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 5848 attached [pid 5847] set_robust_list(0x55555fa3c6a0, 24 [pid 5845] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5846] <... chdir resumed>) = 0 [pid 5844] <... openat resumed>) = 3 [pid 5836] <... clone resumed>, child_tidptr=0x55555fa3c690) = 2 [pid 5848] set_robust_list(0x55555fa3c6a0, 24 [pid 5847] <... set_robust_list resumed>) = 0 [pid 5846] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5845] <... openat resumed>) = 3 [pid 5844] write(3, "1000", 4 [pid 5833] <... clone resumed>, child_tidptr=0x55555fa3c690) = 2 [pid 5848] <... set_robust_list resumed>) = 0 [pid 5847] chdir("./0" [pid 5846] <... prctl resumed>) = 0 [pid 5845] write(3, "1000", 4 [pid 5844] <... write resumed>) = 4 [pid 5848] chdir("./0" [pid 5847] <... chdir resumed>) = 0 [pid 5846] setpgid(0, 0 [pid 5845] <... write resumed>) = 4 [pid 5844] close(3 [pid 5848] <... chdir resumed>) = 0 [pid 5847] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5846] <... setpgid resumed>) = 0 [pid 5845] close(3 [pid 5848] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5847] <... prctl resumed>) = 0 [pid 5846] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 5845] <... close resumed>) = 0 [pid 5844] <... close resumed>) = 0 [pid 5848] <... prctl resumed>) = 0 [pid 5847] setpgid(0, 0 [pid 5845] symlink("/dev/binderfs", "./binderfs" [pid 5844] symlink("/dev/binderfs", "./binderfs" [pid 5848] setpgid(0, 0 [pid 5847] <... setpgid resumed>) = 0 [pid 5846] <... symlink resumed>) = 0 [pid 5845] <... symlink resumed>) = 0 [pid 5844] <... symlink resumed>) = 0 [pid 5848] <... setpgid resumed>) = 0 [pid 5847] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5846] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" executing program executing program [pid 5845] write(1, "executing program\n", 18 [pid 5844] write(1, "executing program\n", 18 [pid 5848] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 5847] <... symlink resumed>) = 0 [pid 5846] <... symlink resumed>) = 0 [pid 5848] <... symlink resumed>) = 0 [pid 5847] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5846] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 5845] <... write resumed>) = 18 [pid 5844] <... write resumed>) = 18 [pid 5848] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 5847] <... symlink resumed>) = 0 [pid 5846] <... symlink resumed>) = 0 [pid 5844] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5845] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5848] <... symlink resumed>) = 0 [pid 5844] <... futex resumed>) = 0 [pid 5847] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5845] <... futex resumed>) = 0 [pid 5848] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 5844] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, [pid 5847] <... symlink resumed>) = 0 [pid 5844] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5848] <... symlink resumed>) = 0 [pid 5847] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5846] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5845] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, [pid 5844] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5848] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5847] <... openat resumed>) = 3 [pid 5846] <... openat resumed>) = 3 [pid 5845] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5844] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5848] <... openat resumed>) = 3 [pid 5847] write(3, "1000", 4 [pid 5846] write(3, "1000", 4 [pid 5845] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5844] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5848] write(3, "1000", 4 [pid 5847] <... write resumed>) = 4 [pid 5846] <... write resumed>) = 4 [pid 5845] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5844] <... mmap resumed>) = 0x7f0d6adff000 [pid 5848] <... write resumed>) = 4 [pid 5847] close(3 [pid 5845] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5844] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE [pid 5848] close(3 [pid 5847] <... close resumed>) = 0 [pid 5844] <... mprotect resumed>) = 0 [pid 5848] <... close resumed>) = 0 [pid 5846] close(3 [pid 5848] symlink("/dev/binderfs", "./binderfs" [pid 5847] symlink("/dev/binderfs", "./binderfs" [pid 5846] <... close resumed>) = 0 [pid 5845] <... mmap resumed>) = 0x7f0d6adff000 [pid 5844] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5847] <... symlink resumed>) = 0 [pid 5846] symlink("/dev/binderfs", "./binderfs" [pid 5845] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE [pid 5844] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5848] <... symlink resumed>) = 0 [pid 5848] write(1, "executing program\n", 18executing program executing program [pid 5847] write(1, "executing program\n", 18executing program [pid 5846] <... symlink resumed>) = 0 [pid 5845] <... mprotect resumed>) = 0 [pid 5844] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0} [pid 5848] <... write resumed>) = 18 [pid 5847] <... write resumed>) = 18 [pid 5846] write(1, "executing program\n", 18 [pid 5848] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5847] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5846] <... write resumed>) = 18 ./strace-static-x86_64: Process 5849 attached [pid 5848] <... futex resumed>) = 0 [pid 5847] <... futex resumed>) = 0 [pid 5846] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5845] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5844] <... clone3 resumed> => {parent_tid=[3]}, 88) = 3 [pid 5849] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 5848] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, [pid 5847] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, [pid 5846] <... futex resumed>) = 0 [pid 5845] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5844] rt_sigprocmask(SIG_SETMASK, [], [pid 5849] <... rseq resumed>) = 0 [pid 5848] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5847] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5846] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, [pid 5845] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0} [pid 5844] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5848] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5847] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], ./strace-static-x86_64: Process 5850 attached [pid 5849] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 5848] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5847] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5846] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5844] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5850] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 5849] <... set_robust_list resumed>) = 0 [pid 5848] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5847] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5846] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5845] <... clone3 resumed> => {parent_tid=[3]}, 88) = 3 [pid 5844] <... futex resumed>) = 0 [pid 5850] <... rseq resumed>) = 0 [pid 5849] rt_sigprocmask(SIG_SETMASK, [], [pid 5848] <... mmap resumed>) = 0x7f0d6adff000 [pid 5847] <... mmap resumed>) = 0x7f0d6adff000 [pid 5846] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5845] rt_sigprocmask(SIG_SETMASK, [], [pid 5844] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5850] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 5849] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5848] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE [pid 5847] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE [pid 5846] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5845] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5850] <... set_robust_list resumed>) = 0 [pid 5849] memfd_create("syzkaller", 0 [pid 5848] <... mprotect resumed>) = 0 [pid 5847] <... mprotect resumed>) = 0 [pid 5846] <... mmap resumed>) = 0x7f0d6adff000 [pid 5845] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5850] rt_sigprocmask(SIG_SETMASK, [], [pid 5849] <... memfd_create resumed>) = 3 [pid 5848] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5847] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5846] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE [pid 5845] <... futex resumed>) = 0 [pid 5850] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5849] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5848] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5847] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5846] <... mprotect resumed>) = 0 [pid 5845] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5850] memfd_create("syzkaller", 0 [pid 5849] <... mmap resumed>) = 0x7f0d62800000 [pid 5848] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0} [pid 5847] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0} [pid 5846] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5850] <... memfd_create resumed>) = 3 [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"..., 1048576./strace-static-x86_64: Process 5851 attached ./strace-static-x86_64: Process 5852 attached [pid 5850] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5851] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 5850] <... mmap resumed>) = 0x7f0d62800000 [pid 5847] <... clone3 resumed> => {parent_tid=[3]}, 88) = 3 [pid 5852] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 5851] <... rseq resumed>) = 0 [pid 5848] <... clone3 resumed> => {parent_tid=[3]}, 88) = 3 [pid 5847] rt_sigprocmask(SIG_SETMASK, [], [pid 5851] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 5847] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5852] <... rseq resumed>) = 0 [pid 5851] <... set_robust_list resumed>) = 0 [pid 5848] rt_sigprocmask(SIG_SETMASK, [], [pid 5847] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5852] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 5851] rt_sigprocmask(SIG_SETMASK, [], [pid 5848] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5847] <... futex resumed>) = 0 [pid 5852] <... set_robust_list resumed>) = 0 [pid 5851] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5848] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5847] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5846] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5846] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0}./strace-static-x86_64: Process 5853 attached [pid 5853] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 5846] <... clone3 resumed> => {parent_tid=[3]}, 88) = 3 [pid 5853] <... rseq resumed>) = 0 [pid 5846] rt_sigprocmask(SIG_SETMASK, [], [pid 5853] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 5846] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5853] <... set_robust_list resumed>) = 0 [pid 5846] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5853] rt_sigprocmask(SIG_SETMASK, [], [pid 5846] <... futex resumed>) = 0 [pid 5853] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5846] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5853] memfd_create("syzkaller", 0 [pid 5850] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5853] <... memfd_create resumed>) = 3 [pid 5853] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5852] rt_sigprocmask(SIG_SETMASK, [], [pid 5848] <... futex resumed>) = 0 [pid 5853] <... mmap resumed>) = 0x7f0d62800000 [pid 5851] memfd_create("syzkaller", 0 [pid 5852] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5848] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5852] memfd_create("syzkaller", 0 [pid 5851] <... memfd_create resumed>) = 3 [pid 5852] <... memfd_create resumed>) = 3 [pid 5851] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [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"..., 1048576 [pid 5852] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5851] <... mmap resumed>) = 0x7f0d62800000 [pid 5852] <... mmap resumed>) = 0x7f0d62800000 [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"..., 1048576 [pid 5853] <... write resumed>) = 1048576 [pid 5850] <... write resumed>) = 1048576 [pid 5849] <... write resumed>) = 1048576 [pid 5849] munmap(0x7f0d62800000, 138412032) = 0 [pid 5849] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5853] munmap(0x7f0d62800000, 138412032) = 0 [pid 5849] ioctl(4, LOOP_SET_FD, 3 [pid 5852] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5850] munmap(0x7f0d62800000, 138412032 [pid 5853] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5853] ioctl(4, LOOP_SET_FD, 3 [pid 5851] <... write resumed>) = 1048576 [pid 5850] <... munmap resumed>) = 0 [pid 5853] <... ioctl resumed>) = 0 [pid 5852] <... write resumed>) = 1048576 [pid 5851] munmap(0x7f0d62800000, 138412032 [pid 5850] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5849] <... ioctl resumed>) = 0 [ 80.321605][ T5849] loop1: detected capacity change from 0 to 2048 [ 80.337921][ T5853] loop4: detected capacity change from 0 to 2048 [pid 5853] close(3 [pid 5852] munmap(0x7f0d62800000, 138412032 [pid 5851] <... munmap resumed>) = 0 [pid 5850] <... openat resumed>) = 4 [pid 5849] close(3 [pid 5851] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5850] ioctl(4, LOOP_SET_FD, 3 [pid 5851] <... openat resumed>) = 4 [pid 5851] ioctl(4, LOOP_SET_FD, 3 [pid 5850] <... ioctl resumed>) = 0 [pid 5853] <... close resumed>) = 0 [pid 5852] <... munmap resumed>) = 0 [pid 5850] close(3 [pid 5849] <... close resumed>) = 0 [pid 5853] close(4 [pid 5852] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5850] <... close resumed>) = 0 [pid 5849] close(4 [pid 5853] <... close resumed>) = 0 [pid 5852] <... openat resumed>) = 4 [pid 5851] <... ioctl resumed>) = 0 [pid 5850] close(4 [pid 5849] <... close resumed>) = 0 [pid 5853] mkdir("./file2", 0777 [pid 5852] ioctl(4, LOOP_SET_FD, 3 [pid 5850] <... close resumed>) = 0 [pid 5849] mkdir("./file2", 0777 [pid 5853] <... mkdir resumed>) = 0 [pid 5851] close(3 [pid 5849] <... mkdir resumed>) = 0 [pid 5853] mount("/dev/loop4", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 5849] mount("/dev/loop1", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 5851] <... close resumed>) = 0 [pid 5850] mkdir("./file2", 0777 [pid 5851] close(4 [pid 5850] <... mkdir resumed>) = 0 [pid 5851] <... close resumed>) = 0 [pid 5850] mount("/dev/loop3", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 5851] mkdir("./file2", 0777 [pid 5852] <... ioctl resumed>) = 0 [pid 5851] <... mkdir resumed>) = 0 [pid 5852] close(3 [pid 5851] mount("/dev/loop2", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 5852] <... close resumed>) = 0 [ 80.371755][ T5850] loop3: detected capacity change from 0 to 2048 [ 80.380674][ T5851] loop2: detected capacity change from 0 to 2048 [ 80.396977][ T5852] loop0: detected capacity change from 0 to 2048 [ 80.409380][ T5853] NILFS (loop4): broken superblock, retrying with spare superblock (blocksize = 1024) [pid 5852] close(4) = 0 [pid 5852] mkdir("./file2", 0777) = 0 [ 80.426912][ T5851] NILFS (loop2): broken superblock, retrying with spare superblock (blocksize = 1024) [ 80.435363][ T5849] NILFS (loop1): broken superblock, retrying with spare superblock (blocksize = 1024) [ 80.440741][ T5850] NILFS (loop3): broken superblock, retrying with spare superblock (blocksize = 1024) [pid 5852] mount("/dev/loop0", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 5849] <... mount resumed>) = 0 [pid 5853] <... mount resumed>) = 0 [pid 5849] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5853] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5849] <... openat resumed>) = 3 [ 80.470536][ T5852] NILFS (loop0): broken superblock, retrying with spare superblock (blocksize = 1024) [ 80.474262][ T5857] NILFS (loop1): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 80.496637][ T5856] NILFS (loop4): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 80.501223][ T5838] udevd[5838]: incorrect nilfs2 checksum on /dev/loop4 [pid 5853] <... openat resumed>) = 3 [pid 5849] chdir("./file2" [pid 5853] chdir("./file2" [pid 5849] <... chdir resumed>) = 0 [pid 5849] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5853] <... chdir resumed>) = 0 [pid 5849] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5853] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5849] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5853] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5849] <... futex resumed>) = 1 [pid 5853] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5849] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5853] <... futex resumed>) = 1 [pid 5846] <... futex resumed>) = 0 [pid 5853] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5846] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5853] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5846] <... futex resumed>) = 0 [pid 5853] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 5846] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5853] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 5853] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5846] <... futex resumed>) = 0 [pid 5853] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5846] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5853] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5846] <... futex resumed>) = 0 [pid 5853] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 5846] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5853] <... openat resumed>) = 4 [pid 5853] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5846] <... futex resumed>) = 0 [pid 5853] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5846] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5853] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5846] <... futex resumed>) = 0 [pid 5853] read(-1, [pid 5846] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5853] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 5853] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5846] <... futex resumed>) = 0 [pid 5853] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5846] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5853] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5846] <... futex resumed>) = 0 [pid 5853] memfd_create("syzkaller", 0 [pid 5846] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5853] <... memfd_create resumed>) = 5 [pid 5853] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 [pid 5844] <... futex resumed>) = 0 [pid 5853] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5844] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5853] <... write resumed>) = 524288 [pid 5849] <... futex resumed>) = 0 [pid 5844] <... futex resumed>) = 1 [pid 5849] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 5844] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5851] <... mount resumed>) = 0 [pid 5851] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5849] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 5849] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5844] <... futex resumed>) = 0 [pid 5849] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5851] <... openat resumed>) = 3 [pid 5849] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5844] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5851] chdir("./file2") = 0 [pid 5849] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 5844] <... futex resumed>) = 0 [ 80.540113][ T5858] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 80.553855][ T5859] NILFS (loop2): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 5851] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5853] munmap(0x7f0d62800000, 138412032 [pid 5852] <... mount resumed>) = 0 [pid 5851] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5850] <... mount resumed>) = 0 [pid 5849] <... openat resumed>) = 4 [pid 5844] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5853] <... munmap resumed>) = 0 [pid 5852] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5851] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5850] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5849] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5844] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5853] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5852] <... openat resumed>) = 3 [pid 5851] <... futex resumed>) = 1 [pid 5850] <... openat resumed>) = 3 [pid 5849] <... futex resumed>) = 0 [pid 5847] <... futex resumed>) = 0 [pid 5844] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5853] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5852] chdir("./file2" [pid 5851] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5850] chdir("./file2" [pid 5849] read(-1, [pid 5847] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5844] <... futex resumed>) = 0 [pid 5853] close(5 [pid 5852] <... chdir resumed>) = 0 [pid 5851] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5850] <... chdir resumed>) = 0 [pid 5849] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 5847] <... futex resumed>) = 0 [pid 5844] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5853] <... close resumed>) = 0 [pid 5852] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5851] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 5850] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5849] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5847] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5844] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5853] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5852] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5851] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 5850] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5849] <... futex resumed>) = 0 [pid 5844] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5853] <... futex resumed>) = 1 [pid 5852] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5851] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5850] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5849] memfd_create("syzkaller", 0 [pid 5846] <... futex resumed>) = 0 [pid 5844] <... futex resumed>) = 0 [pid 5853] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5851] <... futex resumed>) = 1 [pid 5849] <... memfd_create resumed>) = 5 [pid 5847] <... futex resumed>) = 0 [pid 5844] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5853] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5852] <... futex resumed>) = 1 [pid 5851] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5850] <... futex resumed>) = 1 [pid 5849] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5848] <... futex resumed>) = 0 [pid 5847] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5846] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5845] <... futex resumed>) = 0 [ 80.590728][ T5838] udevd[5838]: incorrect nilfs2 checksum on /dev/loop3 [ 80.599739][ T5860] NILFS (loop3): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 5853] fsync(-1 [pid 5852] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5851] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5850] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5849] <... mmap resumed>) = 0x7f0d62800000 [pid 5848] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5847] <... futex resumed>) = 0 [pid 5846] <... futex resumed>) = 0 [pid 5845] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5853] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 5852] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5851] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 5850] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5848] <... futex resumed>) = 0 [pid 5847] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5846] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5845] <... futex resumed>) = 0 [pid 5853] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5852] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 5851] <... openat resumed>) = 4 [pid 5846] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5853] <... futex resumed>) = 0 [pid 5852] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 5851] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5850] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 5848] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5846] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5845] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5853] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5852] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5851] <... futex resumed>) = 1 [pid 5850] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 5848] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5847] <... futex resumed>) = 0 [pid 5846] <... futex resumed>) = 0 [pid 5852] <... futex resumed>) = 0 [pid 5850] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5848] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5846] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5853] <... openat resumed>) = 5 [pid 5852] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 5851] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5850] <... futex resumed>) = 1 [pid 5848] <... futex resumed>) = 0 [pid 5847] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5845] <... futex resumed>) = 0 [pid 5849] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5853] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5852] <... openat resumed>) = 4 [pid 5851] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5850] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5848] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5847] <... futex resumed>) = 0 [pid 5845] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5852] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5851] read(-1, [pid 5850] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5848] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5847] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5845] <... futex resumed>) = 0 [pid 5852] <... futex resumed>) = 0 [pid 5851] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 5850] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 5848] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5845] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5852] read(-1, [pid 5851] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5853] <... futex resumed>) = 1 [pid 5852] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 5851] <... futex resumed>) = 1 [pid 5850] <... openat resumed>) = 4 [pid 5849] <... write resumed>) = 524288 [pid 5848] <... futex resumed>) = 0 [pid 5847] <... futex resumed>) = 0 [pid 5846] <... futex resumed>) = 0 [pid 5853] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5852] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5851] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5850] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5849] munmap(0x7f0d62800000, 138412032 [pid 5848] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5847] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5846] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5853] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5852] <... futex resumed>) = 0 [pid 5851] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5850] <... futex resumed>) = 1 [pid 5849] <... munmap resumed>) = 0 [pid 5848] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5847] <... futex resumed>) = 0 [pid 5846] <... futex resumed>) = 0 [pid 5845] <... futex resumed>) = 0 [pid 5853] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 5852] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5851] memfd_create("syzkaller", 0 [pid 5850] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5848] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5847] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5846] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5845] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5852] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5851] <... memfd_create resumed>) = 5 [pid 5850] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5849] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5848] <... futex resumed>) = 0 [pid 5845] <... futex resumed>) = 0 [pid 5852] memfd_create("syzkaller", 0 [pid 5851] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5850] read(-1, [pid 5848] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5845] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5852] <... memfd_create resumed>) = 5 [pid 5851] <... mmap resumed>) = 0x7f0d62800000 [pid 5850] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 5852] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5850] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5849] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5850] <... futex resumed>) = 1 [pid 5845] <... futex resumed>) = 0 [pid 5850] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5845] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5850] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5845] <... futex resumed>) = 0 [pid 5850] memfd_create("syzkaller", 0 [pid 5849] close(5 [pid 5845] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5852] <... mmap resumed>) = 0x7f0d62800000 [pid 5850] <... memfd_create resumed>) = 5 [pid 5851] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5850] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5849] <... close resumed>) = 0 [pid 5850] <... mmap resumed>) = 0x7f0d62800000 [pid 5852] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5849] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5844] <... futex resumed>) = 0 [pid 5849] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5844] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5849] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5851] <... write resumed>) = 524288 [pid 5849] fsync(-1 [pid 5844] <... futex resumed>) = 0 [pid 5844] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5850] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5849] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 5853] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 5851] munmap(0x7f0d62800000, 138412032 [pid 5850] <... write resumed>) = 524288 [pid 5849] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5853] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5852] <... write resumed>) = 524288 [pid 5851] <... munmap resumed>) = 0 [pid 5850] munmap(0x7f0d62800000, 138412032 [pid 5849] <... futex resumed>) = 1 [pid 5844] <... futex resumed>) = 0 [pid 5853] <... futex resumed>) = 1 [pid 5852] munmap(0x7f0d62800000, 138412032 [pid 5851] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5849] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5846] <... futex resumed>) = 0 [pid 5844] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5853] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5852] <... munmap resumed>) = 0 [pid 5850] <... munmap resumed>) = 0 [pid 5851] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5849] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5846] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5844] <... futex resumed>) = 0 [pid 5853] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5852] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5851] close(5 [pid 5850] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5849] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5846] <... futex resumed>) = 0 [pid 5844] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5853] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 5852] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5846] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5852] close(5) = 0 [pid 5852] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5853] <... openat resumed>) = 6 [pid 5851] <... close resumed>) = 0 [pid 5850] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5849] <... openat resumed>) = 5 [pid 5852] <... futex resumed>) = 1 [pid 5848] <... futex resumed>) = 0 [pid 5853] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5852] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5851] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5850] close(5 [pid 5849] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5848] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5853] <... futex resumed>) = 1 [pid 5852] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5851] <... futex resumed>) = 1 [pid 5849] <... futex resumed>) = 1 [pid 5848] <... futex resumed>) = 0 [pid 5847] <... futex resumed>) = 0 [pid 5846] <... futex resumed>) = 0 [pid 5844] <... futex resumed>) = 0 [pid 5853] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5852] fsync(-1 [pid 5851] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5849] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5848] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5847] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5846] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5844] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5853] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5852] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 5851] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5849] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5847] <... futex resumed>) = 0 [pid 5846] <... futex resumed>) = 0 [pid 5844] <... futex resumed>) = 0 [pid 5853] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 5852] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5851] fsync(-1 [ 80.712824][ T5856] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5849] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 5847] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5852] <... futex resumed>) = 1 [pid 5851] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 5850] <... close resumed>) = 0 [pid 5849] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 5848] <... futex resumed>) = 0 [pid 5846] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5844] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5852] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5851] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5850] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5849] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5848] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5844] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5852] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5851] <... futex resumed>) = 1 [pid 5850] <... futex resumed>) = 1 [pid 5849] <... futex resumed>) = 0 [pid 5847] <... futex resumed>) = 0 [pid 5845] <... futex resumed>) = 0 [pid 5844] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5852] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5851] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5850] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5849] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 5848] <... futex resumed>) = 0 [pid 5847] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5845] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5844] <... futex resumed>) = 0 [pid 5851] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5850] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5848] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5847] <... futex resumed>) = 0 [pid 5844] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5852] <... openat resumed>) = 5 [pid 5851] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5847] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5852] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5845] <... futex resumed>) = 0 [pid 5850] fsync(-1 [pid 5851] <... openat resumed>) = 5 [pid 5849] <... openat resumed>) = 6 [pid 5845] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5852] <... futex resumed>) = 1 [pid 5850] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 5849] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5848] <... futex resumed>) = 0 [pid 5852] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5851] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5850] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5849] <... futex resumed>) = 1 [pid 5848] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5844] <... futex resumed>) = 0 [pid 5845] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5852] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5851] <... futex resumed>) = 1 [pid 5850] <... futex resumed>) = 0 [pid 5849] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5848] <... futex resumed>) = 0 [pid 5847] <... futex resumed>) = 0 [pid 5845] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5844] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5852] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 5851] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5850] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5849] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5848] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5847] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5845] <... futex resumed>) = 0 [pid 5844] <... futex resumed>) = 0 [pid 5851] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5849] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 5847] <... futex resumed>) = 0 [pid 5845] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5844] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5851] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 5850] <... openat resumed>) = 5 [pid 5847] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5850] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5845] <... futex resumed>) = 0 [pid 5845] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [ 80.764035][ T5857] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 80.802637][ T5859] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5850] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 5845] <... futex resumed>) = 0 [pid 5845] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5846] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5851] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 5848] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5848] futex(0x7f0d6aef46dc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5852] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 5851] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5847] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5848] <... futex resumed>) = 0 [pid 5850] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 5850] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5852] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5848] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5851] <... futex resumed>) = 0 [pid 5847] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5852] <... futex resumed>) = 0 [pid 5851] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 5848] <... mmap resumed>) = 0x7f0d6adde000 [pid 5847] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5850] <... futex resumed>) = 1 [pid 5852] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5851] <... openat resumed>) = 6 [pid 5848] mprotect(0x7f0d6addf000, 131072, PROT_READ|PROT_WRITE [pid 5845] <... futex resumed>) = 0 [pid 5844] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5851] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5850] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5848] <... mprotect resumed>) = 0 [pid 5845] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5851] <... futex resumed>) = 1 [pid 5850] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5848] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5847] <... futex resumed>) = 0 [pid 5851] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5848] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5847] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5845] <... futex resumed>) = 0 [pid 5851] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5850] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 5848] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6adfe990, parent_tid=0x7f0d6adfe990, exit_signal=0, stack=0x7f0d6adde000, stack_size=0x20300, tls=0x7f0d6adfe6c0} [pid 5847] <... futex resumed>) = 0 [pid 5851] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 5845] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5862 attached [pid 5850] <... openat resumed>) = 6 [pid 5847] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5862] rseq(0x7f0d6adfefe0, 0x20, 0, 0x53053053 [pid 5848] <... clone3 resumed> => {parent_tid=[4]}, 88) = 4 [pid 5862] <... rseq resumed>) = 0 [pid 5848] rt_sigprocmask(SIG_SETMASK, [], [pid 5862] set_robust_list(0x7f0d6adfe9a0, 24 [pid 5848] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5862] <... set_robust_list resumed>) = 0 [pid 5848] futex(0x7f0d6aef46d8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5862] rt_sigprocmask(SIG_SETMASK, [], [pid 5848] <... futex resumed>) = 0 [pid 5862] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5848] futex(0x7f0d6aef46dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5862] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 5850] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5845] <... futex resumed>) = 0 [pid 5850] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5845] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5850] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5845] <... futex resumed>) = 0 [ 80.817786][ T5858] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 80.831811][ T5860] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5850] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 5845] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5862] <... openat resumed>) = 6 [pid 5862] futex(0x7f0d6aef46dc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5848] <... futex resumed>) = 0 [pid 5862] futex(0x7f0d6aef46d8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5848] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5852] <... futex resumed>) = 0 [pid 5848] <... futex resumed>) = 1 [pid 5852] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 5848] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5847] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5845] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5848] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5853] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 5853] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5853] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5846] close(3) = 0 [pid 5846] close(4) = 0 [pid 5846] close(5) = 0 [pid 5846] close(6) = 0 [pid 5846] close(7) = -1 EBADF (Bad file descriptor) [pid 5846] close(8) = -1 EBADF (Bad file descriptor) [pid 5846] close(9) = -1 EBADF (Bad file descriptor) [pid 5846] close(10) = -1 EBADF (Bad file descriptor) [pid 5846] close(11) = -1 EBADF (Bad file descriptor) [pid 5846] close(12) = -1 EBADF (Bad file descriptor) [pid 5846] close(13) = -1 EBADF (Bad file descriptor) [pid 5846] close(14) = -1 EBADF (Bad file descriptor) [pid 5846] close(15) = -1 EBADF (Bad file descriptor) [pid 5846] close(16) = -1 EBADF (Bad file descriptor) [pid 5846] close(17) = -1 EBADF (Bad file descriptor) [pid 5846] close(18) = -1 EBADF (Bad file descriptor) [pid 5846] close(19) = -1 EBADF (Bad file descriptor) [pid 5846] close(20) = -1 EBADF (Bad file descriptor) [pid 5846] close(21) = -1 EBADF (Bad file descriptor) [pid 5846] close(22) = -1 EBADF (Bad file descriptor) [pid 5846] close(23) = -1 EBADF (Bad file descriptor) [pid 5846] close(24) = -1 EBADF (Bad file descriptor) [pid 5846] close(25) = -1 EBADF (Bad file descriptor) [pid 5846] close(26) = -1 EBADF (Bad file descriptor) [ 81.009865][ T5856] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5846] close(27) = -1 EBADF (Bad file descriptor) [pid 5846] close(28) = -1 EBADF (Bad file descriptor) [pid 5846] close(29) = -1 EBADF (Bad file descriptor) [pid 5846] exit_group(0 [pid 5853] <... futex resumed>) = ? [pid 5846] <... exit_group resumed>) = ? [pid 5853] +++ exited with 0 +++ [pid 5846] +++ exited with 0 +++ [pid 5837] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=2, si_uid=0, si_status=0, si_utime=0, si_stime=25 /* 0.25 s */} --- [pid 5837] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5837] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5837] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 5837] getdents64(3, 0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 5837] umount2("./0/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5837] newfstatat(AT_FDCWD, "./0/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [ 81.073783][ T5853] syz-executor138 (5853) used greatest stack depth: 18488 bytes left [pid 5837] unlink("./0/cgroup") = 0 [pid 5837] umount2("./0/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5837] newfstatat(AT_FDCWD, "./0/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5837] unlink("./0/cgroup.cpu") = 0 [pid 5837] umount2("./0/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5837] newfstatat(AT_FDCWD, "./0/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5837] unlink("./0/cgroup.net") = 0 [pid 5837] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5837] newfstatat(AT_FDCWD, "./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5837] unlink("./0/binderfs") = 0 [ 81.160038][ T5857] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 81.193454][ T5856] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5837] umount2("./0/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5849] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 5849] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5849] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5844] close(3) = 0 [pid 5844] close(4) = 0 [pid 5844] close(5 [pid 5850] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 5844] <... close resumed>) = 0 [pid 5850] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5850] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5844] close(6) = 0 [pid 5845] close(3 [pid 5844] close(7 [pid 5845] <... close resumed>) = 0 [pid 5844] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5845] close(4 [pid 5844] close(8) = -1 EBADF (Bad file descriptor) [pid 5844] close(9 [pid 5845] <... close resumed>) = 0 [pid 5844] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5851] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 5844] close(10) = -1 EBADF (Bad file descriptor) [pid 5851] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5845] close(5 [pid 5844] close(11 [pid 5851] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5847] close(3 [pid 5845] <... close resumed>) = 0 [pid 5844] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5847] <... close resumed>) = 0 [pid 5844] close(12 [pid 5847] close(4 [pid 5845] close(6 [pid 5847] <... close resumed>) = 0 [pid 5844] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5847] close(5 [pid 5845] <... close resumed>) = 0 [pid 5847] <... close resumed>) = 0 [pid 5845] close(7 [pid 5844] close(13 [pid 5847] close(6 [pid 5845] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5844] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5847] <... close resumed>) = 0 [pid 5845] close(8 [pid 5844] close(14 [pid 5847] close(7 [pid 5845] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5844] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5847] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5845] close(9 [pid 5844] close(15 [pid 5847] close(8 [pid 5845] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5844] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5847] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5845] close(10 [pid 5844] close(16 [pid 5847] close(9 [pid 5845] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5844] <... close resumed>) = -1 EBADF (Bad file descriptor) [ 81.200343][ T5859] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 81.213807][ T5860] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 81.233440][ T5856] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5847] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5845] close(11 [pid 5844] close(17 [pid 5852] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 5847] close(10 [pid 5845] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5844] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5852] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5847] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5845] close(12 [pid 5844] close(18 [pid 5852] <... futex resumed>) = 0 [pid 5848] close(3 [pid 5847] close(11 [pid 5845] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5844] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5852] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5848] <... close resumed>) = 0 [pid 5847] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5845] close(13 [pid 5844] close(19 [pid 5848] close(4 [pid 5847] close(12 [pid 5845] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5844] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5848] <... close resumed>) = 0 [pid 5847] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5845] close(14 [pid 5844] close(20 [pid 5848] close(5 [pid 5847] close(13 [pid 5845] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5844] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5848] <... close resumed>) = 0 [pid 5847] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5845] close(15 [pid 5844] close(21 [pid 5848] close(6 [pid 5847] close(14 [pid 5845] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5844] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5848] <... close resumed>) = 0 [pid 5847] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5845] close(16 [pid 5844] close(22 [pid 5848] close(7 [pid 5847] close(15 [pid 5845] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5844] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5848] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5847] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5845] close(17 [pid 5844] close(23 [pid 5848] close(8 [pid 5847] close(16 [pid 5845] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5844] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5848] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5847] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5845] close(18 [pid 5844] close(24 [pid 5848] close(9 [pid 5847] close(17 [pid 5845] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5844] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5848] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5847] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5845] close(19 [ 81.261486][ T5856] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 81.264039][ T5858] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 81.273785][ T5856] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 81.297535][ T5856] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5844] close(25 [pid 5848] close(10 [pid 5847] close(18 [pid 5845] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5844] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5848] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5847] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5845] close(20 [pid 5844] close(26 [pid 5848] close(11 [pid 5847] close(19 [pid 5845] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5844] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5848] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5847] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5845] close(21 [pid 5844] close(27 [pid 5848] close(12 [pid 5847] close(20 [pid 5845] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5844] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5848] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5847] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5845] close(22 [pid 5844] close(28 [pid 5848] close(13 [pid 5847] close(21 [pid 5845] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5844] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5848] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5847] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5845] close(23 [pid 5844] close(29 [pid 5848] close(14 [pid 5847] close(22 [pid 5845] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5844] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5848] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5847] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5845] close(24 [pid 5844] exit_group(0 [pid 5848] close(15 [pid 5847] close(23 [pid 5845] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5844] <... exit_group resumed>) = ? [pid 5848] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5847] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5845] close(25 [pid 5848] close(16 [pid 5847] close(24 [pid 5845] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5849] <... futex resumed>) = ? [pid 5848] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5847] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5845] close(26 [pid 5848] close(17 [pid 5847] close(25 [pid 5845] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5848] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5847] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5845] close(27 [pid 5848] close(18 [pid 5847] close(26 [pid 5845] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5848] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5847] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5845] close(28 [pid 5848] close(19 [pid 5847] close(27 [pid 5845] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5848] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5847] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5845] close(29 [pid 5848] close(20 [pid 5847] close(28 [pid 5845] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5848] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5847] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5845] exit_group(0 [pid 5848] close(21 [pid 5847] close(29 [pid 5845] <... exit_group resumed>) = ? [pid 5848] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5847] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5848] close(22 [pid 5847] exit_group(0 [pid 5851] <... futex resumed>) = ? [pid 5848] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5847] <... exit_group resumed>) = ? [pid 5851] +++ exited with 0 +++ [pid 5848] close(23 [pid 5847] +++ exited with 0 +++ [pid 5848] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=2, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 5848] close(24 [pid 5849] +++ exited with 0 +++ [pid 5848] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5844] +++ exited with 0 +++ [pid 5848] close(25 [pid 5836] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5848] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5834] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=2, si_uid=0, si_status=0, si_utime=0, si_stime=25 /* 0.25 s */} --- [pid 5848] close(26 [pid 5836] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5834] restart_syscall(<... resuming interrupted clone ...> [pid 5848] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] <... openat resumed>) = 3 [pid 5848] close(27 [pid 5836] newfstatat(3, "", [pid 5848] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 5848] close(28 [pid 5836] getdents64(3, [pid 5848] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5848] close(29) = -1 EBADF (Bad file descriptor) [pid 5836] <... getdents64 resumed>0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 5848] exit_group(0 [pid 5862] <... futex resumed>) = ? [pid 5852] <... futex resumed>) = ? [pid 5850] <... futex resumed>) = ? [pid 5848] <... exit_group resumed>) = ? [pid 5862] +++ exited with 0 +++ [pid 5852] +++ exited with 0 +++ [pid 5848] +++ exited with 0 +++ [pid 5834] <... restart_syscall resumed>) = 0 [pid 5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=2, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=19 /* 0.19 s */} --- [pid 5836] umount2("./0/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5834] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5836] newfstatat(AT_FDCWD, "./0/cgroup", [pid 5834] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5833] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5836] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [ 81.311292][ T5856] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 81.325841][ T5856] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 81.343010][ T5849] syz-executor138 (5849) used greatest stack depth: 17848 bytes left [pid 5834] <... openat resumed>) = 3 [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5836] unlink("./0/cgroup" [pid 5834] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 5834] getdents64(3, 0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 5836] <... unlink resumed>) = 0 [pid 5834] umount2("./0/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5833] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5850] +++ exited with 0 +++ [pid 5845] +++ exited with 0 +++ [pid 5836] umount2("./0/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5836] newfstatat(AT_FDCWD, "./0/cgroup.cpu", [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5833] <... openat resumed>) = 3 [pid 5836] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5835] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=2, si_uid=0, si_status=0, si_utime=0, si_stime=24 /* 0.24 s */} --- [pid 5834] newfstatat(AT_FDCWD, "./0/cgroup", [pid 5833] newfstatat(3, "", [pid 5836] unlink("./0/cgroup.cpu" [pid 5834] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 5836] <... unlink resumed>) = 0 [pid 5836] umount2("./0/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5834] unlink("./0/cgroup" [pid 5833] getdents64(3, [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5835] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5834] <... unlink resumed>) = 0 [pid 5836] newfstatat(AT_FDCWD, "./0/cgroup.net", [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5834] umount2("./0/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5833] <... getdents64 resumed>0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 5836] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5835] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5833] umount2("./0/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5836] unlink("./0/cgroup.net" [pid 5835] <... openat resumed>) = 3 [pid 5834] newfstatat(AT_FDCWD, "./0/cgroup.cpu", [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5836] <... unlink resumed>) = 0 [pid 5836] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5835] newfstatat(3, "", [pid 5834] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] newfstatat(AT_FDCWD, "./0/cgroup", [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 81.353780][ T5856] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 81.372252][ T5856] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 81.385035][ T5856] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 81.400372][ T5856] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5836] newfstatat(AT_FDCWD, "./0/binderfs", [pid 5833] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5836] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5836] unlink("./0/binderfs" [pid 5834] unlink("./0/cgroup.cpu" [pid 5836] <... unlink resumed>) = 0 [pid 5834] <... unlink resumed>) = 0 [pid 5833] unlink("./0/cgroup" [pid 5836] umount2("./0/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5834] umount2("./0/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5833] <... unlink resumed>) = 0 [pid 5835] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5833] umount2("./0/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5835] getdents64(3, [pid 5834] newfstatat(AT_FDCWD, "./0/cgroup.net", [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5835] <... getdents64 resumed>0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 5834] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5835] umount2("./0/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5834] unlink("./0/cgroup.net" [pid 5833] newfstatat(AT_FDCWD, "./0/cgroup.cpu", [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5834] <... unlink resumed>) = 0 [pid 5833] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5835] newfstatat(AT_FDCWD, "./0/cgroup", [pid 5834] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5835] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5833] unlink("./0/cgroup.cpu" [pid 5835] unlink("./0/cgroup" [pid 5834] newfstatat(AT_FDCWD, "./0/binderfs", [pid 5833] <... unlink resumed>) = 0 [pid 5835] <... unlink resumed>) = 0 [pid 5833] umount2("./0/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5834] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5834] unlink("./0/binderfs" [pid 5835] umount2("./0/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5834] <... unlink resumed>) = 0 [pid 5833] newfstatat(AT_FDCWD, "./0/cgroup.net", [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5834] umount2("./0/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5833] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5835] newfstatat(AT_FDCWD, "./0/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./0/cgroup.net" [pid 5835] unlink("./0/cgroup.cpu" [pid 5833] <... unlink resumed>) = 0 [pid 5835] <... unlink resumed>) = 0 [pid 5833] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5835] umount2("./0/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5835] newfstatat(AT_FDCWD, "./0/cgroup.net", [pid 5833] newfstatat(AT_FDCWD, "./0/binderfs", [pid 5835] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5835] unlink("./0/cgroup.net" [pid 5833] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./0/binderfs" [pid 5835] <... unlink resumed>) = 0 [pid 5833] <... unlink resumed>) = 0 [pid 5835] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [ 81.416885][ T5856] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 81.418626][ T5857] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 81.429084][ T5856] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 81.441072][ T5857] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5833] umount2("./0/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 81.451417][ T5859] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 81.453249][ T5856] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 81.466316][ T5857] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 81.474568][ T5859] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5835] newfstatat(AT_FDCWD, "./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5835] unlink("./0/binderfs") = 0 [ 81.507990][ T5857] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 81.508946][ T5858] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 81.529887][ T5857] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 81.542046][ T5856] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 81.542398][ T5857] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 81.555768][ T5858] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 81.565383][ T5857] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 81.575279][ T5859] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 81.586122][ T5857] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 81.598295][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 81.608251][ T5857] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 81.619178][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 81.631143][ T5857] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 81.640754][ T5859] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 81.651821][ T5860] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 81.662458][ T5857] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 81.673418][ T5860] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 81.695350][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 81.696323][ T5857] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 81.707903][ T5858] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 81.716801][ T5860] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 81.738666][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 81.738749][ T5859] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 81.761114][ T5857] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 81.761313][ T5837] NILFS (loop4): disposed unprocessed dirty file(s) when stopping log writer [ 81.774745][ T5858] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 81.784894][ T5860] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 81.809926][ T5859] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 81.810521][ T5857] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 81.834705][ T5860] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 81.835106][ T5858] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 81.846724][ T5859] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 81.858871][ T5857] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 81.882174][ T5858] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 81.893956][ T5860] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 81.894251][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 81.907716][ T5858] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 81.917794][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 81.942915][ T5859] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 81.943363][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5835] umount2("./0/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5837] <... umount2 resumed>) = 0 [ 81.956291][ T5860] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 81.967487][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 81.980939][ T5858] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 81.989348][ T5834] NILFS (loop1): disposed unprocessed dirty file(s) when stopping log writer [pid 5837] umount2("./0/file2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 82.000827][ T5858] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 82.021381][ T5858] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 82.029610][ T5859] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 82.034127][ T5860] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 82.043466][ T5859] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5837] newfstatat(AT_FDCWD, "./0/file2", [pid 5834] <... umount2 resumed>) = 0 [ 82.065891][ T5858] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 82.076985][ T5858] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 82.078755][ T5859] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 82.087879][ T5858] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 82.099864][ T5859] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5837] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5834] umount2("./0/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5837] umount2("./0/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 82.110464][ T5860] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 82.121409][ T5859] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 82.131563][ T5858] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 82.143316][ T5859] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5834] newfstatat(AT_FDCWD, "./0/file2", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5834] umount2("./0/file2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5834] openat(AT_FDCWD, "./0/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5834] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 5834] getdents64(4, 0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 5834] getdents64(4, 0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 5834] close(4) = 0 [pid 5834] rmdir("./0/file2") = 0 [pid 5834] getdents64(3, 0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 5834] close(3) = 0 [pid 5834] rmdir("./0") = 0 [pid 5834] mkdir("./1", 0777) = 0 [pid 5834] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5834] ioctl(3, LOOP_CLR_FD) = 0 [pid 5834] close(3 [pid 5837] openat(AT_FDCWD, "./0/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5834] <... close resumed>) = 0 [ 82.154258][ T5860] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 82.176647][ T5858] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 82.178865][ T5859] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 82.187417][ T5860] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 82.201992][ T5836] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 82.219612][ T5836] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 82.223513][ T5833] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 82.230329][ T5836] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 82.241557][ T5833] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5834] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDexecuting program ./strace-static-x86_64: Process 5863 attached [pid 5837] <... openat resumed>) = 4 [pid 5863] set_robust_list(0x55555fa3c6a0, 24 [pid 5834] <... clone resumed>, child_tidptr=0x55555fa3c690) = 4 [pid 5863] <... set_robust_list resumed>) = 0 [pid 5863] chdir("./1") = 0 [pid 5863] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5863] setpgid(0, 0) = 0 [pid 5863] symlink("/syzcgroup/unified/syz1", "./cgroup") = 0 [pid 5863] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu") = 0 [pid 5863] symlink("/syzcgroup/net/syz1", "./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", 18) = 18 [pid 5863] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5863] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, NULL, 8) = 0 [pid 5863] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5863] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0d6adff000 [pid 5863] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5863] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5863] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0}./strace-static-x86_64: Process 5864 attached [pid 5864] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 5863] <... clone3 resumed> => {parent_tid=[5]}, 88) = 5 [pid 5864] <... rseq resumed>) = 0 [pid 5863] rt_sigprocmask(SIG_SETMASK, [], [pid 5864] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 5863] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5864] <... set_robust_list resumed>) = 0 [pid 5863] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5864] rt_sigprocmask(SIG_SETMASK, [], [pid 5863] <... futex resumed>) = 0 [pid 5864] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5863] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5864] memfd_create("syzkaller", 0) = 3 [pid 5864] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 [pid 5864] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576 [pid 5837] newfstatat(4, "", [pid 5864] munmap(0x7f0d62800000, 138412032) = 0 [pid 5864] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5864] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5837] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 5864] close(3) = 0 [pid 5864] close(4) = 0 [pid 5864] mkdir("./file2", 0777 [pid 5837] getdents64(4, [pid 5864] <... mkdir resumed>) = 0 [ 82.262882][ T5836] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 82.286201][ T5864] loop1: detected capacity change from 0 to 2048 [ 82.295830][ T5836] NILFS (loop2): disposed unprocessed dirty file(s) when stopping log writer [ 82.307271][ T5860] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5864] mount("/dev/loop1", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 5837] <... getdents64 resumed>0x55555fa45770 /* 2 entries */, 32768) = 48 [ 82.310673][ T5833] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 82.330645][ T5864] NILFS (loop1): broken superblock, retrying with spare superblock (blocksize = 1024) [ 82.341227][ T5860] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 82.351493][ T5833] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5837] getdents64(4, 0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 5837] close(4 [pid 5864] <... mount resumed>) = 0 [pid 5864] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY) = 3 [pid 5864] chdir("./file2") = 0 [pid 5864] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5864] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5863] <... futex resumed>) = 0 [pid 5864] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5863] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5864] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5863] <... futex resumed>) = 0 [pid 5864] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 5863] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5864] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 5864] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5863] <... futex resumed>) = 0 [pid 5864] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5863] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5864] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5863] <... futex resumed>) = 0 [pid 5864] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 5863] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5864] <... openat resumed>) = 4 [pid 5864] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5863] <... futex resumed>) = 0 [pid 5864] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5863] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5864] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5863] <... futex resumed>) = 0 [pid 5864] read(-1, [pid 5863] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5864] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 5864] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5863] <... futex resumed>) = 0 [pid 5864] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5863] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5864] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5863] <... futex resumed>) = 0 [pid 5864] memfd_create("syzkaller", 0 [pid 5863] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5864] <... memfd_create resumed>) = 5 [pid 5864] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 [pid 5864] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5836] <... umount2 resumed>) = 0 [pid 5837] <... close resumed>) = 0 [ 82.353385][ T5860] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 82.364496][ T5833] NILFS (loop0): disposed unprocessed dirty file(s) when stopping log writer [ 82.376510][ T5865] NILFS (loop1): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 82.400954][ T5860] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5864] <... write resumed>) = 524288 [pid 5837] rmdir("./0/file2" [pid 5836] umount2("./0/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5864] munmap(0x7f0d62800000, 138412032) = 0 [pid 5864] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5864] close(5) = 0 [pid 5864] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5863] <... futex resumed>) = 0 [pid 5864] fsync(-1 [pid 5863] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5864] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 5863] <... futex resumed>) = 0 [pid 5864] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5863] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5864] <... futex resumed>) = 0 [pid 5863] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5864] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5863] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5864] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5863] <... futex resumed>) = 0 [pid 5864] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5863] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5837] <... rmdir resumed>) = 0 [pid 5864] <... openat resumed>) = 5 [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5864] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5863] <... futex resumed>) = 0 [pid 5864] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 5863] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5863] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5836] newfstatat(AT_FDCWD, "./0/file2", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5836] umount2("./0/file2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5836] openat(AT_FDCWD, "./0/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5837] getdents64(3, [pid 5836] <... openat resumed>) = 4 [pid 5837] <... getdents64 resumed>0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 5836] newfstatat(4, "", [pid 5837] close(3 [pid 5836] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 5837] <... close resumed>) = 0 [pid 5836] getdents64(4, [pid 5837] rmdir("./0" [pid 5836] <... getdents64 resumed>0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 5837] <... rmdir resumed>) = 0 [pid 5836] getdents64(4, [pid 5837] mkdir("./1", 0777 [pid 5836] <... getdents64 resumed>0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 5837] <... mkdir resumed>) = 0 [pid 5836] close(4 [pid 5837] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5836] <... close resumed>) = 0 [pid 5837] <... openat resumed>) = 3 [pid 5836] rmdir("./0/file2") = 0 [pid 5836] getdents64(3, [pid 5837] ioctl(3, LOOP_CLR_FD [pid 5836] <... getdents64 resumed>0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 5837] <... ioctl resumed>) = 0 [ 82.415269][ T5835] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 82.427815][ T5835] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 82.439150][ T5835] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 82.452026][ T5835] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5836] close(3 [pid 5837] close(3 [pid 5836] <... close resumed>) = 0 [pid 5837] <... close resumed>) = 0 [pid 5836] rmdir("./0") = 0 [pid 5836] mkdir("./1", 0777) = 0 [pid 5836] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5836] ioctl(3, LOOP_CLR_FD) = 0 [pid 5836] close(3 [pid 5863] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5863] futex(0x7f0d6aef46dc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5863] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0d6adde000 [pid 5863] mprotect(0x7f0d6addf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5863] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5863] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6adfe990, parent_tid=0x7f0d6adfe990, exit_signal=0, stack=0x7f0d6adde000, stack_size=0x20300, tls=0x7f0d6adfe6c0}./strace-static-x86_64: Process 5866 attached [pid 5866] rseq(0x7f0d6adfefe0, 0x20, 0, 0x53053053 [pid 5863] <... clone3 resumed> => {parent_tid=[6]}, 88) = 6 [pid 5866] <... rseq resumed>) = 0 [pid 5863] rt_sigprocmask(SIG_SETMASK, [], [pid 5866] set_robust_list(0x7f0d6adfe9a0, 24 [pid 5863] <... rt_sigprocmask resumed>NULL, 8) = 0 [ 82.465506][ T5835] NILFS (loop3): disposed unprocessed dirty file(s) when stopping log writer [pid 5866] <... set_robust_list resumed>) = 0 [pid 5864] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 5863] futex(0x7f0d6aef46d8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5835] <... umount2 resumed>) = 0 [pid 5866] rt_sigprocmask(SIG_SETMASK, [], [pid 5864] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5863] <... futex resumed>) = 0 [pid 5837] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5836] <... close resumed>) = 0 [pid 5835] umount2("./0/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5866] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5864] <... futex resumed>) = 0 [pid 5863] futex(0x7f0d6aef46dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5835] newfstatat(AT_FDCWD, "./0/file2", [pid 5866] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 5864] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5835] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 ./strace-static-x86_64: Process 5867 attached [pid 5866] <... openat resumed>) = 6 [pid 5835] umount2("./0/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5837] <... clone resumed>, child_tidptr=0x55555fa3c690) = 4 [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5867] set_robust_list(0x55555fa3c6a0, 24 [pid 5866] futex(0x7f0d6aef46dc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5836] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5835] openat(AT_FDCWD, "./0/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 5868 attached [pid 5867] <... set_robust_list resumed>) = 0 [pid 5866] <... futex resumed>) = 1 [pid 5863] <... futex resumed>) = 0 [pid 5835] <... openat resumed>) = 4 [pid 5868] set_robust_list(0x55555fa3c6a0, 24 [pid 5866] futex(0x7f0d6aef46d8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5863] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5835] newfstatat(4, "", [pid 5868] <... set_robust_list resumed>) = 0 [pid 5867] chdir("./1" [pid 5864] <... futex resumed>) = 0 [pid 5863] <... futex resumed>) = 1 [pid 5836] <... clone resumed>, child_tidptr=0x55555fa3c690) = 4 [pid 5868] chdir("./1" [pid 5867] <... chdir resumed>) = 0 [pid 5864] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 5835] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 5833] <... umount2 resumed>) = 0 [pid 5868] <... chdir resumed>) = 0 [pid 5863] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5835] getdents64(4, [pid 5868] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5835] <... getdents64 resumed>0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 5868] <... prctl resumed>) = 0 [pid 5835] getdents64(4, [pid 5868] setpgid(0, 0 [pid 5835] <... getdents64 resumed>0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 5868] <... setpgid resumed>) = 0 [pid 5835] close(4 [pid 5868] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5835] <... close resumed>) = 0 [pid 5868] <... symlink resumed>) = 0 [pid 5835] rmdir("./0/file2" [pid 5868] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5835] <... rmdir resumed>) = 0 [pid 5868] <... symlink resumed>) = 0 [pid 5835] getdents64(3, [pid 5868] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5835] <... getdents64 resumed>0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 5868] <... symlink resumed>) = 0 [pid 5835] close(3 [pid 5868] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5835] <... close resumed>) = 0 [pid 5868] <... openat resumed>) = 3 [pid 5835] rmdir("./0" [pid 5868] write(3, "1000", 4 [pid 5835] <... rmdir resumed>) = 0 [pid 5868] <... write resumed>) = 4 [pid 5835] mkdir("./1", 0777 [pid 5868] close(3 [pid 5835] <... mkdir resumed>) = 0 [pid 5868] <... close resumed>) = 0 [pid 5835] openat(AT_FDCWD, "/dev/loop3", O_RDWRexecuting program [pid 5868] symlink("/dev/binderfs", "./binderfs" [pid 5867] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5835] <... openat resumed>) = 3 [pid 5868] <... symlink resumed>) = 0 [pid 5835] ioctl(3, LOOP_CLR_FD [pid 5868] write(1, "executing program\n", 18 [pid 5835] <... ioctl resumed>) = 0 [pid 5868] <... write resumed>) = 18 [ 82.513562][ T5865] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5835] close(3 [pid 5868] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5867] <... prctl resumed>) = 0 [pid 5835] <... close resumed>) = 0 [pid 5833] umount2("./0/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5868] <... futex resumed>) = 0 [pid 5835] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5868] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, [pid 5867] setpgid(0, 0 [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5869 attached [pid 5868] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5867] <... setpgid resumed>) = 0 [pid 5833] newfstatat(AT_FDCWD, "./0/file2", [pid 5868] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5835] <... clone resumed>, child_tidptr=0x55555fa3c690) = 4 [pid 5868] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5869] set_robust_list(0x55555fa3c6a0, 24 [pid 5868] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5867] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 5833] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5869] <... set_robust_list resumed>) = 0 [pid 5868] <... mmap resumed>) = 0x7f0d6adff000 [pid 5867] <... symlink resumed>) = 0 [pid 5833] umount2("./0/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5869] chdir("./1" [pid 5868] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE [pid 5867] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 5869] <... chdir resumed>) = 0 [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5869] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5868] <... mprotect resumed>) = 0 [pid 5867] <... symlink resumed>) = 0 [pid 5869] <... prctl resumed>) = 0 [pid 5833] openat(AT_FDCWD, "./0/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5869] setpgid(0, 0 [pid 5868] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5867] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 5833] <... openat resumed>) = 4 [pid 5869] <... setpgid resumed>) = 0 [pid 5868] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5867] <... symlink resumed>) = 0 [pid 5869] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5868] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0} [pid 5833] newfstatat(4, "", [pid 5869] <... symlink resumed>) = 0 [pid 5867] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5833] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 ./strace-static-x86_64: Process 5870 attached [pid 5869] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5867] <... openat resumed>) = 3 [pid 5870] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 5869] <... symlink resumed>) = 0 [pid 5868] <... clone3 resumed> => {parent_tid=[5]}, 88) = 5 [pid 5833] getdents64(4, [pid 5870] <... rseq resumed>) = 0 [pid 5869] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5868] rt_sigprocmask(SIG_SETMASK, [], [pid 5870] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 5869] <... symlink resumed>) = 0 [pid 5868] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5863] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5833] <... getdents64 resumed>0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 5869] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5867] write(3, "1000", 4 [pid 5870] <... set_robust_list resumed>) = 0 [pid 5869] <... openat resumed>) = 3 [pid 5868] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5833] getdents64(4, [pid 5870] rt_sigprocmask(SIG_SETMASK, [], [pid 5869] write(3, "1000", 4 [pid 5868] <... futex resumed>) = 0 [pid 5867] <... write resumed>) = 4 [pid 5870] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5869] <... write resumed>) = 4 [pid 5868] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5867] close(3 [pid 5833] <... getdents64 resumed>0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 5870] memfd_create("syzkaller", 0 [pid 5869] close(3 [pid 5867] <... close resumed>) = 0 [pid 5833] close(4 [pid 5870] <... memfd_create resumed>) = 3 [pid 5869] <... close resumed>) = 0 [pid 5867] symlink("/dev/binderfs", "./binderfs" [pid 5833] <... close resumed>) = 0 [pid 5870] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5869] symlink("/dev/binderfs", "./binderfs" [pid 5867] <... symlink resumed>) = 0 [pid 5833] rmdir("./0/file2" [pid 5870] <... mmap resumed>) = 0x7f0d62800000 [pid 5869] <... symlink resumed>) = 0 executing program [pid 5867] write(1, "executing program\n", 18executing program [pid 5833] <... rmdir resumed>) = 0 [pid 5869] write(1, "executing program\n", 18 [pid 5867] <... write resumed>) = 18 [pid 5833] getdents64(3, [pid 5870] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5869] <... write resumed>) = 18 [pid 5867] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5833] <... getdents64 resumed>0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 5869] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5833] close(3 [pid 5867] <... futex resumed>) = 0 [pid 5869] <... futex resumed>) = 0 [pid 5867] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, [pid 5869] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, [pid 5833] <... close resumed>) = 0 [pid 5869] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5867] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5833] rmdir("./0" [pid 5869] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5867] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5833] <... rmdir resumed>) = 0 [pid 5869] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5867] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5867] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5833] mkdir("./1", 0777 [pid 5869] <... mmap resumed>) = 0x7f0d6adff000 [pid 5867] <... mmap resumed>) = 0x7f0d6adff000 [pid 5833] <... mkdir resumed>) = 0 [pid 5869] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE [pid 5867] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE [pid 5870] <... write resumed>) = 1048576 [pid 5869] <... mprotect resumed>) = 0 [pid 5867] <... mprotect resumed>) = 0 [pid 5833] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5870] munmap(0x7f0d62800000, 138412032 [pid 5869] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5870] <... munmap resumed>) = 0 [pid 5869] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5867] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5833] <... openat resumed>) = 3 [pid 5870] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5869] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0} [pid 5867] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5870] <... openat resumed>) = 4 [pid 5833] ioctl(3, LOOP_CLR_FD [pid 5870] ioctl(4, LOOP_SET_FD, 3 [pid 5867] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0}./strace-static-x86_64: Process 5871 attached [pid 5833] <... ioctl resumed>) = 0 ./strace-static-x86_64: Process 5872 attached [pid 5871] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 5870] <... ioctl resumed>) = 0 [pid 5869] <... clone3 resumed> => {parent_tid=[5]}, 88) = 5 [pid 5833] close(3 [pid 5872] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 5871] <... rseq resumed>) = 0 [pid 5870] close(3 [pid 5869] rt_sigprocmask(SIG_SETMASK, [], [pid 5872] <... rseq resumed>) = 0 [pid 5871] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 5870] <... close resumed>) = 0 [pid 5869] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5872] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 5871] <... set_robust_list resumed>) = 0 [pid 5870] close(4 [pid 5869] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5872] <... set_robust_list resumed>) = 0 [pid 5871] rt_sigprocmask(SIG_SETMASK, [], [pid 5870] <... close resumed>) = 0 [pid 5869] <... futex resumed>) = 0 [pid 5872] rt_sigprocmask(SIG_SETMASK, [], [pid 5871] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5870] mkdir("./file2", 0777 [pid 5869] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5872] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5871] memfd_create("syzkaller", 0 [pid 5870] <... mkdir resumed>) = 0 [pid 5872] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5871] <... memfd_create resumed>) = 3 [pid 5870] mount("/dev/loop2", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 5871] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 [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"..., 1048576) = 1048576 [pid 5867] <... clone3 resumed> => {parent_tid=[5]}, 88) = 5 [pid 5833] <... close resumed>) = 0 [pid 5871] munmap(0x7f0d62800000, 138412032) = 0 [pid 5871] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5871] ioctl(4, LOOP_SET_FD, 3 [pid 5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5867] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [ 82.690739][ T5870] loop2: detected capacity change from 0 to 2048 [ 82.713919][ T5870] NILFS (loop2): broken superblock, retrying with spare superblock (blocksize = 1024) ./strace-static-x86_64: Process 5873 attached [pid 5867] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5872] <... futex resumed>) = 0 [pid 5867] <... futex resumed>) = 1 [pid 5833] <... clone resumed>, child_tidptr=0x55555fa3c690) = 5 [pid 5871] <... ioctl resumed>) = 0 [pid 5871] close(3) = 0 [pid 5871] close(4 [pid 5873] set_robust_list(0x55555fa3c6a0, 24) = 0 [pid 5873] chdir("./1" [pid 5871] <... close resumed>) = 0 [pid 5873] <... chdir resumed>) = 0 [pid 5872] memfd_create("syzkaller", 0 [pid 5867] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5872] <... memfd_create resumed>) = 3 [pid 5872] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 [pid 5873] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5871] mkdir("./file2", 0777 [pid 5873] setpgid(0, 0 [pid 5871] <... mkdir resumed>) = 0 [pid 5873] <... setpgid resumed>) = 0 [pid 5871] mount("/dev/loop3", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [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_CLOEXECexecuting program ) = 3 [pid 5872] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5873] write(3, "1000", 4) = 4 [pid 5873] close(3) = 0 [pid 5873] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5873] write(1, "executing program\n", 18) = 18 [pid 5873] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5873] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, NULL, 8) = 0 [pid 5873] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5873] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0d6adff000 [pid 5873] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE) = 0 [ 82.744206][ T5871] loop3: detected capacity change from 0 to 2048 [ 82.774132][ T5871] NILFS (loop3): broken superblock, retrying with spare superblock (blocksize = 1024) [pid 5873] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5873] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0}./strace-static-x86_64: Process 5875 attached => {parent_tid=[6]}, 88) = 6 [pid 5875] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 5873] rt_sigprocmask(SIG_SETMASK, [], [pid 5875] <... rseq resumed>) = 0 [pid 5873] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5875] set_robust_list(0x7f0d6ae1f9a0, 24) = 0 [pid 5873] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5875] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5873] <... futex resumed>) = 0 [pid 5875] memfd_create("syzkaller", 0 [pid 5873] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5875] <... memfd_create resumed>) = 3 [pid 5875] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 [pid 5875] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5870] <... mount resumed>) = 0 [pid 5870] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY) = 3 [pid 5870] chdir("./file2") = 0 [pid 5870] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5870] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5868] <... futex resumed>) = 0 [pid 5870] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5868] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5870] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5868] <... futex resumed>) = 0 [pid 5870] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 5868] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5870] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 5870] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5872] <... write resumed>) = 1048576 [pid 5870] <... futex resumed>) = 1 [pid 5868] <... futex resumed>) = 0 [ 82.800993][ T5874] NILFS (loop2): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 5872] munmap(0x7f0d62800000, 138412032 [pid 5870] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5868] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5872] <... munmap resumed>) = 0 [pid 5870] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5868] <... futex resumed>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5870] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 5868] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5872] <... openat resumed>) = 4 [pid 5870] <... openat resumed>) = 4 [pid 5872] ioctl(4, LOOP_SET_FD, 3 [pid 5870] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5868] <... futex resumed>) = 0 [pid 5870] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5868] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5870] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5868] <... futex resumed>) = 0 [pid 5870] read(-1, [pid 5868] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5870] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 5870] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5868] <... futex resumed>) = 0 [pid 5870] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5868] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5870] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5868] <... futex resumed>) = 0 [pid 5870] memfd_create("syzkaller", 0 [pid 5868] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5870] <... memfd_create resumed>) = 5 [pid 5870] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 [pid 5870] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5872] <... ioctl resumed>) = 0 [pid 5872] close(3) = 0 [ 82.845425][ T5861] udevd[5861]: incorrect nilfs2 checksum on /dev/loop3 [ 82.849807][ T5872] loop4: detected capacity change from 0 to 2048 [ 82.868423][ T5876] NILFS (loop3): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 5872] close(4 [pid 5875] <... write resumed>) = 1048576 [pid 5872] <... close resumed>) = 0 [pid 5872] mkdir("./file2", 0777) = 0 [pid 5872] mount("/dev/loop4", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 5864] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 5864] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5864] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5870] <... write resumed>) = 524288 [pid 5863] close(3 [pid 5875] munmap(0x7f0d62800000, 138412032 [pid 5870] munmap(0x7f0d62800000, 138412032 [pid 5863] <... close resumed>) = 0 [pid 5863] close(4 [pid 5870] <... munmap resumed>) = 0 [pid 5863] <... close resumed>) = 0 [pid 5863] close(5 [pid 5875] <... munmap resumed>) = 0 [pid 5871] <... mount resumed>) = 0 [pid 5870] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5863] <... close resumed>) = 0 [pid 5871] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5875] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5870] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5871] <... openat resumed>) = 3 [pid 5875] <... openat resumed>) = 4 [pid 5871] chdir("./file2" [pid 5870] close(5 [pid 5863] close(6 [pid 5875] ioctl(4, LOOP_SET_FD, 3 [pid 5871] <... chdir resumed>) = 0 [pid 5863] <... close resumed>) = 0 [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 5871] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5870] <... close resumed>) = 0 [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 5871] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5870] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5875] <... ioctl resumed>) = 0 [pid 5863] close(22 [pid 5875] close(3 [pid 5871] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5870] <... futex resumed>) = 1 [pid 5868] <... futex resumed>) = 0 [pid 5863] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... close resumed>) = 0 [pid 5871] <... futex resumed>) = 1 [pid 5870] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5869] <... futex resumed>) = 0 [pid 5868] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [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) [ 82.892804][ T5865] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 82.910101][ T5872] NILFS (loop4): broken superblock, retrying with spare superblock (blocksize = 1024) [ 82.928376][ T5875] loop0: detected capacity change from 0 to 2048 [pid 5863] close(26) = -1 EBADF (Bad file descriptor) [pid 5863] close(27) = -1 EBADF (Bad file descriptor) [pid 5875] close(4 [pid 5871] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5870] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5869] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5868] <... futex resumed>) = 0 [pid 5863] close(28 [pid 5875] <... close resumed>) = 0 [pid 5871] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5870] fsync(-1 [pid 5869] <... futex resumed>) = 0 [pid 5863] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] mkdir("./file2", 0777 [pid 5871] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 5870] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 5869] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5868] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5863] close(29 [pid 5875] <... mkdir resumed>) = 0 [pid 5871] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 5870] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5868] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5875] mount("/dev/loop0", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 5871] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5870] <... futex resumed>) = 0 [pid 5868] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5863] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5871] <... futex resumed>) = 1 [pid 5870] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5869] <... futex resumed>) = 0 [pid 5868] <... futex resumed>) = 0 [pid 5871] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5869] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5868] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5871] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5869] <... futex resumed>) = 0 [pid 5871] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 5869] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5871] <... openat resumed>) = 4 [pid 5871] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5869] <... futex resumed>) = 0 [pid 5871] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5869] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5871] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5869] <... futex resumed>) = 0 [pid 5871] read(-1, [pid 5869] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5871] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 5871] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5869] <... futex resumed>) = 0 [pid 5871] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5869] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5871] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5869] <... futex resumed>) = 0 [pid 5871] memfd_create("syzkaller", 0 [pid 5869] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5871] <... memfd_create resumed>) = 5 [pid 5871] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 [ 82.940688][ T5838] udevd[5838]: incorrect nilfs2 checksum on /dev/loop4 [ 82.964190][ T5875] NILFS (loop0): broken superblock, retrying with spare superblock (blocksize = 1024) [ 82.968290][ T5877] NILFS (loop4): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 5871] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5870] <... openat resumed>) = 5 [pid 5863] exit_group(0 [pid 5872] <... mount resumed>) = 0 [pid 5871] <... write resumed>) = 524288 [pid 5870] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5871] munmap(0x7f0d62800000, 138412032 [pid 5870] <... futex resumed>) = 1 [pid 5868] <... futex resumed>) = 0 [pid 5871] <... munmap resumed>) = 0 [pid 5870] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5868] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5870] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5868] <... futex resumed>) = 0 [pid 5870] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 5868] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5871] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5872] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5866] <... futex resumed>) = ? [pid 5864] <... futex resumed>) = ? [pid 5863] <... exit_group resumed>) = ? [pid 5871] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5871] close(5) = 0 [pid 5875] <... mount resumed>) = 0 [pid 5872] <... openat resumed>) = 3 [pid 5870] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 5866] +++ exited with 0 +++ [pid 5864] +++ exited with 0 +++ [pid 5863] +++ exited with 0 +++ [pid 5875] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5872] chdir("./file2" [pid 5871] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5870] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5834] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 5871] <... futex resumed>) = 1 [pid 5870] <... futex resumed>) = 1 [pid 5869] <... futex resumed>) = 0 [pid 5868] <... futex resumed>) = 0 [pid 5834] restart_syscall(<... resuming interrupted clone ...> [pid 5872] <... chdir resumed>) = 0 [pid 5871] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5870] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5869] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5875] <... openat resumed>) = 3 [pid 5871] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5868] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5871] fsync(-1 [pid 5869] <... futex resumed>) = 0 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5875] chdir("./file2") = 0 [pid 5875] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5871] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 5870] <... futex resumed>) = 0 [pid 5868] <... futex resumed>) = 1 [pid 5834] <... restart_syscall resumed>) = 0 [pid 5875] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5871] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5870] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 5868] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5875] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5872] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5871] <... futex resumed>) = 0 [pid 5870] <... openat resumed>) = 6 [pid 5869] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5875] <... futex resumed>) = 1 [pid 5873] <... futex resumed>) = 0 [pid 5872] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5871] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5870] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5869] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5875] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5873] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5872] <... futex resumed>) = 1 [pid 5870] <... futex resumed>) = 1 [pid 5869] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5868] <... futex resumed>) = 0 [pid 5867] <... futex resumed>) = 0 [pid 5834] umount2("./1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5873] <... futex resumed>) = 0 [pid 5872] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5871] <... futex resumed>) = 0 [pid 5870] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5869] <... futex resumed>) = 1 [pid 5868] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5867] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 5873] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5872] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5871] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5870] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5869] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5868] <... futex resumed>) = 0 [pid 5867] <... futex resumed>) = 0 [pid 5834] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5875] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 5872] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 5871] <... openat resumed>) = 5 [pid 5870] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 5868] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5867] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5834] <... openat resumed>) = 3 [pid 5875] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5872] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 5871] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5834] newfstatat(3, "", [pid 5875] <... futex resumed>) = 1 [pid 5873] <... futex resumed>) = 0 [pid 5872] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5871] <... futex resumed>) = 1 [pid 5869] <... futex resumed>) = 0 [pid 5875] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5873] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5872] <... futex resumed>) = 1 [pid 5871] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5869] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5867] <... futex resumed>) = 0 [pid 5834] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 5875] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5873] <... futex resumed>) = 0 [pid 5872] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5871] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5869] <... futex resumed>) = 0 [pid 5867] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5834] getdents64(3, [pid 5875] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 5873] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5872] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5871] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 5869] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5867] <... futex resumed>) = 0 [pid 5834] <... getdents64 resumed>0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 5875] <... openat resumed>) = 4 [pid 5872] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 5867] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5875] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5872] <... openat resumed>) = 4 [pid 5834] umount2("./1/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] <... futex resumed>) = 1 [pid 5873] <... futex resumed>) = 0 [ 82.997001][ T5838] udevd[5838]: incorrect nilfs2 checksum on /dev/loop0 [ 83.005712][ T5874] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 83.014211][ T5878] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 5872] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5867] <... futex resumed>) = 0 [pid 5872] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5867] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5872] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5867] <... futex resumed>) = 0 [pid 5872] read(-1, [pid 5867] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5872] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 5872] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5867] <... futex resumed>) = 0 [pid 5872] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5867] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5872] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5867] <... futex resumed>) = 0 [pid 5872] memfd_create("syzkaller", 0 [pid 5867] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5872] <... memfd_create resumed>) = 5 [pid 5872] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 [pid 5875] read(-1, [pid 5873] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5872] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 5873] <... futex resumed>) = 0 [pid 5872] <... write resumed>) = 524288 [pid 5875] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5873] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5872] munmap(0x7f0d62800000, 138412032 [pid 5834] newfstatat(AT_FDCWD, "./1/cgroup", [pid 5875] <... futex resumed>) = 0 [pid 5873] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5872] <... munmap resumed>) = 0 [pid 5875] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5873] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5872] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5871] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 5834] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5875] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5873] <... futex resumed>) = 0 [pid 5872] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5871] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5834] unlink("./1/cgroup" [pid 5875] memfd_create("syzkaller", 0 [pid 5873] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5872] close(5 [pid 5871] <... futex resumed>) = 1 [pid 5869] <... futex resumed>) = 0 [pid 5875] <... memfd_create resumed>) = 5 [pid 5872] <... close resumed>) = 0 [pid 5871] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5869] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5834] <... unlink resumed>) = 0 [pid 5875] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5871] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5872] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5869] <... futex resumed>) = 0 [pid 5834] umount2("./1/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] <... mmap resumed>) = 0x7f0d62800000 [pid 5872] <... futex resumed>) = 1 [pid 5871] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 5869] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5834] newfstatat(AT_FDCWD, "./1/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5872] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5871] <... openat resumed>) = 6 [pid 5834] unlink("./1/cgroup.cpu" [pid 5871] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5869] <... futex resumed>) = 0 [pid 5871] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5869] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5871] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5869] <... futex resumed>) = 0 [pid 5871] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 5869] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5867] <... futex resumed>) = 0 [ 83.063646][ T5876] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5875] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5868] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5867] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5834] <... unlink resumed>) = 0 [pid 5867] <... futex resumed>) = 1 [pid 5872] <... futex resumed>) = 0 [pid 5834] umount2("./1/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5872] fsync(-1) = -1 EBADF (Bad file descriptor) [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5872] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5867] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5867] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5867] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5872] <... futex resumed>) = 1 [pid 5834] newfstatat(AT_FDCWD, "./1/cgroup.net", [pid 5872] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5867] <... futex resumed>) = 0 [pid 5867] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=49000000} [pid 5872] <... openat resumed>) = 5 [pid 5834] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5872] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5834] unlink("./1/cgroup.net" [pid 5872] <... futex resumed>) = 1 [pid 5867] <... futex resumed>) = 0 [pid 5872] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5869] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5867] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5875] <... write resumed>) = 524288 [pid 5872] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5875] munmap(0x7f0d62800000, 138412032 [pid 5872] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 5834] <... unlink resumed>) = 0 [pid 5867] <... futex resumed>) = 0 [pid 5867] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5834] umount2("./1/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5875] <... munmap resumed>) = 0 [pid 5834] newfstatat(AT_FDCWD, "./1/binderfs", [pid 5875] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5834] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5834] unlink("./1/binderfs") = 0 [pid 5875] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5834] umount2("./1/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] close(5) = 0 [pid 5875] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5873] <... futex resumed>) = 0 [pid 5875] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5873] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5875] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5873] <... futex resumed>) = 0 [pid 5875] fsync(-1 [pid 5873] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5875] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 5872] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 5875] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5872] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5875] <... futex resumed>) = 1 [pid 5873] <... futex resumed>) = 0 [pid 5872] <... futex resumed>) = 1 [pid 5875] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5873] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5872] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5875] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5873] <... futex resumed>) = 0 [pid 5875] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5873] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5867] <... futex resumed>) = 0 [pid 5867] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5867] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5872] <... futex resumed>) = 0 [pid 5875] <... openat resumed>) = 5 [pid 5872] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000) = 6 [pid 5872] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5875] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5872] <... futex resumed>) = 1 [pid 5867] <... futex resumed>) = 0 [pid 5867] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5875] <... futex resumed>) = 1 [pid 5873] <... futex resumed>) = 0 [pid 5872] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 5867] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5873] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5875] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 5873] <... futex resumed>) = 0 [ 83.165839][ T5877] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 83.181087][ T5865] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 83.197167][ T5865] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5873] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5875] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 5875] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5867] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5875] <... futex resumed>) = 0 [pid 5873] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5875] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5873] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5875] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5873] <... futex resumed>) = 0 [pid 5875] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 5873] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5875] <... openat resumed>) = 6 [pid 5875] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5873] <... futex resumed>) = 0 [pid 5875] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5873] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5875] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5873] <... futex resumed>) = 0 [pid 5875] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [ 83.233654][ T5878] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 83.256707][ T5865] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 83.271694][ T5865] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5873] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [ 83.292348][ T5865] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 83.318677][ T5865] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 83.351541][ T5865] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 83.359941][ T5876] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 83.365744][ T5874] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5870] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 5871] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 5871] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5869] close(3 [pid 5871] <... futex resumed>) = 0 [pid 5869] <... close resumed>) = 0 [pid 5871] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5869] close(4) = 0 [pid 5869] close(5) = 0 [pid 5869] close(6) = 0 [pid 5869] close(7) = -1 EBADF (Bad file descriptor) [pid 5869] close(8) = -1 EBADF (Bad file descriptor) [pid 5869] close(9 [pid 5870] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5869] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5868] close(3) = 0 [pid 5868] close(4 [pid 5869] close(10 [pid 5868] <... close resumed>) = 0 [pid 5868] close(5) = 0 [pid 5868] close(6 [pid 5870] <... futex resumed>) = 0 [pid 5869] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5868] <... close resumed>) = 0 [pid 5870] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5869] close(11 [pid 5868] close(7 [pid 5869] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5868] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5868] close(8 [pid 5869] close(12 [pid 5868] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5869] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5868] close(9 [pid 5869] close(13 [pid 5868] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5869] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5868] close(10 [pid 5869] close(14 [pid 5868] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5869] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5868] close(11 [pid 5869] close(15 [pid 5868] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5869] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5868] close(12 [pid 5869] close(16 [pid 5868] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5869] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5868] close(13 [pid 5869] close(17 [pid 5868] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5868] close(14) = -1 EBADF (Bad file descriptor) [pid 5869] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5868] close(15 [pid 5869] close(18 [pid 5868] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5869] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5868] close(16 [pid 5869] close(19 [pid 5868] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5869] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5868] close(17 [pid 5869] close(20) = -1 EBADF (Bad file descriptor) [pid 5868] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5869] close(21 [pid 5868] close(18 [pid 5869] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5868] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5869] close(22 [pid 5868] close(19 [pid 5869] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5868] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5869] close(23 [pid 5868] close(20 [pid 5869] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5869] close(24 [pid 5868] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5869] <... close resumed>) = -1 EBADF (Bad file descriptor) [ 83.399824][ T5865] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 83.418163][ T5865] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5868] close(21 [pid 5869] close(25 [pid 5868] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5869] <... close resumed>) = -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 5871] <... futex resumed>) = ? [pid 5869] <... exit_group resumed>) = ? [pid 5868] close(22 [pid 5871] +++ exited with 0 +++ [pid 5868] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5868] close(23) = -1 EBADF (Bad file descriptor) [ 83.448323][ T5865] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 83.469901][ T5865] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 83.483398][ T5865] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5868] close(24 [pid 5869] +++ exited with 0 +++ [pid 5868] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5868] close(25 [pid 5835] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 5868] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5868] close(26 [pid 5872] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 5868] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5872] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5868] close(27 [pid 5867] close(3 [pid 5835] umount2("./1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5872] <... futex resumed>) = 0 [pid 5868] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5867] <... close resumed>) = 0 [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5872] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5868] close(28 [pid 5867] close(4 [pid 5835] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5868] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5868] close(29) = -1 EBADF (Bad file descriptor) [pid 5867] <... close resumed>) = 0 [pid 5835] <... openat resumed>) = 3 [pid 5868] exit_group(0 [pid 5835] newfstatat(3, "", [pid 5868] <... exit_group resumed>) = ? [pid 5867] close(5 [pid 5835] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 5870] <... futex resumed>) = ? [pid 5867] <... close resumed>) = 0 [pid 5835] getdents64(3, [pid 5867] close(6 [pid 5835] <... getdents64 resumed>0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 5867] <... close resumed>) = 0 [pid 5867] close(7 [pid 5835] umount2("./1/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5867] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5867] close(8 [pid 5835] newfstatat(AT_FDCWD, "./1/cgroup", [pid 5867] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5870] +++ exited with 0 +++ [pid 5868] +++ exited with 0 +++ [pid 5835] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [ 83.497256][ T5877] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 83.508825][ T5865] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 83.522539][ T5865] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 83.535770][ T5865] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5867] close(9) = -1 EBADF (Bad file descriptor) [pid 5835] unlink("./1/cgroup" [pid 5836] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=23 /* 0.23 s */} --- [pid 5867] close(10) = -1 EBADF (Bad file descriptor) [pid 5835] <... unlink resumed>) = 0 [pid 5867] close(11) = -1 EBADF (Bad file descriptor) [pid 5867] close(12 [pid 5835] umount2("./1/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5875] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 5875] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5867] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] umount2("./1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] <... futex resumed>) = 0 [pid 5867] close(13 [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5875] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5867] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5835] newfstatat(AT_FDCWD, "./1/cgroup.cpu", [ 83.549270][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 83.555297][ T5878] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 83.573983][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 83.586571][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5867] close(14 [pid 5836] <... openat resumed>) = 3 [pid 5835] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5873] close(3) = 0 [pid 5873] close(4) = 0 [pid 5873] close(5) = 0 [pid 5873] close(6) = 0 [pid 5873] close(7) = -1 EBADF (Bad file descriptor) [pid 5873] close(8) = -1 EBADF (Bad file descriptor) [pid 5873] close(9) = -1 EBADF (Bad file descriptor) [pid 5873] close(10) = -1 EBADF (Bad file descriptor) [pid 5873] close(11) = -1 EBADF (Bad file descriptor) [pid 5873] close(12) = -1 EBADF (Bad file descriptor) [pid 5873] close(13) = -1 EBADF (Bad file descriptor) [pid 5873] close(14) = -1 EBADF (Bad file descriptor) [pid 5873] close(15) = -1 EBADF (Bad file descriptor) [pid 5873] close(16) = -1 EBADF (Bad file descriptor) [pid 5873] close(17) = -1 EBADF (Bad file descriptor) [pid 5873] close(18) = -1 EBADF (Bad file descriptor) [pid 5873] close(19) = -1 EBADF (Bad file descriptor) [pid 5873] close(20) = -1 EBADF (Bad file descriptor) [pid 5873] close(21) = -1 EBADF (Bad file descriptor) [pid 5873] close(22) = -1 EBADF (Bad file descriptor) [pid 5873] close(23) = -1 EBADF (Bad file descriptor) [pid 5873] close(24) = -1 EBADF (Bad file descriptor) [pid 5873] close(25) = -1 EBADF (Bad file descriptor) [pid 5873] close(26) = -1 EBADF (Bad file descriptor) [pid 5873] close(27) = -1 EBADF (Bad file descriptor) [pid 5873] close(28) = -1 EBADF (Bad file descriptor) [pid 5873] close(29) = -1 EBADF (Bad file descriptor) [pid 5873] exit_group(0) = ? [pid 5867] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5875] <... futex resumed>) = ? [pid 5836] newfstatat(3, "", [pid 5835] unlink("./1/cgroup.cpu" [pid 5875] +++ exited with 0 +++ [pid 5873] +++ exited with 0 +++ [pid 5867] close(15 [pid 5836] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 5835] <... unlink resumed>) = 0 [pid 5867] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] getdents64(3, [pid 5835] umount2("./1/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5867] close(16 [pid 5836] <... getdents64 resumed>0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5867] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] umount2("./1/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5835] newfstatat(AT_FDCWD, "./1/cgroup.net", [pid 5867] close(17 [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5835] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5867] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] newfstatat(AT_FDCWD, "./1/cgroup", [pid 5835] unlink("./1/cgroup.net" [pid 5867] close(18 [pid 5836] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5835] <... unlink resumed>) = 0 [pid 5867] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] unlink("./1/cgroup" [pid 5835] umount2("./1/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5867] close(19 [pid 5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5, si_uid=0, si_status=0, si_utime=0, si_stime=25 /* 0.25 s */} --- [pid 5836] <... unlink resumed>) = 0 [pid 5867] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] umount2("./1/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5867] close(20 [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5835] newfstatat(AT_FDCWD, "./1/binderfs", [pid 5867] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] newfstatat(AT_FDCWD, "./1/cgroup.cpu", [pid 5867] close(21 [pid 5835] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5867] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5835] unlink("./1/binderfs" [pid 5867] close(22 [pid 5836] unlink("./1/cgroup.cpu" [pid 5835] <... unlink resumed>) = 0 [pid 5836] <... unlink resumed>) = 0 [pid 5835] umount2("./1/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5867] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] umount2("./1/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5867] close(23) = -1 EBADF (Bad file descriptor) [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5867] close(24 [pid 5836] newfstatat(AT_FDCWD, "./1/cgroup.net", [pid 5867] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5867] close(25 [pid 5836] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] umount2("./1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5867] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] unlink("./1/cgroup.net" [pid 5867] close(26) = -1 EBADF (Bad file descriptor) [pid 5836] <... unlink resumed>) = 0 [pid 5833] <... umount2 resumed>) = -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 5867] close(27 [pid 5836] umount2("./1/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5867] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5867] close(28 [pid 5836] newfstatat(AT_FDCWD, "./1/binderfs", [pid 5867] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5867] close(29 [pid 5833] getdents64(3, 0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 5867] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5833] umount2("./1/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./1/cgroup", [pid 5867] exit_group(0 [pid 5872] <... futex resumed>) = ? [pid 5867] <... exit_group resumed>) = ? [pid 5833] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5872] +++ exited with 0 +++ [pid 5833] unlink("./1/cgroup") = 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 [ 83.597762][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 83.609732][ T5834] NILFS (loop1): disposed unprocessed dirty file(s) when stopping log writer [pid 5833] umount2("./1/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5836] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5836] unlink("./1/binderfs") = 0 [pid 5833] newfstatat(AT_FDCWD, "./1/cgroup.net", [pid 5867] +++ exited with 0 +++ [pid 5836] umount2("./1/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5834] <... umount2 resumed>) = 0 [pid 5833] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5837] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [pid 5834] umount2("./1/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5833] unlink("./1/cgroup.net" [pid 5837] umount2("./1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5833] <... unlink resumed>) = 0 [pid 5837] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5834] newfstatat(AT_FDCWD, "./1/file2", [pid 5833] umount2("./1/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5837] <... openat resumed>) = 3 [pid 5834] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5837] newfstatat(3, "", [pid 5834] umount2("./1/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5837] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./1/binderfs", [pid 5837] getdents64(3, [pid 5834] openat(AT_FDCWD, "./1/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5833] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5837] <... getdents64 resumed>0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 5834] <... openat resumed>) = 4 [pid 5837] umount2("./1/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5833] unlink("./1/binderfs" [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5834] newfstatat(4, "", [pid 5833] <... unlink resumed>) = 0 [pid 5837] newfstatat(AT_FDCWD, "./1/cgroup", [pid 5834] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 5833] umount2("./1/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5834] getdents64(4, [pid 5837] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5834] <... getdents64 resumed>0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 5837] unlink("./1/cgroup" [pid 5834] getdents64(4, [pid 5837] <... unlink resumed>) = 0 [pid 5834] <... getdents64 resumed>0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 5837] umount2("./1/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5834] close(4) = 0 [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5834] rmdir("./1/file2") = 0 [pid 5837] newfstatat(AT_FDCWD, "./1/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5834] getdents64(3, [pid 5837] unlink("./1/cgroup.cpu") = 0 [pid 5834] <... getdents64 resumed>0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 5837] umount2("./1/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5834] close(3) = 0 [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5834] rmdir("./1" [pid 5837] newfstatat(AT_FDCWD, "./1/cgroup.net", [pid 5834] <... rmdir resumed>) = 0 [pid 5837] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5834] mkdir("./2", 0777 [pid 5837] unlink("./1/cgroup.net") = 0 [pid 5834] <... mkdir resumed>) = 0 [ 83.654257][ T5876] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 83.667221][ T5876] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 83.685472][ T5876] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5837] umount2("./1/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5834] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5834] <... openat resumed>) = 3 [pid 5834] ioctl(3, LOOP_CLR_FD) = 0 [pid 5834] close(3 [pid 5837] newfstatat(AT_FDCWD, "./1/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5837] unlink("./1/binderfs") = 0 [pid 5837] umount2("./1/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5834] <... close resumed>) = 0 [ 83.697208][ T5874] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 83.700428][ T5874] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 83.710006][ T5878] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 83.732535][ T5876] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5834] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555fa3c690) = 7 [ 83.744583][ T5876] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 83.753660][ T5874] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 83.755923][ T5878] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 83.779296][ T5876] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 83.780846][ T5878] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 83.791002][ T5876] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 83.813818][ T5876] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 83.814247][ T5877] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 83.826902][ T5876] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 83.847088][ T5874] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 83.858199][ T5876] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 83.871568][ T5878] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 83.872988][ T5876] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 executing program ./strace-static-x86_64: Process 5879 attached [pid 5879] set_robust_list(0x55555fa3c6a0, 24) = 0 [pid 5879] chdir("./2") = 0 [pid 5879] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5879] setpgid(0, 0) = 0 [pid 5879] symlink("/syzcgroup/unified/syz1", "./cgroup") = 0 [pid 5879] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu") = 0 [pid 5879] symlink("/syzcgroup/net/syz1", "./cgroup.net") = 0 [pid 5879] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5879] write(3, "1000", 4) = 4 [pid 5879] close(3) = 0 [pid 5879] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5879] write(1, "executing program\n", 18) = 18 [pid 5879] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5879] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, NULL, 8) = 0 [pid 5879] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5879] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0d6adff000 [pid 5879] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE) = 0 [ 83.896273][ T5874] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 83.896768][ T5878] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 83.909160][ T5877] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 83.933287][ T5878] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 83.933582][ T5876] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5879] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5879] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0}./strace-static-x86_64: Process 5880 attached [pid 5880] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 5879] <... clone3 resumed> => {parent_tid=[8]}, 88) = 8 [pid 5880] <... rseq resumed>) = 0 [pid 5879] rt_sigprocmask(SIG_SETMASK, [], [pid 5880] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 5879] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5880] <... set_robust_list resumed>) = 0 [pid 5879] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5880] rt_sigprocmask(SIG_SETMASK, [], [pid 5879] <... futex resumed>) = 0 [pid 5880] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5879] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5880] memfd_create("syzkaller", 0) = 3 [pid 5880] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 [pid 5880] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576 [ 83.956448][ T5874] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 83.969825][ T5877] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 83.979872][ T5878] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 83.981370][ T5876] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5880] munmap(0x7f0d62800000, 138412032) = 0 [pid 5880] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [ 83.999437][ T5878] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 84.005058][ T5874] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 84.021056][ T5880] loop1: detected capacity change from 0 to 2048 [ 84.029119][ T5877] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5880] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5880] close(3) = 0 [pid 5880] close(4) = 0 [pid 5880] mkdir("./file2", 0777) = 0 [ 84.036651][ T5878] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 84.047331][ T5874] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 84.070127][ T5876] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 84.080882][ T5880] NILFS (loop1): broken superblock, retrying with spare superblock (blocksize = 1024) [ 84.083291][ T5877] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 84.097165][ T5838] udevd[5838]: incorrect nilfs2 checksum on /dev/loop1 [ 84.103223][ T5876] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 84.103411][ T5874] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 84.114646][ T5878] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 84.122740][ T5835] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5880] mount("/dev/loop1", "./file2", "nilfs2", MS_SYNCHRONOUS, "") = 0 [pid 5880] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY) = 3 [pid 5880] chdir("./file2") = 0 [pid 5880] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5880] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5879] <... futex resumed>) = 0 [pid 5880] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5879] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5880] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5879] <... futex resumed>) = 0 [pid 5880] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 5879] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5880] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 5880] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5879] <... futex resumed>) = 0 [pid 5880] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5879] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5880] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5879] <... futex resumed>) = 0 [pid 5880] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 5879] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5880] <... openat resumed>) = 4 [pid 5880] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5879] <... futex resumed>) = 0 [pid 5880] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 5879] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5880] read(-1, [pid 5879] <... futex resumed>) = 0 [pid 5880] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 5879] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5880] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5879] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5880] <... futex resumed>) = 0 [pid 5879] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5880] memfd_create("syzkaller", 0 [pid 5879] <... futex resumed>) = 0 [pid 5880] <... memfd_create resumed>) = 5 [pid 5879] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5880] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 [pid 5880] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5880] munmap(0x7f0d62800000, 138412032) = 0 [pid 5880] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5880] close(5) = 0 [pid 5880] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5879] <... futex resumed>) = 0 [pid 5880] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5879] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5880] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5879] <... futex resumed>) = 0 [pid 5880] fsync(-1 [pid 5879] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5880] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 5880] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5879] <... futex resumed>) = 0 [pid 5880] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5879] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5880] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5879] <... futex resumed>) = 0 [pid 5880] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5879] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5880] <... openat resumed>) = 5 [pid 5880] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5879] <... futex resumed>) = 0 [pid 5880] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 5879] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 84.156240][ T5835] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 84.167381][ T5835] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 84.179314][ T5835] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 84.187958][ T5878] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 84.190351][ T5835] NILFS (loop3): disposed unprocessed dirty file(s) when stopping log writer [ 84.210442][ T5878] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 84.225247][ T5878] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 84.230809][ T5874] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 84.238842][ T5878] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5879] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 5879] futex(0x7f0d6aef46dc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 84.247509][ T5881] NILFS (loop1): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 84.249680][ T5877] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 84.270865][ T5881] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 84.293820][ T5877] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5879] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0d6adde000 [pid 5879] mprotect(0x7f0d6addf000, 131072, PROT_READ|PROT_WRITE [pid 5880] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 5879] <... mprotect resumed>) = 0 [pid 5835] <... umount2 resumed>) = 0 [pid 5879] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5835] umount2("./1/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5879] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6adfe990, parent_tid=0x7f0d6adfe990, exit_signal=0, stack=0x7f0d6adde000, stack_size=0x20300, tls=0x7f0d6adfe6c0} [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5879] <... clone3 resumed> => {parent_tid=[9]}, 88) = 9 [pid 5835] newfstatat(AT_FDCWD, "./1/file2", [pid 5879] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5879] futex(0x7f0d6aef46d8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5835] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5879] <... futex resumed>) = 0 [pid 5835] umount2("./1/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5879] futex(0x7f0d6aef46dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5835] openat(AT_FDCWD, "./1/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5835] newfstatat(4, "", ./strace-static-x86_64: Process 5882 attached [pid 5880] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5835] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [ 84.294214][ T5878] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 84.305359][ T5874] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 84.328974][ T5877] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 84.340722][ T5833] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5835] getdents64(4, 0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 5835] getdents64(4, [pid 5882] rseq(0x7f0d6adfefe0, 0x20, 0, 0x53053053 [pid 5880] <... futex resumed>) = 0 [pid 5835] <... getdents64 resumed>0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 5835] close(4) = 0 [pid 5835] rmdir("./1/file2") = 0 [pid 5835] getdents64(3, 0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 5835] close(3) = 0 [pid 5835] rmdir("./1") = 0 [pid 5835] mkdir("./2", 0777) = 0 [pid 5835] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5835] ioctl(3, LOOP_CLR_FD) = 0 [ 84.341126][ T5874] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 84.354884][ T5833] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 84.364613][ T5877] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 84.376268][ T5833] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 84.386844][ T5874] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5835] close(3) = 0 [pid 5882] <... rseq resumed>) = 0 [pid 5880] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5879] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5879] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5835] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5879] <... futex resumed>) = 0 [pid 5879] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5835] <... clone resumed>, child_tidptr=0x55555fa3c690) = 6 [ 84.408152][ T5877] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 84.408980][ T5833] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 84.421681][ T5874] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 84.442340][ T5877] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5882] set_robust_list(0x7f0d6adfe9a0, 24 [pid 5880] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5882] <... set_robust_list resumed>) = 0 [ 84.453248][ T5833] NILFS (loop0): disposed unprocessed dirty file(s) when stopping log writer [ 84.463169][ T5877] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 84.474605][ T5874] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 84.486357][ T5877] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 84.497925][ T5877] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5880] pwritev2(-1, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 5882] rt_sigprocmask(SIG_SETMASK, [], [pid 5880] <... pwritev2 resumed>) = -1 EBADF (Bad file descriptor) [pid 5879] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5882] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5880] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5882] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 5880] <... futex resumed>) = 0 [pid 5833] <... umount2 resumed>) = 0 [pid 5833] umount2("./1/file2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./1/file2", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] umount2("./1/file2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 84.499924][ T5836] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 84.510000][ T5877] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 84.530352][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 84.542196][ T5836] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5833] openat(AT_FDCWD, "./1/file2", 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, 0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 5833] getdents64(4, 0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 5833] close(4) = 0 [pid 5833] rmdir("./1/file2") = 0 [pid 5833] getdents64(3, [pid 5880] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5833] <... getdents64 resumed>0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 5833] close(3) = 0 [pid 5833] rmdir("./1") = 0 [pid 5833] mkdir("./2", 0777 [pid 5882] <... openat resumed>) = 6 [pid 5833] <... mkdir resumed>) = 0 [pid 5882] futex(0x7f0d6aef46dc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5833] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5882] <... futex resumed>) = 0 [pid 5833] <... openat resumed>) = 3 [pid 5882] futex(0x7f0d6aef46d8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5833] ioctl(3, LOOP_CLR_FD) = 0 [pid 5833] close(3) = 0 [ 84.554374][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 84.568916][ T5836] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 84.580757][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 84.592386][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5884 attached ./strace-static-x86_64: Process 5883 attached [pid 5879] close(3 [pid 5884] set_robust_list(0x55555fa3c6a0, 24 [pid 5879] <... close resumed>) = 0 [pid 5833] <... clone resumed>, child_tidptr=0x55555fa3c690) = 7 [pid 5884] <... set_robust_list resumed>) = 0 [pid 5883] set_robust_list(0x55555fa3c6a0, 24 [pid 5879] close(4 [pid 5884] chdir("./2") = 0 [pid 5883] <... set_robust_list resumed>) = 0 [pid 5879] <... close resumed>) = 0 [pid 5884] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5879] close(5 [pid 5884] setpgid(0, 0 [pid 5883] chdir("./2" [pid 5879] <... close resumed>) = 0 [pid 5884] <... setpgid resumed>) = 0 executing program [pid 5884] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 5883] <... chdir resumed>) = 0 [pid 5879] close(6 [pid 5884] <... symlink resumed>) = 0 [pid 5884] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5884] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5884] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5884] write(3, "1000", 4) = 4 [pid 5884] close(3) = 0 [pid 5884] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5884] write(1, "executing program\n", 18) = 18 [pid 5884] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5884] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, NULL, 8) = 0 [pid 5879] <... close resumed>) = 0 [pid 5884] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5879] close(7 [pid 5883] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5879] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5883] <... prctl resumed>) = 0 [pid 5884] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5884] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5879] close(8 [pid 5884] <... mmap resumed>) = 0x7f0d6adff000 [pid 5883] setpgid(0, 0 [pid 5879] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5884] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5884] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5883] <... setpgid resumed>) = 0 [pid 5879] close(9 [pid 5884] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5884] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0}./strace-static-x86_64: Process 5885 attached [pid 5883] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5879] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5885] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 5884] <... clone3 resumed> => {parent_tid=[8]}, 88) = 8 [pid 5879] close(10 [pid 5883] <... symlink resumed>) = 0 [pid 5879] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5885] <... rseq resumed>) = 0 [pid 5884] rt_sigprocmask(SIG_SETMASK, [], [pid 5883] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5879] close(11 [pid 5885] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 5884] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5885] <... set_robust_list resumed>) = 0 [pid 5884] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5883] <... symlink resumed>) = 0 [pid 5879] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5885] rt_sigprocmask(SIG_SETMASK, [], [pid 5884] <... futex resumed>) = 0 [pid 5883] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5879] close(12 [pid 5885] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5884] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5883] <... symlink resumed>) = 0 [pid 5879] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5883] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5879] close(13 [pid 5885] memfd_create("syzkaller", 0 [pid 5879] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5883] <... openat resumed>) = 3 [pid 5879] close(14 [pid 5885] <... memfd_create resumed>) = 3 [pid 5879] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5885] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5883] write(3, "1000", 4 [pid 5879] close(15 [pid 5885] <... mmap resumed>) = 0x7f0d62800000 [pid 5883] <... write resumed>) = 4 [pid 5879] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5883] close(3 [pid 5879] close(16) = -1 EBADF (Bad file descriptor) [pid 5883] <... close resumed>) = 0 [pid 5879] close(17 [pid 5885] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5879] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5883] symlink("/dev/binderfs", "./binderfs" [pid 5879] close(18) = -1 EBADF (Bad file descriptor) [pid 5885] <... write resumed>) = 1048576 [pid 5883] <... symlink resumed>) = 0 [pid 5879] close(19executing program [pid 5883] write(1, "executing program\n", 18 [pid 5879] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5885] munmap(0x7f0d62800000, 138412032 [pid 5883] <... write resumed>) = 18 [pid 5879] close(20) = -1 EBADF (Bad file descriptor) [pid 5883] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5879] close(21 [pid 5885] <... munmap resumed>) = 0 [pid 5879] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5879] close(22 [pid 5885] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5879] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5883] <... futex resumed>) = 0 [pid 5879] close(23 [pid 5883] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, [pid 5879] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5883] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5879] close(24 [ 84.604725][ T5836] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 84.617353][ T5836] NILFS (loop2): disposed unprocessed dirty file(s) when stopping log writer [ 84.628548][ T5837] NILFS (loop4): disposed unprocessed dirty file(s) when stopping log writer [pid 5883] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5879] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5883] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5883] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5879] close(25 [pid 5885] <... openat resumed>) = 4 [pid 5883] <... mmap resumed>) = 0x7f0d6adff000 [pid 5879] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5885] ioctl(4, LOOP_SET_FD, 3 [pid 5879] close(26 [pid 5885] <... ioctl resumed>) = 0 [pid 5883] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE [pid 5879] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5885] close(3 [pid 5879] close(27 [pid 5883] <... mprotect resumed>) = 0 [pid 5879] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5885] <... close resumed>) = 0 [pid 5879] close(28) = -1 EBADF (Bad file descriptor) [pid 5885] close(4 [pid 5879] close(29) = -1 EBADF (Bad file descriptor) [pid 5885] <... close resumed>) = 0 [pid 5879] exit_group(0 [pid 5885] mkdir("./file2", 0777 [pid 5883] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5882] <... futex resumed>) = ? [pid 5880] <... futex resumed>) = ? [pid 5879] <... exit_group resumed>) = ? [pid 5883] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5880] +++ exited with 0 +++ [pid 5885] <... mkdir resumed>) = 0 [pid 5883] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0} [pid 5882] +++ exited with 0 +++ [pid 5879] +++ exited with 0 +++ ./strace-static-x86_64: Process 5886 attached [pid 5885] mount("/dev/loop0", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 5834] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- [pid 5834] umount2("./2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5883] <... clone3 resumed> => {parent_tid=[7]}, 88) = 7 [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 84.678895][ T5885] loop0: detected capacity change from 0 to 2048 [ 84.710422][ T5885] NILFS (loop0): broken superblock, retrying with spare superblock (blocksize = 1024) [pid 5886] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 5883] rt_sigprocmask(SIG_SETMASK, [], [pid 5836] <... umount2 resumed>) = 0 [pid 5834] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5886] <... rseq resumed>) = 0 [pid 5885] <... mount resumed>) = 0 [pid 5883] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5837] <... umount2 resumed>) = 0 [pid 5836] umount2("./1/file2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5836] newfstatat(AT_FDCWD, "./1/file2", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5836] umount2("./1/file2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5836] openat(AT_FDCWD, "./1/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5886] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 5885] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5883] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5836] <... openat resumed>) = 4 [pid 5834] <... openat resumed>) = 3 [pid 5885] <... openat resumed>) = 3 [pid 5886] <... set_robust_list resumed>) = 0 [pid 5836] newfstatat(4, "", [pid 5834] newfstatat(3, "", [pid 5883] <... futex resumed>) = 0 [pid 5886] rt_sigprocmask(SIG_SETMASK, [], [pid 5885] chdir("./file2" [pid 5837] umount2("./1/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5834] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 5886] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5885] <... chdir resumed>) = 0 [pid 5883] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5834] getdents64(3, [pid 5886] memfd_create("syzkaller", 0 [pid 5885] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5837] newfstatat(AT_FDCWD, "./1/file2", [pid 5886] <... memfd_create resumed>) = 3 [pid 5886] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5885] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5837] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5836] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 5834] <... getdents64 resumed>0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 5886] <... mmap resumed>) = 0x7f0d62800000 [pid 5885] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] umount2("./1/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5836] getdents64(4, [pid 5834] umount2("./2/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5885] <... futex resumed>) = 1 [pid 5884] <... futex resumed>) = 0 [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5836] <... getdents64 resumed>0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 5885] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 5884] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] openat(AT_FDCWD, "./1/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5836] getdents64(4, [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5885] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 5884] <... futex resumed>) = 0 [pid 5837] <... openat resumed>) = 4 [pid 5836] <... getdents64 resumed>0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 5834] newfstatat(AT_FDCWD, "./2/cgroup", [pid 5885] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5884] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5837] newfstatat(4, "", [pid 5836] close(4 [pid 5885] <... futex resumed>) = 0 [pid 5884] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5837] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 5836] <... close resumed>) = 0 [pid 5834] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5885] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5884] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] getdents64(4, [pid 5836] rmdir("./1/file2" [pid 5834] unlink("./2/cgroup" [pid 5885] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5884] <... futex resumed>) = 0 [pid 5837] <... getdents64 resumed>0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 5836] <... rmdir resumed>) = 0 [pid 5885] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 5884] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5837] getdents64(4, [pid 5836] getdents64(3, [pid 5834] <... unlink resumed>) = 0 [pid 5885] <... openat resumed>) = 4 [pid 5837] <... getdents64 resumed>0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 5836] <... getdents64 resumed>0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 5834] umount2("./2/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5885] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] close(4 [pid 5836] close(3 [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5885] <... futex resumed>) = 1 [pid 5884] <... futex resumed>) = 0 [pid 5837] <... close resumed>) = 0 [pid 5836] <... close resumed>) = 0 [pid 5834] newfstatat(AT_FDCWD, "./2/cgroup.cpu", [pid 5885] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5884] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] rmdir("./1/file2" [pid 5836] rmdir("./1" [pid 5886] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5885] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5884] <... futex resumed>) = 0 [pid 5837] <... rmdir resumed>) = 0 [pid 5836] <... rmdir resumed>) = 0 [pid 5834] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5885] read(-1, [pid 5884] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5837] getdents64(3, [pid 5836] mkdir("./2", 0777 [pid 5834] unlink("./2/cgroup.cpu" [pid 5885] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 5837] <... getdents64 resumed>0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 5836] <... mkdir resumed>) = 0 [pid 5885] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] close(3 [pid 5836] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5885] <... futex resumed>) = 1 [pid 5884] <... futex resumed>) = 0 [pid 5837] <... close resumed>) = 0 [pid 5836] <... openat resumed>) = 3 [pid 5885] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5836] ioctl(3, LOOP_CLR_FD [pid 5885] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5884] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] rmdir("./1" [pid 5836] <... ioctl resumed>) = 0 [pid 5885] memfd_create("syzkaller", 0 [pid 5836] close(3 [pid 5886] <... write resumed>) = 1048576 [pid 5885] <... memfd_create resumed>) = 5 [pid 5884] <... futex resumed>) = 0 [pid 5837] <... rmdir resumed>) = 0 [pid 5834] <... unlink resumed>) = 0 [ 84.732235][ T5838] udevd[5838]: incorrect nilfs2 checksum on /dev/loop0 [ 84.744987][ T5887] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 5885] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5884] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5837] mkdir("./2", 0777 [pid 5834] umount2("./2/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5885] <... mmap resumed>) = 0x7f0d62800000 [pid 5837] <... mkdir resumed>) = 0 [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5885] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5837] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5836] <... close resumed>) = 0 [pid 5837] <... openat resumed>) = 3 [pid 5837] ioctl(3, LOOP_CLR_FD) = 0 [pid 5837] close(3) = 0 [pid 5834] newfstatat(AT_FDCWD, "./2/cgroup.net", [pid 5886] munmap(0x7f0d62800000, 138412032 [pid 5885] <... write resumed>) = 524288 [pid 5837] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5836] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5834] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5886] <... munmap resumed>) = 0 [pid 5885] munmap(0x7f0d62800000, 138412032 [pid 5834] unlink("./2/cgroup.net") = 0 ./strace-static-x86_64: Process 5888 attached [pid 5885] <... munmap resumed>) = 0 [pid 5834] umount2("./2/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5834] newfstatat(AT_FDCWD, "./2/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5885] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5834] unlink("./2/binderfs" [pid 5885] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5834] <... unlink resumed>) = 0 [pid 5834] umount2("./2/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5837] <... clone resumed>, child_tidptr=0x55555fa3c690) = 6 [pid 5885] close(5 [pid 5836] <... clone resumed>, child_tidptr=0x55555fa3c690) = 6 ./strace-static-x86_64: Process 5889 attached [pid 5888] set_robust_list(0x55555fa3c6a0, 24 [pid 5886] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5885] <... close resumed>) = 0 [pid 5888] <... set_robust_list resumed>) = 0 [pid 5889] set_robust_list(0x55555fa3c6a0, 24 [pid 5888] chdir("./2") = 0 [pid 5888] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5885] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5888] <... prctl resumed>) = 0 [pid 5888] setpgid(0, 0 [pid 5886] <... openat resumed>) = 4 [pid 5888] <... setpgid resumed>) = 0 [pid 5889] <... set_robust_list resumed>) = 0 [pid 5885] <... futex resumed>) = 1 [pid 5884] <... futex resumed>) = 0 [pid 5889] chdir("./2" [pid 5888] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 5889] <... chdir resumed>) = 0 [pid 5886] ioctl(4, LOOP_SET_FD, 3 [pid 5885] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5884] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5889] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5888] <... symlink resumed>) = 0 [pid 5885] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5884] <... futex resumed>) = 0 [pid 5888] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu") = 0 [pid 5885] fsync(-1 [pid 5889] <... prctl resumed>) = 0 [pid 5888] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 5885] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 5884] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5889] setpgid(0, 0) = 0 [pid 5889] symlink("/syzcgroup/unified/syz2", "./cgroup") = 0 [pid 5889] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu") = 0 [pid 5889] symlink("/syzcgroup/net/syz2", "./cgroup.net") = 0 [pid 5889] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5889] write(3, "1000", 4) = 4 [pid 5889] close(3) = 0 [pid 5889] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5889] write(1, "executing program\n", 18) = 18 [pid 5889] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5889] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, NULL, 8) = 0 [pid 5889] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5888] <... symlink resumed>) = 0 [pid 5885] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5889] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5888] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5885] <... futex resumed>) = 0 [pid 5884] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5889] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5886] <... ioctl resumed>) = 0 [pid 5889] <... mmap resumed>) = 0x7f0d6adff000 [pid 5889] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5886] close(3 [pid 5889] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5886] <... close resumed>) = 0 [pid 5889] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5889] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0} [pid 5886] close(4./strace-static-x86_64: Process 5890 attached ) = 0 [pid 5890] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 5889] <... clone3 resumed> => {parent_tid=[7]}, 88) = 7 [pid 5890] <... rseq resumed>) = 0 [pid 5889] rt_sigprocmask(SIG_SETMASK, [], [pid 5886] mkdir("./file2", 0777 [pid 5890] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 5889] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5886] <... mkdir resumed>) = 0 [pid 5890] <... set_robust_list resumed>) = 0 [pid 5889] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5890] rt_sigprocmask(SIG_SETMASK, [], [pid 5889] <... futex resumed>) = 0 [pid 5890] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5889] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5886] mount("/dev/loop3", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 5885] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5884] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5890] memfd_create("syzkaller", 0 [pid 5888] <... openat resumed>) = 3 [pid 5885] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5890] <... memfd_create resumed>) = 3 [pid 5890] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 [pid 5888] write(3, "1000", 4 [pid 5885] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5884] <... futex resumed>) = 0 [pid 5888] <... write resumed>) = 4 [pid 5884] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [ 84.850314][ T5881] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 84.867196][ T5886] loop3: detected capacity change from 0 to 2048 [ 84.874573][ T5881] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 84.887902][ T5881] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5888] close(3 [pid 5890] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5888] <... close resumed>) = 0 [pid 5885] <... openat resumed>) = 5 [pid 5888] symlink("/dev/binderfs", "./binderfs" [pid 5885] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5890] <... write resumed>) = 1048576 [pid 5888] <... symlink resumed>) = 0 [pid 5885] <... futex resumed>) = 1 [pid 5884] <... futex resumed>) = 0 executing program [pid 5890] munmap(0x7f0d62800000, 138412032 [pid 5888] write(1, "executing program\n", 18 [pid 5885] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5884] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5888] <... write resumed>) = 18 [pid 5885] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5884] <... futex resumed>) = 0 [pid 5888] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5885] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 5884] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5888] <... futex resumed>) = 0 [pid 5888] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, NULL, 8) = 0 [pid 5888] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5888] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0d6adff000 [pid 5888] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5888] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5890] <... munmap resumed>) = 0 [pid 5890] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [ 84.916374][ T5881] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 84.932810][ T5886] NILFS (loop3): broken superblock, retrying with spare superblock (blocksize = 1024) [ 84.941374][ T5838] udevd[5838]: incorrect nilfs2 checksum on /dev/loop3 [pid 5890] ioctl(4, LOOP_SET_FD, 3 [pid 5888] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0}./strace-static-x86_64: Process 5892 attached [pid 5892] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 5888] <... clone3 resumed> => {parent_tid=[7]}, 88) = 7 [pid 5892] <... rseq resumed>) = 0 [pid 5892] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 5888] rt_sigprocmask(SIG_SETMASK, [], [pid 5886] <... mount resumed>) = 0 [pid 5892] <... set_robust_list resumed>) = 0 [pid 5888] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5886] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5892] rt_sigprocmask(SIG_SETMASK, [], [pid 5888] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5892] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5888] <... futex resumed>) = 0 [pid 5886] <... openat resumed>) = 3 [pid 5884] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5890] <... ioctl resumed>) = 0 [pid 5890] close(3) = 0 [ 84.957651][ T5881] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 84.968923][ T5890] loop2: detected capacity change from 0 to 2048 [ 84.979587][ T5887] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 84.991473][ T5881] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 84.991979][ T5891] NILFS (loop3): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 5890] close(4) = 0 [pid 5890] mkdir("./file2", 0777) = 0 [pid 5890] mount("/dev/loop2", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 5886] chdir("./file2" [pid 5884] futex(0x7f0d6aef46dc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5885] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 5892] memfd_create("syzkaller", 0 [pid 5888] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5884] <... futex resumed>) = 0 [pid 5886] <... chdir resumed>) = 0 [pid 5885] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5884] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5892] <... memfd_create resumed>) = 3 [pid 5885] <... futex resumed>) = 0 [pid 5892] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5886] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5885] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5884] <... mmap resumed>) = 0x7f0d6adde000 [pid 5892] <... mmap resumed>) = 0x7f0d62800000 [pid 5886] <... openat resumed>) = -1 EBUSY (Device or resource busy) [ 85.014635][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 85.027859][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 85.042028][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 85.042172][ T5890] NILFS (loop2): broken superblock, retrying with spare superblock (blocksize = 1024) [pid 5884] mprotect(0x7f0d6addf000, 131072, PROT_READ|PROT_WRITE [pid 5886] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5884] <... mprotect resumed>) = 0 [pid 5886] <... futex resumed>) = 1 [pid 5884] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5883] <... futex resumed>) = 0 [pid 5886] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5892] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5886] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5883] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5886] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 5884] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5883] <... futex resumed>) = 0 [pid 5886] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 5884] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6adfe990, parent_tid=0x7f0d6adfe990, exit_signal=0, stack=0x7f0d6adde000, stack_size=0x20300, tls=0x7f0d6adfe6c0} [pid 5883] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5886] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5894 attached ) = 0 [pid 5883] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5894] rseq(0x7f0d6adfefe0, 0x20, 0, 0x53053053 [pid 5886] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5884] <... clone3 resumed> => {parent_tid=[9]}, 88) = 9 [pid 5883] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5894] <... rseq resumed>) = 0 [pid 5886] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5884] rt_sigprocmask(SIG_SETMASK, [], [pid 5894] set_robust_list(0x7f0d6adfe9a0, 24 [pid 5886] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 5884] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5883] <... futex resumed>) = 0 [pid 5886] <... openat resumed>) = 4 [pid 5883] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5886] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5883] <... futex resumed>) = 0 [pid 5886] read(-1, [pid 5883] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5886] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 5883] <... futex resumed>) = 0 [pid 5886] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5890] <... mount resumed>) = 0 [pid 5894] <... set_robust_list resumed>) = 0 [pid 5884] futex(0x7f0d6aef46d8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5883] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5886] <... futex resumed>) = 0 [pid 5890] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5894] rt_sigprocmask(SIG_SETMASK, [], [pid 5890] <... openat resumed>) = 3 [pid 5886] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5884] <... futex resumed>) = 0 [pid 5883] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5894] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5892] <... write resumed>) = 1048576 [pid 5890] chdir("./file2" [pid 5884] futex(0x7f0d6aef46dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5883] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5894] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 5890] <... chdir resumed>) = 0 [pid 5886] <... futex resumed>) = 0 [pid 5883] <... futex resumed>) = 1 [pid 5892] munmap(0x7f0d62800000, 138412032 [pid 5890] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5886] memfd_create("syzkaller", 0 [pid 5883] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5890] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5890] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5886] <... memfd_create resumed>) = 5 [pid 5890] <... futex resumed>) = 1 [pid 5894] <... openat resumed>) = 6 [pid 5892] <... munmap resumed>) = 0 [ 85.053798][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 85.078250][ T5838] udevd[5838]: incorrect nilfs2 checksum on /dev/loop2 [ 85.090592][ T5893] NILFS (loop2): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 85.096876][ T5834] NILFS (loop1): disposed unprocessed dirty file(s) when stopping log writer [pid 5890] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5889] <... futex resumed>) = 0 [pid 5886] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5894] futex(0x7f0d6aef46dc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5889] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5890] <... futex resumed>) = 0 [pid 5889] <... futex resumed>) = 1 [pid 5886] <... mmap resumed>) = 0x7f0d62800000 [pid 5890] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 5889] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5892] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5892] ioctl(4, LOOP_SET_FD, 3 [pid 5894] <... futex resumed>) = 1 [pid 5890] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 5886] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5884] <... futex resumed>) = 0 [pid 5892] <... ioctl resumed>) = 0 [pid 5894] futex(0x7f0d6aef46d8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5890] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5886] <... write resumed>) = 524288 [pid 5884] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5834] <... umount2 resumed>) = 0 [pid 5892] close(3 [pid 5890] <... futex resumed>) = 1 [pid 5889] <... futex resumed>) = 0 [pid 5886] munmap(0x7f0d62800000, 138412032 [pid 5885] <... futex resumed>) = 0 [pid 5884] <... futex resumed>) = 1 [pid 5834] umount2("./2/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5892] <... close resumed>) = 0 [pid 5890] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5889] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5885] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 5884] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5892] close(4 [pid 5890] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5889] <... futex resumed>) = 0 [pid 5886] <... munmap resumed>) = 0 [pid 5834] newfstatat(AT_FDCWD, "./2/file2", [pid 5892] <... close resumed>) = 0 [pid 5890] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 5889] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [ 85.126884][ T5892] loop4: detected capacity change from 0 to 2048 [pid 5886] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5834] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5892] mkdir("./file2", 0777 [pid 5890] <... openat resumed>) = 4 [pid 5886] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5892] <... mkdir resumed>) = 0 [pid 5890] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5886] close(5 [pid 5892] mount("/dev/loop4", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 5890] <... futex resumed>) = 1 [pid 5889] <... futex resumed>) = 0 [pid 5886] <... close resumed>) = 0 [pid 5890] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5889] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5886] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5834] umount2("./2/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5890] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5889] <... futex resumed>) = 0 [pid 5886] <... futex resumed>) = 1 [pid 5883] <... futex resumed>) = 0 [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5890] read(-1, [pid 5889] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5886] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5883] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5890] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 5886] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5883] <... futex resumed>) = 0 [pid 5890] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5886] fsync(-1 [pid 5883] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5890] <... futex resumed>) = 1 [pid 5889] <... futex resumed>) = 0 [pid 5886] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 5890] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5889] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5886] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5890] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5889] <... futex resumed>) = 0 [pid 5886] <... futex resumed>) = 1 [pid 5883] <... futex resumed>) = 0 [pid 5890] memfd_create("syzkaller", 0 [pid 5889] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5886] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5883] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5890] <... memfd_create resumed>) = 5 [pid 5886] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5883] <... futex resumed>) = 0 [pid 5890] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5886] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5883] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5890] <... mmap resumed>) = 0x7f0d62800000 [pid 5890] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5890] munmap(0x7f0d62800000, 138412032) = 0 [pid 5884] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5834] openat(AT_FDCWD, "./2/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5890] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5886] <... openat resumed>) = 5 [pid 5834] <... openat resumed>) = 4 [pid 5890] close(5 [pid 5886] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5834] newfstatat(4, "", [pid 5890] <... close resumed>) = 0 [pid 5886] <... futex resumed>) = 1 [pid 5883] <... futex resumed>) = 0 [pid 5890] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5886] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 5883] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5890] <... futex resumed>) = 1 [pid 5889] <... futex resumed>) = 0 [pid 5883] <... futex resumed>) = 0 [pid 5834] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [ 85.179304][ T5892] NILFS (loop4): broken superblock, retrying with spare superblock (blocksize = 1024) [ 85.182762][ T5838] udevd[5838]: incorrect nilfs2 checksum on /dev/loop4 [pid 5890] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5889] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5883] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5834] getdents64(4, [pid 5890] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5889] <... futex resumed>) = 0 [pid 5890] fsync(-1 [pid 5889] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5890] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 5890] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5889] <... futex resumed>) = 0 [pid 5890] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5889] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5890] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5889] <... futex resumed>) = 0 [pid 5890] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5889] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5890] <... openat resumed>) = 5 [pid 5890] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5889] <... futex resumed>) = 0 [pid 5890] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 5889] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5889] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5892] <... mount resumed>) = 0 [pid 5892] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY) = 3 [pid 5892] chdir("./file2") = 0 [pid 5892] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5892] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5888] <... futex resumed>) = 0 [pid 5892] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5888] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5892] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5888] <... futex resumed>) = 0 [pid 5892] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 5888] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5892] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 5892] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5888] <... futex resumed>) = 0 [pid 5892] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5888] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5892] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5888] <... futex resumed>) = 0 [pid 5892] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 5888] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5892] <... openat resumed>) = 4 [pid 5892] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5888] <... futex resumed>) = 0 [pid 5892] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5888] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5892] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5888] <... futex resumed>) = 0 [pid 5892] read(-1, [pid 5888] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5892] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 5892] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5888] <... futex resumed>) = 0 [pid 5892] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5888] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5892] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5888] <... futex resumed>) = 0 [pid 5892] memfd_create("syzkaller", 0 [pid 5888] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5892] <... memfd_create resumed>) = 5 [pid 5892] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 [ 85.225873][ T5891] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5892] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5892] munmap(0x7f0d62800000, 138412032) = 0 [pid 5892] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5883] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5889] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5886] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 5883] futex(0x7f0d6aef46dc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5834] <... getdents64 resumed>0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 5889] futex(0x7f0d6aef46dc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5886] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5883] <... futex resumed>) = 0 [pid 5889] <... futex resumed>) = 0 [pid 5886] <... futex resumed>) = 0 [pid 5883] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5834] getdents64(4, [pid 5889] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5886] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5883] <... mmap resumed>) = 0x7f0d6adde000 [pid 5889] <... mmap resumed>) = 0x7f0d6adde000 [pid 5883] mprotect(0x7f0d6addf000, 131072, PROT_READ|PROT_WRITE [pid 5834] <... getdents64 resumed>0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 5889] mprotect(0x7f0d6addf000, 131072, PROT_READ|PROT_WRITE [pid 5883] <... mprotect resumed>) = 0 [pid 5834] close(4 [pid 5889] <... mprotect resumed>) = 0 [pid 5883] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5889] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5883] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5889] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5883] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6adfe990, parent_tid=0x7f0d6adfe990, exit_signal=0, stack=0x7f0d6adde000, stack_size=0x20300, tls=0x7f0d6adfe6c0} [pid 5889] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6adfe990, parent_tid=0x7f0d6adfe990, exit_signal=0, stack=0x7f0d6adde000, stack_size=0x20300, tls=0x7f0d6adfe6c0} [pid 5883] <... clone3 resumed> => {parent_tid=[8]}, 88) = 8 [pid 5889] <... clone3 resumed> => {parent_tid=[8]}, 88) = 8 [pid 5883] rt_sigprocmask(SIG_SETMASK, [], [pid 5889] rt_sigprocmask(SIG_SETMASK, [], [pid 5883] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5889] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5883] futex(0x7f0d6aef46d8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5889] futex(0x7f0d6aef46d8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5883] <... futex resumed>) = 0 [pid 5889] <... futex resumed>) = 0 [pid 5883] futex(0x7f0d6aef46dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5890] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 5889] futex(0x7f0d6aef46dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5890] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5890] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5892] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5892] close(5./strace-static-x86_64: Process 5897 attached ) = 0 [pid 5885] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 5834] <... close resumed>) = 0 ./strace-static-x86_64: Process 5896 attached [pid 5897] rseq(0x7f0d6adfefe0, 0x20, 0, 0x53053053 [pid 5885] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5834] rmdir("./2/file2" [pid 5897] <... rseq resumed>) = 0 [pid 5896] rseq(0x7f0d6adfefe0, 0x20, 0, 0x53053053 [pid 5892] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5885] <... futex resumed>) = 0 [pid 5897] set_robust_list(0x7f0d6adfe9a0, 24 [pid 5896] <... rseq resumed>) = 0 [pid 5892] <... futex resumed>) = 1 [pid 5885] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5897] <... set_robust_list resumed>) = 0 [pid 5896] set_robust_list(0x7f0d6adfe9a0, 24 [pid 5892] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5834] <... rmdir resumed>) = 0 [pid 5897] rt_sigprocmask(SIG_SETMASK, [], [pid 5896] <... set_robust_list resumed>) = 0 [pid 5884] close(3 [pid 5897] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5896] rt_sigprocmask(SIG_SETMASK, [], [pid 5888] <... futex resumed>) = 0 [pid 5884] <... close resumed>) = 0 [pid 5834] getdents64(3, [pid 5897] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 5896] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5888] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5884] close(4 [pid 5834] <... getdents64 resumed>0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 5888] <... futex resumed>) = 1 [pid 5884] <... close resumed>) = 0 [pid 5888] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5884] close(5) = 0 [pid 5896] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 5884] close(6 [pid 5892] <... futex resumed>) = 0 [pid 5834] close(3 [pid 5897] <... openat resumed>) = 6 [pid 5884] <... close resumed>) = 0 [pid 5884] close(7 [pid 5897] futex(0x7f0d6aef46dc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5884] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5897] <... futex resumed>) = 1 [pid 5892] fsync(-1 [pid 5889] <... futex resumed>) = 0 [pid 5884] close(8 [pid 5834] <... close resumed>) = 0 [pid 5897] futex(0x7f0d6aef46d8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5896] <... openat resumed>) = 6 [pid 5892] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 5889] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5884] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5834] rmdir("./2" [pid 5896] futex(0x7f0d6aef46dc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5892] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5890] <... futex resumed>) = 0 [pid 5889] <... futex resumed>) = 1 [pid 5884] close(9 [pid 5896] <... futex resumed>) = 1 [pid 5892] <... futex resumed>) = 1 [pid 5890] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 5889] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5888] <... futex resumed>) = 0 [pid 5884] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5883] <... futex resumed>) = 0 [pid 5834] <... rmdir resumed>) = 0 [pid 5896] futex(0x7f0d6aef46d8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5892] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5888] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5884] close(10 [pid 5883] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5834] mkdir("./3", 0777 [pid 5892] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5888] <... futex resumed>) = 0 [pid 5886] <... futex resumed>) = 0 [pid 5884] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5883] <... futex resumed>) = 1 [pid 5834] <... mkdir resumed>) = 0 [pid 5892] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5888] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5886] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 5884] close(11 [pid 5883] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5834] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5892] <... openat resumed>) = 5 [pid 5834] <... openat resumed>) = 3 [pid 5834] ioctl(3, LOOP_CLR_FD) = 0 [ 85.272456][ T5895] NILFS (loop4): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 85.291270][ T5893] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 85.306742][ T5887] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5834] close(3 [pid 5892] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5884] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5834] <... close resumed>) = 0 [pid 5892] <... futex resumed>) = 1 [pid 5888] <... futex resumed>) = 0 [pid 5884] close(12 [pid 5892] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5888] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5884] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5892] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5888] <... futex resumed>) = 0 [pid 5884] close(13 [pid 5892] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 5888] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5884] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5884] close(14) = -1 EBADF (Bad file descriptor) [pid 5884] close(15 [pid 5834] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5889] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5884] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5883] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5884] close(16) = -1 EBADF (Bad file descriptor) [pid 5884] close(17) = -1 EBADF (Bad file descriptor) [pid 5884] close(18) = -1 EBADF (Bad file descriptor) [pid 5884] close(19) = -1 EBADF (Bad file descriptor) [pid 5884] close(20) = -1 EBADF (Bad file descriptor) [pid 5884] close(21) = -1 EBADF (Bad file descriptor) [pid 5884] close(22./strace-static-x86_64: Process 5898 attached ) = -1 EBADF (Bad file descriptor) [pid 5892] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 5892] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5884] close(23 [pid 5888] <... futex resumed>) = 0 [pid 5892] <... futex resumed>) = 1 [pid 5884] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5892] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 5888] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5884] close(24) = -1 EBADF (Bad file descriptor) [pid 5898] set_robust_list(0x55555fa3c6a0, 24 [pid 5834] <... clone resumed>, child_tidptr=0x55555fa3c690) = 10 [pid 5898] <... set_robust_list resumed>) = 0 [pid 5888] <... futex resumed>) = 0 [pid 5884] close(25 [pid 5888] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5884] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5898] chdir("./3" [pid 5884] close(26 [pid 5892] <... openat resumed>) = 6 [pid 5898] <... chdir resumed>) = 0 [pid 5884] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5892] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5898] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5892] <... futex resumed>) = 1 [pid 5888] <... futex resumed>) = 0 [pid 5884] close(27 [pid 5898] <... prctl resumed>) = 0 [pid 5892] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5888] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5884] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5898] setpgid(0, 0 [pid 5892] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5888] <... futex resumed>) = 0 [pid 5884] close(28 [pid 5898] <... setpgid resumed>) = 0 [pid 5892] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 5888] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5884] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5898] symlink("/syzcgroup/unified/syz1", "./cgroup") = 0 [pid 5898] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu") = 0 [pid 5898] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 5884] close(29 [pid 5898] <... symlink resumed>) = 0 [pid 5884] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5898] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5884] exit_group(0 [pid 5894] <... futex resumed>) = ? [pid 5885] <... futex resumed>) = ? [pid 5884] <... exit_group resumed>) = ? [pid 5894] +++ exited with 0 +++ [pid 5885] +++ exited with 0 +++ [pid 5884] +++ 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=15 /* 0.15 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, executing program [pid 5898] <... openat resumed>) = 3 [pid 5833] <... getdents64 resumed>0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 5833] umount2("./2/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5898] write(3, "1000", 4 [pid 5833] newfstatat(AT_FDCWD, "./2/cgroup", [pid 5898] <... write resumed>) = 4 [pid 5833] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5898] close(3 [pid 5833] unlink("./2/cgroup" [pid 5898] <... close resumed>) = 0 [pid 5833] <... unlink resumed>) = 0 [pid 5898] symlink("/dev/binderfs", "./binderfs" [pid 5833] umount2("./2/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5898] <... symlink resumed>) = 0 [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5898] write(1, "executing program\n", 18 [pid 5833] newfstatat(AT_FDCWD, "./2/cgroup.cpu", [pid 5898] <... write resumed>) = 18 [pid 5833] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5898] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5833] unlink("./2/cgroup.cpu" [pid 5898] <... futex resumed>) = 0 [pid 5833] <... unlink resumed>) = 0 [pid 5898] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, [pid 5833] umount2("./2/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5898] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5898] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5833] newfstatat(AT_FDCWD, "./2/cgroup.net", [pid 5898] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5833] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5898] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5833] unlink("./2/cgroup.net" [pid 5898] <... mmap resumed>) = 0x7f0d6adff000 [pid 5833] <... unlink resumed>) = 0 [pid 5898] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE [pid 5833] umount2("./2/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5898] <... mprotect resumed>) = 0 [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5898] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5833] newfstatat(AT_FDCWD, "./2/binderfs", [pid 5898] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5833] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5898] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0} [pid 5833] unlink("./2/binderfs"./strace-static-x86_64: Process 5899 attached ) = 0 [pid 5899] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 5898] <... clone3 resumed> => {parent_tid=[11]}, 88) = 11 [pid 5833] umount2("./2/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5899] <... rseq resumed>) = 0 [ 85.393024][ T5895] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5898] rt_sigprocmask(SIG_SETMASK, [], [pid 5899] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 5898] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5899] <... set_robust_list resumed>) = 0 [pid 5898] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5899] rt_sigprocmask(SIG_SETMASK, [], [pid 5898] <... futex resumed>) = 0 [pid 5899] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5898] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5899] memfd_create("syzkaller", 0) = 3 [pid 5899] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 [pid 5899] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5888] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [ 85.453295][ T5887] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 85.465500][ T5887] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 85.492477][ T5887] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5899] <... write resumed>) = 1048576 [pid 5899] munmap(0x7f0d62800000, 138412032) = 0 [pid 5899] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5899] ioctl(4, LOOP_SET_FD, 3) = 0 [ 85.514509][ T5887] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 85.526729][ T5887] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 85.541517][ T5899] loop1: detected capacity change from 0 to 2048 [ 85.549825][ T5887] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5899] close(3) = 0 [pid 5899] close(4) = 0 [pid 5899] mkdir("./file2", 0777) = 0 [ 85.562982][ T5887] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 85.579930][ T5899] NILFS (loop1): broken superblock, retrying with spare superblock (blocksize = 1024) [ 85.600514][ T5887] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5899] mount("/dev/loop1", "./file2", "nilfs2", MS_SYNCHRONOUS, "") = 0 [pid 5899] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY) = 3 [pid 5899] chdir("./file2") = 0 [pid 5899] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5899] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5898] <... futex resumed>) = 0 [pid 5899] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5898] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5899] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5898] <... futex resumed>) = 0 [pid 5899] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 5898] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5899] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 5899] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5898] <... futex resumed>) = 0 [pid 5899] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5898] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5899] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5898] <... futex resumed>) = 0 [pid 5899] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 5898] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5899] <... openat resumed>) = 4 [pid 5899] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5898] <... futex resumed>) = 0 [pid 5899] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5898] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5899] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5898] <... futex resumed>) = 0 [pid 5899] read(-1, [pid 5898] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5899] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 5899] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5898] <... futex resumed>) = 0 [pid 5899] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5898] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5899] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5898] <... futex resumed>) = 0 [pid 5899] memfd_create("syzkaller", 0 [pid 5898] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5899] <... memfd_create resumed>) = 5 [pid 5899] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 [pid 5899] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5899] munmap(0x7f0d62800000, 138412032) = 0 [pid 5899] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [ 85.649747][ T5900] NILFS (loop1): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 85.658099][ T5887] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 85.676357][ T5887] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5899] close(5) = 0 [pid 5899] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5898] <... futex resumed>) = 0 [pid 5899] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5898] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5899] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5898] <... futex resumed>) = 0 [pid 5899] fsync(-1 [pid 5898] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5899] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 5899] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5898] <... futex resumed>) = 0 [pid 5899] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5898] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5899] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5898] <... futex resumed>) = 0 [pid 5899] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5898] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5899] <... openat resumed>) = 5 [pid 5899] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5898] <... futex resumed>) = 0 [pid 5899] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 5898] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5898] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5890] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [ 85.703033][ T5887] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 85.707960][ T5893] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 85.726164][ T5887] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 85.737247][ T5891] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5890] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5886] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 5890] <... futex resumed>) = 0 [pid 5886] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5890] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5889] close(3 [pid 5886] <... futex resumed>) = 0 [pid 5889] <... close resumed>) = 0 [pid 5886] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5883] close(3 [pid 5899] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 5898] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5889] close(4 [pid 5883] <... close resumed>) = 0 [pid 5889] <... close resumed>) = 0 [pid 5883] close(4 [pid 5889] close(5 [pid 5883] <... close resumed>) = 0 [pid 5889] <... close resumed>) = 0 [pid 5883] close(5 [pid 5889] close(6 [pid 5883] <... close resumed>) = 0 [pid 5889] <... close resumed>) = 0 [pid 5883] close(6 [pid 5889] close(7 [pid 5883] <... close resumed>) = 0 [pid 5889] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5883] close(7 [pid 5889] close(8 [pid 5883] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5892] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 5889] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5883] close(8 [pid 5899] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5898] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5892] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5889] close(9 [pid 5888] close(3 [pid 5883] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5892] <... futex resumed>) = 0 [pid 5889] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5888] <... close resumed>) = 0 [pid 5883] close(9 [pid 5892] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5889] close(10 [pid 5888] close(4 [pid 5883] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5889] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5888] <... close resumed>) = 0 [ 85.751066][ T5887] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 85.752099][ T5900] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 85.762782][ T5887] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 85.785078][ T5895] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5883] close(10 [pid 5889] close(11 [pid 5888] close(5 [pid 5883] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5889] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5888] <... close resumed>) = 0 [pid 5883] close(11 [pid 5889] close(12 [pid 5888] close(6 [pid 5883] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5889] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5888] <... close resumed>) = 0 [pid 5883] close(12 [pid 5889] close(13 [pid 5888] close(7 [pid 5883] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5889] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5888] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5883] close(13 [pid 5889] close(14 [pid 5888] close(8 [pid 5883] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5889] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5888] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5883] close(14 [pid 5889] close(15 [pid 5888] close(9 [pid 5883] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5899] <... futex resumed>) = 0 [pid 5889] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5888] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5883] close(15 [pid 5898] <... futex resumed>) = 0 [pid 5899] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 5889] close(16 [pid 5888] close(10 [pid 5883] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5889] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5888] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5883] close(16 [pid 5889] close(17 [pid 5888] close(11 [pid 5883] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5889] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5888] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5883] close(17 [pid 5889] close(18 [pid 5888] close(12 [pid 5883] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5889] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5888] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5883] close(18 [pid 5889] close(19 [pid 5888] close(13 [pid 5883] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5889] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5888] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5883] close(19 [pid 5889] close(20 [pid 5888] close(14 [pid 5883] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5889] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5888] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5883] close(20 [pid 5889] close(21 [pid 5888] close(15 [pid 5883] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5889] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5888] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5883] close(21 [pid 5889] close(22 [pid 5888] close(16 [pid 5883] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5889] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5888] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5883] close(22 [pid 5889] close(23 [pid 5888] close(17 [pid 5883] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5889] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5888] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5883] close(23 [pid 5889] close(24 [pid 5888] close(18 [pid 5883] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5889] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5888] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5883] close(24 [pid 5889] close(25 [pid 5888] close(19 [pid 5883] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5889] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5888] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5883] close(25 [pid 5889] close(26 [pid 5888] close(20 [pid 5883] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5889] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5888] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5883] close(26 [pid 5889] close(27 [pid 5888] close(21 [pid 5883] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5889] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5888] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5883] close(27 [pid 5889] close(28 [pid 5888] close(22 [pid 5883] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5889] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5888] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5883] close(28 [pid 5889] close(29 [pid 5888] close(23 [pid 5883] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5889] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5888] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5883] close(29 [pid 5888] close(24 [pid 5883] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5888] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5883] exit_group(0 [pid 5888] close(25 [pid 5886] <... futex resumed>) = ? [pid 5883] <... exit_group resumed>) = ? [pid 5889] exit_group(0 [pid 5888] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5886] +++ exited with 0 +++ [pid 5897] <... futex resumed>) = ? [pid 5890] <... futex resumed>) = ? [pid 5889] <... exit_group resumed>) = ? [pid 5888] close(26 [pid 5897] +++ exited with 0 +++ [pid 5890] +++ exited with 0 +++ [pid 5888] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5888] close(27) = -1 EBADF (Bad file descriptor) [pid 5888] close(28) = -1 EBADF (Bad file descriptor) [pid 5888] close(29) = -1 EBADF (Bad file descriptor) [pid 5889] +++ exited with 0 +++ [pid 5888] exit_group(0 [pid 5892] <... futex resumed>) = ? [pid 5888] <... exit_group resumed>) = ? [pid 5892] +++ exited with 0 +++ [pid 5888] +++ exited with 0 +++ [ 85.798338][ T5887] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 85.813515][ T5833] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 85.824713][ T5833] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 85.837453][ T5833] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5899] <... openat resumed>) = 6 [pid 5898] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5896] <... futex resumed>) = ? [pid 5899] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5898] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5837] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 5899] <... futex resumed>) = 0 [pid 5898] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5896] +++ exited with 0 +++ [pid 5883] +++ exited with 0 +++ [pid 5899] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 5898] <... futex resumed>) = 0 [pid 5836] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 5837] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5837] umount2("./2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5837] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5837] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 5837] getdents64(3, 0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 5837] umount2("./2/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5836] umount2("./2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5837] newfstatat(AT_FDCWD, "./2/cgroup", [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5835] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6, si_uid=0, si_status=0, si_utime=0, si_stime=21 /* 0.21 s */} --- [pid 5837] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5836] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5837] unlink("./2/cgroup" [pid 5836] <... openat resumed>) = 3 [pid 5836] newfstatat(3, "", [pid 5835] umount2("./2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5837] <... unlink resumed>) = 0 [pid 5836] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5837] umount2("./2/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5836] getdents64(3, [pid 5835] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5836] <... getdents64 resumed>0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 5835] <... openat resumed>) = 3 [pid 5837] newfstatat(AT_FDCWD, "./2/cgroup.cpu", [pid 5836] umount2("./2/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5835] newfstatat(3, "", [pid 5837] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5835] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 5836] newfstatat(AT_FDCWD, "./2/cgroup", [pid 5835] getdents64(3, [pid 5836] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5835] <... getdents64 resumed>0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 5833] <... umount2 resumed>) = 0 [pid 5836] unlink("./2/cgroup" [pid 5835] umount2("./2/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5833] umount2("./2/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5836] <... unlink resumed>) = 0 [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5837] unlink("./2/cgroup.cpu" [pid 5836] umount2("./2/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5835] newfstatat(AT_FDCWD, "./2/cgroup", [pid 5833] newfstatat(AT_FDCWD, "./2/file2", [pid 5837] <... unlink resumed>) = 0 [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5835] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5898] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5837] umount2("./2/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5836] newfstatat(AT_FDCWD, "./2/cgroup.cpu", [pid 5835] unlink("./2/cgroup" [pid 5833] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5836] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5835] <... unlink resumed>) = 0 [pid 5833] umount2("./2/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5837] newfstatat(AT_FDCWD, "./2/cgroup.net", [pid 5836] unlink("./2/cgroup.cpu" [pid 5835] umount2("./2/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5837] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5836] <... unlink resumed>) = 0 [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5837] unlink("./2/cgroup.net" [pid 5836] umount2("./2/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5837] <... unlink resumed>) = 0 [pid 5833] openat(AT_FDCWD, "./2/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5837] umount2("./2/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5835] newfstatat(AT_FDCWD, "./2/cgroup.cpu", [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5836] newfstatat(AT_FDCWD, "./2/cgroup.net", [pid 5835] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] <... openat resumed>) = 4 [pid 5837] newfstatat(AT_FDCWD, "./2/binderfs", [pid 5833] newfstatat(4, "", [pid 5837] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5836] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5835] unlink("./2/cgroup.cpu" [pid 5833] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 5837] unlink("./2/binderfs" [pid 5836] unlink("./2/cgroup.net" [pid 5835] <... unlink resumed>) = 0 [pid 5837] <... unlink resumed>) = 0 [pid 5836] <... unlink resumed>) = 0 [pid 5835] umount2("./2/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5833] getdents64(4, [pid 5837] umount2("./2/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5836] umount2("./2/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5833] <... getdents64 resumed>0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 5835] newfstatat(AT_FDCWD, "./2/cgroup.net", [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 85.848851][ T5833] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 85.860206][ T5833] NILFS (loop0): disposed unprocessed dirty file(s) when stopping log writer [pid 5835] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5836] newfstatat(AT_FDCWD, "./2/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5835] unlink("./2/cgroup.net") = 0 [pid 5836] unlink("./2/binderfs" [pid 5835] umount2("./2/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5836] <... unlink resumed>) = 0 [pid 5836] umount2("./2/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5835] newfstatat(AT_FDCWD, "./2/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5835] unlink("./2/binderfs") = 0 [pid 5835] umount2("./2/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5833] getdents64(4, 0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 5898] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [ 85.912432][ T5895] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 85.925123][ T5893] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 85.937387][ T5895] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 85.949090][ T5893] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5833] close(4) = 0 [pid 5833] rmdir("./2/file2") = 0 [ 85.961108][ T5891] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 85.972550][ T5891] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 85.983733][ T5895] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 85.997485][ T5891] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5833] getdents64(3, 0x55555fa3d730 /* 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 [ 86.000164][ T5895] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 86.010749][ T5891] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 86.030758][ T5893] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 86.044616][ T5891] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5833] close(3 [pid 5899] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 5833] <... close resumed>) = 0 [pid 5899] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5898] close(3 [pid 5899] <... futex resumed>) = 0 [pid 5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5899] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5898] <... close resumed>) = 0 [ 86.055731][ T5900] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 86.064074][ T5895] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 86.066716][ T5893] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 86.088493][ T5895] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 86.088526][ T5891] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 ./strace-static-x86_64: Process 5901 attached [pid 5898] close(4 [pid 5901] set_robust_list(0x55555fa3c6a0, 24 [pid 5898] <... close resumed>) = 0 [pid 5833] <... clone resumed>, child_tidptr=0x55555fa3c690) = 10 [pid 5901] <... set_robust_list resumed>) = 0 [pid 5898] close(5 [pid 5901] chdir("./3" [pid 5898] <... close resumed>) = 0 [pid 5901] <... chdir resumed>) = 0 [pid 5898] close(6 [pid 5901] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5898] <... close resumed>) = 0 [pid 5901] <... prctl resumed>) = 0 [pid 5898] close(7 [pid 5901] setpgid(0, 0 [pid 5898] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5901] <... setpgid resumed>) = 0 [pid 5898] close(8 [pid 5901] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 5898] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5901] <... symlink resumed>) = 0 [pid 5898] close(9 [pid 5901] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 5898] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5901] <... symlink resumed>) = 0 [pid 5898] close(10 [pid 5901] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 5898] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5901] <... symlink resumed>) = 0 [pid 5898] close(11 [pid 5901] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5898] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5901] <... openat resumed>) = 3 [pid 5898] close(12 [pid 5901] write(3, "1000", 4executing program [pid 5898] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5901] <... write resumed>) = 4 [pid 5898] close(13) = -1 EBADF (Bad file descriptor) [pid 5898] close(14) = -1 EBADF (Bad file descriptor) [pid 5898] close(15) = -1 EBADF (Bad file descriptor) [pid 5898] close(16 [pid 5901] close(3 [pid 5898] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5901] <... close resumed>) = 0 [pid 5898] close(17) = -1 EBADF (Bad file descriptor) [pid 5898] close(18 [pid 5901] symlink("/dev/binderfs", "./binderfs" [pid 5898] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5898] close(19 [pid 5901] <... symlink resumed>) = 0 [pid 5898] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5898] close(20) = -1 EBADF (Bad file descriptor) [pid 5898] close(21) = -1 EBADF (Bad file descriptor) [pid 5898] close(22) = -1 EBADF (Bad file descriptor) [pid 5898] close(23 [pid 5901] write(1, "executing program\n", 18 [pid 5898] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5898] close(24 [pid 5901] <... write resumed>) = 18 [pid 5898] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5901] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5898] close(25) = -1 EBADF (Bad file descriptor) [pid 5898] close(26 [pid 5901] <... futex resumed>) = 0 [pid 5898] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5901] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, [pid 5898] close(27 [pid 5901] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5898] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5901] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5898] close(28 [pid 5901] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5898] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5901] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5898] close(29 [pid 5901] <... mmap resumed>) = 0x7f0d6adff000 [pid 5898] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5898] exit_group(0 [pid 5901] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE [pid 5899] <... futex resumed>) = ? [pid 5898] <... exit_group resumed>) = ? [pid 5901] <... mprotect resumed>) = 0 [pid 5899] +++ exited with 0 +++ [ 86.112485][ T5893] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 86.124663][ T5891] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 86.125187][ T5895] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 86.136084][ T5891] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5901] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5901] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0}./strace-static-x86_64: Process 5902 attached [pid 5902] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 5901] <... clone3 resumed> => {parent_tid=[11]}, 88) = 11 [pid 5902] <... rseq resumed>) = 0 [pid 5901] rt_sigprocmask(SIG_SETMASK, [], [pid 5902] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 5901] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5902] <... set_robust_list resumed>) = 0 [pid 5901] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5902] rt_sigprocmask(SIG_SETMASK, [], [pid 5901] <... futex resumed>) = 0 [pid 5902] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5901] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5902] memfd_create("syzkaller", 0) = 3 [pid 5902] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 [pid 5902] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5898] +++ exited with 0 +++ [pid 5834] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [pid 5834] umount2("./3", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5834] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5834] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 5834] getdents64(3, 0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 5834] umount2("./3/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5834] newfstatat(AT_FDCWD, "./3/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5834] unlink("./3/cgroup") = 0 [pid 5834] umount2("./3/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5834] newfstatat(AT_FDCWD, "./3/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5834] unlink("./3/cgroup.cpu") = 0 [pid 5834] umount2("./3/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5834] newfstatat(AT_FDCWD, "./3/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5834] unlink("./3/cgroup.net") = 0 [pid 5834] umount2("./3/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5834] newfstatat(AT_FDCWD, "./3/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5834] unlink("./3/binderfs") = 0 [ 86.156104][ T5899] syz-executor138 (5899) used greatest stack depth: 16888 bytes left [ 86.166836][ T5893] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 86.178777][ T5893] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 86.190538][ T5891] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 86.199899][ T5895] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5834] umount2("./3/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5902] <... write resumed>) = 1048576 [pid 5902] munmap(0x7f0d62800000, 138412032) = 0 [pid 5902] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [ 86.202154][ T5893] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 86.213644][ T5895] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 86.222877][ T5891] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 86.237089][ T5902] loop0: detected capacity change from 0 to 2048 [ 86.244818][ T5893] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5902] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5902] close(3) = 0 [pid 5902] close(4) = 0 [pid 5902] mkdir("./file2", 0777) = 0 [ 86.251589][ T5900] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 86.262085][ T5891] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 86.273369][ T5895] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 86.296067][ T5893] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 86.307469][ T5900] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 86.307639][ T5893] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 86.318679][ T5891] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 86.329362][ T5902] NILFS (loop0): broken superblock, retrying with spare superblock (blocksize = 1024) [ 86.331861][ T5895] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 86.345813][ T5893] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 86.356259][ T5895] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 86.363343][ T5891] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 86.377209][ T5838] udevd[5838]: incorrect nilfs2 checksum on /dev/loop0 [ 86.382912][ T5893] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5902] mount("/dev/loop0", "./file2", "nilfs2", MS_SYNCHRONOUS, "") = 0 [ 86.393389][ T5900] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 86.422519][ T5891] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 86.424144][ T5903] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 86.434291][ T5893] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 86.449952][ T5895] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5902] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY) = 3 [pid 5902] chdir("./file2") = 0 [pid 5902] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5902] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5901] <... futex resumed>) = 0 [pid 5902] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5901] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5902] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5901] <... futex resumed>) = 0 [pid 5902] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 5901] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5902] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 5902] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5901] <... futex resumed>) = 0 [pid 5902] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5901] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5902] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5901] <... futex resumed>) = 0 [pid 5902] openat(AT_FDCWD, "/dev/cuse", O_RDWR [ 86.465489][ T5900] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 86.476986][ T5900] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 86.478006][ T5891] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 86.488291][ T5895] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5901] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5902] <... openat resumed>) = 4 [pid 5902] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5901] <... futex resumed>) = 0 [pid 5902] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5901] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5902] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5901] <... futex resumed>) = 0 [pid 5902] read(-1, [pid 5901] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5902] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 5902] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5901] <... futex resumed>) = 0 [pid 5902] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5901] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5902] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5901] <... futex resumed>) = 0 [pid 5902] memfd_create("syzkaller", 0 [pid 5901] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5902] <... memfd_create resumed>) = 5 [pid 5902] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 [pid 5902] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5902] munmap(0x7f0d62800000, 138412032) = 0 [pid 5902] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5902] close(5) = 0 [ 86.509501][ T5900] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 86.520719][ T5893] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 86.521728][ T5895] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 86.542831][ T5900] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 86.554124][ T5900] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5902] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5901] <... futex resumed>) = 0 [pid 5902] fsync(-1 [pid 5901] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5902] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 5901] <... futex resumed>) = 0 [pid 5902] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5901] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5902] <... futex resumed>) = 0 [pid 5901] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5902] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5901] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5902] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5901] <... futex resumed>) = 0 [pid 5902] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5901] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5902] <... openat resumed>) = 5 [pid 5902] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5901] <... futex resumed>) = 0 [pid 5902] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 5901] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 86.555753][ T5835] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 86.566678][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 86.576541][ T5835] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 86.586255][ T5900] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 86.607661][ T5836] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 86.608946][ T5835] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 86.618544][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 86.639857][ T5836] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 86.640750][ T5903] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 86.650959][ T5836] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 86.661981][ T5900] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 86.672192][ T5836] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 86.693302][ T5836] NILFS (loop2): disposed unprocessed dirty file(s) when stopping log writer [ 86.702930][ T5835] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5901] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5902] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 5901] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5901] futex(0x7f0d6aef46dc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5902] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5901] <... futex resumed>) = 0 [pid 5902] <... futex resumed>) = 0 [pid 5902] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5901] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0d6adde000 [pid 5901] mprotect(0x7f0d6addf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5901] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5901] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6adfe990, parent_tid=0x7f0d6adfe990, exit_signal=0, stack=0x7f0d6adde000, stack_size=0x20300, tls=0x7f0d6adfe6c0} => {parent_tid=[12]}, 88) = 12 [pid 5901] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5901] futex(0x7f0d6aef46d8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5901] futex(0x7f0d6aef46dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5904 attached [pid 5904] rseq(0x7f0d6adfefe0, 0x20, 0, 0x53053053) = 0 [pid 5904] set_robust_list(0x7f0d6adfe9a0, 24) = 0 [pid 5904] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5904] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000) = 6 [pid 5904] futex(0x7f0d6aef46dc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5901] <... futex resumed>) = 0 [pid 5904] futex(0x7f0d6aef46d8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5901] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5902] <... futex resumed>) = 0 [pid 5901] <... futex resumed>) = 1 [pid 5902] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [ 86.718145][ T5900] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 86.720830][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 86.730152][ T5900] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 86.739274][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 86.760369][ T5837] NILFS (loop4): disposed unprocessed dirty file(s) when stopping log writer [ 86.770466][ T5835] NILFS (loop3): disposed unprocessed dirty file(s) when stopping log writer [ 86.789646][ T5900] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5901] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 5837] <... umount2 resumed>) = 0 [pid 5837] umount2("./2/file2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5837] newfstatat(AT_FDCWD, "./2/file2", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5837] umount2("./2/file2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5837] openat(AT_FDCWD, "./2/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5837] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 5837] getdents64(4, 0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 5837] getdents64(4, 0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 5837] close(4) = 0 [pid 5837] rmdir("./2/file2") = 0 [pid 5837] getdents64(3, 0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 5837] close(3) = 0 [pid 5837] rmdir("./2") = 0 [pid 5837] mkdir("./3", 0777) = 0 [pid 5837] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5837] ioctl(3, LOOP_CLR_FD) = 0 [pid 5837] close(3) = 0 [pid 5837] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5905 attached [pid 5905] set_robust_list(0x55555fa3c6a0, 24 [pid 5837] <... clone resumed>, child_tidptr=0x55555fa3c690) = 8 [pid 5905] <... set_robust_list resumed>) = 0 [pid 5905] chdir("./3") = 0 [pid 5905] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5905] setpgid(0, 0) = 0 [pid 5905] symlink("/syzcgroup/unified/syz4", "./cgroup") = 0 [pid 5905] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu") = 0 [pid 5905] symlink("/syzcgroup/net/syz4", "./cgroup.net") = 0 [pid 5905] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5905] write(3, "1000", 4) = 4 [pid 5905] close(3) = 0 [pid 5905] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5905] write(1, "executing program\n", 18) = 18 [pid 5905] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5905] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, NULL, 8) = 0 [pid 5905] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5905] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0d6adff000 [pid 5905] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5905] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5905] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0}./strace-static-x86_64: Process 5906 attached [pid 5906] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 5905] <... clone3 resumed> => {parent_tid=[9]}, 88) = 9 [pid 5906] <... rseq resumed>) = 0 [pid 5905] rt_sigprocmask(SIG_SETMASK, [], [pid 5906] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 5905] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5906] <... set_robust_list resumed>) = 0 [pid 5905] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5906] rt_sigprocmask(SIG_SETMASK, [], [pid 5905] <... futex resumed>) = 0 [pid 5906] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5905] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5906] memfd_create("syzkaller", 0) = 3 [pid 5906] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 [pid 5906] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576 [pid 5906] munmap(0x7f0d62800000, 138412032) = 0 [pid 5906] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [ 86.810450][ T5900] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 86.826553][ T5900] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 86.838952][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 86.886639][ T5906] loop4: detected capacity change from 0 to 2048 [ 86.896710][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 86.909563][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 86.920379][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5906] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5836] <... umount2 resumed>) = 0 [pid 5906] close(3 [pid 5902] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 5836] umount2("./2/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5835] <... umount2 resumed>) = 0 [pid 5902] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5906] <... close resumed>) = 0 [pid 5902] <... futex resumed>) = 0 [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5835] umount2("./2/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5902] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5906] close(4 [pid 5836] newfstatat(AT_FDCWD, "./2/file2", [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5901] close(3 [pid 5906] <... close resumed>) = 0 [pid 5901] <... close resumed>) = 0 [pid 5836] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5835] newfstatat(AT_FDCWD, "./2/file2", [pid 5901] close(4 [pid 5906] mkdir("./file2", 0777 [pid 5901] <... close resumed>) = 0 [pid 5836] umount2("./2/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5835] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5901] close(5 [pid 5906] <... mkdir resumed>) = 0 [pid 5901] <... close resumed>) = 0 [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5835] umount2("./2/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5906] mount("/dev/loop4", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 5901] close(6 [pid 5836] openat(AT_FDCWD, "./2/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5901] <... close resumed>) = 0 [pid 5836] <... openat resumed>) = 4 [pid 5835] openat(AT_FDCWD, "./2/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5836] newfstatat(4, "", [pid 5835] <... openat resumed>) = 4 [pid 5836] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 5835] newfstatat(4, "", [pid 5836] getdents64(4, [pid 5835] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 5836] <... getdents64 resumed>0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 5835] getdents64(4, [pid 5901] close(7 [pid 5836] getdents64(4, [pid 5835] <... getdents64 resumed>0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 5836] <... getdents64 resumed>0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 5835] getdents64(4, [pid 5836] close(4 [pid 5835] <... getdents64 resumed>0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 5836] <... close resumed>) = 0 [pid 5835] close(4 [pid 5836] rmdir("./2/file2" [pid 5835] <... close resumed>) = 0 [pid 5836] <... rmdir resumed>) = 0 [pid 5835] rmdir("./2/file2" [pid 5836] getdents64(3, [pid 5835] <... rmdir resumed>) = 0 [pid 5836] <... getdents64 resumed>0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 5835] getdents64(3, [pid 5901] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] close(3 [pid 5835] <... getdents64 resumed>0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 5901] close(8 [pid 5836] <... close resumed>) = 0 [pid 5835] close(3 [pid 5836] rmdir("./2" [pid 5835] <... close resumed>) = 0 [pid 5836] <... rmdir resumed>) = 0 [ 86.931277][ T5834] NILFS (loop1): disposed unprocessed dirty file(s) when stopping log writer [ 86.945383][ T5903] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 86.967789][ T5838] udevd[5838]: incorrect nilfs2 checksum on /dev/loop4 [pid 5835] rmdir("./2" [pid 5836] mkdir("./3", 0777 [pid 5835] <... rmdir resumed>) = 0 [pid 5836] <... mkdir resumed>) = 0 [pid 5835] mkdir("./3", 0777 [pid 5836] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5835] <... mkdir resumed>) = 0 [pid 5836] <... openat resumed>) = 3 [pid 5835] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5836] ioctl(3, LOOP_CLR_FD [pid 5835] <... openat resumed>) = 3 [pid 5836] <... ioctl resumed>) = 0 [pid 5835] ioctl(3, LOOP_CLR_FD [pid 5836] close(3 [pid 5835] <... ioctl resumed>) = 0 [pid 5901] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] <... close resumed>) = 0 [pid 5835] close(3 [pid 5834] <... umount2 resumed>) = 0 [pid 5901] close(9) = -1 EBADF (Bad file descriptor) [pid 5836] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5834] umount2("./3/file2", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5907 attached [pid 5901] close(10 [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5901] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5834] newfstatat(AT_FDCWD, "./3/file2", [pid 5901] close(11 [pid 5907] set_robust_list(0x55555fa3c6a0, 24 [pid 5901] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] <... clone resumed>, child_tidptr=0x55555fa3c690) = 9 [pid 5835] <... close resumed>) = 0 [pid 5834] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5901] close(12 [pid 5907] <... set_robust_list resumed>) = 0 [pid 5901] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5835] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5901] close(13./strace-static-x86_64: Process 5908 attached [pid 5907] chdir("./3" [pid 5901] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5901] close(14 [pid 5834] umount2("./3/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5901] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5908] set_robust_list(0x55555fa3c6a0, 24 [pid 5907] <... chdir resumed>) = 0 [pid 5901] close(15 [pid 5835] <... clone resumed>, child_tidptr=0x55555fa3c690) = 9 [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5901] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5908] <... set_robust_list resumed>) = 0 [pid 5907] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5901] close(16 [pid 5834] openat(AT_FDCWD, "./3/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5908] chdir("./3" [pid 5907] <... prctl resumed>) = 0 [pid 5901] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5834] <... openat resumed>) = 4 [pid 5908] <... chdir resumed>) = 0 [pid 5907] setpgid(0, 0 [pid 5901] close(17 [pid 5834] newfstatat(4, "", [pid 5901] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5908] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5907] <... setpgid resumed>) = 0 [pid 5901] close(18 [pid 5834] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 5901] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5834] getdents64(4, [pid 5901] close(19 [pid 5834] <... getdents64 resumed>0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 5901] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5834] getdents64(4, [pid 5901] close(20 [pid 5834] <... getdents64 resumed>0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 5901] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5834] close(4 [pid 5901] close(21 [pid 5834] <... close resumed>) = 0 [pid 5901] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5908] <... prctl resumed>) = 0 [pid 5907] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5901] close(22 [pid 5834] rmdir("./3/file2" [pid 5908] setpgid(0, 0 [pid 5907] <... symlink resumed>) = 0 [pid 5901] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5834] <... rmdir resumed>) = 0 [ 86.985500][ T5906] NILFS (loop4): broken superblock, retrying with spare superblock (blocksize = 1024) [pid 5908] <... setpgid resumed>) = 0 [pid 5907] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5908] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5907] <... symlink resumed>) = 0 [pid 5908] <... symlink resumed>) = 0 [pid 5907] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5908] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5907] <... symlink resumed>) = 0 [pid 5908] <... symlink resumed>) = 0 [pid 5907] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5908] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5907] <... openat resumed>) = 3 [pid 5901] close(23 [pid 5834] getdents64(3, [pid 5901] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5834] <... getdents64 resumed>0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 5901] close(24 [pid 5834] close(3 [pid 5901] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5901] close(25 [pid 5834] <... close resumed>) = 0 [pid 5901] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5901] close(26 [pid 5834] rmdir("./3" [pid 5901] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5908] <... symlink resumed>) = 0 [pid 5907] write(3, "1000", 4 [pid 5901] close(27 [pid 5834] <... rmdir resumed>) = 0 [pid 5901] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5908] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5907] <... write resumed>) = 4 [pid 5901] close(28 [pid 5834] mkdir("./4", 0777 [pid 5908] <... openat resumed>) = 3 [pid 5907] close(3 [pid 5901] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5908] write(3, "1000", 4 [pid 5907] <... close resumed>) = 0 [pid 5901] close(29 [pid 5834] <... mkdir resumed>) = 0 [pid 5901] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5908] <... write resumed>) = 4 [pid 5907] symlink("/dev/binderfs", "./binderfs" [pid 5901] exit_group(0 [pid 5834] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5902] <... futex resumed>) = ? [pid 5901] <... exit_group resumed>) = ? [pid 5904] <... futex resumed>) = ? [pid 5908] close(3 [pid 5907] <... symlink resumed>) = 0 [pid 5904] +++ exited with 0 +++ [pid 5902] +++ exited with 0 +++ [pid 5834] <... openat resumed>) = 3 executing program [pid 5908] <... close resumed>) = 0 [pid 5907] write(1, "executing program\n", 18 [pid 5908] symlink("/dev/binderfs", "./binderfs" [pid 5907] <... write resumed>) = 18 [pid 5908] <... symlink resumed>) = 0 [pid 5907] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5901] +++ exited with 0 +++ [pid 5834] ioctl(3, LOOP_CLR_FD [pid 5908] write(1, "executing program\n", 18 [pid 5907] <... futex resumed>) = 0 [pid 5834] <... ioctl resumed>) = 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=21 /* 0.21 s */} --- [pid 5834] close(3 [pid 5833] restart_syscall(<... resuming interrupted clone ...>executing program [pid 5908] <... write resumed>) = 18 [pid 5907] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, [pid 5908] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5907] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5833] <... restart_syscall resumed>) = 0 [pid 5908] <... futex resumed>) = 0 [pid 5907] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5908] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, [pid 5907] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5908] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5907] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5908] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5907] <... mmap resumed>) = 0x7f0d6adff000 [pid 5833] umount2("./3", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5908] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5907] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE [pid 5908] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5907] <... mprotect resumed>) = 0 [pid 5908] <... mmap resumed>) = 0x7f0d6adff000 [pid 5907] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5908] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE [pid 5907] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5908] <... mprotect resumed>) = 0 [pid 5907] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0}./strace-static-x86_64: Process 5909 attached [pid 5908] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5909] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 5908] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5907] <... clone3 resumed> => {parent_tid=[10]}, 88) = 10 [pid 5909] <... rseq resumed>) = 0 [pid 5908] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0} [pid 5907] rt_sigprocmask(SIG_SETMASK, [], ./strace-static-x86_64: Process 5910 attached [pid 5909] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 5907] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5910] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 5909] <... set_robust_list resumed>) = 0 [pid 5908] <... clone3 resumed> => {parent_tid=[10]}, 88) = 10 [pid 5907] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5910] <... rseq resumed>) = 0 [pid 5909] rt_sigprocmask(SIG_SETMASK, [], [pid 5908] rt_sigprocmask(SIG_SETMASK, [], [pid 5907] <... futex resumed>) = 0 [pid 5910] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 5909] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5908] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5907] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5910] <... set_robust_list resumed>) = 0 [pid 5909] memfd_create("syzkaller", 0 [pid 5908] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5910] rt_sigprocmask(SIG_SETMASK, [], [pid 5909] <... memfd_create resumed>) = 3 [pid 5908] <... futex resumed>) = 0 [pid 5910] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5909] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5908] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5910] memfd_create("syzkaller", 0 [pid 5909] <... mmap resumed>) = 0x7f0d62800000 [ 87.027982][ T5838] udevd[5838]: incorrect nilfs2 checksum on /dev/loop4 [pid 5833] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5910] <... memfd_create resumed>) = 3 [pid 5909] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5834] <... close resumed>) = 0 [pid 5833] <... openat resumed>) = 3 [pid 5910] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5909] <... write resumed>) = 1048576 [pid 5833] newfstatat(3, "", [pid 5910] <... mmap resumed>) = 0x7f0d62800000 [pid 5909] munmap(0x7f0d62800000, 138412032 [pid 5833] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 5910] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5909] <... munmap resumed>) = 0 [pid 5906] <... mount resumed>) = 0 [pid 5834] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5833] getdents64(3, [pid 5906] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5833] <... getdents64 resumed>0x55555fa3d730 /* 7 entries */, 32768) = 208 ./strace-static-x86_64: Process 5912 attached [pid 5910] <... write resumed>) = 1048576 [pid 5909] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5906] <... openat resumed>) = 3 [pid 5833] umount2("./3/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5910] munmap(0x7f0d62800000, 138412032 [pid 5909] <... openat resumed>) = 4 [pid 5910] <... munmap resumed>) = 0 [pid 5909] ioctl(4, LOOP_SET_FD, 3 [pid 5912] set_robust_list(0x55555fa3c6a0, 24 [pid 5910] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5909] <... ioctl resumed>) = 0 [pid 5906] chdir("./file2" [pid 5834] <... clone resumed>, child_tidptr=0x55555fa3c690) = 12 [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5912] <... set_robust_list resumed>) = 0 [pid 5910] <... openat resumed>) = 4 [pid 5909] close(3 [ 87.082430][ T5911] NILFS (loop4): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 87.119756][ T5909] loop2: detected capacity change from 0 to 2048 [pid 5833] newfstatat(AT_FDCWD, "./3/cgroup", [pid 5912] chdir("./4" [pid 5910] ioctl(4, LOOP_SET_FD, 3 [pid 5909] <... close resumed>) = 0 [pid 5906] <... chdir resumed>) = 0 [pid 5833] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5912] <... chdir resumed>) = 0 [pid 5833] unlink("./3/cgroup" [pid 5912] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5910] <... ioctl resumed>) = 0 [pid 5909] close(4 [pid 5906] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5833] <... unlink resumed>) = 0 [pid 5912] setpgid(0, 0) = 0 [pid 5833] umount2("./3/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5912] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 5910] close(3 [pid 5909] <... close resumed>) = 0 [pid 5906] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5910] <... close resumed>) = 0 [pid 5909] mkdir("./file2", 0777 [pid 5906] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5912] <... symlink resumed>) = 0 [pid 5910] close(4 [pid 5909] <... mkdir resumed>) = 0 [pid 5906] <... futex resumed>) = 1 [pid 5905] <... futex resumed>) = 0 [pid 5833] newfstatat(AT_FDCWD, "./3/cgroup.cpu", [pid 5910] <... close resumed>) = 0 [ 87.132848][ T5910] loop3: detected capacity change from 0 to 2048 [ 87.155297][ T5855] udevd[5855]: incorrect nilfs2 checksum on /dev/loop2 [ 87.166345][ T5838] udevd[5838]: incorrect nilfs2 checksum on /dev/loop3 [pid 5909] mount("/dev/loop2", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 5912] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 5910] mkdir("./file2", 0777 [pid 5906] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 5905] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5833] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5910] <... mkdir resumed>) = 0 [pid 5833] unlink("./3/cgroup.cpu" [pid 5910] mount("/dev/loop3", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 5906] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 5905] <... futex resumed>) = 0 [pid 5833] <... unlink resumed>) = 0 [pid 5833] umount2("./3/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5906] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5905] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5833] newfstatat(AT_FDCWD, "./3/cgroup.net", [pid 5906] <... futex resumed>) = 0 [pid 5905] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5833] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./3/cgroup.net" [pid 5906] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5905] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5912] <... symlink resumed>) = 0 [pid 5906] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5905] <... futex resumed>) = 0 [pid 5833] <... unlink resumed>) = 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 5912] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 5833] unlink("./3/binderfs" [pid 5912] <... symlink resumed>) = 0 [pid 5833] <... unlink resumed>) = 0 [pid 5833] umount2("./3/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5912] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5906] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 5905] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5912] <... openat resumed>) = 3 [pid 5906] <... openat resumed>) = 4 [pid 5906] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5905] <... futex resumed>) = 0 [pid 5906] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5905] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5906] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5906] read(-1, [pid 5905] <... futex resumed>) = 0 [pid 5906] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 5905] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5906] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5905] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5906] <... futex resumed>) = 0 [pid 5905] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5906] memfd_create("syzkaller", 0 [pid 5905] <... futex resumed>) = 0 [ 87.174569][ T5909] NILFS (loop2): broken superblock, retrying with spare superblock (blocksize = 1024) [ 87.195779][ T5910] NILFS (loop3): broken superblock, retrying with spare superblock (blocksize = 1024) [ 87.210289][ T5903] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5912] write(3, "1000", 4 [pid 5910] <... mount resumed>) = 0 [pid 5906] <... memfd_create resumed>) = 5 [pid 5905] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5912] <... write resumed>) = 4 [pid 5910] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5912] close(3 [pid 5910] <... openat resumed>) = 3 [pid 5912] <... close resumed>) = 0 [pid 5910] chdir("./file2" [pid 5912] symlink("/dev/binderfs", "./binderfs" [pid 5910] <... chdir resumed>) = 0 [pid 5912] <... symlink resumed>) = 0 [pid 5910] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5912] write(1, "executing program\n", 18 [pid 5910] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5906] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5910] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5906] <... mmap resumed>) = 0x7f0d62800000 executing program [pid 5910] <... futex resumed>) = 1 [pid 5908] <... futex resumed>) = 0 [pid 5910] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5908] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5910] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5908] <... futex resumed>) = 0 [pid 5912] <... write resumed>) = 18 [pid 5910] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 5908] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5912] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5910] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 5906] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5912] <... futex resumed>) = 0 [pid 5910] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5912] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, [pid 5910] <... futex resumed>) = 1 [pid 5908] <... futex resumed>) = 0 [pid 5912] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5910] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5908] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5912] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5910] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5908] <... futex resumed>) = 0 [pid 5912] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5910] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 5908] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5912] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5910] <... openat resumed>) = 4 [pid 5909] <... mount resumed>) = 0 [pid 5912] <... mmap resumed>) = 0x7f0d6adff000 [pid 5910] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5909] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5912] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE [pid 5910] <... futex resumed>) = 1 [pid 5909] <... openat resumed>) = 3 [pid 5908] <... futex resumed>) = 0 [ 87.231503][ T5913] NILFS (loop3): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 87.239624][ T5914] NILFS (loop2): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 87.254995][ T5903] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5906] <... write resumed>) = 524288 [pid 5912] <... mprotect resumed>) = 0 [pid 5910] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5909] chdir("./file2" [pid 5908] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5912] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5910] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5909] <... chdir resumed>) = 0 [pid 5908] <... futex resumed>) = 0 [pid 5906] munmap(0x7f0d62800000, 138412032 [pid 5912] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5910] read(-1, [pid 5909] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5908] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5912] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0} [pid 5910] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 5909] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5906] <... munmap resumed>) = 0 ./strace-static-x86_64: Process 5915 attached [pid 5910] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5906] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5910] <... futex resumed>) = 1 [pid 5908] <... futex resumed>) = 0 [pid 5910] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5908] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5910] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5908] <... futex resumed>) = 0 [pid 5915] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 5912] <... clone3 resumed> => {parent_tid=[13]}, 88) = 13 [pid 5910] memfd_create("syzkaller", 0 [pid 5908] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5906] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5915] <... rseq resumed>) = 0 [pid 5912] rt_sigprocmask(SIG_SETMASK, [], [pid 5910] <... memfd_create resumed>) = 5 [pid 5909] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5906] close(5 [pid 5915] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 5912] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5910] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5909] <... futex resumed>) = 1 [pid 5907] <... futex resumed>) = 0 [pid 5915] <... set_robust_list resumed>) = 0 [pid 5912] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5910] <... mmap resumed>) = 0x7f0d62800000 [pid 5909] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5915] rt_sigprocmask(SIG_SETMASK, [], [pid 5912] <... futex resumed>) = 0 [pid 5910] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5907] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5906] <... close resumed>) = 0 [pid 5915] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5912] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5910] <... write resumed>) = 524288 [pid 5909] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5907] <... futex resumed>) = 0 [pid 5906] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5915] memfd_create("syzkaller", 0 [pid 5909] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 5907] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5906] <... futex resumed>) = 1 [pid 5905] <... futex resumed>) = 0 [pid 5915] <... memfd_create resumed>) = 3 [pid 5909] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 5915] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5909] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5915] <... mmap resumed>) = 0x7f0d62800000 [pid 5909] <... futex resumed>) = 1 [pid 5907] <... futex resumed>) = 0 [pid 5909] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5907] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5906] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5905] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5915] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5909] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5907] <... futex resumed>) = 0 [pid 5906] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5905] <... futex resumed>) = 0 [pid 5906] fsync(-1 [pid 5905] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5906] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 5906] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5906] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5905] <... futex resumed>) = 0 [pid 5909] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 5907] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5906] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [ 87.288516][ T5903] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 87.305849][ T5903] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5905] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5906] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5905] <... futex resumed>) = 0 [pid 5909] <... openat resumed>) = 4 [pid 5909] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5910] munmap(0x7f0d62800000, 138412032 [pid 5909] <... futex resumed>) = 1 [pid 5907] <... futex resumed>) = 0 [pid 5910] <... munmap resumed>) = 0 [pid 5909] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5907] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5906] <... openat resumed>) = 5 [pid 5905] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5909] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5907] <... futex resumed>) = 0 [pid 5909] read(-1, [pid 5907] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5909] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 5909] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5907] <... futex resumed>) = 0 [pid 5909] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5907] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5909] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5907] <... futex resumed>) = 0 [pid 5910] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5909] memfd_create("syzkaller", 0 [pid 5907] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5910] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5909] <... memfd_create resumed>) = 5 [pid 5906] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5905] <... futex resumed>) = 0 [pid 5905] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5905] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5909] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5906] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 5910] close(5) = 0 [pid 5909] <... mmap resumed>) = 0x7f0d62800000 [pid 5909] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5910] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5915] <... write resumed>) = 1048576 [pid 5909] <... write resumed>) = 524288 [pid 5908] <... futex resumed>) = 0 [pid 5909] munmap(0x7f0d62800000, 138412032 [pid 5910] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5908] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5910] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5908] <... futex resumed>) = 0 [pid 5910] fsync(-1 [pid 5908] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5910] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [ 87.352980][ T5903] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 87.380262][ T5903] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5910] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5909] <... munmap resumed>) = 0 [pid 5908] <... futex resumed>) = 0 [pid 5909] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5910] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5908] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5909] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5910] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5908] <... futex resumed>) = 0 [pid 5915] munmap(0x7f0d62800000, 138412032 [pid 5910] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5909] close(5 [pid 5908] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5915] <... munmap resumed>) = 0 [pid 5910] <... openat resumed>) = 5 [pid 5909] <... close resumed>) = 0 [pid 5915] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5910] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5909] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5915] <... openat resumed>) = 4 [pid 5910] <... futex resumed>) = 1 [pid 5909] <... futex resumed>) = 1 [pid 5908] <... futex resumed>) = 0 [pid 5907] <... futex resumed>) = 0 [pid 5909] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5907] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5909] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5907] <... futex resumed>) = 0 [pid 5909] fsync(-1 [pid 5907] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5909] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 5915] ioctl(4, LOOP_SET_FD, 3 [pid 5910] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 5908] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5908] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5915] <... ioctl resumed>) = 0 [pid 5909] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5906] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 5905] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5909] <... futex resumed>) = 1 [pid 5907] <... futex resumed>) = 0 [pid 5906] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5905] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5909] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5906] <... futex resumed>) = 0 [pid 5905] <... futex resumed>) = 0 [pid 5906] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 5905] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5915] close(3) = 0 [pid 5915] close(4) = 0 [pid 5915] mkdir("./file2", 0777) = 0 [pid 5909] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5907] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5906] <... openat resumed>) = 6 [pid 5915] mount("/dev/loop1", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 5906] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5909] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5907] <... futex resumed>) = 0 [pid 5906] <... futex resumed>) = 1 [pid 5905] <... futex resumed>) = 0 [ 87.396189][ T5911] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 87.417397][ T5915] loop1: detected capacity change from 0 to 2048 [ 87.419203][ T5913] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 87.425133][ T5903] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5909] <... openat resumed>) = 5 [pid 5907] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5906] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 5905] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5909] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5905] <... futex resumed>) = 0 [pid 5905] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5909] <... futex resumed>) = 0 [pid 5907] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5909] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5907] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5909] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5908] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5907] <... futex resumed>) = 0 [pid 5909] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 5907] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5908] futex(0x7f0d6aef46dc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5908] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0d6adde000 [pid 5908] mprotect(0x7f0d6addf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5908] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5908] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6adfe990, parent_tid=0x7f0d6adfe990, exit_signal=0, stack=0x7f0d6adde000, stack_size=0x20300, tls=0x7f0d6adfe6c0} => {parent_tid=[11]}, 88) = 11 [pid 5908] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5908] futex(0x7f0d6aef46d8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5908] futex(0x7f0d6aef46dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5910] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 5910] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 87.460060][ T5915] NILFS (loop1): broken superblock, retrying with spare superblock (blocksize = 1024) [ 87.480211][ T5903] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 87.494982][ T5914] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5910] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 5916 attached [pid 5905] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5916] rseq(0x7f0d6adfefe0, 0x20, 0, 0x53053053) = 0 [pid 5916] set_robust_list(0x7f0d6adfe9a0, 24) = 0 [pid 5915] <... mount resumed>) = 0 [pid 5916] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5916] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 5915] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY) = 3 [pid 5915] chdir("./file2") = 0 [pid 5915] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5915] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5912] <... futex resumed>) = 0 [pid 5915] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5912] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5915] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5912] <... futex resumed>) = 0 [pid 5915] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 5912] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5915] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 5915] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5912] <... futex resumed>) = 0 [pid 5916] <... openat resumed>) = 6 [pid 5916] futex(0x7f0d6aef46dc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5915] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5912] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5909] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 5907] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5916] <... futex resumed>) = 1 [pid 5909] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5908] <... futex resumed>) = 0 [pid 5916] futex(0x7f0d6aef46d8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5907] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5909] <... futex resumed>) = 0 [pid 5908] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5907] <... futex resumed>) = 0 [pid 5909] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 5907] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5915] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5912] <... futex resumed>) = 0 [pid 5910] <... futex resumed>) = 0 [pid 5908] <... futex resumed>) = 1 [pid 5915] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 5912] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5910] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 5915] <... openat resumed>) = 4 [pid 5908] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5915] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5909] <... openat resumed>) = 6 [pid 5915] <... futex resumed>) = 1 [pid 5912] <... futex resumed>) = 0 [pid 5909] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5915] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5912] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5909] <... futex resumed>) = 1 [pid 5907] <... futex resumed>) = 0 [pid 5915] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5912] <... futex resumed>) = 0 [pid 5909] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 5907] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5915] read(-1, [pid 5912] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5907] <... futex resumed>) = 0 [pid 5915] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 5915] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5912] <... futex resumed>) = 0 [pid 5915] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5912] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5915] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5912] <... futex resumed>) = 0 [pid 5915] memfd_create("syzkaller", 0 [pid 5912] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5915] <... memfd_create resumed>) = 5 [pid 5915] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 [ 87.506818][ T5917] NILFS (loop1): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 87.531124][ T5903] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5915] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5907] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5915] <... write resumed>) = 524288 [pid 5915] munmap(0x7f0d62800000, 138412032) = 0 [pid 5915] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5915] close(5) = 0 [pid 5908] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5915] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5912] <... futex resumed>) = 0 [pid 5915] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5912] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5915] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5912] <... futex resumed>) = 0 [pid 5915] fsync(-1 [pid 5912] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5915] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 5915] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5912] <... futex resumed>) = 0 [pid 5915] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5912] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5915] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5912] <... futex resumed>) = 0 [pid 5915] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5912] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5915] <... openat resumed>) = 5 [pid 5915] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5912] <... futex resumed>) = 0 [pid 5915] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 5912] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 87.583655][ T5903] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 87.617183][ T5903] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5912] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5907] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [ 87.636878][ T5903] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 87.637564][ T5917] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 87.665822][ T5903] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5912] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5912] futex(0x7f0d6aef46dc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5915] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 5912] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5915] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5912] <... mmap resumed>) = 0x7f0d6adde000 [pid 5915] <... futex resumed>) = 0 [pid 5912] mprotect(0x7f0d6addf000, 131072, PROT_READ|PROT_WRITE [pid 5915] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5912] <... mprotect resumed>) = 0 [pid 5912] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5912] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6adfe990, parent_tid=0x7f0d6adfe990, exit_signal=0, stack=0x7f0d6adde000, stack_size=0x20300, tls=0x7f0d6adfe6c0}./strace-static-x86_64: Process 5918 attached [pid 5918] rseq(0x7f0d6adfefe0, 0x20, 0, 0x53053053 [pid 5912] <... clone3 resumed> => {parent_tid=[14]}, 88) = 14 [pid 5918] <... rseq resumed>) = 0 [pid 5912] rt_sigprocmask(SIG_SETMASK, [], [pid 5918] set_robust_list(0x7f0d6adfe9a0, 24 [pid 5912] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5918] <... set_robust_list resumed>) = 0 [pid 5912] futex(0x7f0d6aef46d8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5918] rt_sigprocmask(SIG_SETMASK, [], [pid 5912] <... futex resumed>) = 0 [pid 5918] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5912] futex(0x7f0d6aef46dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5918] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000) = 6 [pid 5918] futex(0x7f0d6aef46dc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5912] <... futex resumed>) = 0 [pid 5918] futex(0x7f0d6aef46d8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5912] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5915] <... futex resumed>) = 0 [pid 5912] <... futex resumed>) = 1 [ 87.689740][ T5903] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 87.725813][ T5903] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5915] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [ 87.748620][ T5833] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 87.770883][ T5833] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5912] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [ 87.803576][ T5833] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 87.836393][ T5833] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5906] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 5906] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5905] close(3 [pid 5906] <... futex resumed>) = 0 [pid 5905] <... close resumed>) = 0 [pid 5906] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5905] close(4) = 0 [pid 5905] close(5) = 0 [pid 5905] close(6) = 0 [pid 5905] close(7) = -1 EBADF (Bad file descriptor) [pid 5905] close(8) = -1 EBADF (Bad file descriptor) [ 87.870347][ T5833] NILFS (loop0): disposed unprocessed dirty file(s) when stopping log writer [ 87.880433][ T5911] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5905] close(9) = -1 EBADF (Bad file descriptor) [pid 5905] close(10) = -1 EBADF (Bad file descriptor) [pid 5905] close(11) = -1 EBADF (Bad file descriptor) [pid 5905] close(12) = -1 EBADF (Bad file descriptor) [pid 5905] close(13) = -1 EBADF (Bad file descriptor) [pid 5905] close(14) = -1 EBADF (Bad file descriptor) [pid 5905] close(15) = -1 EBADF (Bad file descriptor) [pid 5905] close(16) = -1 EBADF (Bad file descriptor) [pid 5905] close(17) = -1 EBADF (Bad file descriptor) [pid 5905] close(18) = -1 EBADF (Bad file descriptor) [pid 5905] close(19) = -1 EBADF (Bad file descriptor) [pid 5905] close(20) = -1 EBADF (Bad file descriptor) [pid 5905] close(21) = -1 EBADF (Bad file descriptor) [pid 5905] close(22) = -1 EBADF (Bad file descriptor) [pid 5905] close(23 [pid 5910] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 5905] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5833] <... umount2 resumed>) = 0 [pid 5910] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5905] close(24) = -1 EBADF (Bad file descriptor) [ 87.926149][ T5913] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5905] close(25) = -1 EBADF (Bad file descriptor) [pid 5905] close(26) = -1 EBADF (Bad file descriptor) [pid 5905] close(27) = -1 EBADF (Bad file descriptor) [pid 5905] close(28) = -1 EBADF (Bad file descriptor) [pid 5905] close(29) = -1 EBADF (Bad file descriptor) [pid 5905] exit_group(0) = ? [pid 5833] umount2("./3/file2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./3/file2", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] umount2("./3/file2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] openat(AT_FDCWD, "./3/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5910] <... futex resumed>) = 0 [pid 5908] close(3 [pid 5906] <... futex resumed>) = ? [pid 5833] <... openat resumed>) = 4 [pid 5910] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5833] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 5833] getdents64(4, 0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 5833] getdents64(4, 0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 5833] close(4) = 0 [pid 5906] +++ exited with 0 +++ [pid 5908] <... close resumed>) = 0 [pid 5905] +++ exited with 0 +++ [pid 5833] rmdir("./3/file2" [pid 5908] close(4 [pid 5837] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 5833] <... rmdir resumed>) = 0 [pid 5908] <... close resumed>) = 0 [pid 5837] restart_syscall(<... resuming interrupted clone ...> [pid 5833] getdents64(3, [pid 5908] close(5 [pid 5833] <... getdents64 resumed>0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 5908] <... close resumed>) = 0 [pid 5833] close(3 [pid 5908] close(6 [pid 5833] <... close resumed>) = 0 [pid 5908] <... close resumed>) = 0 [pid 5837] <... restart_syscall resumed>) = 0 [pid 5833] rmdir("./3" [pid 5908] close(7 [pid 5833] <... rmdir resumed>) = 0 [pid 5908] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5833] mkdir("./4", 0777 [pid 5908] close(8 [pid 5837] umount2("./3", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5833] <... mkdir resumed>) = 0 [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5908] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5837] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5908] close(9) = -1 EBADF (Bad file descriptor) [pid 5837] <... openat resumed>) = 3 [pid 5833] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5908] close(10 [pid 5837] newfstatat(3, "", [pid 5833] <... openat resumed>) = 3 [pid 5908] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5837] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 5837] getdents64(3, [pid 5833] ioctl(3, LOOP_CLR_FD [pid 5837] <... getdents64 resumed>0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 5908] close(11 [pid 5833] <... ioctl resumed>) = 0 [pid 5908] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5837] umount2("./3/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5833] close(3 [pid 5909] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 5908] close(12 [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5833] <... close resumed>) = 0 [pid 5908] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5837] newfstatat(AT_FDCWD, "./3/cgroup", [pid 5908] close(13) = -1 EBADF (Bad file descriptor) [pid 5909] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5908] close(14 [pid 5909] <... futex resumed>) = 0 [pid 5908] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5909] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5908] close(15) = -1 EBADF (Bad file descriptor) [pid 5907] close(3 [pid 5837] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5908] close(16 [pid 5907] <... close resumed>) = 0 [pid 5908] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5837] unlink("./3/cgroup" [pid 5908] close(17 [pid 5907] close(4 [pid 5908] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5908] close(18 [pid 5907] <... close resumed>) = 0 [pid 5837] <... unlink resumed>) = 0 [pid 5908] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5907] close(5 [pid 5908] close(19 [pid 5907] <... close resumed>) = 0 [pid 5908] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5907] close(6 [pid 5908] close(20 [pid 5907] <... close resumed>) = 0 [pid 5908] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5907] close(7 [pid 5908] close(21 [pid 5907] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5908] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5907] close(8 [pid 5908] close(22 [pid 5907] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5908] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5907] close(9 [pid 5908] close(23 [pid 5907] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5908] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5907] close(10 [pid 5837] umount2("./3/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5908] close(24 [pid 5907] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5908] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5907] close(11 [pid 5908] close(25 [pid 5907] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5908] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5907] close(12 [pid 5908] close(26 [pid 5907] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5908] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5907] close(13 [pid 5908] close(27 [pid 5907] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5908] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5907] close(14 [pid 5908] close(28 [pid 5907] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5908] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5907] close(15 [pid 5908] close(29 [pid 5907] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5908] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5907] close(16 [pid 5908] exit_group(0 [pid 5907] <... close resumed>) = -1 EBADF (Bad file descriptor) [ 87.977912][ T5914] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5837] newfstatat(AT_FDCWD, "./3/cgroup.cpu", [pid 5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5916] <... futex resumed>) = ? [pid 5910] <... futex resumed>) = ? [pid 5908] <... exit_group resumed>) = ? [pid 5907] close(17 [pid 5837] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 ./strace-static-x86_64: Process 5919 attached [pid 5916] +++ exited with 0 +++ [pid 5919] set_robust_list(0x55555fa3c6a0, 24 [pid 5833] <... clone resumed>, child_tidptr=0x55555fa3c690) = 13 [pid 5919] <... set_robust_list resumed>) = 0 [pid 5919] chdir("./4" [pid 5910] +++ exited with 0 +++ [pid 5908] +++ exited with 0 +++ [pid 5907] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5919] <... chdir resumed>) = 0 [pid 5907] close(18 [pid 5837] unlink("./3/cgroup.cpu" [pid 5919] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5907] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5835] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [pid 5919] <... prctl resumed>) = 0 [pid 5837] <... unlink resumed>) = 0 [pid 5907] close(19 [pid 5835] umount2("./3", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5919] setpgid(0, 0) = 0 [pid 5919] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5919] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5907] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5837] umount2("./3/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5907] close(20 [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5835] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5907] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5919] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 5907] close(21 [pid 5837] newfstatat(AT_FDCWD, "./3/cgroup.net", [pid 5835] <... openat resumed>) = 3 [pid 5907] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5837] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5835] newfstatat(3, "", [pid 5907] close(22) = -1 EBADF (Bad file descriptor) [pid 5835] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 5907] close(23 [pid 5919] <... symlink resumed>) = 0 [pid 5907] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5835] getdents64(3, [pid 5907] close(24 [pid 5837] unlink("./3/cgroup.net" [pid 5907] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5835] <... getdents64 resumed>0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 5907] close(25 [pid 5835] umount2("./3/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5907] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5919] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5907] close(26 [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5907] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5835] newfstatat(AT_FDCWD, "./3/cgroup", [pid 5907] close(27 [pid 5919] <... openat resumed>) = 3 [pid 5907] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5835] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5907] close(28 [pid 5835] unlink("./3/cgroup" [pid 5907] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5919] write(3, "1000", 4 [pid 5907] close(29 [pid 5837] <... unlink resumed>) = 0 [pid 5835] <... unlink resumed>) = 0 [pid 5919] <... write resumed>) = 4 [pid 5907] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5837] umount2("./3/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5835] umount2("./3/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5919] close(3 [pid 5907] exit_group(0 [pid 5919] <... close resumed>) = 0 [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5907] <... exit_group resumed>) = ? [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5909] <... futex resumed>) = ? [pid 5909] +++ exited with 0 +++ [pid 5907] +++ exited with 0 +++ [pid 5837] newfstatat(AT_FDCWD, "./3/binderfs", [pid 5835] newfstatat(AT_FDCWD, "./3/cgroup.cpu", [pid 5836] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9, si_uid=0, si_status=0, si_utime=0, si_stime=23 /* 0.23 s */} --- [pid 5837] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5919] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5837] unlink("./3/binderfs" [pid 5835] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 executing program [pid 5919] write(1, "executing program\n", 18 [pid 5837] <... unlink resumed>) = 0 [pid 5835] unlink("./3/cgroup.cpu" [pid 5837] umount2("./3/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5919] <... write resumed>) = 18 [pid 5835] <... unlink resumed>) = 0 [pid 5835] umount2("./3/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5919] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5835] newfstatat(AT_FDCWD, "./3/cgroup.net", [pid 5919] <... futex resumed>) = 0 [pid 5919] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, [pid 5835] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5919] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5919] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5919] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0d6adff000 [pid 5919] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5919] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5919] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0}./strace-static-x86_64: Process 5920 attached [pid 5920] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 5919] <... clone3 resumed> => {parent_tid=[14]}, 88) = 14 [pid 5920] <... rseq resumed>) = 0 [pid 5919] rt_sigprocmask(SIG_SETMASK, [], [pid 5920] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 5919] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5920] <... set_robust_list resumed>) = 0 [pid 5919] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5920] rt_sigprocmask(SIG_SETMASK, [], [pid 5919] <... futex resumed>) = 0 [pid 5920] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5919] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5920] memfd_create("syzkaller", 0) = 3 [pid 5920] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5835] unlink("./3/cgroup.net" [pid 5920] <... mmap resumed>) = 0x7f0d62800000 [pid 5915] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 5915] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5915] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5835] <... unlink resumed>) = 0 [pid 5912] close(3 [pid 5835] umount2("./3/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5912] <... close resumed>) = 0 [pid 5912] close(4 [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5912] <... close resumed>) = 0 [pid 5836] umount2("./3", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5835] newfstatat(AT_FDCWD, "./3/binderfs", [pid 5912] close(5 [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5835] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5912] <... close resumed>) = 0 [pid 5836] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5835] unlink("./3/binderfs" [pid 5912] close(6) = 0 [pid 5836] <... openat resumed>) = 3 [pid 5912] close(7 [pid 5836] newfstatat(3, "", [pid 5835] <... unlink resumed>) = 0 [pid 5912] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 5835] umount2("./3/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5912] close(8 [pid 5920] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5912] <... close resumed>) = -1 EBADF (Bad file descriptor) [ 88.095236][ T5911] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 88.111247][ T5917] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 88.120487][ T5911] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5912] close(9 [pid 5836] getdents64(3, [pid 5920] <... write resumed>) = 1048576 [pid 5912] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] <... getdents64 resumed>0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 5912] close(10 [pid 5836] umount2("./3/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5912] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5912] close(11) = -1 EBADF (Bad file descriptor) [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5920] munmap(0x7f0d62800000, 138412032 [pid 5912] close(12 [pid 5836] newfstatat(AT_FDCWD, "./3/cgroup", [pid 5912] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5912] close(13 [pid 5836] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5912] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] unlink("./3/cgroup" [pid 5912] close(14) = -1 EBADF (Bad file descriptor) [pid 5912] close(15 [pid 5836] <... unlink resumed>) = 0 [pid 5912] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] umount2("./3/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [ 88.142505][ T5913] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 88.148554][ T5911] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 88.167897][ T5913] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 88.181046][ T5911] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5912] close(16 [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5920] <... munmap resumed>) = 0 [pid 5912] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5912] close(17 [pid 5836] newfstatat(AT_FDCWD, "./3/cgroup.cpu", [pid 5912] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5912] close(18) = -1 EBADF (Bad file descriptor) [pid 5920] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5912] close(19 [pid 5836] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5912] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5920] <... openat resumed>) = 4 [pid 5912] close(20 [pid 5836] unlink("./3/cgroup.cpu" [pid 5912] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5920] ioctl(4, LOOP_SET_FD, 3 [pid 5912] close(21 [pid 5836] <... unlink resumed>) = 0 [pid 5912] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] umount2("./3/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5912] close(22 [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5912] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] newfstatat(AT_FDCWD, "./3/cgroup.net", [pid 5912] close(23 [pid 5836] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [ 88.196135][ T5911] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 88.211370][ T5913] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 88.212596][ T5920] loop0: detected capacity change from 0 to 2048 [ 88.231942][ T5913] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5920] <... ioctl resumed>) = 0 [pid 5912] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] unlink("./3/cgroup.net" [pid 5912] close(24 [pid 5920] close(3 [pid 5912] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] <... unlink resumed>) = 0 [pid 5912] close(25 [pid 5920] <... close resumed>) = 0 [pid 5912] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5920] close(4 [pid 5836] umount2("./3/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5912] close(26 [pid 5920] <... close resumed>) = 0 [pid 5912] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] newfstatat(AT_FDCWD, "./3/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5920] mkdir("./file2", 0777 [pid 5912] close(27 [pid 5836] unlink("./3/binderfs" [pid 5920] <... mkdir resumed>) = 0 [ 88.233724][ T5911] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 88.262108][ T5913] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 88.274530][ T5911] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5912] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] <... unlink resumed>) = 0 [pid 5920] mount("/dev/loop0", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 5912] close(28 [pid 5836] umount2("./3/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5912] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5912] close(29) = -1 EBADF (Bad file descriptor) [pid 5912] exit_group(0 [pid 5918] <... futex resumed>) = ? [pid 5915] <... futex resumed>) = ? [pid 5912] <... exit_group resumed>) = ? [pid 5918] +++ exited with 0 +++ [pid 5915] +++ exited with 0 +++ [pid 5912] +++ exited with 0 +++ [pid 5834] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 5834] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5834] umount2("./4", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5834] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5834] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 5834] getdents64(3, 0x55555fa3d730 /* 7 entries */, 32768) = 208 [ 88.286784][ T5913] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 88.299397][ T5911] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 88.312950][ T5920] NILFS (loop0): broken superblock, retrying with spare superblock (blocksize = 1024) [ 88.323380][ T5911] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 88.335099][ T5913] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5834] umount2("./4/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5834] newfstatat(AT_FDCWD, "./4/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5834] unlink("./4/cgroup") = 0 [pid 5834] umount2("./4/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5834] newfstatat(AT_FDCWD, "./4/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5834] unlink("./4/cgroup.cpu") = 0 [pid 5834] umount2("./4/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5834] newfstatat(AT_FDCWD, "./4/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5834] unlink("./4/cgroup.net") = 0 [pid 5834] umount2("./4/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5834] newfstatat(AT_FDCWD, "./4/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5834] unlink("./4/binderfs") = 0 [ 88.335223][ T5914] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 88.364213][ T5917] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 88.365459][ T5914] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 88.375175][ T5913] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 88.398012][ T5911] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 88.409342][ T5921] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 88.421259][ T5838] udevd[5838]: incorrect nilfs2 checksum on /dev/loop0 [ 88.430398][ T5917] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5834] umount2("./4/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5920] <... mount resumed>) = 0 [pid 5920] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY) = 3 [pid 5920] chdir("./file2") = 0 [pid 5920] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5920] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5919] <... futex resumed>) = 0 [pid 5920] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5919] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5920] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5919] <... futex resumed>) = 0 [pid 5920] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 5919] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5920] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 5920] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5919] <... futex resumed>) = 0 [pid 5920] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5919] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5920] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5919] <... futex resumed>) = 0 [pid 5920] openat(AT_FDCWD, "/dev/cuse", O_RDWR [ 88.435246][ T5911] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 88.442878][ T5914] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 88.452832][ T5913] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 88.481105][ T5917] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5919] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5920] <... openat resumed>) = 4 [pid 5920] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5919] <... futex resumed>) = 0 [pid 5920] read(-1, [ 88.481730][ T5911] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 88.499864][ T5917] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 88.504268][ T5911] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 88.525223][ T5914] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 88.526226][ T5911] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5919] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5920] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 5919] <... futex resumed>) = 0 [pid 5919] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [ 88.536359][ T5913] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 88.547848][ T5911] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 88.567765][ T5914] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 88.580747][ T5917] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5920] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5919] <... futex resumed>) = 0 [pid 5920] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5919] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5920] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5919] <... futex resumed>) = 0 [pid 5920] memfd_create("syzkaller", 0 [pid 5919] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5920] <... memfd_create resumed>) = 5 [pid 5920] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 [ 88.591970][ T5913] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 88.602834][ T5917] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 88.603459][ T5914] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 88.613910][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 88.635716][ T5917] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 88.647153][ T5917] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 88.649660][ T5913] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 88.658666][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 88.675985][ T5914] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5920] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5920] munmap(0x7f0d62800000, 138412032) = 0 [pid 5920] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5920] close(5) = 0 [pid 5920] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5919] <... futex resumed>) = 0 [pid 5920] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5919] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5920] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5919] <... futex resumed>) = 0 [pid 5920] fsync(-1 [pid 5919] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5920] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 5920] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5919] <... futex resumed>) = 0 [pid 5920] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5919] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5920] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5919] <... futex resumed>) = 0 [pid 5920] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [ 88.679333][ T5917] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 88.698590][ T5914] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 88.701838][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 88.714700][ T5913] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 88.722958][ T5917] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5919] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5920] <... openat resumed>) = 5 [pid 5920] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5919] <... futex resumed>) = 0 [pid 5920] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 5919] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5919] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 5919] futex(0x7f0d6aef46dc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5919] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0d6adde000 [pid 5919] mprotect(0x7f0d6addf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5919] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5919] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6adfe990, parent_tid=0x7f0d6adfe990, exit_signal=0, stack=0x7f0d6adde000, stack_size=0x20300, tls=0x7f0d6adfe6c0}./strace-static-x86_64: Process 5922 attached [pid 5922] rseq(0x7f0d6adfefe0, 0x20, 0, 0x53053053 [pid 5919] <... clone3 resumed> => {parent_tid=[15]}, 88) = 15 [pid 5922] <... rseq resumed>) = 0 [pid 5919] rt_sigprocmask(SIG_SETMASK, [], [pid 5922] set_robust_list(0x7f0d6adfe9a0, 24 [pid 5919] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5922] <... set_robust_list resumed>) = 0 [pid 5919] futex(0x7f0d6aef46d8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5922] rt_sigprocmask(SIG_SETMASK, [], [pid 5919] <... futex resumed>) = 0 [pid 5922] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5919] futex(0x7f0d6aef46dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [ 88.735879][ T5914] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 88.754408][ T5913] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 88.754598][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 88.765715][ T5914] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 88.777425][ T5921] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5922] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000) = 6 [pid 5922] futex(0x7f0d6aef46dc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5919] <... futex resumed>) = 0 [pid 5922] futex(0x7f0d6aef46d8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5919] futex(0x7f0d6aef46d8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5922] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5919] <... futex resumed>) = 0 [pid 5922] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [ 88.793107][ T5913] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 88.797632][ T5917] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 88.807765][ T5914] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 88.817814][ T5837] NILFS (loop4): disposed unprocessed dirty file(s) when stopping log writer [ 88.830858][ T5835] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5919] futex(0x7f0d6aef46dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5920] <... write resumed>) = -1 ENOENT (No such file or directory) [ 88.838274][ T5917] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 88.869884][ T5835] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 88.877693][ T5917] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5920] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] <... umount2 resumed>) = 0 [pid 5919] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5920] <... futex resumed>) = 0 [pid 5837] umount2("./3/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5920] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 88.881406][ T5914] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 88.902988][ T5917] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 88.909734][ T5835] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 88.914694][ T5917] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 88.936047][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5837] newfstatat(AT_FDCWD, "./3/file2", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [ 88.940224][ T5914] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 88.948759][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 88.957423][ T5835] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 88.969049][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5837] umount2("./3/file2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5837] openat(AT_FDCWD, "./3/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5837] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 5837] getdents64(4, 0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 5837] getdents64(4, 0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 5837] close(4) = 0 [pid 5837] rmdir("./3/file2") = 0 [pid 5837] getdents64(3, 0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 5837] close(3) = 0 [pid 5837] rmdir("./3") = 0 [pid 5837] mkdir("./4", 0777) = 0 [pid 5837] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5837] ioctl(3, LOOP_CLR_FD) = 0 [pid 5837] close(3) = 0 [ 88.979891][ T5914] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 89.002790][ T5835] NILFS (loop3): disposed unprocessed dirty file(s) when stopping log writer [ 89.030503][ T5914] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5837] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDexecuting program ./strace-static-x86_64: Process 5923 attached [pid 5923] set_robust_list(0x55555fa3c6a0, 24) = 0 [pid 5923] chdir("./4") = 0 [pid 5923] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5923] setpgid(0, 0) = 0 [pid 5923] symlink("/syzcgroup/unified/syz4", "./cgroup") = 0 [pid 5923] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu") = 0 [pid 5923] symlink("/syzcgroup/net/syz4", "./cgroup.net") = 0 [pid 5923] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5923] write(3, "1000", 4) = 4 [pid 5923] close(3) = 0 [pid 5923] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5923] write(1, "executing program\n", 18) = 18 [pid 5923] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5923] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, NULL, 8) = 0 [pid 5923] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5923] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5837] <... clone resumed>, child_tidptr=0x55555fa3c690) = 10 [pid 5923] <... mmap resumed>) = 0x7f0d6adff000 [pid 5923] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5923] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5923] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0}./strace-static-x86_64: Process 5924 attached [pid 5924] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 5923] <... clone3 resumed> => {parent_tid=[11]}, 88) = 11 [pid 5924] <... rseq resumed>) = 0 [pid 5923] rt_sigprocmask(SIG_SETMASK, [], [pid 5924] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 5923] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5924] <... set_robust_list resumed>) = 0 [pid 5923] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5924] rt_sigprocmask(SIG_SETMASK, [], [pid 5923] <... futex resumed>) = 0 [pid 5924] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5923] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5924] memfd_create("syzkaller", 0) = 3 [pid 5924] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 [ 89.046103][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 89.065529][ T5836] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 89.076620][ T5836] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 89.077647][ T5834] NILFS (loop1): disposed unprocessed dirty file(s) when stopping log writer [pid 5924] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576 [pid 5835] <... umount2 resumed>) = 0 [pid 5836] <... umount2 resumed>) = 0 [pid 5924] munmap(0x7f0d62800000, 138412032 [pid 5835] umount2("./3/file2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5835] newfstatat(AT_FDCWD, "./3/file2", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5835] umount2("./3/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5924] <... munmap resumed>) = 0 [pid 5836] umount2("./3/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5834] <... umount2 resumed>) = 0 [pid 5924] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5835] openat(AT_FDCWD, "./3/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [ 89.088728][ T5836] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 89.107248][ T5836] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 89.118232][ T5836] NILFS (loop2): disposed unprocessed dirty file(s) when stopping log writer [pid 5924] <... openat resumed>) = 4 [pid 5836] newfstatat(AT_FDCWD, "./3/file2", [pid 5834] umount2("./4/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5924] ioctl(4, LOOP_SET_FD, 3 [pid 5836] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5835] <... openat resumed>) = 4 [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5922] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 5922] futex(0x7f0d6aef46dc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5836] umount2("./3/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5835] newfstatat(4, "", [pid 5834] newfstatat(AT_FDCWD, "./4/file2", [pid 5922] futex(0x7f0d6aef46d8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5919] close(3 [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5835] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 5834] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5924] <... ioctl resumed>) = 0 [pid 5919] <... close resumed>) = 0 [pid 5836] openat(AT_FDCWD, "./3/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5835] getdents64(4, [pid 5834] umount2("./4/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5919] close(4 [pid 5836] <... openat resumed>) = 4 [pid 5835] <... getdents64 resumed>0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 5924] close(3 [pid 5919] <... close resumed>) = 0 [pid 5836] newfstatat(4, "", [pid 5924] <... close resumed>) = 0 [pid 5919] close(5 [pid 5835] getdents64(4, [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5924] close(4 [pid 5919] <... close resumed>) = 0 [pid 5836] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 5835] <... getdents64 resumed>0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 5834] openat(AT_FDCWD, "./4/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5924] <... close resumed>) = 0 [pid 5836] getdents64(4, [pid 5835] close(4 [pid 5924] mkdir("./file2", 0777 [pid 5834] <... openat resumed>) = 4 [pid 5924] <... mkdir resumed>) = 0 [pid 5924] mount("/dev/loop4", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 5919] close(6 [pid 5836] <... getdents64 resumed>0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 5835] <... close resumed>) = 0 [pid 5834] newfstatat(4, "", [pid 5836] getdents64(4, [pid 5835] rmdir("./3/file2" [pid 5834] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 5919] <... close resumed>) = 0 [pid 5836] <... getdents64 resumed>0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 5835] <... rmdir resumed>) = 0 [pid 5919] close(7 [pid 5836] close(4 [pid 5835] getdents64(3, [pid 5919] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] <... close resumed>) = 0 [pid 5835] <... getdents64 resumed>0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 5919] close(8 [pid 5836] rmdir("./3/file2" [pid 5919] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] <... rmdir resumed>) = 0 [pid 5835] close(3 [pid 5919] close(9 [pid 5836] getdents64(3, [pid 5835] <... close resumed>) = 0 [pid 5919] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] <... getdents64 resumed>0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 5835] rmdir("./3" [pid 5919] close(10) = -1 EBADF (Bad file descriptor) [pid 5836] close(3 [pid 5835] <... rmdir resumed>) = 0 [pid 5919] close(11 [pid 5836] <... close resumed>) = 0 [pid 5835] mkdir("./4", 0777 [pid 5834] getdents64(4, [pid 5919] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] rmdir("./3" [pid 5919] close(12 [pid 5836] <... rmdir resumed>) = 0 [pid 5834] <... getdents64 resumed>0x55555fa45770 /* 2 entries */, 32768) = 48 [ 89.186998][ T5921] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 89.187201][ T5924] loop4: detected capacity change from 0 to 2048 [ 89.223725][ T5924] NILFS (loop4): broken superblock, retrying with spare superblock (blocksize = 1024) [pid 5919] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] mkdir("./4", 0777 [pid 5835] <... mkdir resumed>) = 0 [pid 5834] getdents64(4, [pid 5919] close(13 [pid 5836] <... mkdir resumed>) = 0 [pid 5834] <... getdents64 resumed>0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 5919] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5835] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5834] close(4 [pid 5924] <... mount resumed>) = 0 [pid 5919] close(14 [pid 5836] <... openat resumed>) = 3 [pid 5835] <... openat resumed>) = 3 [pid 5834] <... close resumed>) = 0 [pid 5924] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5919] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] ioctl(3, LOOP_CLR_FD [pid 5835] ioctl(3, LOOP_CLR_FD [pid 5919] close(15 [pid 5836] <... ioctl resumed>) = 0 [pid 5835] <... ioctl resumed>) = 0 [pid 5919] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] close(3 [pid 5919] close(16 [pid 5835] close(3 [pid 5836] <... close resumed>) = 0 [pid 5834] rmdir("./4/file2" [pid 5924] <... openat resumed>) = 3 [pid 5919] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5835] <... close resumed>) = 0 [pid 5834] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 5926 attached [pid 5924] chdir("./file2" [pid 5919] close(17 [pid 5835] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5834] getdents64(3, ./strace-static-x86_64: Process 5927 attached [pid 5926] set_robust_list(0x55555fa3c6a0, 24 [pid 5924] <... chdir resumed>) = 0 [pid 5919] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] <... clone resumed>, child_tidptr=0x55555fa3c690) = 11 [pid 5834] <... getdents64 resumed>0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 5927] set_robust_list(0x55555fa3c6a0, 24 [pid 5924] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5919] close(18 [pid 5834] close(3 [pid 5927] <... set_robust_list resumed>) = 0 [pid 5926] <... set_robust_list resumed>) = 0 [pid 5919] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5919] close(19 [pid 5834] <... close resumed>) = 0 [ 89.243535][ T5838] udevd[5838]: incorrect nilfs2 checksum on /dev/loop4 [ 89.256382][ T5925] NILFS (loop4): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 5835] <... clone resumed>, child_tidptr=0x55555fa3c690) = 12 [pid 5927] chdir("./4" [pid 5926] chdir("./4" [pid 5924] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5919] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5834] rmdir("./4" [pid 5919] close(20 [pid 5834] <... rmdir resumed>) = 0 [pid 5919] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5834] mkdir("./5", 0777 [pid 5927] <... chdir resumed>) = 0 [pid 5919] close(21 [pid 5927] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5926] <... chdir resumed>) = 0 [pid 5924] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5919] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5834] <... mkdir resumed>) = 0 [pid 5927] <... prctl resumed>) = 0 [pid 5926] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5924] <... futex resumed>) = 1 [pid 5923] <... futex resumed>) = 0 [pid 5919] close(22 [pid 5834] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5927] setpgid(0, 0 [pid 5926] <... prctl resumed>) = 0 [pid 5924] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5923] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5919] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5926] setpgid(0, 0 [pid 5924] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5923] <... futex resumed>) = 0 [pid 5834] <... openat resumed>) = 3 [pid 5927] <... setpgid resumed>) = 0 [pid 5926] <... setpgid resumed>) = 0 [pid 5924] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 5923] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5919] close(23 [pid 5834] ioctl(3, LOOP_CLR_FD [pid 5926] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5919] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5924] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 5834] <... ioctl resumed>) = 0 [pid 5926] <... symlink resumed>) = 0 [pid 5834] close(3 [pid 5927] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5926] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5924] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5919] close(24 [pid 5924] <... futex resumed>) = 1 [pid 5923] <... futex resumed>) = 0 [pid 5919] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5924] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5923] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5919] close(25 [pid 5834] <... close resumed>) = 0 [pid 5926] <... symlink resumed>) = 0 [pid 5919] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5926] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5924] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5923] <... futex resumed>) = 0 [pid 5919] close(26 [pid 5927] <... symlink resumed>) = 0 [pid 5924] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 5919] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5923] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5919] close(27 [pid 5924] <... openat resumed>) = 4 [pid 5919] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5927] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5926] <... symlink resumed>) = 0 [pid 5924] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5919] close(28 [pid 5834] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5928 attached [pid 5927] <... symlink resumed>) = 0 [pid 5926] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5924] <... futex resumed>) = 1 [pid 5923] <... futex resumed>) = 0 [pid 5919] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5927] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5926] <... openat resumed>) = 3 [pid 5924] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5923] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5919] close(29 [pid 5928] set_robust_list(0x55555fa3c6a0, 24 [pid 5926] write(3, "1000", 4 [pid 5924] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5923] <... futex resumed>) = 0 [pid 5919] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5926] <... write resumed>) = 4 [pid 5924] read(-1, [pid 5923] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5919] exit_group(0 [pid 5928] <... set_robust_list resumed>) = 0 [pid 5927] <... symlink resumed>) = 0 [pid 5926] close(3 [pid 5924] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 5922] <... futex resumed>) = ? [pid 5920] <... futex resumed>) = ? [pid 5919] <... exit_group resumed>) = ? [pid 5928] chdir("./5" [pid 5927] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5926] <... close resumed>) = 0 [pid 5924] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5922] +++ exited with 0 +++ [pid 5920] +++ exited with 0 +++ [pid 5919] +++ exited with 0 +++ [pid 5834] <... clone resumed>, child_tidptr=0x55555fa3c690) = 15 [pid 5928] <... chdir resumed>) = 0 [pid 5927] <... openat resumed>) = 3 [pid 5926] symlink("/dev/binderfs", "./binderfs" [pid 5924] <... futex resumed>) = 1 [pid 5923] <... futex resumed>) = 0 [pid 5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=22 /* 0.22 s */} --- [pid 5928] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5927] write(3, "1000", 4 [pid 5926] <... symlink resumed>) = 0 [pid 5924] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5923] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5833] restart_syscall(<... resuming interrupted clone ...>executing program [pid 5928] <... prctl resumed>) = 0 [pid 5927] <... write resumed>) = 4 [pid 5926] write(1, "executing program\n", 18 [pid 5924] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5923] <... futex resumed>) = 0 [pid 5928] setpgid(0, 0 [pid 5927] close(3 [pid 5926] <... write resumed>) = 18 [pid 5924] memfd_create("syzkaller", 0 [pid 5923] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5928] <... setpgid resumed>) = 0 [pid 5927] <... close resumed>) = 0 [pid 5926] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5924] <... memfd_create resumed>) = 5 [pid 5927] symlink("/dev/binderfs", "./binderfs" [pid 5926] <... futex resumed>) = 0 [pid 5924] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5928] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 5927] <... symlink resumed>) = 0 [pid 5926] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, [pid 5924] <... mmap resumed>) = 0x7f0d62800000 [pid 5928] <... symlink resumed>) = 0 [pid 5927] write(1, "executing program\n", 18 [pid 5924] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288executing program [pid 5833] <... restart_syscall resumed>) = 0 [pid 5928] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 5926] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5928] <... symlink resumed>) = 0 [pid 5927] <... write resumed>) = 18 [pid 5926] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5928] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 5927] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5833] umount2("./4", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5926] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5927] <... futex resumed>) = 0 [pid 5926] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5833] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5928] <... symlink resumed>) = 0 [pid 5927] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, [pid 5926] <... mmap resumed>) = 0x7f0d6adff000 [pid 5833] <... openat resumed>) = 3 [pid 5928] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5927] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5926] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE [pid 5833] newfstatat(3, "", [pid 5928] <... openat resumed>) = 3 [pid 5927] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5833] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 5927] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5926] <... mprotect resumed>) = 0 [pid 5927] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5833] getdents64(3, [pid 5928] write(3, "1000", 4 [pid 5927] <... mmap resumed>) = 0x7f0d6adff000 [pid 5833] <... getdents64 resumed>0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 5928] <... write resumed>) = 4 [pid 5928] close(3 [pid 5927] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE [pid 5926] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5833] umount2("./4/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5928] <... close resumed>) = 0 [pid 5927] <... mprotect resumed>) = 0 [pid 5926] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5924] <... write resumed>) = 524288 [pid 5928] symlink("/dev/binderfs", "./binderfs"executing program [pid 5926] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0} [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5928] <... symlink resumed>) = 0 [pid 5924] munmap(0x7f0d62800000, 138412032 [pid 5833] newfstatat(AT_FDCWD, "./4/cgroup", [pid 5927] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5928] write(1, "executing program\n", 18) = 18 [pid 5928] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 ./strace-static-x86_64: Process 5929 attached [pid 5927] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5926] <... clone3 resumed> => {parent_tid=[12]}, 88) = 12 [pid 5924] <... munmap resumed>) = 0 [pid 5833] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5929] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 5927] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0} [pid 5924] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5833] unlink("./4/cgroup" [pid 5929] <... rseq resumed>) = 0 [pid 5928] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, [pid 5926] rt_sigprocmask(SIG_SETMASK, [], [pid 5928] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5926] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5928] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5926] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5833] <... unlink resumed>) = 0 [pid 5928] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5926] <... futex resumed>) = 0 [pid 5924] <... openat resumed>) = -1 EBUSY (Device or resource busy) ./strace-static-x86_64: Process 5930 attached [pid 5928] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5926] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5930] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 5929] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 5928] <... mmap resumed>) = 0x7f0d6adff000 [pid 5924] close(5 [pid 5930] <... rseq resumed>) = 0 [pid 5929] <... set_robust_list resumed>) = 0 [pid 5928] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE [pid 5927] <... clone3 resumed> => {parent_tid=[13]}, 88) = 13 [pid 5833] umount2("./4/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5930] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 5929] rt_sigprocmask(SIG_SETMASK, [], [pid 5928] <... mprotect resumed>) = 0 [pid 5930] <... set_robust_list resumed>) = 0 [pid 5928] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5927] rt_sigprocmask(SIG_SETMASK, [], [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5930] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5928] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5930] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5929] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5928] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0} [pid 5927] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5833] newfstatat(AT_FDCWD, "./4/cgroup.cpu", [pid 5929] memfd_create("syzkaller", 0 [pid 5927] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5931 attached [pid 5930] <... futex resumed>) = 0 [pid 5927] <... futex resumed>) = 1 [pid 5931] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 5929] <... memfd_create resumed>) = 3 [pid 5928] <... clone3 resumed> => {parent_tid=[16]}, 88) = 16 [pid 5924] <... close resumed>) = 0 [pid 5927] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5833] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5931] <... rseq resumed>) = 0 [pid 5930] memfd_create("syzkaller", 0 [pid 5929] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5928] rt_sigprocmask(SIG_SETMASK, [], [pid 5924] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5833] unlink("./4/cgroup.cpu" [pid 5931] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 5930] <... memfd_create resumed>) = 3 [pid 5929] <... mmap resumed>) = 0x7f0d62800000 [pid 5928] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5924] <... futex resumed>) = 1 [pid 5923] <... futex resumed>) = 0 [pid 5931] <... set_robust_list resumed>) = 0 [pid 5930] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5928] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5924] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5923] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5833] <... unlink resumed>) = 0 [pid 5931] rt_sigprocmask(SIG_SETMASK, [], [pid 5930] <... mmap resumed>) = 0x7f0d62800000 [pid 5928] <... futex resumed>) = 0 [pid 5924] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5923] <... futex resumed>) = 0 [pid 5833] umount2("./4/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5924] fsync(-1 [pid 5923] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5924] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 5931] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5928] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5924] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5931] memfd_create("syzkaller", 0) = 3 [pid 5931] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 [pid 5930] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5929] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5924] <... futex resumed>) = 1 [pid 5923] <... futex resumed>) = 0 [pid 5833] newfstatat(AT_FDCWD, "./4/cgroup.net", [pid 5924] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5923] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5924] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5923] <... futex resumed>) = 0 [pid 5833] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5924] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5923] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5833] unlink("./4/cgroup.net" [pid 5930] <... write resumed>) = 1048576 [pid 5924] <... openat resumed>) = 5 [pid 5833] <... unlink resumed>) = 0 [pid 5931] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5930] munmap(0x7f0d62800000, 138412032 [pid 5929] <... write resumed>) = 1048576 [pid 5924] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5833] umount2("./4/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5930] <... munmap resumed>) = 0 [pid 5924] <... futex resumed>) = 1 [pid 5923] <... futex resumed>) = 0 [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5924] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 5923] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5833] newfstatat(AT_FDCWD, "./4/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5930] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5833] unlink("./4/binderfs" [pid 5930] <... openat resumed>) = 4 [pid 5923] <... futex resumed>) = 0 [pid 5833] <... unlink resumed>) = 0 [pid 5930] ioctl(4, LOOP_SET_FD, 3 [pid 5929] munmap(0x7f0d62800000, 138412032 [pid 5923] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5931] <... write resumed>) = 1048576 [pid 5929] <... munmap resumed>) = 0 [pid 5833] umount2("./4/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5930] <... ioctl resumed>) = 0 [pid 5931] munmap(0x7f0d62800000, 138412032 [pid 5930] close(3 [pid 5929] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5931] <... munmap resumed>) = 0 [pid 5931] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5930] <... close resumed>) = 0 [pid 5929] <... openat resumed>) = 4 [pid 5931] <... openat resumed>) = 4 [pid 5930] close(4 [pid 5929] ioctl(4, LOOP_SET_FD, 3 [pid 5931] ioctl(4, LOOP_SET_FD, 3 [pid 5930] <... close resumed>) = 0 [ 89.468855][ T5930] loop3: detected capacity change from 0 to 2048 [ 89.478357][ T5921] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 89.482795][ T5925] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 89.491759][ T5921] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 89.505014][ T5931] loop1: detected capacity change from 0 to 2048 [pid 5924] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 5923] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5931] <... ioctl resumed>) = 0 [pid 5924] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5923] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5931] close(3 [pid 5924] <... futex resumed>) = 0 [pid 5930] mkdir("./file2", 0777) = 0 [pid 5931] <... close resumed>) = 0 [pid 5923] <... futex resumed>) = 0 [pid 5924] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 5931] close(4 [pid 5923] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5930] mount("/dev/loop3", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 5931] <... close resumed>) = 0 [pid 5931] mkdir("./file2", 0777) = 0 [pid 5924] <... openat resumed>) = 6 [pid 5924] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5924] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5929] <... ioctl resumed>) = 0 [pid 5929] close(3) = 0 [pid 5929] close(4 [pid 5923] <... futex resumed>) = 0 [pid 5931] mount("/dev/loop1", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 5929] <... close resumed>) = 0 [pid 5929] mkdir("./file2", 0777 [pid 5923] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5929] <... mkdir resumed>) = 0 [pid 5924] <... futex resumed>) = 0 [ 89.517870][ T5929] loop2: detected capacity change from 0 to 2048 [ 89.529572][ T5930] NILFS (loop3): broken superblock, retrying with spare superblock (blocksize = 1024) [ 89.537176][ T5921] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 89.553790][ T5931] NILFS (loop1): broken superblock, retrying with spare superblock (blocksize = 1024) [pid 5923] <... futex resumed>) = 1 [pid 5929] mount("/dev/loop2", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 5924] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [ 89.561180][ T5929] NILFS (loop2): broken superblock, retrying with spare superblock (blocksize = 1024) [ 89.583143][ T5838] udevd[5838]: incorrect nilfs2 checksum on /dev/loop3 [ 89.596132][ T5921] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5923] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 5931] <... mount resumed>) = 0 [pid 5931] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY) = 3 [pid 5929] <... mount resumed>) = 0 [ 89.613866][ T5932] NILFS (loop3): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 89.627140][ T5933] NILFS (loop1): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 89.635611][ T5861] udevd[5861]: incorrect nilfs2 checksum on /dev/loop2 [ 89.651927][ T5934] NILFS (loop2): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 5931] chdir("./file2" [pid 5930] <... mount resumed>) = 0 [pid 5929] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5931] <... chdir resumed>) = 0 [pid 5930] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5929] <... openat resumed>) = 3 [pid 5931] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5930] <... openat resumed>) = 3 [pid 5930] chdir("./file2") = 0 [pid 5930] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5930] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5930] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5931] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5931] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5929] chdir("./file2" [pid 5927] <... futex resumed>) = 0 [pid 5931] <... futex resumed>) = 1 [pid 5928] <... futex resumed>) = 0 [pid 5927] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5931] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5930] <... futex resumed>) = 0 [pid 5928] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5927] <... futex resumed>) = 1 [pid 5931] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5930] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 5928] <... futex resumed>) = 0 [pid 5927] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5931] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 5930] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 5928] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5931] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 5930] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5931] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5930] <... futex resumed>) = 1 [pid 5927] <... futex resumed>) = 0 [pid 5931] <... futex resumed>) = 1 [pid 5930] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5928] <... futex resumed>) = 0 [pid 5931] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5930] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5928] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5927] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5931] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5930] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 5928] <... futex resumed>) = 0 [pid 5927] <... futex resumed>) = 0 [pid 5931] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 5930] <... openat resumed>) = 4 [pid 5929] <... chdir resumed>) = 0 [pid 5928] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5931] <... openat resumed>) = 4 [pid 5930] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5927] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5931] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5930] <... futex resumed>) = 0 [pid 5927] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5931] <... futex resumed>) = 1 [pid 5930] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5928] <... futex resumed>) = 0 [pid 5927] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5931] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5930] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5928] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5931] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5930] read(-1, [pid 5928] <... futex resumed>) = 0 [pid 5927] <... futex resumed>) = 0 [pid 5931] read(-1, [pid 5930] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 5928] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5927] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5931] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 5930] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5927] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5931] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5930] <... futex resumed>) = 0 [pid 5929] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5927] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5931] <... futex resumed>) = 1 [pid 5930] memfd_create("syzkaller", 0 [ 89.654350][ T5921] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 89.680881][ T5921] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 89.693962][ T5921] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 89.705630][ T5921] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5928] <... futex resumed>) = 0 [pid 5927] <... futex resumed>) = 0 [pid 5931] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5930] <... memfd_create resumed>) = 5 [pid 5928] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5927] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5931] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5930] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5929] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5929] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5931] memfd_create("syzkaller", 0 [pid 5930] <... mmap resumed>) = 0x7f0d62800000 [pid 5928] <... futex resumed>) = 0 [pid 5931] <... memfd_create resumed>) = 5 [pid 5930] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5928] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5926] <... futex resumed>) = 0 [pid 5931] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5929] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5926] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5931] <... mmap resumed>) = 0x7f0d62800000 [pid 5926] <... futex resumed>) = 0 [ 89.717034][ T5921] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 89.732221][ T5921] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 89.744324][ T5921] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 89.755952][ T5921] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5926] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5931] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5929] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5930] <... write resumed>) = 524288 [pid 5931] <... write resumed>) = 524288 [pid 5930] munmap(0x7f0d62800000, 138412032) = 0 [pid 5930] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5930] close(5) = 0 [pid 5929] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 5931] munmap(0x7f0d62800000, 138412032) = 0 [pid 5931] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5931] close(5) = 0 [pid 5931] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5930] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5929] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 5926] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5931] <... futex resumed>) = 1 [pid 5930] <... futex resumed>) = 1 [pid 5928] <... futex resumed>) = 0 [pid 5927] <... futex resumed>) = 0 [pid 5926] futex(0x7f0d6aef46dc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5931] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5930] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5929] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [ 89.767795][ T5921] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 89.779847][ T5921] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 89.791732][ T5921] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 89.804139][ T5833] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5928] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5927] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5926] <... futex resumed>) = 0 [pid 5931] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5930] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5928] <... futex resumed>) = 0 [pid 5927] <... futex resumed>) = 0 [pid 5926] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5931] fsync(-1 [pid 5930] fsync(-1 [pid 5928] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5927] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5926] <... mmap resumed>) = 0x7f0d6adde000 [pid 5931] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 5930] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 5926] mprotect(0x7f0d6addf000, 131072, PROT_READ|PROT_WRITE [pid 5931] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5930] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5926] <... mprotect resumed>) = 0 [pid 5931] <... futex resumed>) = 1 [pid 5930] <... futex resumed>) = 1 [pid 5928] <... futex resumed>) = 0 [pid 5927] <... futex resumed>) = 0 [pid 5926] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5931] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5930] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5928] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5927] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5926] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5931] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5930] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5928] <... futex resumed>) = 0 [pid 5927] <... futex resumed>) = 0 [pid 5926] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6adfe990, parent_tid=0x7f0d6adfe990, exit_signal=0, stack=0x7f0d6adde000, stack_size=0x20300, tls=0x7f0d6adfe6c0} [pid 5931] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5930] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5929] <... futex resumed>) = 0 [pid 5928] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5927] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5926] <... clone3 resumed> => {parent_tid=[13]}, 88) = 13 [pid 5926] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5926] futex(0x7f0d6aef46d8, FUTEX_WAKE_PRIVATE, 1000000) = 0 ./strace-static-x86_64: Process 5935 attached [pid 5931] <... openat resumed>) = 5 [pid 5930] <... openat resumed>) = 5 [pid 5929] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5926] futex(0x7f0d6aef46dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5931] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5930] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5935] rseq(0x7f0d6adfefe0, 0x20, 0, 0x53053053) = 0 [pid 5931] <... futex resumed>) = 1 [pid 5930] <... futex resumed>) = 1 [pid 5928] <... futex resumed>) = 0 [pid 5927] <... futex resumed>) = 0 [pid 5931] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5930] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5928] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5927] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5931] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5930] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5928] <... futex resumed>) = 0 [pid 5931] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 5927] <... futex resumed>) = 0 [pid 5930] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 5928] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5927] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [ 89.817106][ T5833] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 89.830602][ T5833] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 89.844887][ T5833] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 89.858404][ T5833] NILFS (loop0): disposed unprocessed dirty file(s) when stopping log writer [pid 5935] set_robust_list(0x7f0d6adfe9a0, 24) = 0 [pid 5935] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5935] openat(AT_FDCWD, "/dev/cuse", O_RDWR) = 4 [pid 5935] futex(0x7f0d6aef46dc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5926] <... futex resumed>) = 0 [pid 5935] futex(0x7f0d6aef46d8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5926] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5929] <... futex resumed>) = 0 [pid 5926] <... futex resumed>) = 1 [pid 5929] read(-1, [pid 5926] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5929] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 5929] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5926] <... futex resumed>) = 0 [pid 5929] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5926] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5929] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5929] memfd_create("syzkaller", 0 [pid 5926] <... futex resumed>) = 0 [pid 5929] <... memfd_create resumed>) = 5 [pid 5926] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5929] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 [pid 5929] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5930] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 5929] <... write resumed>) = 524288 [pid 5928] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5927] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5929] munmap(0x7f0d62800000, 138412032 [pid 5931] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 5930] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5928] futex(0x7f0d6aef46dc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5927] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5924] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 5930] <... futex resumed>) = 0 [pid 5927] <... futex resumed>) = 0 [pid 5924] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5923] close(3 [pid 5833] <... umount2 resumed>) = 0 [pid 5930] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 5927] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5924] <... futex resumed>) = 0 [pid 5923] <... close resumed>) = 0 [pid 5833] umount2("./4/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5924] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./4/file2", [pid 5931] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5930] <... openat resumed>) = 6 [pid 5929] <... munmap resumed>) = 0 [pid 5928] <... futex resumed>) = 0 [pid 5923] close(4 [pid 5931] <... futex resumed>) = 0 [pid 5930] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5929] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5928] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5923] <... close resumed>) = 0 [pid 5833] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5931] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5930] <... futex resumed>) = 1 [pid 5929] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5928] <... mmap resumed>) = 0x7f0d6adde000 [pid 5927] <... futex resumed>) = 0 [pid 5923] close(5 [pid 5833] umount2("./4/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5930] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5929] close(5 [pid 5928] mprotect(0x7f0d6addf000, 131072, PROT_READ|PROT_WRITE [pid 5927] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5923] <... close resumed>) = 0 [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5930] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5928] <... mprotect resumed>) = 0 [pid 5927] <... futex resumed>) = 0 [pid 5923] close(6 [pid 5833] openat(AT_FDCWD, "./4/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5930] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 5928] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5927] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5923] <... close resumed>) = 0 [pid 5833] <... openat resumed>) = 4 [pid 5928] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5833] newfstatat(4, "", [pid 5928] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6adfe990, parent_tid=0x7f0d6adfe990, exit_signal=0, stack=0x7f0d6adde000, stack_size=0x20300, tls=0x7f0d6adfe6c0} [pid 5833] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 5833] getdents64(4, ./strace-static-x86_64: Process 5936 attached [pid 5929] <... close resumed>) = 0 [pid 5928] <... clone3 resumed> => {parent_tid=[17]}, 88) = 17 [pid 5923] close(7 [pid 5833] <... getdents64 resumed>0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 5936] rseq(0x7f0d6adfefe0, 0x20, 0, 0x53053053 [pid 5929] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5928] rt_sigprocmask(SIG_SETMASK, [], [pid 5923] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5833] getdents64(4, [pid 5936] <... rseq resumed>) = 0 [pid 5929] <... futex resumed>) = 1 [ 89.864105][ T5932] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 89.891522][ T5933] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 89.904092][ T5925] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5928] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5926] <... futex resumed>) = 0 [pid 5923] close(8 [pid 5936] set_robust_list(0x7f0d6adfe9a0, 24 [pid 5929] fsync(-1 [pid 5928] futex(0x7f0d6aef46d8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5926] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5923] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5833] <... getdents64 resumed>0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 5936] <... set_robust_list resumed>) = 0 [pid 5929] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 5928] <... futex resumed>) = 0 [pid 5926] <... futex resumed>) = 0 [pid 5923] close(9 [pid 5833] close(4 [pid 5936] rt_sigprocmask(SIG_SETMASK, [], [pid 5929] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5928] futex(0x7f0d6aef46dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5926] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5923] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5833] <... close resumed>) = 0 [pid 5923] close(10 [pid 5926] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5923] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5936] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5929] <... futex resumed>) = 0 [pid 5926] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5923] close(11 [pid 5833] rmdir("./4/file2" [pid 5936] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 5929] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5926] <... futex resumed>) = 0 [pid 5923] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5833] <... rmdir resumed>) = 0 [pid 5926] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5923] close(12) = -1 EBADF (Bad file descriptor) [pid 5923] close(13) = -1 EBADF (Bad file descriptor) [pid 5923] close(14 [pid 5929] <... openat resumed>) = 5 [pid 5923] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5833] getdents64(3, [pid 5936] <... openat resumed>) = 6 [pid 5936] futex(0x7f0d6aef46dc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5929] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5923] close(15 [pid 5833] <... getdents64 resumed>0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 5936] <... futex resumed>) = 1 [pid 5929] <... futex resumed>) = 1 [pid 5928] <... futex resumed>) = 0 [pid 5926] <... futex resumed>) = 0 [pid 5923] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5833] close(3 [pid 5936] futex(0x7f0d6aef46d8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5929] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5928] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5926] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5923] close(16 [pid 5833] <... close resumed>) = 0 [pid 5931] <... futex resumed>) = 0 [pid 5929] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5928] <... futex resumed>) = 1 [pid 5926] <... futex resumed>) = 0 [pid 5923] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5833] rmdir("./4" [pid 5931] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 5929] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 5926] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5923] close(17 [pid 5928] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5833] <... rmdir resumed>) = 0 [pid 5923] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5923] close(18) = -1 EBADF (Bad file descriptor) [pid 5923] close(19) = -1 EBADF (Bad file descriptor) [pid 5923] close(20) = -1 EBADF (Bad file descriptor) [pid 5923] close(21) = -1 EBADF (Bad file descriptor) [pid 5923] close(22) = -1 EBADF (Bad file descriptor) [pid 5923] close(23) = -1 EBADF (Bad file descriptor) [pid 5923] close(24) = -1 EBADF (Bad file descriptor) [pid 5923] close(25) = -1 EBADF (Bad file descriptor) [pid 5833] mkdir("./5", 0777 [pid 5923] close(26) = -1 EBADF (Bad file descriptor) [pid 5833] <... mkdir resumed>) = 0 [pid 5923] close(27) = -1 EBADF (Bad file descriptor) [pid 5923] close(28) = -1 EBADF (Bad file descriptor) [pid 5923] close(29) = -1 EBADF (Bad file descriptor) [pid 5923] exit_group(0 [pid 5924] <... futex resumed>) = ? [pid 5923] <... exit_group resumed>) = ? [pid 5924] +++ exited with 0 +++ [pid 5923] +++ exited with 0 +++ [pid 5927] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5833] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5837] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 5837] umount2("./4", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5837] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5833] <... openat resumed>) = 3 [pid 5837] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 5837] getdents64(3, 0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 5837] umount2("./4/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5837] newfstatat(AT_FDCWD, "./4/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5837] unlink("./4/cgroup") = 0 [pid 5837] umount2("./4/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5837] newfstatat(AT_FDCWD, "./4/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] ioctl(3, LOOP_CLR_FD [pid 5837] unlink("./4/cgroup.cpu" [pid 5833] <... ioctl resumed>) = 0 [pid 5833] close(3 [pid 5837] <... unlink resumed>) = 0 [pid 5837] umount2("./4/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5837] newfstatat(AT_FDCWD, "./4/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5837] unlink("./4/cgroup.net") = 0 [pid 5837] umount2("./4/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5837] newfstatat(AT_FDCWD, "./4/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5837] unlink("./4/binderfs") = 0 [pid 5837] umount2("./4/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5929] <... write resumed>) = -1 ENOENT (No such file or directory) [ 89.989658][ T5934] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5929] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5926] <... futex resumed>) = 0 [pid 5929] <... futex resumed>) = 1 [pid 5833] <... close resumed>) = 0 [pid 5929] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 5926] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5926] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5929] <... openat resumed>) = 6 [pid 5929] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5926] <... futex resumed>) = 0 [pid 5929] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5926] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5929] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5926] <... futex resumed>) = 0 [pid 5929] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 5926] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5928] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5937 attached [pid 5937] set_robust_list(0x55555fa3c6a0, 24 [pid 5833] <... clone resumed>, child_tidptr=0x55555fa3c690) = 16 [pid 5937] <... set_robust_list resumed>) = 0 [ 90.035175][ T5925] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 90.060868][ T5925] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5937] chdir("./5") = 0 [pid 5937] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5937] setpgid(0, 0) = 0 [pid 5937] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5937] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 5926] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5937] <... symlink resumed>) = 0 [ 90.099878][ T5925] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 90.130895][ T5925] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5937] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5937] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5937] write(3, "1000", 4) = 4 [ 90.159878][ T5925] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 90.177449][ T5932] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5937] close(3) = 0 [pid 5937] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5930] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 5930] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5930] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5927] close(3) = 0 [pid 5927] close(4) = 0 [pid 5927] close(5) = 0 [pid 5927] close(6) = 0 [pid 5927] close(7) = -1 EBADF (Bad file descriptor) [pid 5927] close(8) = -1 EBADF (Bad file descriptor) [pid 5927] close(9) = -1 EBADF (Bad file descriptor) [pid 5927] close(10) = -1 EBADF (Bad file descriptor) [pid 5927] close(11) = -1 EBADF (Bad file descriptor) [pid 5927] close(12) = -1 EBADF (Bad file descriptor) [pid 5927] close(13) = -1 EBADF (Bad file descriptor) [pid 5927] close(14) = -1 EBADF (Bad file descriptor) [pid 5927] close(15) = -1 EBADF (Bad file descriptor) [pid 5927] close(16) = -1 EBADF (Bad file descriptor) [pid 5927] close(17) = -1 EBADF (Bad file descriptor) [pid 5927] close(18) = -1 EBADF (Bad file descriptor) [pid 5927] close(19) = -1 EBADF (Bad file descriptor) [pid 5927] close(20) = -1 EBADF (Bad file descriptor) [pid 5927] close(21) = -1 EBADF (Bad file descriptor) [pid 5927] close(22) = -1 EBADF (Bad file descriptor) [pid 5927] close(23) = -1 EBADF (Bad file descriptor) [pid 5927] close(24) = -1 EBADF (Bad file descriptor) [pid 5927] close(25) = -1 EBADF (Bad file descriptor) [pid 5927] close(26) = -1 EBADF (Bad file descriptor) [pid 5927] close(27) = -1 EBADF (Bad file descriptor) [pid 5927] close(28) = -1 EBADF (Bad file descriptor) [pid 5927] close(29) = -1 EBADF (Bad file descriptor) [pid 5927] exit_group(0 [pid 5930] <... futex resumed>) = ? [pid 5927] <... exit_group resumed>) = ? executing program [pid 5937] write(1, "executing program\n", 18 [pid 5930] +++ exited with 0 +++ [pid 5927] +++ exited with 0 +++ [pid 5937] <... write resumed>) = 18 [pid 5937] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5835] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 5937] <... futex resumed>) = 0 [pid 5835] umount2("./4", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5937] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, NULL, 8) = 0 [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5835] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5835] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 5835] getdents64(3, 0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 5835] umount2("./4/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5835] newfstatat(AT_FDCWD, "./4/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5835] unlink("./4/cgroup") = 0 [pid 5835] umount2("./4/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5835] newfstatat(AT_FDCWD, "./4/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5835] unlink("./4/cgroup.cpu") = 0 [pid 5835] umount2("./4/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5835] newfstatat(AT_FDCWD, "./4/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5835] unlink("./4/cgroup.net") = 0 [pid 5835] umount2("./4/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5835] newfstatat(AT_FDCWD, "./4/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5835] unlink("./4/binderfs") = 0 [pid 5835] umount2("./4/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5937] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [ 90.200822][ T5925] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 90.224821][ T5925] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 90.239097][ T5932] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5937] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0d6adff000 [pid 5937] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5937] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5931] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 5931] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5928] close(3 [pid 5937] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0} [pid 5931] <... futex resumed>) = 0 [pid 5931] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5928] <... close resumed>) = 0 [ 90.250431][ T5925] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 90.266091][ T5933] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 90.266789][ T5925] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 90.290077][ T5932] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5928] close(4 [pid 5937] <... clone3 resumed> => {parent_tid=[17]}, 88) = 17 ./strace-static-x86_64: Process 5938 attached [pid 5938] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053) = 0 [pid 5938] set_robust_list(0x7f0d6ae1f9a0, 24) = 0 [pid 5938] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5938] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5928] <... close resumed>) = 0 [pid 5937] rt_sigprocmask(SIG_SETMASK, [], [pid 5928] close(5) = 0 [pid 5937] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5928] close(6 [pid 5937] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5928] <... close resumed>) = 0 [pid 5937] <... futex resumed>) = 1 [pid 5938] <... futex resumed>) = 0 [pid 5937] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5928] close(7 [pid 5938] memfd_create("syzkaller", 0 [pid 5928] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5938] <... memfd_create resumed>) = 3 [pid 5928] close(8 [pid 5938] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 [pid 5928] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5928] close(9 [pid 5938] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5928] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5928] close(10) = -1 EBADF (Bad file descriptor) [pid 5928] close(11) = -1 EBADF (Bad file descriptor) [pid 5928] close(12) = -1 EBADF (Bad file descriptor) [pid 5928] close(13) = -1 EBADF (Bad file descriptor) [ 90.302600][ T5925] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 90.329129][ T5932] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 90.341162][ T5925] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5938] <... write resumed>) = 1048576 [pid 5928] close(14 [pid 5938] munmap(0x7f0d62800000, 138412032 [pid 5928] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5938] <... munmap resumed>) = 0 [pid 5928] close(15 [pid 5938] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5928] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5938] <... openat resumed>) = 4 [pid 5928] close(16 [pid 5938] ioctl(4, LOOP_SET_FD, 3 [pid 5928] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5929] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 5929] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5929] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5928] close(17) = -1 EBADF (Bad file descriptor) [pid 5928] close(18) = -1 EBADF (Bad file descriptor) [pid 5926] close(3) = 0 [pid 5926] close(4) = 0 [pid 5928] close(19 [pid 5926] close(5 [pid 5928] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5926] <... close resumed>) = 0 [pid 5928] close(20 [pid 5926] close(6 [pid 5928] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5926] <... close resumed>) = 0 [pid 5928] close(21 [pid 5926] close(7 [pid 5928] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5926] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5928] close(22 [pid 5926] close(8 [pid 5928] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5926] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5928] close(23 [pid 5926] close(9 [pid 5928] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5926] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5928] close(24 [pid 5926] close(10 [pid 5928] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5926] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5928] close(25 [pid 5926] close(11 [pid 5928] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5926] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5928] close(26 [pid 5926] close(12 [pid 5928] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5926] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5928] close(27 [pid 5926] close(13 [pid 5928] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5926] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5928] close(28 [pid 5926] close(14 [pid 5928] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5926] <... close resumed>) = -1 EBADF (Bad file descriptor) [ 90.352743][ T5932] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 90.364823][ T5925] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 90.376767][ T5934] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 90.377111][ T5938] loop0: detected capacity change from 0 to 2048 [ 90.389129][ T5932] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 90.407129][ T5925] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 90.418284][ T5932] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 90.430175][ T5925] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 90.442047][ T5932] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5928] close(29 [pid 5926] close(15 [pid 5928] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5926] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5928] exit_group(0 [pid 5926] close(16 [pid 5936] <... futex resumed>) = ? [pid 5931] <... futex resumed>) = ? [pid 5928] <... exit_group resumed>) = ? [pid 5926] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5936] +++ exited with 0 +++ [pid 5926] close(17 [pid 5931] +++ exited with 0 +++ [pid 5928] +++ exited with 0 +++ [pid 5926] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5926] close(18) = -1 EBADF (Bad file descriptor) [pid 5926] close(19) = -1 EBADF (Bad file descriptor) [pid 5926] close(20) = -1 EBADF (Bad file descriptor) [pid 5926] close(21) = -1 EBADF (Bad file descriptor) [pid 5926] close(22) = -1 EBADF (Bad file descriptor) [pid 5926] close(23) = -1 EBADF (Bad file descriptor) [pid 5926] close(24) = -1 EBADF (Bad file descriptor) [pid 5926] close(25) = -1 EBADF (Bad file descriptor) [pid 5834] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 5926] close(26) = -1 EBADF (Bad file descriptor) [pid 5926] close(27 [pid 5834] umount2("./5", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5926] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5926] close(28 [pid 5834] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5926] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5926] close(29 [pid 5834] <... openat resumed>) = 3 [pid 5926] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5834] newfstatat(3, "", [pid 5926] exit_group(0 [pid 5834] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 5935] <... futex resumed>) = ? [pid 5929] <... futex resumed>) = ? [pid 5926] <... exit_group resumed>) = ? [pid 5834] getdents64(3, [pid 5935] +++ exited with 0 +++ [pid 5929] +++ exited with 0 +++ [pid 5926] +++ exited with 0 +++ [pid 5834] <... getdents64 resumed>0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 5938] <... ioctl resumed>) = 0 [pid 5836] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 5834] umount2("./5/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5938] close(3 [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5938] <... close resumed>) = 0 [pid 5938] close(4 [pid 5834] newfstatat(AT_FDCWD, "./5/cgroup", [pid 5938] <... close resumed>) = 0 [pid 5834] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5834] unlink("./5/cgroup") = 0 [pid 5938] mkdir("./file2", 0777) = 0 [pid 5836] umount2("./4", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5834] umount2("./5/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5938] mount("/dev/loop0", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 5836] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5836] <... openat resumed>) = 3 [pid 5834] newfstatat(AT_FDCWD, "./5/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5836] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 5836] getdents64(3, 0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 5836] umount2("./4/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5836] newfstatat(AT_FDCWD, "./4/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5836] unlink("./4/cgroup") = 0 [pid 5836] umount2("./4/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5836] newfstatat(AT_FDCWD, "./4/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5836] unlink("./4/cgroup.cpu") = 0 [pid 5834] unlink("./5/cgroup.cpu" [pid 5836] umount2("./4/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5834] <... unlink resumed>) = 0 [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5834] umount2("./5/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5836] newfstatat(AT_FDCWD, "./4/cgroup.net", [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5836] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5834] newfstatat(AT_FDCWD, "./5/cgroup.net", [pid 5836] unlink("./4/cgroup.net" [pid 5834] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5836] <... unlink resumed>) = 0 [pid 5834] unlink("./5/cgroup.net" [pid 5836] umount2("./4/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5834] <... unlink resumed>) = 0 [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5834] umount2("./5/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5834] newfstatat(AT_FDCWD, "./5/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5834] unlink("./5/binderfs") = 0 [pid 5834] umount2("./5/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5836] newfstatat(AT_FDCWD, "./4/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5836] unlink("./4/binderfs") = 0 [ 90.453454][ T5932] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 90.464883][ T5925] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 90.471216][ T5938] NILFS (loop0): broken superblock, retrying with spare superblock (blocksize = 1024) [ 90.476116][ T5932] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 90.498453][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 90.498651][ T5933] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 90.514269][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 90.522761][ T5933] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 90.536424][ T5838] udevd[5838]: incorrect nilfs2 checksum on /dev/loop0 [ 90.548036][ T5933] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 90.553155][ T5932] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 90.565859][ T5933] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 90.590117][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 90.605764][ T5932] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 90.605766][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 90.605831][ T5837] NILFS (loop4): disposed unprocessed dirty file(s) when stopping log writer [ 90.621509][ T5934] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 90.635262][ T5933] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 90.644281][ T5932] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 90.670049][ T5933] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 90.683348][ T5934] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5836] umount2("./4/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5837] <... umount2 resumed>) = 0 [pid 5837] umount2("./4/file2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5837] newfstatat(AT_FDCWD, "./4/file2", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5837] umount2("./4/file2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5837] openat(AT_FDCWD, "./4/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5837] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 5837] getdents64(4, 0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 5837] getdents64(4, 0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 5837] close(4) = 0 [pid 5837] rmdir("./4/file2") = 0 [pid 5837] getdents64(3, 0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 5837] close(3) = 0 [pid 5837] rmdir("./4") = 0 [ 90.705446][ T5932] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 90.706567][ T5933] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 90.720260][ T5932] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 90.744943][ T5934] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5837] mkdir("./5", 0777) = 0 [pid 5837] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5837] ioctl(3, LOOP_CLR_FD) = 0 [pid 5837] close(3) = 0 [pid 5837] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5940 attached [pid 5940] set_robust_list(0x55555fa3c6a0, 24 [pid 5837] <... clone resumed>, child_tidptr=0x55555fa3c690) = 12 [pid 5940] <... set_robust_list resumed>) = 0 [pid 5940] chdir("./5") = 0 [pid 5940] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [ 90.760417][ T5932] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 90.772221][ T5939] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 90.792774][ T5933] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5940] setpgid(0, 0 [pid 5938] <... mount resumed>) = 0 [pid 5940] <... setpgid resumed>) = 0 [pid 5938] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5940] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 5938] <... openat resumed>) = 3 [pid 5938] chdir("./file2") = 0 [pid 5938] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5940] <... symlink resumed>) = 0 [pid 5938] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5938] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5937] <... futex resumed>) = 0 [pid 5940] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 5938] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5937] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5940] <... symlink resumed>) = 0 [pid 5938] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5937] <... futex resumed>) = 0 [pid 5940] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 5938] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 5937] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5940] <... symlink resumed>) = 0 [pid 5938] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 5940] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5938] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5940] <... openat resumed>) = 3 [pid 5938] <... futex resumed>) = 1 [pid 5937] <... futex resumed>) = 0 [pid 5940] write(3, "1000", 4 [pid 5938] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5937] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5940] <... write resumed>) = 4 [pid 5938] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5937] <... futex resumed>) = 0 [pid 5940] close(3 [pid 5938] openat(AT_FDCWD, "/dev/cuse", O_RDWR [ 90.794416][ T5934] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 90.817951][ T5835] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 90.828983][ T5835] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 90.830327][ T5934] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 90.840339][ T5835] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5937] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5940] <... close resumed>) = 0 [pid 5938] <... openat resumed>) = 4 [pid 5940] symlink("/dev/binderfs", "./binderfs" [pid 5938] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5940] <... symlink resumed>) = 0 [pid 5938] <... futex resumed>) = 1 [pid 5937] <... futex resumed>) = 0 executing program [pid 5940] write(1, "executing program\n", 18 [pid 5938] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5937] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5940] <... write resumed>) = 18 [pid 5938] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5937] <... futex resumed>) = 0 [pid 5940] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5938] read(-1, [pid 5940] <... futex resumed>) = 0 [pid 5938] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 5937] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5940] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, [pid 5938] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5940] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5937] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5940] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5938] <... futex resumed>) = 0 [pid 5940] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5938] memfd_create("syzkaller", 0 [pid 5937] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5940] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5938] <... memfd_create resumed>) = 5 [pid 5940] <... mmap resumed>) = 0x7f0d6adff000 [pid 5937] <... futex resumed>) = 0 [pid 5940] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE [pid 5938] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5940] <... mprotect resumed>) = 0 [pid 5937] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5940] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5938] <... mmap resumed>) = 0x7f0d62800000 [pid 5940] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5938] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5940] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0}./strace-static-x86_64: Process 5941 attached [ 90.862284][ T5835] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 90.873726][ T5835] NILFS (loop3): disposed unprocessed dirty file(s) when stopping log writer [ 90.892308][ T5934] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 => {parent_tid=[13]}, 88) = 13 [pid 5941] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053) = 0 [pid 5941] set_robust_list(0x7f0d6ae1f9a0, 24) = 0 [pid 5835] <... umount2 resumed>) = 0 [pid 5940] rt_sigprocmask(SIG_SETMASK, [], [pid 5941] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5941] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5940] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5938] <... write resumed>) = 524288 [pid 5835] umount2("./4/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5940] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5938] munmap(0x7f0d62800000, 138412032 [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5941] <... futex resumed>) = 0 [pid 5940] <... futex resumed>) = 1 [ 90.905836][ T5933] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 90.918826][ T5933] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 90.922786][ T5934] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 90.931788][ T5933] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 90.940879][ T5934] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5941] memfd_create("syzkaller", 0 [pid 5940] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5938] <... munmap resumed>) = 0 [pid 5835] newfstatat(AT_FDCWD, "./4/file2", [pid 5938] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5941] <... memfd_create resumed>) = 3 [pid 5835] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5941] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5938] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5835] umount2("./4/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5941] <... mmap resumed>) = 0x7f0d62800000 [ 90.954555][ T5933] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 90.963062][ T5934] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 90.976903][ T5933] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 90.986879][ T5934] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5938] close(5 [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5941] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5835] openat(AT_FDCWD, "./4/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5835] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 5835] getdents64(4, 0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 5835] getdents64(4, 0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 5835] close(4) = 0 [pid 5835] rmdir("./4/file2") = 0 [pid 5835] getdents64(3, 0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 5835] close(3 [pid 5938] <... close resumed>) = 0 [pid 5835] <... close resumed>) = 0 [pid 5835] rmdir("./4") = 0 [pid 5835] mkdir("./5", 0777) = 0 [pid 5835] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5835] ioctl(3, LOOP_CLR_FD [pid 5941] <... write resumed>) = 1048576 [pid 5835] <... ioctl resumed>) = 0 [pid 5835] close(3 [pid 5941] munmap(0x7f0d62800000, 138412032) = 0 [ 91.009342][ T5934] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 91.021893][ T5933] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 91.033718][ T5933] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 91.045780][ T5934] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5941] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5938] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5941] <... openat resumed>) = 4 [pid 5941] ioctl(4, LOOP_SET_FD, 3 [pid 5938] <... futex resumed>) = 1 [pid 5937] <... futex resumed>) = 0 [pid 5938] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5937] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5938] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5937] <... futex resumed>) = 0 [pid 5835] <... close resumed>) = 0 [pid 5835] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5942 attached [pid 5938] fsync(-1 [pid 5937] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5835] <... clone resumed>, child_tidptr=0x55555fa3c690) = 14 [ 91.061183][ T5934] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 91.073544][ T5934] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 91.078953][ T5941] loop4: detected capacity change from 0 to 2048 [ 91.086624][ T5934] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 91.103080][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5941] <... ioctl resumed>) = 0 [pid 5942] set_robust_list(0x55555fa3c6a0, 24 [pid 5938] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 5941] close(3) = 0 [pid 5941] close(4) = 0 [pid 5941] mkdir("./file2", 0777) = 0 [pid 5942] <... set_robust_list resumed>) = 0 [pid 5938] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5941] mount("/dev/loop4", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 5942] chdir("./5" [pid 5938] <... futex resumed>) = 1 [pid 5937] <... futex resumed>) = 0 [pid 5942] <... chdir resumed>) = 0 [pid 5938] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5937] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5938] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5942] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5937] <... futex resumed>) = 0 [pid 5942] <... prctl resumed>) = 0 [ 91.115437][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 91.127645][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 91.141113][ T5836] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 91.144440][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5938] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5937] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5942] setpgid(0, 0 [pid 5938] <... openat resumed>) = 5 [pid 5942] <... setpgid resumed>) = 0 [pid 5938] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5942] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5938] <... futex resumed>) = 1 [pid 5937] <... futex resumed>) = 0 [ 91.166158][ T5941] NILFS (loop4): broken superblock, retrying with spare superblock (blocksize = 1024) [ 91.167543][ T5836] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 91.179107][ T5834] NILFS (loop1): disposed unprocessed dirty file(s) when stopping log writer [ 91.197506][ T5836] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5938] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5937] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5938] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5942] <... symlink resumed>) = 0 [pid 5938] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 5937] <... futex resumed>) = 0 [pid 5834] <... umount2 resumed>) = 0 [pid 5942] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5834] umount2("./5/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5942] <... symlink resumed>) = 0 [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5942] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5834] newfstatat(AT_FDCWD, "./5/file2", [pid 5942] <... symlink resumed>) = 0 [pid 5942] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5834] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5942] <... openat resumed>) = 3 [pid 5942] write(3, "1000", 4 [ 91.211297][ T5836] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 91.222236][ T5836] NILFS (loop2): disposed unprocessed dirty file(s) when stopping log writer [pid 5834] umount2("./5/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5942] <... write resumed>) = 4 [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5941] <... mount resumed>) = 0 [pid 5938] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 5937] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5836] <... umount2 resumed>) = 0 [pid 5942] close(3 [pid 5834] openat(AT_FDCWD, "./5/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5941] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5938] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5937] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5941] <... openat resumed>) = 3 [pid 5938] <... futex resumed>) = 0 [pid 5937] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5942] <... close resumed>) = 0 [pid 5941] chdir("./file2" [pid 5938] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 5937] <... futex resumed>) = 0 [pid 5836] umount2("./4/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5834] <... openat resumed>) = 4 [pid 5942] symlink("/dev/binderfs", "./binderfs" [pid 5941] <... chdir resumed>) = 0 [pid 5941] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5941] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5942] <... symlink resumed>) = 0 [pid 5938] <... openat resumed>) = 6 [pid 5937] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5834] newfstatat(4, "", [pid 5942] write(1, "executing program\n", 18executing program [pid 5941] <... futex resumed>) = 1 [pid 5940] <... futex resumed>) = 0 [pid 5938] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5937] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5836] newfstatat(AT_FDCWD, "./4/file2", [pid 5834] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 5942] <... write resumed>) = 18 [pid 5941] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 5940] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5938] <... futex resumed>) = 0 [pid 5937] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5836] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5834] getdents64(4, [pid 5942] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5941] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 5940] <... futex resumed>) = 0 [pid 5938] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 5937] <... futex resumed>) = 0 [pid 5836] umount2("./4/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5942] <... futex resumed>) = 0 [pid 5941] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5940] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5937] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5834] <... getdents64 resumed>0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 5942] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, [pid 5941] <... futex resumed>) = 0 [pid 5940] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5836] openat(AT_FDCWD, "./4/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5834] getdents64(4, [pid 5942] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5941] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5940] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5836] <... openat resumed>) = 4 [pid 5942] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5836] newfstatat(4, "", [pid 5834] <... getdents64 resumed>0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 5942] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5941] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5940] <... futex resumed>) = 0 [pid 5836] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 5942] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5941] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 5940] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5836] getdents64(4, [pid 5834] close(4 [pid 5942] <... mmap resumed>) = 0x7f0d6adff000 [pid 5941] <... openat resumed>) = 4 [pid 5836] <... getdents64 resumed>0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 5834] <... close resumed>) = 0 [pid 5942] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE [pid 5941] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5836] getdents64(4, [pid 5834] rmdir("./5/file2" [pid 5942] <... mprotect resumed>) = 0 [pid 5941] <... futex resumed>) = 1 [pid 5940] <... futex resumed>) = 0 [pid 5836] <... getdents64 resumed>0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 5942] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5941] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5940] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5836] close(4 [pid 5834] <... rmdir resumed>) = 0 [pid 5942] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5941] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5940] <... futex resumed>) = 0 [pid 5836] <... close resumed>) = 0 [pid 5834] getdents64(3, [pid 5942] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0} [pid 5941] read(-1, [pid 5940] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5836] rmdir("./4/file2" [pid 5834] <... getdents64 resumed>0x55555fa3d730 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 5944 attached [pid 5941] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 5836] <... rmdir resumed>) = 0 [pid 5834] close(3 [pid 5944] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 5942] <... clone3 resumed> => {parent_tid=[15]}, 88) = 15 [pid 5941] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5836] getdents64(3, [pid 5944] <... rseq resumed>) = 0 [pid 5942] rt_sigprocmask(SIG_SETMASK, [], [pid 5941] <... futex resumed>) = 1 [pid 5940] <... futex resumed>) = 0 [pid 5836] <... getdents64 resumed>0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 5834] <... close resumed>) = 0 [pid 5944] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 5942] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5941] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5940] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5836] close(3 [pid 5834] rmdir("./5" [pid 5944] <... set_robust_list resumed>) = 0 [pid 5942] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5941] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5940] <... futex resumed>) = 0 [pid 5836] <... close resumed>) = 0 [pid 5944] rt_sigprocmask(SIG_SETMASK, [], [pid 5942] <... futex resumed>) = 0 [pid 5941] memfd_create("syzkaller", 0 [pid 5940] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5836] rmdir("./4" [pid 5834] <... rmdir resumed>) = 0 [pid 5944] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5942] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5941] <... memfd_create resumed>) = 5 [pid 5836] <... rmdir resumed>) = 0 [pid 5834] mkdir("./6", 0777 [pid 5944] memfd_create("syzkaller", 0 [pid 5941] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [ 91.256243][ T5939] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 91.268513][ T5943] NILFS (loop4): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 5836] mkdir("./5", 0777 [pid 5944] <... memfd_create resumed>) = 3 [pid 5941] <... mmap resumed>) = 0x7f0d62800000 [pid 5836] <... mkdir resumed>) = 0 [pid 5834] <... mkdir resumed>) = 0 [pid 5944] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5836] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5944] <... mmap resumed>) = 0x7f0d62800000 [pid 5836] <... openat resumed>) = 3 [pid 5834] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5836] ioctl(3, LOOP_CLR_FD) = 0 [pid 5836] close(3 [pid 5944] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5941] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5836] <... close resumed>) = 0 [pid 5834] <... openat resumed>) = 3 [pid 5836] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5945 attached [pid 5834] ioctl(3, LOOP_CLR_FD [pid 5945] set_robust_list(0x55555fa3c6a0, 24 [pid 5836] <... clone resumed>, child_tidptr=0x55555fa3c690) = 14 [pid 5834] <... ioctl resumed>) = 0 [pid 5945] <... set_robust_list resumed>) = 0 [pid 5834] close(3 [pid 5945] chdir("./5") = 0 [pid 5945] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5945] setpgid(0, 0 [pid 5834] <... close resumed>) = 0 [pid 5945] <... setpgid resumed>) = 0 [pid 5945] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5834] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5945] <... symlink resumed>) = 0 [pid 5945] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu") = 0 [pid 5945] symlink("/syzcgroup/net/syz2", "./cgroup.net") = 0 [pid 5945] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 5946 attached ) = 3 [pid 5937] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5834] <... clone resumed>, child_tidptr=0x55555fa3c690) = 18 [pid 5946] set_robust_list(0x55555fa3c6a0, 24 [pid 5945] write(3, "1000", 4) = 4 executing program [pid 5946] <... set_robust_list resumed>) = 0 [pid 5945] close(3) = 0 [pid 5945] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5945] write(1, "executing program\n", 18) = 18 [pid 5945] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5945] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, NULL, 8) = 0 [pid 5946] chdir("./6" [pid 5945] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5941] <... write resumed>) = 524288 [pid 5945] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5946] <... chdir resumed>) = 0 [pid 5945] <... mmap resumed>) = 0x7f0d6adff000 [pid 5941] munmap(0x7f0d62800000, 138412032 [pid 5945] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE [pid 5946] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5945] <... mprotect resumed>) = 0 [pid 5946] <... prctl resumed>) = 0 [pid 5944] <... write resumed>) = 1048576 [pid 5941] <... munmap resumed>) = 0 [pid 5946] setpgid(0, 0 [pid 5945] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5944] munmap(0x7f0d62800000, 138412032 [pid 5941] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5945] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5946] <... setpgid resumed>) = 0 [pid 5945] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0} [pid 5946] symlink("/syzcgroup/unified/syz1", "./cgroup"./strace-static-x86_64: Process 5947 attached ) = 0 [pid 5944] <... munmap resumed>) = 0 [pid 5941] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5947] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 5945] <... clone3 resumed> => {parent_tid=[15]}, 88) = 15 [pid 5944] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5941] close(5 [pid 5947] <... rseq resumed>) = 0 [pid 5945] rt_sigprocmask(SIG_SETMASK, [], [pid 5946] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 5947] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 5945] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5944] <... openat resumed>) = 4 [pid 5941] <... close resumed>) = 0 [pid 5947] <... set_robust_list resumed>) = 0 [pid 5945] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5944] ioctl(4, LOOP_SET_FD, 3 [pid 5941] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5947] rt_sigprocmask(SIG_SETMASK, [], [pid 5945] <... futex resumed>) = 0 [pid 5947] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5946] <... symlink resumed>) = 0 [pid 5945] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5944] <... ioctl resumed>) = 0 [pid 5941] <... futex resumed>) = 1 [pid 5940] <... futex resumed>) = 0 [pid 5941] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5940] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5947] memfd_create("syzkaller", 0 [pid 5941] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5940] <... futex resumed>) = 0 [pid 5944] close(3) = 0 [pid 5941] fsync(-1 [pid 5940] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5947] <... memfd_create resumed>) = 3 [pid 5944] close(4 [pid 5941] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 5947] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5946] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 5944] <... close resumed>) = 0 [pid 5941] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5947] <... mmap resumed>) = 0x7f0d62800000 [pid 5944] mkdir("./file2", 0777 [pid 5941] <... futex resumed>) = 1 [pid 5940] <... futex resumed>) = 0 [pid 5944] <... mkdir resumed>) = 0 [pid 5941] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5940] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5944] mount("/dev/loop3", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 5941] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5940] <... futex resumed>) = 0 [pid 5946] <... symlink resumed>) = 0 [pid 5941] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5940] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5946] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5946] write(3, "1000", 4) = 4 [pid 5946] close(3) = 0 [pid 5946] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5946] write(1, "executing program\n", 18) = 18 [pid 5946] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5946] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, NULL, 8) = 0 [pid 5946] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5946] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5941] <... openat resumed>) = 5 [pid 5946] <... mmap resumed>) = 0x7f0d6adff000 [pid 5946] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5947] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5941] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5940] <... futex resumed>) = 0 [pid 5946] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5941] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5940] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5946] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5941] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5940] <... futex resumed>) = 0 [pid 5946] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0} [pid 5941] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 5940] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5948 attached [pid 5948] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 5946] <... clone3 resumed> => {parent_tid=[19]}, 88) = 19 [pid 5948] <... rseq resumed>) = 0 [ 91.423343][ T5944] loop3: detected capacity change from 0 to 2048 [ 91.455984][ T5944] NILFS (loop3): broken superblock, retrying with spare superblock (blocksize = 1024) [pid 5946] rt_sigprocmask(SIG_SETMASK, [], [pid 5948] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 5946] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5948] <... set_robust_list resumed>) = 0 [pid 5946] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5948] rt_sigprocmask(SIG_SETMASK, [], [pid 5946] <... futex resumed>) = 0 [pid 5948] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5946] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5948] memfd_create("syzkaller", 0) = 3 [pid 5948] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 [pid 5948] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5947] <... write resumed>) = 1048576 [pid 5944] <... mount resumed>) = 0 [pid 5941] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 5940] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5944] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5941] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5940] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5944] <... openat resumed>) = 3 [pid 5941] <... futex resumed>) = 0 [pid 5940] <... futex resumed>) = 0 [pid 5947] munmap(0x7f0d62800000, 138412032 [pid 5944] chdir("./file2" [pid 5941] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 5940] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5948] <... write resumed>) = 1048576 [pid 5947] <... munmap resumed>) = 0 [pid 5944] <... chdir resumed>) = 0 [pid 5941] <... openat resumed>) = 6 [pid 5948] munmap(0x7f0d62800000, 138412032 [pid 5947] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5944] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5941] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5948] <... munmap resumed>) = 0 [pid 5947] <... openat resumed>) = 4 [pid 5944] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5941] <... futex resumed>) = 1 [pid 5940] <... futex resumed>) = 0 [ 91.495577][ T5943] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 91.515458][ T5855] udevd[5855]: incorrect nilfs2 checksum on /dev/loop3 [ 91.517872][ T5949] NILFS (loop3): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 5948] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5947] ioctl(4, LOOP_SET_FD, 3 [pid 5944] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5941] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5940] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5948] <... openat resumed>) = 4 [pid 5944] <... futex resumed>) = 1 [pid 5942] <... futex resumed>) = 0 [pid 5941] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5940] <... futex resumed>) = 0 [pid 5948] ioctl(4, LOOP_SET_FD, 3 [pid 5944] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5942] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5941] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 5940] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5948] <... ioctl resumed>) = 0 [pid 5947] <... ioctl resumed>) = 0 [pid 5944] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5942] <... futex resumed>) = 0 [pid 5948] close(3 [pid 5947] close(3 [pid 5944] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 5942] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5948] <... close resumed>) = 0 [pid 5947] <... close resumed>) = 0 [pid 5944] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 5948] close(4 [pid 5947] close(4 [pid 5944] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5948] <... close resumed>) = 0 [pid 5947] <... close resumed>) = 0 [pid 5948] mkdir("./file2", 0777) = 0 [pid 5948] mount("/dev/loop1", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 5947] mkdir("./file2", 0777) = 0 [pid 5947] mount("/dev/loop2", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 5944] <... futex resumed>) = 1 [pid 5942] <... futex resumed>) = 0 [ 91.564962][ T5947] loop2: detected capacity change from 0 to 2048 [ 91.576346][ T5948] loop1: detected capacity change from 0 to 2048 [ 91.596505][ T5939] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5944] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 5942] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5944] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 5942] <... futex resumed>) = 0 [pid 5944] <... openat resumed>) = 4 [pid 5944] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5942] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5944] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5942] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5942] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5944] <... futex resumed>) = 0 [pid 5942] <... futex resumed>) = 1 [pid 5938] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 5944] read(-1, [pid 5942] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5944] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 5944] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5942] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5944] <... futex resumed>) = 0 [pid 5944] memfd_create("syzkaller", 0 [pid 5942] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5938] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5937] close(3 [pid 5944] <... memfd_create resumed>) = 5 [pid 5944] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5937] <... close resumed>) = 0 [pid 5944] <... mmap resumed>) = 0x7f0d62800000 [pid 5942] <... futex resumed>) = 0 [pid 5938] <... futex resumed>) = 0 [pid 5944] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5937] close(4 [pid 5944] <... write resumed>) = 524288 [pid 5942] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5938] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5937] <... close resumed>) = 0 [pid 5944] munmap(0x7f0d62800000, 138412032 [pid 5937] close(5 [pid 5944] <... munmap resumed>) = 0 [pid 5937] <... close resumed>) = 0 [pid 5937] close(6) = 0 [pid 5937] close(7) = -1 EBADF (Bad file descriptor) [pid 5937] close(8) = -1 EBADF (Bad file descriptor) [pid 5937] close(9) = -1 EBADF (Bad file descriptor) [pid 5937] close(10) = -1 EBADF (Bad file descriptor) [pid 5937] close(11) = -1 EBADF (Bad file descriptor) [pid 5937] close(12) = -1 EBADF (Bad file descriptor) [pid 5944] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5937] close(13) = -1 EBADF (Bad file descriptor) [pid 5937] close(14) = -1 EBADF (Bad file descriptor) [pid 5937] close(15) = -1 EBADF (Bad file descriptor) [pid 5944] close(5 [pid 5937] close(16) = -1 EBADF (Bad file descriptor) [ 91.609040][ T5948] NILFS (loop1): broken superblock, retrying with spare superblock (blocksize = 1024) [ 91.623771][ T5947] NILFS (loop2): broken superblock, retrying with spare superblock (blocksize = 1024) [ 91.640554][ T5838] udevd[5838]: incorrect nilfs2 checksum on /dev/loop1 [pid 5948] <... mount resumed>) = 0 [pid 5940] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5948] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5937] close(17 [pid 5948] <... openat resumed>) = 3 [pid 5937] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5948] chdir("./file2") = 0 [pid 5937] close(18 [pid 5948] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5937] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5948] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5948] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5948] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5946] <... futex resumed>) = 0 [pid 5946] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5948] <... futex resumed>) = 0 [pid 5946] <... futex resumed>) = 1 [pid 5946] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5937] close(19 [pid 5948] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 5937] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5948] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 5937] close(20 [pid 5947] <... mount resumed>) = 0 [pid 5948] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5937] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5937] close(21 [pid 5948] <... futex resumed>) = 1 [pid 5948] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5946] <... futex resumed>) = 0 [pid 5937] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5946] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5937] close(22 [pid 5948] <... futex resumed>) = 0 [pid 5946] <... futex resumed>) = 1 [pid 5937] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5947] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5948] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 5947] <... openat resumed>) = 3 [pid 5946] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5937] close(23 [pid 5948] <... openat resumed>) = 4 [pid 5947] chdir("./file2" [pid 5948] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5947] <... chdir resumed>) = 0 [pid 5948] <... futex resumed>) = 0 [pid 5947] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5948] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5946] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5937] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5947] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5946] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5937] close(24 [pid 5948] <... futex resumed>) = 0 [pid 5946] <... futex resumed>) = 1 [pid 5937] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5948] read(-1, [pid 5947] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5946] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5937] close(25 [pid 5948] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 5947] <... futex resumed>) = 1 [pid 5945] <... futex resumed>) = 0 [pid 5937] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5948] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5947] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 5945] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5944] <... close resumed>) = 0 [pid 5937] close(26 [pid 5948] <... futex resumed>) = 1 [pid 5946] <... futex resumed>) = 0 [pid 5944] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5947] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 5937] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5945] <... futex resumed>) = 0 [pid 5948] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5947] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5946] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5945] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5944] <... futex resumed>) = 1 [pid 5942] <... futex resumed>) = 0 [pid 5937] close(27 [pid 5948] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5947] <... futex resumed>) = 0 [pid 5946] <... futex resumed>) = 0 [pid 5944] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5942] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5937] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5948] memfd_create("syzkaller", 0 [pid 5947] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5946] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5945] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5944] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5942] <... futex resumed>) = 0 [pid 5937] close(28 [pid 5948] <... memfd_create resumed>) = 5 [pid 5945] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5944] fsync(-1 [pid 5942] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5937] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5948] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5947] <... futex resumed>) = 0 [pid 5945] <... futex resumed>) = 1 [pid 5944] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 5937] close(29 [pid 5948] <... mmap resumed>) = 0x7f0d62800000 [pid 5947] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 5945] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5944] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5937] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5944] <... futex resumed>) = 1 [pid 5942] <... futex resumed>) = 0 [pid 5937] exit_group(0 [pid 5944] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5942] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5938] <... futex resumed>) = ? [pid 5937] <... exit_group resumed>) = ? [pid 5947] <... openat resumed>) = 4 [pid 5944] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5942] <... futex resumed>) = 0 [pid 5938] +++ exited with 0 +++ [pid 5937] +++ exited with 0 +++ [pid 5947] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5944] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5942] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=16, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [pid 5948] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5947] <... futex resumed>) = 1 [pid 5945] <... futex resumed>) = 0 [pid 5944] <... openat resumed>) = 5 [pid 5947] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5945] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5944] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5942] <... futex resumed>) = 0 [pid 5947] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5945] <... futex resumed>) = 0 [pid 5944] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5833] umount2("./5", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5947] read(-1, [pid 5945] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5944] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5942] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5947] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 5944] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 5942] <... futex resumed>) = 0 [pid 5833] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [ 91.675249][ T5950] NILFS (loop1): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 91.686917][ T5855] udevd[5855]: incorrect nilfs2 checksum on /dev/loop2 [ 91.696811][ T5951] NILFS (loop2): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 5947] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5948] <... write resumed>) = 524288 [pid 5947] <... futex resumed>) = 1 [pid 5945] <... futex resumed>) = 0 [pid 5942] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5833] <... openat resumed>) = 3 [pid 5948] munmap(0x7f0d62800000, 138412032 [pid 5947] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5945] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5944] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 5833] newfstatat(3, "", [pid 5948] <... munmap resumed>) = 0 [pid 5947] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5945] <... futex resumed>) = 0 [pid 5944] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5833] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 5948] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5947] memfd_create("syzkaller", 0 [pid 5945] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5944] <... futex resumed>) = 1 [pid 5942] <... futex resumed>) = 0 [pid 5833] getdents64(3, [pid 5948] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5947] <... memfd_create resumed>) = 5 [pid 5944] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5942] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5833] <... getdents64 resumed>0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 5948] close(5 [pid 5947] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5944] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5942] <... futex resumed>) = 0 [pid 5833] umount2("./5/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5948] <... close resumed>) = 0 [pid 5947] <... mmap resumed>) = 0x7f0d62800000 [pid 5944] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 5942] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5948] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5947] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5833] newfstatat(AT_FDCWD, "./5/cgroup", [pid 5948] <... futex resumed>) = 1 [pid 5833] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5948] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5833] unlink("./5/cgroup") = 0 [pid 5946] <... futex resumed>) = 0 [pid 5944] <... openat resumed>) = 6 [pid 5833] umount2("./5/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5946] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5944] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5948] <... futex resumed>) = 0 [pid 5947] <... write resumed>) = 524288 [pid 5946] <... futex resumed>) = 1 [pid 5944] <... futex resumed>) = 1 [pid 5942] <... futex resumed>) = 0 [pid 5833] newfstatat(AT_FDCWD, "./5/cgroup.cpu", [pid 5946] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5944] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5942] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5833] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5944] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5942] <... futex resumed>) = 0 [pid 5944] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 5833] unlink("./5/cgroup.cpu" [pid 5942] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5833] <... unlink resumed>) = 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 5948] fsync(-1) = -1 EBADF (Bad file descriptor) [pid 5948] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5946] <... futex resumed>) = 0 [pid 5946] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5948] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5946] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5833] umount2("./5/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5947] munmap(0x7f0d62800000, 138412032 [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5948] <... openat resumed>) = 5 [pid 5947] <... munmap resumed>) = 0 [pid 5833] newfstatat(AT_FDCWD, "./5/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./5/binderfs" [pid 5948] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5833] <... unlink resumed>) = 0 [pid 5948] <... futex resumed>) = 1 [pid 5946] <... futex resumed>) = 0 [pid 5833] umount2("./5/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5946] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [ 91.747314][ T5949] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5948] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 5946] <... futex resumed>) = 0 [pid 5946] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5947] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5947] close(5) = 0 [pid 5947] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5948] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 5945] <... futex resumed>) = 0 [pid 5948] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5947] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5945] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5948] <... futex resumed>) = 1 [pid 5947] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5945] <... futex resumed>) = 0 [pid 5948] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5947] fsync(-1 [pid 5945] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5947] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 5947] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5946] <... futex resumed>) = 0 [pid 5945] <... futex resumed>) = 0 [pid 5942] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5946] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5948] <... futex resumed>) = 0 [pid 5947] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5946] <... futex resumed>) = 1 [pid 5945] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5946] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5948] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 5947] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5945] <... futex resumed>) = 0 [pid 5947] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [ 91.808147][ T5939] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 91.821825][ T5950] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 91.830161][ T5939] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5945] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5948] <... openat resumed>) = 6 [pid 5947] <... openat resumed>) = 5 [pid 5948] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5947] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5941] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 5948] <... futex resumed>) = 1 [pid 5947] <... futex resumed>) = 1 [pid 5946] <... futex resumed>) = 0 [pid 5945] <... futex resumed>) = 0 [pid 5948] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5947] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5946] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5945] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5941] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5940] close(3 [pid 5945] <... futex resumed>) = 0 [pid 5940] <... close resumed>) = 0 [pid 5945] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5940] close(4) = 0 [pid 5940] close(5) = 0 [pid 5940] close(6) = 0 [pid 5940] close(7) = -1 EBADF (Bad file descriptor) [pid 5940] close(8) = -1 EBADF (Bad file descriptor) [pid 5940] close(9) = -1 EBADF (Bad file descriptor) [pid 5940] close(10) = -1 EBADF (Bad file descriptor) [pid 5940] close(11) = -1 EBADF (Bad file descriptor) [pid 5940] close(12) = -1 EBADF (Bad file descriptor) [pid 5940] close(13) = -1 EBADF (Bad file descriptor) [pid 5940] close(14) = -1 EBADF (Bad file descriptor) [pid 5940] close(15) = -1 EBADF (Bad file descriptor) [pid 5940] close(16) = -1 EBADF (Bad file descriptor) [pid 5940] close(17) = -1 EBADF (Bad file descriptor) [pid 5940] close(18) = -1 EBADF (Bad file descriptor) [pid 5940] close(19) = -1 EBADF (Bad file descriptor) [pid 5940] close(20) = -1 EBADF (Bad file descriptor) [pid 5940] close(21) = -1 EBADF (Bad file descriptor) [pid 5940] close(22) = -1 EBADF (Bad file descriptor) [pid 5940] close(23) = -1 EBADF (Bad file descriptor) [pid 5940] close(24) = -1 EBADF (Bad file descriptor) [pid 5948] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5947] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5946] <... futex resumed>) = 0 [pid 5941] <... futex resumed>) = 0 [pid 5940] close(25 [pid 5948] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 5947] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 5946] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5941] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5940] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5940] close(26) = -1 EBADF (Bad file descriptor) [pid 5940] close(27) = -1 EBADF (Bad file descriptor) [pid 5940] close(28) = -1 EBADF (Bad file descriptor) [pid 5940] close(29) = -1 EBADF (Bad file descriptor) [pid 5940] exit_group(0) = ? [pid 5941] <... futex resumed>) = ? [ 91.855295][ T5943] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 91.867028][ T5939] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 91.894613][ T5939] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5941] +++ exited with 0 +++ [pid 5940] +++ exited with 0 +++ [pid 5837] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12, si_uid=0, si_status=0, si_utime=0, si_stime=23 /* 0.23 s */} --- [pid 5945] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5945] futex(0x7f0d6aef46dc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5945] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0d6adde000 [pid 5945] mprotect(0x7f0d6addf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5945] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5945] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6adfe990, parent_tid=0x7f0d6adfe990, exit_signal=0, stack=0x7f0d6adde000, stack_size=0x20300, tls=0x7f0d6adfe6c0}./strace-static-x86_64: Process 5952 attached [pid 5952] rseq(0x7f0d6adfefe0, 0x20, 0, 0x53053053 [pid 5945] <... clone3 resumed> => {parent_tid=[16]}, 88) = 16 [pid 5952] <... rseq resumed>) = 0 [pid 5945] rt_sigprocmask(SIG_SETMASK, [], [pid 5952] set_robust_list(0x7f0d6adfe9a0, 24 [pid 5945] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5952] <... set_robust_list resumed>) = 0 [pid 5945] futex(0x7f0d6aef46d8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5952] rt_sigprocmask(SIG_SETMASK, [], [pid 5945] <... futex resumed>) = 0 [pid 5952] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5945] futex(0x7f0d6aef46dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5952] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000) = 6 [pid 5952] futex(0x7f0d6aef46dc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5945] <... futex resumed>) = 0 [pid 5952] futex(0x7f0d6aef46d8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5945] futex(0x7f0d6aef46d8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5952] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5945] <... futex resumed>) = 0 [pid 5952] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [ 91.909207][ T5939] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 91.924410][ T5939] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 91.924705][ T5951] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 91.945791][ T5939] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5945] futex(0x7f0d6aef46dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5837] umount2("./5", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5946] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5837] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5837] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 5837] getdents64(3, 0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 5837] umount2("./5/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5837] newfstatat(AT_FDCWD, "./5/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5947] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 5945] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5837] unlink("./5/cgroup") = 0 [pid 5837] umount2("./5/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 91.962184][ T5939] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 91.975645][ T5939] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5837] newfstatat(AT_FDCWD, "./5/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5837] unlink("./5/cgroup.cpu") = 0 [pid 5837] umount2("./5/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5837] newfstatat(AT_FDCWD, "./5/cgroup.net", [pid 5947] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5837] unlink("./5/cgroup.net" [pid 5947] <... futex resumed>) = 0 [pid 5837] <... unlink resumed>) = 0 [pid 5837] umount2("./5/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5947] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5837] newfstatat(AT_FDCWD, "./5/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5837] unlink("./5/binderfs") = 0 [ 92.020417][ T5939] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 92.050394][ T5939] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 92.064934][ T5943] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 92.079773][ T5939] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 92.099791][ T5939] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 92.099872][ T5943] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 92.129770][ T5939] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 92.146282][ T5949] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 92.150925][ T5943] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 92.169370][ T5939] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5837] umount2("./5/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5944] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 5944] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5942] close(3 [pid 5944] <... futex resumed>) = 0 [pid 5942] <... close resumed>) = 0 [pid 5942] close(4) = 0 [pid 5942] close(5) = 0 [pid 5942] close(6) = 0 [pid 5942] close(7) = -1 EBADF (Bad file descriptor) [pid 5942] close(8) = -1 EBADF (Bad file descriptor) [pid 5942] close(9) = -1 EBADF (Bad file descriptor) [pid 5942] close(10) = -1 EBADF (Bad file descriptor) [pid 5942] close(11) = -1 EBADF (Bad file descriptor) [pid 5942] close(12) = -1 EBADF (Bad file descriptor) [pid 5942] close(13) = -1 EBADF (Bad file descriptor) [pid 5942] close(14) = -1 EBADF (Bad file descriptor) [pid 5944] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5942] close(15) = -1 EBADF (Bad file descriptor) [pid 5948] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 5942] close(16) = -1 EBADF (Bad file descriptor) [pid 5942] close(17) = -1 EBADF (Bad file descriptor) [pid 5942] close(18) = -1 EBADF (Bad file descriptor) [pid 5942] close(19) = -1 EBADF (Bad file descriptor) [pid 5942] close(20) = -1 EBADF (Bad file descriptor) [pid 5942] close(21) = -1 EBADF (Bad file descriptor) [pid 5942] close(22) = -1 EBADF (Bad file descriptor) [pid 5942] close(23) = -1 EBADF (Bad file descriptor) [ 92.178972][ T5950] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 92.190431][ T5833] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 92.191860][ T5943] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5948] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5942] close(24) = -1 EBADF (Bad file descriptor) [pid 5942] close(25) = -1 EBADF (Bad file descriptor) [pid 5942] close(26) = -1 EBADF (Bad file descriptor) [pid 5942] close(27) = -1 EBADF (Bad file descriptor) [pid 5942] close(28) = -1 EBADF (Bad file descriptor) [pid 5942] close(29) = -1 EBADF (Bad file descriptor) [pid 5942] exit_group(0 [pid 5948] <... futex resumed>) = 0 [pid 5944] <... futex resumed>) = ? [pid 5942] <... exit_group resumed>) = ? [pid 5948] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5946] close(3 [pid 5944] +++ exited with 0 +++ [pid 5942] +++ exited with 0 +++ [pid 5835] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14, si_uid=0, si_status=0, si_utime=0, si_stime=23 /* 0.23 s */} --- [pid 5835] umount2("./5", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5835] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5835] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 5835] getdents64(3, 0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 5835] umount2("./5/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5835] newfstatat(AT_FDCWD, "./5/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5835] unlink("./5/cgroup") = 0 [pid 5835] umount2("./5/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5835] newfstatat(AT_FDCWD, "./5/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5835] unlink("./5/cgroup.cpu") = 0 [pid 5835] umount2("./5/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5835] newfstatat(AT_FDCWD, "./5/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5835] unlink("./5/cgroup.net") = 0 [pid 5835] umount2("./5/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5835] newfstatat(AT_FDCWD, "./5/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5946] <... close resumed>) = 0 [pid 5835] unlink("./5/binderfs" [pid 5946] close(4 [pid 5835] <... unlink resumed>) = 0 [pid 5835] umount2("./5/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5946] <... close resumed>) = 0 [pid 5952] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 5946] close(5 [pid 5952] futex(0x7f0d6aef46dc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5946] <... close resumed>) = 0 [pid 5952] <... futex resumed>) = 0 [pid 5946] close(6 [pid 5952] futex(0x7f0d6aef46d8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5946] <... close resumed>) = 0 [pid 5946] close(7) = -1 EBADF (Bad file descriptor) [pid 5945] close(3 [pid 5946] close(8 [pid 5945] <... close resumed>) = 0 [pid 5946] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5945] close(4 [pid 5946] close(9) = -1 EBADF (Bad file descriptor) [pid 5945] <... close resumed>) = 0 [pid 5946] close(10 [pid 5945] close(5 [pid 5946] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5946] close(11 [pid 5945] <... close resumed>) = 0 [pid 5946] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5946] close(12 [pid 5945] close(6 [pid 5946] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5946] close(13 [pid 5945] <... close resumed>) = 0 [pid 5946] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5946] close(14 [pid 5945] close(7 [pid 5946] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5945] <... close resumed>) = -1 EBADF (Bad file descriptor) [ 92.223270][ T5943] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 92.228427][ T5833] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 92.235959][ T5951] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 92.258820][ T5833] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 92.262283][ T5943] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5946] close(15) = -1 EBADF (Bad file descriptor) [pid 5945] close(8) = -1 EBADF (Bad file descriptor) [pid 5945] close(9) = -1 EBADF (Bad file descriptor) [pid 5945] close(10) = -1 EBADF (Bad file descriptor) [pid 5945] close(11) = -1 EBADF (Bad file descriptor) [pid 5945] close(12) = -1 EBADF (Bad file descriptor) [pid 5946] close(16 [pid 5945] close(13) = -1 EBADF (Bad file descriptor) [pid 5945] close(14) = -1 EBADF (Bad file descriptor) [pid 5945] close(15) = -1 EBADF (Bad file descriptor) [pid 5945] close(16) = -1 EBADF (Bad file descriptor) [pid 5945] close(17) = -1 EBADF (Bad file descriptor) [pid 5945] close(18) = -1 EBADF (Bad file descriptor) [pid 5945] close(19) = -1 EBADF (Bad file descriptor) [pid 5945] close(20) = -1 EBADF (Bad file descriptor) [pid 5945] close(21) = -1 EBADF (Bad file descriptor) [pid 5945] close(22) = -1 EBADF (Bad file descriptor) [pid 5945] close(23) = -1 EBADF (Bad file descriptor) [pid 5945] close(24) = -1 EBADF (Bad file descriptor) [pid 5945] close(25) = -1 EBADF (Bad file descriptor) [pid 5945] close(26) = -1 EBADF (Bad file descriptor) [pid 5945] close(27) = -1 EBADF (Bad file descriptor) [pid 5945] close(28) = -1 EBADF (Bad file descriptor) [pid 5945] close(29) = -1 EBADF (Bad file descriptor) [pid 5945] exit_group(0 [pid 5952] <... futex resumed>) = ? [pid 5947] <... futex resumed>) = ? [pid 5945] <... exit_group resumed>) = ? [pid 5952] +++ exited with 0 +++ [pid 5947] +++ exited with 0 +++ [pid 5946] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5945] +++ exited with 0 +++ [pid 5836] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [ 92.288671][ T5949] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 92.289946][ T5943] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 92.304376][ T51] cfg80211: failed to load regulatory.db [ 92.311875][ T5943] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5836] umount2("./5", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5946] close(17 [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5836] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5836] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 5836] getdents64(3, 0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 5836] umount2("./5/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5836] newfstatat(AT_FDCWD, "./5/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5836] unlink("./5/cgroup") = 0 [pid 5836] umount2("./5/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5836] newfstatat(AT_FDCWD, "./5/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5836] unlink("./5/cgroup.cpu") = 0 [pid 5836] umount2("./5/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5836] newfstatat(AT_FDCWD, "./5/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5946] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] unlink("./5/cgroup.net") = 0 [pid 5836] umount2("./5/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5836] newfstatat(AT_FDCWD, "./5/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5836] unlink("./5/binderfs") = 0 [ 92.329192][ T5943] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 92.332403][ T5833] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 92.341415][ T5943] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 92.362943][ T5949] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 92.365995][ T5833] NILFS (loop0): disposed unprocessed dirty file(s) when stopping log writer [pid 5836] umount2("./5/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5946] close(18) = -1 EBADF (Bad file descriptor) [pid 5946] close(19) = -1 EBADF (Bad file descriptor) [pid 5946] close(20) = -1 EBADF (Bad file descriptor) [pid 5946] close(21) = -1 EBADF (Bad file descriptor) [pid 5946] close(22) = -1 EBADF (Bad file descriptor) [pid 5946] close(23) = -1 EBADF (Bad file descriptor) [pid 5946] close(24) = -1 EBADF (Bad file descriptor) [pid 5946] close(25 [pid 5833] <... umount2 resumed>) = 0 [ 92.377249][ T5949] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 92.403087][ T5951] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 92.410933][ T5949] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 92.426354][ T5943] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5946] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5833] umount2("./5/file2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./5/file2", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] umount2("./5/file2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] openat(AT_FDCWD, "./5/file2", 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, 0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 5833] getdents64(4, 0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 5833] close(4) = 0 [pid 5833] rmdir("./5/file2") = 0 [pid 5833] getdents64(3, 0x55555fa3d730 /* 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 [ 92.428651][ T5951] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 92.439801][ T5943] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 92.448734][ T5949] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 92.473967][ T5949] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5946] close(26 [pid 5833] <... openat resumed>) = 3 [pid 5946] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5833] ioctl(3, LOOP_CLR_FD) = 0 [pid 5946] close(27 [pid 5833] close(3 [pid 5946] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5946] close(28) = -1 EBADF (Bad file descriptor) [pid 5946] close(29) = -1 EBADF (Bad file descriptor) [pid 5946] exit_group(0) = ? [pid 5833] <... close resumed>) = 0 [pid 5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5953 attached [pid 5953] set_robust_list(0x55555fa3c6a0, 24 [pid 5833] <... clone resumed>, child_tidptr=0x55555fa3c690) = 18 [pid 5953] <... set_robust_list resumed>) = 0 [pid 5953] chdir("./6") = 0 [pid 5953] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5953] setpgid(0, 0) = 0 [pid 5948] <... futex resumed>) = ? [ 92.474640][ T5943] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 92.485721][ T5949] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 92.506255][ T5951] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 92.518162][ T5949] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 92.529024][ T5951] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5953] symlink("/syzcgroup/unified/syz0", "./cgroup"executing program ) = 0 [pid 5953] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5953] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5953] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5953] write(3, "1000", 4) = 4 [pid 5953] close(3) = 0 [pid 5953] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5953] write(1, "executing program\n", 18) = 18 [pid 5953] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5953] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, NULL, 8) = 0 [pid 5953] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5953] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0d6adff000 [pid 5953] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE [pid 5948] +++ exited with 0 +++ [pid 5946] +++ exited with 0 +++ [pid 5953] <... mprotect resumed>) = 0 [pid 5953] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5834] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=18, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 5953] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5834] restart_syscall(<... resuming interrupted clone ...> [pid 5953] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0}./strace-static-x86_64: Process 5954 attached [pid 5834] <... restart_syscall resumed>) = 0 [pid 5954] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 5953] <... clone3 resumed> => {parent_tid=[19]}, 88) = 19 [pid 5954] <... rseq resumed>) = 0 [pid 5953] rt_sigprocmask(SIG_SETMASK, [], [pid 5954] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 5953] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5834] umount2("./6", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5954] <... set_robust_list resumed>) = 0 [pid 5953] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 92.541132][ T5949] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 92.543560][ T5943] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 92.552393][ T5951] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 92.577181][ T5949] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5954] rt_sigprocmask(SIG_SETMASK, [], [pid 5953] <... futex resumed>) = 0 [pid 5834] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5954] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5953] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5834] <... openat resumed>) = 3 [pid 5954] memfd_create("syzkaller", 0 [pid 5834] newfstatat(3, "", [pid 5954] <... memfd_create resumed>) = 3 [pid 5834] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 5954] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5834] getdents64(3, [pid 5954] <... mmap resumed>) = 0x7f0d62800000 [pid 5834] <... getdents64 resumed>0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 5834] umount2("./6/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5834] newfstatat(AT_FDCWD, "./6/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5834] unlink("./6/cgroup") = 0 [pid 5834] umount2("./6/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5834] newfstatat(AT_FDCWD, "./6/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5834] unlink("./6/cgroup.cpu") = 0 [pid 5834] umount2("./6/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5834] newfstatat(AT_FDCWD, "./6/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5834] unlink("./6/cgroup.net") = 0 [pid 5834] umount2("./6/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5834] newfstatat(AT_FDCWD, "./6/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5954] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5834] unlink("./6/binderfs") = 0 [pid 5834] umount2("./6/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5954] <... write resumed>) = 1048576 [pid 5954] munmap(0x7f0d62800000, 138412032) = 0 [ 92.588646][ T5951] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 92.600222][ T5949] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 92.613083][ T5951] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 92.623495][ T5943] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5954] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5954] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5954] close(3) = 0 [pid 5954] close(4) = 0 [pid 5954] mkdir("./file2", 0777) = 0 [ 92.624566][ T5949] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 92.641069][ T5954] loop0: detected capacity change from 0 to 2048 [ 92.648404][ T5951] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 92.665765][ T5949] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 92.676635][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 92.687843][ T5950] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 92.689126][ T5954] NILFS (loop0): broken superblock, retrying with spare superblock (blocksize = 1024) [ 92.699824][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 92.712562][ T5951] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 92.720082][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 92.720200][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 92.720258][ T5837] NILFS (loop4): disposed unprocessed dirty file(s) when stopping log writer [ 92.752655][ T5949] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 92.768892][ T5838] udevd[5838]: incorrect nilfs2 checksum on /dev/loop0 [ 92.779588][ T5950] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 92.781018][ T5949] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 92.792330][ T5950] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 92.808218][ T5955] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 92.812025][ T5950] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5954] mount("/dev/loop0", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 5837] <... umount2 resumed>) = 0 [pid 5954] <... mount resumed>) = 0 [pid 5954] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY) = 3 [pid 5954] chdir("./file2") = 0 [pid 5954] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5954] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5953] <... futex resumed>) = 0 [pid 5954] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5953] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5954] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5953] <... futex resumed>) = 0 [pid 5954] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 5953] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5954] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 5954] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5953] <... futex resumed>) = 0 [pid 5954] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5953] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5954] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5953] <... futex resumed>) = 0 [pid 5954] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 5953] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5954] <... openat resumed>) = 4 [pid 5837] umount2("./5/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5954] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5954] <... futex resumed>) = 1 [pid 5953] <... futex resumed>) = 0 [pid 5837] newfstatat(AT_FDCWD, "./5/file2", [pid 5954] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5953] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5954] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5953] <... futex resumed>) = 0 [pid 5837] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5954] read(-1, [pid 5953] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5954] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 5837] umount2("./5/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5954] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5954] <... futex resumed>) = 1 [pid 5953] <... futex resumed>) = 0 [pid 5954] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5953] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] openat(AT_FDCWD, "./5/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5954] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5953] <... futex resumed>) = 0 [pid 5954] memfd_create("syzkaller", 0 [pid 5953] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5837] <... openat resumed>) = 4 [pid 5954] <... memfd_create resumed>) = 5 [pid 5954] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5837] newfstatat(4, "", [pid 5954] <... mmap resumed>) = 0x7f0d62800000 [pid 5837] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [ 92.824758][ T5835] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 92.844953][ T5950] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 92.856128][ T5835] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 92.871674][ T5835] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5954] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5837] getdents64(4, [pid 5954] <... write resumed>) = 524288 [pid 5837] <... getdents64 resumed>0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 5954] munmap(0x7f0d62800000, 138412032 [pid 5837] getdents64(4, [pid 5954] <... munmap resumed>) = 0 [pid 5837] <... getdents64 resumed>0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 5954] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5837] close(4 [pid 5954] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5837] <... close resumed>) = 0 [pid 5954] close(5) = 0 [pid 5837] rmdir("./5/file2" [pid 5954] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] <... rmdir resumed>) = 0 [pid 5954] <... futex resumed>) = 1 [pid 5953] <... futex resumed>) = 0 [pid 5954] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5953] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] getdents64(3, [pid 5954] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5953] <... futex resumed>) = 0 [pid 5837] <... getdents64 resumed>0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 5954] fsync(-1 [pid 5953] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5954] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 5837] close(3 [pid 5954] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] <... close resumed>) = 0 [pid 5954] <... futex resumed>) = 1 [pid 5953] <... futex resumed>) = 0 [pid 5954] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5953] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] rmdir("./5" [pid 5954] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5953] <... futex resumed>) = 0 [pid 5837] <... rmdir resumed>) = 0 [pid 5954] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5953] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5954] <... openat resumed>) = 5 [pid 5837] mkdir("./6", 0777 [pid 5954] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] <... mkdir resumed>) = 0 [pid 5954] <... futex resumed>) = 1 [pid 5953] <... futex resumed>) = 0 [pid 5954] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5953] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5954] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5953] <... futex resumed>) = 0 [pid 5837] <... openat resumed>) = 3 [pid 5954] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 5953] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5837] ioctl(3, LOOP_CLR_FD) = 0 [ 92.882970][ T5835] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 92.883021][ T5950] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 92.893755][ T5835] NILFS (loop3): disposed unprocessed dirty file(s) when stopping log writer [ 92.938990][ T5950] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 92.947244][ T5951] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 92.961419][ T5951] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 92.970168][ T5950] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5837] close(3) = 0 [pid 5953] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5953] futex(0x7f0d6aef46dc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5953] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0d6adde000 [pid 5953] mprotect(0x7f0d6addf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5953] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5953] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6adfe990, parent_tid=0x7f0d6adfe990, exit_signal=0, stack=0x7f0d6adde000, stack_size=0x20300, tls=0x7f0d6adfe6c0}./strace-static-x86_64: Process 5956 attached [pid 5956] rseq(0x7f0d6adfefe0, 0x20, 0, 0x53053053 [pid 5953] <... clone3 resumed> => {parent_tid=[20]}, 88) = 20 [pid 5956] <... rseq resumed>) = 0 [pid 5953] rt_sigprocmask(SIG_SETMASK, [], [pid 5956] set_robust_list(0x7f0d6adfe9a0, 24 [pid 5953] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5956] <... set_robust_list resumed>) = 0 [pid 5953] futex(0x7f0d6aef46d8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5956] rt_sigprocmask(SIG_SETMASK, [], [pid 5953] <... futex resumed>) = 0 [pid 5956] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5953] futex(0x7f0d6aef46dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5956] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 5837] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5956] <... openat resumed>) = 6 [pid 5954] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 5956] futex(0x7f0d6aef46dc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5954] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5956] <... futex resumed>) = 1 [pid 5954] <... futex resumed>) = 0 [pid 5953] <... futex resumed>) = 0 [pid 5835] <... umount2 resumed>) = 0 [pid 5956] futex(0x7f0d6aef46d8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5954] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5953] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5954] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5953] <... futex resumed>) = 0 [pid 5954] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 5953] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5957 attached [pid 5837] <... clone resumed>, child_tidptr=0x55555fa3c690) = 14 [pid 5835] umount2("./5/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5957] set_robust_list(0x55555fa3c6a0, 24) = 0 [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 92.973356][ T5955] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 93.000048][ T5951] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 93.011864][ T5951] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 93.020992][ T5950] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5957] chdir("./6" [pid 5835] newfstatat(AT_FDCWD, "./5/file2", [pid 5957] <... chdir resumed>) = 0 [pid 5835] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5957] prctl(PR_SET_PDEATHSIG, SIGKILL [ 93.023757][ T5951] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 93.046246][ T5951] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 93.056932][ T5950] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 93.069272][ T5950] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5835] umount2("./5/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5953] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5957] <... prctl resumed>) = 0 [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5957] setpgid(0, 0) = 0 [pid 5957] symlink("/syzcgroup/unified/syz4", "./cgroup") = 0 [pid 5957] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu") = 0 [pid 5957] symlink("/syzcgroup/net/syz4", "./cgroup.net") = 0 [pid 5957] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5957] write(3, "1000", 4) = 4 [pid 5957] close(3) = 0 [pid 5957] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5957] write(1, "executing program\n", 18) = 18 [pid 5957] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5957] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, NULL, 8) = 0 [pid 5957] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [ 93.080482][ T5836] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 93.091739][ T5836] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 93.102546][ T5836] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 93.114067][ T5836] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 93.125136][ T5836] NILFS (loop2): disposed unprocessed dirty file(s) when stopping log writer [pid 5957] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0d6adff000 [pid 5957] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5957] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5957] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0}./strace-static-x86_64: Process 5958 attached [pid 5958] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 5957] <... clone3 resumed> => {parent_tid=[15]}, 88) = 15 [pid 5958] <... rseq resumed>) = 0 [pid 5957] rt_sigprocmask(SIG_SETMASK, [], [pid 5958] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 5957] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5958] <... set_robust_list resumed>) = 0 [pid 5957] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5958] rt_sigprocmask(SIG_SETMASK, [], [pid 5957] <... futex resumed>) = 0 [pid 5958] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5957] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5958] memfd_create("syzkaller", 0) = 3 [pid 5958] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 [pid 5958] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576 [pid 5836] <... umount2 resumed>) = 0 [pid 5958] munmap(0x7f0d62800000, 138412032) = 0 [pid 5958] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [ 93.154776][ T5950] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 93.166134][ T5950] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 93.180890][ T5950] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 93.191993][ T5950] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5954] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 5836] umount2("./5/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5835] openat(AT_FDCWD, "./5/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5954] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5835] <... openat resumed>) = 4 [pid 5954] <... futex resumed>) = 0 [pid 5836] newfstatat(AT_FDCWD, "./5/file2", [pid 5954] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5836] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5835] newfstatat(4, "", [pid 5953] close(3 [pid 5836] umount2("./5/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5835] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 5953] <... close resumed>) = 0 [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5953] close(4 [pid 5836] openat(AT_FDCWD, "./5/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5835] getdents64(4, [pid 5953] <... close resumed>) = 0 [pid 5836] <... openat resumed>) = 4 [pid 5953] close(5 [pid 5836] newfstatat(4, "", [pid 5835] <... getdents64 resumed>0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 5953] <... close resumed>) = 0 [pid 5836] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 5835] getdents64(4, [pid 5953] close(6 [pid 5836] getdents64(4, [pid 5835] <... getdents64 resumed>0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 5953] <... close resumed>) = 0 [pid 5836] <... getdents64 resumed>0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 5835] close(4 [pid 5953] close(7 [pid 5836] getdents64(4, [pid 5953] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] <... getdents64 resumed>0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 5835] <... close resumed>) = 0 [pid 5953] close(8 [pid 5836] close(4 [pid 5953] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] <... close resumed>) = 0 [pid 5835] rmdir("./5/file2" [pid 5953] close(9 [pid 5836] rmdir("./5/file2" [pid 5835] <... rmdir resumed>) = 0 [pid 5836] <... rmdir resumed>) = 0 [pid 5953] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] getdents64(3, [pid 5835] getdents64(3, [pid 5953] close(10 [pid 5836] <... getdents64 resumed>0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 5953] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] close(3 [pid 5835] <... getdents64 resumed>0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 5953] close(11 [pid 5836] <... close resumed>) = 0 [pid 5835] close(3 [pid 5953] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] rmdir("./5" [pid 5835] <... close resumed>) = 0 [pid 5958] ioctl(4, LOOP_SET_FD, 3 [pid 5953] close(12 [pid 5836] <... rmdir resumed>) = 0 [pid 5953] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] mkdir("./6", 0777 [pid 5835] rmdir("./5" [pid 5953] close(13 [pid 5836] <... mkdir resumed>) = 0 [pid 5835] <... rmdir resumed>) = 0 [pid 5953] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5953] close(14 [pid 5836] <... openat resumed>) = 3 [pid 5835] mkdir("./6", 0777 [pid 5953] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] ioctl(3, LOOP_CLR_FD [pid 5835] <... mkdir resumed>) = 0 [pid 5836] <... ioctl resumed>) = 0 [pid 5953] close(15 [pid 5836] close(3 [pid 5835] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5953] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] <... close resumed>) = 0 [pid 5835] <... openat resumed>) = 3 [pid 5953] close(16 [ 93.203765][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 93.205786][ T5955] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 93.215193][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 93.236682][ T5958] loop4: detected capacity change from 0 to 2048 [pid 5836] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5958] <... ioctl resumed>) = 0 [pid 5953] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5835] ioctl(3, LOOP_CLR_FD [pid 5836] <... clone resumed>, child_tidptr=0x55555fa3c690) = 17 [pid 5953] close(17 [pid 5835] <... ioctl resumed>) = 0 [pid 5953] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5835] close(3 [pid 5958] close(3 [pid 5953] close(18./strace-static-x86_64: Process 5959 attached [pid 5958] <... close resumed>) = 0 [pid 5953] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5953] close(19 [pid 5959] set_robust_list(0x55555fa3c6a0, 24 [pid 5958] close(4 [pid 5953] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5959] <... set_robust_list resumed>) = 0 [pid 5958] <... close resumed>) = 0 [pid 5953] close(20) = -1 EBADF (Bad file descriptor) [pid 5959] chdir("./6" [pid 5958] mkdir("./file2", 0777 [pid 5953] close(21 [pid 5959] <... chdir resumed>) = 0 [pid 5953] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5953] close(22 [pid 5958] <... mkdir resumed>) = 0 [pid 5959] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5958] mount("/dev/loop4", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 5959] <... prctl resumed>) = 0 [pid 5959] setpgid(0, 0 [pid 5953] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5953] close(23) = -1 EBADF (Bad file descriptor) [pid 5953] close(24) = -1 EBADF (Bad file descriptor) [pid 5835] <... close resumed>) = 0 [pid 5953] close(25) = -1 EBADF (Bad file descriptor) [pid 5953] close(26) = -1 EBADF (Bad file descriptor) [pid 5953] close(27) = -1 EBADF (Bad file descriptor) [pid 5953] close(28) = -1 EBADF (Bad file descriptor) [pid 5953] close(29) = -1 EBADF (Bad file descriptor) [pid 5953] exit_group(0 [pid 5959] <... setpgid resumed>) = 0 [pid 5954] <... futex resumed>) = ? [pid 5953] <... exit_group resumed>) = ? [pid 5954] +++ exited with 0 +++ [pid 5959] symlink("/syzcgroup/unified/syz2", "./cgroup") = 0 [pid 5959] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5835] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5959] <... symlink resumed>) = 0 [pid 5959] symlink("/syzcgroup/net/syz2", "./cgroup.net") = 0 [pid 5959] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [ 93.250722][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 93.262648][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 93.275988][ T5834] NILFS (loop1): disposed unprocessed dirty file(s) when stopping log writer [ 93.293552][ T5958] NILFS (loop4): broken superblock, retrying with spare superblock (blocksize = 1024) [pid 5959] write(3, "1000", 4) = 4 [pid 5959] close(3./strace-static-x86_64: Process 5960 attached ) = 0 executing program [pid 5959] symlink("/dev/binderfs", "./binderfs" [pid 5960] set_robust_list(0x55555fa3c6a0, 24 [pid 5959] <... symlink resumed>) = 0 [pid 5835] <... clone resumed>, child_tidptr=0x55555fa3c690) = 16 [pid 5959] write(1, "executing program\n", 18 [pid 5960] <... set_robust_list resumed>) = 0 [pid 5960] chdir("./6") = 0 [pid 5960] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5960] setpgid(0, 0) = 0 [pid 5960] symlink("/syzcgroup/unified/syz3", "./cgroup") = 0 [pid 5959] <... write resumed>) = 18 [pid 5960] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5959] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5960] <... symlink resumed>) = 0 [pid 5959] <... futex resumed>) = 0 [pid 5960] symlink("/syzcgroup/net/syz3", "./cgroup.net") = 0 [pid 5960] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5959] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, [pid 5958] <... mount resumed>) = 0 [pid 5956] <... futex resumed>) = ? [pid 5959] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5958] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5960] <... openat resumed>) = 3 [pid 5960] write(3, "1000", 4 [pid 5959] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5958] <... openat resumed>) = 3 [pid 5956] +++ exited with 0 +++ [pid 5953] +++ exited with 0 +++ [pid 5960] <... write resumed>) = 4 [pid 5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=18, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [pid 5960] close(3 [pid 5959] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5958] chdir("./file2" [pid 5960] <... close resumed>) = 0 [pid 5959] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5958] <... chdir resumed>) = 0 executing program [pid 5960] symlink("/dev/binderfs", "./binderfs" [pid 5959] <... mmap resumed>) = 0x7f0d6adff000 [pid 5958] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5960] <... symlink resumed>) = 0 [pid 5959] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE [pid 5958] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5960] write(1, "executing program\n", 18) = 18 [pid 5960] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5958] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5960] <... futex resumed>) = 0 [pid 5959] <... mprotect resumed>) = 0 [pid 5958] <... futex resumed>) = 1 [pid 5957] <... futex resumed>) = 0 [pid 5958] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5960] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, [pid 5959] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5958] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5957] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5959] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5958] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 5957] <... futex resumed>) = 0 [pid 5959] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0} [pid 5958] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 5957] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5958] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5957] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5958] <... futex resumed>) = 0 ./strace-static-x86_64: Process 5962 attached [pid 5960] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5958] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 5957] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5962] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 5960] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5959] <... clone3 resumed> => {parent_tid=[18]}, 88) = 18 [pid 5958] <... openat resumed>) = 4 [pid 5962] <... rseq resumed>) = 0 [pid 5957] <... futex resumed>) = 0 [pid 5962] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 5960] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5959] rt_sigprocmask(SIG_SETMASK, [], [pid 5958] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5957] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5962] <... set_robust_list resumed>) = 0 [pid 5960] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5959] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5958] <... futex resumed>) = 0 [pid 5957] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5833] umount2("./6", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5962] rt_sigprocmask(SIG_SETMASK, [], [pid 5960] <... mmap resumed>) = 0x7f0d6adff000 [pid 5959] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5958] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5957] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5962] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5960] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE [pid 5959] <... futex resumed>) = 0 [pid 5958] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5957] <... futex resumed>) = 0 [pid 5833] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5962] memfd_create("syzkaller", 0 [pid 5960] <... mprotect resumed>) = 0 [pid 5959] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5958] read(-1, [pid 5957] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5833] <... openat resumed>) = 3 [pid 5962] <... memfd_create resumed>) = 3 [pid 5960] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5958] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 5833] newfstatat(3, "", [pid 5962] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5960] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5958] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5833] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 5962] <... mmap resumed>) = 0x7f0d62800000 [pid 5960] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0} [pid 5958] <... futex resumed>) = 1 [pid 5957] <... futex resumed>) = 0 [pid 5833] getdents64(3, ./strace-static-x86_64: Process 5963 attached 0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 5963] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 5960] <... clone3 resumed> => {parent_tid=[17]}, 88) = 17 [pid 5833] umount2("./6/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5963] <... rseq resumed>) = 0 [ 93.341476][ T5961] NILFS (loop4): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 5960] rt_sigprocmask(SIG_SETMASK, [], [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5963] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 5960] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5958] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5957] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5833] newfstatat(AT_FDCWD, "./6/cgroup", [pid 5963] <... set_robust_list resumed>) = 0 [pid 5960] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5958] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5957] <... futex resumed>) = 0 [pid 5833] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5963] rt_sigprocmask(SIG_SETMASK, [], [pid 5960] <... futex resumed>) = 0 [pid 5958] memfd_create("syzkaller", 0 [pid 5957] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5833] unlink("./6/cgroup" [pid 5963] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5962] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5960] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5958] <... memfd_create resumed>) = 5 [pid 5963] memfd_create("syzkaller", 0 [pid 5958] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5833] <... unlink resumed>) = 0 [pid 5963] <... memfd_create resumed>) = 3 [pid 5833] umount2("./6/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5963] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5833] newfstatat(AT_FDCWD, "./6/cgroup.cpu", [pid 5963] <... mmap resumed>) = 0x7f0d62800000 [pid 5833] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./6/cgroup.cpu" [pid 5958] <... mmap resumed>) = 0x7f0d62800000 [pid 5833] <... unlink resumed>) = 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/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/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5958] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5963] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5962] <... write resumed>) = 1048576 [pid 5958] <... write resumed>) = 524288 [pid 5834] <... umount2 resumed>) = 0 [pid 5962] munmap(0x7f0d62800000, 138412032 [pid 5958] munmap(0x7f0d62800000, 138412032 [pid 5834] umount2("./6/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5962] <... munmap resumed>) = 0 [pid 5958] <... munmap resumed>) = 0 [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5963] <... write resumed>) = 1048576 [pid 5962] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5958] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5834] newfstatat(AT_FDCWD, "./6/file2", [pid 5963] munmap(0x7f0d62800000, 138412032 [pid 5962] <... openat resumed>) = 4 [pid 5958] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5834] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [ 93.432535][ T5955] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 93.447302][ T5955] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 93.460995][ T5955] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5958] close(5) = 0 [pid 5963] <... munmap resumed>) = 0 [pid 5962] ioctl(4, LOOP_SET_FD, 3 [pid 5834] umount2("./6/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5963] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5958] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5963] <... openat resumed>) = 4 [pid 5962] <... ioctl resumed>) = 0 [pid 5958] <... futex resumed>) = 1 [pid 5957] <... futex resumed>) = 0 [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 93.472619][ T5955] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 93.486559][ T5955] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 93.498190][ T5955] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 93.499790][ T5962] loop2: detected capacity change from 0 to 2048 [ 93.510941][ T5955] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5963] ioctl(4, LOOP_SET_FD, 3 [pid 5962] close(3 [pid 5958] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5957] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5834] openat(AT_FDCWD, "./6/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5958] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5957] <... futex resumed>) = 0 [pid 5958] fsync(-1 [pid 5957] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5958] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 5958] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5957] <... futex resumed>) = 0 [pid 5958] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5957] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5958] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5957] <... futex resumed>) = 0 [pid 5958] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5957] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5834] <... openat resumed>) = 4 [pid 5962] <... close resumed>) = 0 [pid 5834] newfstatat(4, "", [pid 5962] close(4 [pid 5834] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 5834] getdents64(4, 0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 5834] getdents64(4, [pid 5962] <... close resumed>) = 0 [pid 5834] <... getdents64 resumed>0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 5834] close(4) = 0 [pid 5962] mkdir("./file2", 0777 [pid 5834] rmdir("./6/file2" [pid 5962] <... mkdir resumed>) = 0 [pid 5834] <... rmdir resumed>) = 0 [pid 5962] mount("/dev/loop2", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 5834] getdents64(3, 0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 5834] close(3) = 0 [pid 5834] rmdir("./6") = 0 [pid 5834] mkdir("./7", 0777) = 0 [pid 5834] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5834] ioctl(3, LOOP_CLR_FD) = 0 [pid 5834] close(3 [pid 5963] <... ioctl resumed>) = 0 [pid 5958] <... openat resumed>) = 5 [pid 5963] close(3 [ 93.521956][ T5963] loop3: detected capacity change from 0 to 2048 [ 93.528868][ T5955] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 93.557237][ T5962] NILFS (loop2): broken superblock, retrying with spare superblock (blocksize = 1024) [pid 5958] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5834] <... close resumed>) = 0 [pid 5963] <... close resumed>) = 0 [pid 5958] <... futex resumed>) = 1 [pid 5957] <... futex resumed>) = 0 [pid 5963] close(4 [pid 5958] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 5957] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5963] <... close resumed>) = 0 [pid 5834] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5963] mkdir("./file2", 0777 [pid 5962] <... mount resumed>) = 0 [pid 5957] <... futex resumed>) = 0 [pid 5957] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5834] <... clone resumed>, child_tidptr=0x55555fa3c690) = 20 [pid 5963] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 5965 attached [pid 5963] mount("/dev/loop3", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 5962] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY) = 3 [pid 5965] set_robust_list(0x55555fa3c6a0, 24 [pid 5962] chdir("./file2") = 0 [pid 5965] <... set_robust_list resumed>) = 0 [ 93.577055][ T5955] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 93.592015][ T5964] NILFS (loop2): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 93.605681][ T5955] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 93.622323][ T5963] NILFS (loop3): broken superblock, retrying with spare superblock (blocksize = 1024) [pid 5962] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5965] chdir("./7" [pid 5962] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5959] <... futex resumed>) = 0 [pid 5962] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 5959] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5959] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5957] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5957] futex(0x7f0d6aef46dc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5965] <... chdir resumed>) = 0 [pid 5962] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 5958] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 5957] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5958] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5957] <... mmap resumed>) = 0x7f0d6adde000 [pid 5958] <... futex resumed>) = 0 [pid 5957] mprotect(0x7f0d6addf000, 131072, PROT_READ|PROT_WRITE [pid 5965] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5962] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5965] <... prctl resumed>) = 0 [pid 5963] <... mount resumed>) = 0 [pid 5962] <... futex resumed>) = 1 [pid 5959] <... futex resumed>) = 0 [pid 5958] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5957] <... mprotect resumed>) = 0 [pid 5965] setpgid(0, 0 [pid 5963] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5962] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 5959] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5957] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5965] <... setpgid resumed>) = 0 [pid 5963] <... openat resumed>) = 3 [pid 5963] chdir("./file2" [pid 5962] <... openat resumed>) = 4 [pid 5959] <... futex resumed>) = 0 [pid 5957] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5965] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 5959] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5957] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6adfe990, parent_tid=0x7f0d6adfe990, exit_signal=0, stack=0x7f0d6adde000, stack_size=0x20300, tls=0x7f0d6adfe6c0} [pid 5962] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5963] <... chdir resumed>) = 0 ./strace-static-x86_64: Process 5967 attached [pid 5963] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5962] <... futex resumed>) = 0 [pid 5959] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5965] <... symlink resumed>) = 0 [pid 5962] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5967] rseq(0x7f0d6adfefe0, 0x20, 0, 0x53053053 [pid 5965] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 5963] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5962] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5959] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5957] <... clone3 resumed> => {parent_tid=[16]}, 88) = 16 [pid 5967] <... rseq resumed>) = 0 [pid 5965] <... symlink resumed>) = 0 [pid 5963] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5962] read(-1, [pid 5959] <... futex resumed>) = 0 [pid 5957] rt_sigprocmask(SIG_SETMASK, [], [pid 5963] <... futex resumed>) = 1 [pid 5962] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 5960] <... futex resumed>) = 0 [pid 5963] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5962] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5960] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5963] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5962] <... futex resumed>) = 0 [pid 5960] <... futex resumed>) = 0 [pid 5967] set_robust_list(0x7f0d6adfe9a0, 24 [pid 5959] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5957] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5967] <... set_robust_list resumed>) = 0 [pid 5965] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 5963] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 5962] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5960] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5959] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [ 93.642338][ T5961] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 93.648803][ T5955] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 93.670000][ T5966] NILFS (loop3): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 5957] futex(0x7f0d6aef46d8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5967] rt_sigprocmask(SIG_SETMASK, [], [pid 5959] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5957] <... futex resumed>) = 0 [pid 5967] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5959] <... futex resumed>) = 0 [pid 5957] futex(0x7f0d6aef46dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5967] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 5959] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5967] <... openat resumed>) = 6 [pid 5967] futex(0x7f0d6aef46dc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5957] <... futex resumed>) = 0 [pid 5967] futex(0x7f0d6aef46d8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5965] <... symlink resumed>) = 0 [pid 5963] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 5962] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5957] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5958] <... futex resumed>) = 0 [pid 5957] <... futex resumed>) = 1 [pid 5958] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 5957] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5962] memfd_create("syzkaller", 0 [pid 5965] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5963] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5962] <... memfd_create resumed>) = 5 [pid 5965] <... openat resumed>) = 3 [pid 5963] <... futex resumed>) = 1 [pid 5962] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5960] <... futex resumed>) = 0 [ 93.699210][ T5955] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 93.712239][ T5955] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 93.727048][ T5955] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5965] write(3, "1000", 4 [pid 5963] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 5962] <... mmap resumed>) = 0x7f0d62800000 [pid 5960] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5960] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5965] <... write resumed>) = 4 [pid 5963] <... openat resumed>) = 4 [pid 5962] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5965] close(3 [pid 5963] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5962] <... write resumed>) = 524288 [pid 5957] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [ 93.740325][ T5955] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 93.752582][ T5833] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 93.768829][ T5833] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 93.785926][ T5833] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5965] <... close resumed>) = 0 [pid 5963] <... futex resumed>) = 1 [pid 5962] munmap(0x7f0d62800000, 138412032 [pid 5960] <... futex resumed>) = 0 [pid 5960] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5963] read(-1, [pid 5960] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5962] <... munmap resumed>) = 0 [pid 5965] symlink("/dev/binderfs", "./binderfs" [pid 5963] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 5962] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5963] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5960] <... futex resumed>) = 0 [pid 5963] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5960] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5963] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5960] <... futex resumed>) = 0 [pid 5963] memfd_create("syzkaller", 0 [pid 5960] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5963] <... memfd_create resumed>) = 5 [pid 5963] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 [pid 5962] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5965] <... symlink resumed>) = 0 [pid 5962] close(5 [pid 5965] write(1, "executing program\n", 18executing program [pid 5962] <... close resumed>) = 0 [pid 5965] <... write resumed>) = 18 [pid 5962] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5965] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5963] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5962] <... futex resumed>) = 1 [pid 5959] <... futex resumed>) = 0 [pid 5965] <... futex resumed>) = 0 [pid 5962] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5959] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5965] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, [pid 5962] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5959] <... futex resumed>) = 0 [pid 5965] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5962] fsync(-1 [pid 5965] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5962] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 5965] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5962] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5965] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5962] <... futex resumed>) = 0 [pid 5959] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5965] <... mmap resumed>) = 0x7f0d6adff000 [pid 5962] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5965] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE [pid 5963] <... write resumed>) = 524288 [pid 5959] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5959] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5962] <... futex resumed>) = 0 [pid 5959] <... futex resumed>) = 1 [pid 5965] <... mprotect resumed>) = 0 [pid 5959] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5962] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5965] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5963] munmap(0x7f0d62800000, 138412032 [pid 5962] <... openat resumed>) = 5 [pid 5965] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5962] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5965] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0} [pid 5962] <... futex resumed>) = 1 [pid 5962] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5959] <... futex resumed>) = 0 ./strace-static-x86_64: Process 5968 attached [pid 5959] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5968] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 5965] <... clone3 resumed> => {parent_tid=[21]}, 88) = 21 [pid 5963] <... munmap resumed>) = 0 [pid 5962] <... futex resumed>) = 0 [pid 5959] <... futex resumed>) = 1 [pid 5968] <... rseq resumed>) = 0 [pid 5965] rt_sigprocmask(SIG_SETMASK, [], [pid 5963] openat(AT_FDCWD, "/dev/loop3", O_RDWR [ 93.798308][ T5833] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 93.810793][ T5833] NILFS (loop0): disposed unprocessed dirty file(s) when stopping log writer [pid 5962] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 5959] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5968] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 5965] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5963] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5963] close(5 [pid 5968] <... set_robust_list resumed>) = 0 [pid 5965] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5968] rt_sigprocmask(SIG_SETMASK, [], [pid 5965] <... futex resumed>) = 0 [pid 5968] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5965] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5968] memfd_create("syzkaller", 0) = 3 [pid 5968] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5963] <... close resumed>) = 0 [pid 5962] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 5833] <... umount2 resumed>) = 0 [pid 5968] <... mmap resumed>) = 0x7f0d62800000 [pid 5963] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5962] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5833] umount2("./6/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5968] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5963] <... futex resumed>) = 1 [pid 5962] <... futex resumed>) = 1 [pid 5960] <... futex resumed>) = 0 [pid 5959] <... futex resumed>) = 0 [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5958] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 5963] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5962] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5960] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5959] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5958] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5833] newfstatat(AT_FDCWD, "./6/file2", [pid 5963] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5962] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5960] <... futex resumed>) = 0 [pid 5959] <... futex resumed>) = 0 [pid 5958] <... futex resumed>) = 0 [pid 5963] fsync(-1 [pid 5962] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 5960] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5959] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5958] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5833] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5963] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 5957] close(3 [pid 5963] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5957] <... close resumed>) = 0 [pid 5833] umount2("./6/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5963] <... futex resumed>) = 1 [pid 5962] <... openat resumed>) = 6 [pid 5960] <... futex resumed>) = 0 [pid 5957] close(4 [pid 5963] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5962] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5960] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5957] <... close resumed>) = 0 [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5963] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5962] <... futex resumed>) = 1 [pid 5960] <... futex resumed>) = 0 [pid 5959] <... futex resumed>) = 0 [pid 5957] close(5 [pid 5833] openat(AT_FDCWD, "./6/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5963] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5962] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5960] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5959] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5957] <... close resumed>) = 0 [pid 5962] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5959] <... futex resumed>) = 0 [pid 5957] close(6 [pid 5833] <... openat resumed>) = 4 [pid 5962] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 5959] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5957] <... close resumed>) = 0 [pid 5833] newfstatat(4, "", [pid 5957] close(7) = -1 EBADF (Bad file descriptor) [pid 5833] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 5957] close(8) = -1 EBADF (Bad file descriptor) [pid 5833] getdents64(4, [pid 5957] close(9) = -1 EBADF (Bad file descriptor) [pid 5833] <... getdents64 resumed>0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 5957] close(10) = -1 EBADF (Bad file descriptor) [pid 5833] getdents64(4, [pid 5957] close(11) = -1 EBADF (Bad file descriptor) [pid 5833] <... getdents64 resumed>0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 5957] close(12) = -1 EBADF (Bad file descriptor) [pid 5957] close(13) = -1 EBADF (Bad file descriptor) [pid 5957] close(14) = -1 EBADF (Bad file descriptor) [pid 5957] close(15) = -1 EBADF (Bad file descriptor) [pid 5957] close(16) = -1 EBADF (Bad file descriptor) [pid 5957] close(17) = -1 EBADF (Bad file descriptor) [pid 5957] close(18) = -1 EBADF (Bad file descriptor) [pid 5957] close(19) = -1 EBADF (Bad file descriptor) [pid 5957] close(20) = -1 EBADF (Bad file descriptor) [pid 5957] close(21) = -1 EBADF (Bad file descriptor) [pid 5957] close(22) = -1 EBADF (Bad file descriptor) [pid 5957] close(23) = -1 EBADF (Bad file descriptor) [pid 5957] close(24) = -1 EBADF (Bad file descriptor) [pid 5957] close(25) = -1 EBADF (Bad file descriptor) [pid 5957] close(26) = -1 EBADF (Bad file descriptor) [pid 5957] close(27) = -1 EBADF (Bad file descriptor) [pid 5957] close(28) = -1 EBADF (Bad file descriptor) [pid 5833] close(4 [pid 5957] close(29) = -1 EBADF (Bad file descriptor) [pid 5833] <... close resumed>) = 0 [pid 5957] exit_group(0 [pid 5833] rmdir("./6/file2" [pid 5967] <... futex resumed>) = ? [pid 5963] <... openat resumed>) = 5 [pid 5958] <... futex resumed>) = ? [pid 5957] <... exit_group resumed>) = ? [pid 5833] <... rmdir resumed>) = 0 [pid 5967] +++ exited with 0 +++ [pid 5963] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5833] getdents64(3, [pid 5963] <... futex resumed>) = 1 [pid 5960] <... futex resumed>) = 0 [pid 5958] +++ exited with 0 +++ [pid 5957] +++ exited with 0 +++ [pid 5833] <... getdents64 resumed>0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 5963] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5833] close(3) = 0 [pid 5833] rmdir("./6") = 0 [pid 5960] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [ 93.866244][ T5964] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 93.900638][ T5961] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5833] mkdir("./7", 0777 [pid 5963] <... futex resumed>) = 0 [pid 5960] <... futex resumed>) = 1 [pid 5833] <... mkdir resumed>) = 0 [pid 5963] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 5833] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5960] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5833] <... openat resumed>) = 3 [pid 5833] ioctl(3, LOOP_CLR_FD [pid 5968] <... write resumed>) = 1048576 [pid 5833] <... ioctl resumed>) = 0 [pid 5833] close(3 [pid 5968] munmap(0x7f0d62800000, 138412032 [pid 5959] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5833] <... close resumed>) = 0 [pid 5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5969 attached [pid 5837] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [pid 5833] <... clone resumed>, child_tidptr=0x55555fa3c690) = 21 [pid 5969] set_robust_list(0x55555fa3c6a0, 24) = 0 [pid 5837] umount2("./6", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5969] chdir("./7" [pid 5837] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5969] <... chdir resumed>) = 0 [pid 5960] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5837] <... openat resumed>) = 3 [pid 5969] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5963] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 5960] futex(0x7f0d6aef46dc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] newfstatat(3, "", [pid 5969] setpgid(0, 0 [pid 5963] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5960] <... futex resumed>) = 0 [pid 5837] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 5968] <... munmap resumed>) = 0 [pid 5969] <... setpgid resumed>) = 0 [pid 5968] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5963] <... futex resumed>) = 0 [pid 5960] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5837] getdents64(3, [pid 5969] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 5963] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5960] <... mmap resumed>) = 0x7f0d6adde000 [pid 5837] <... getdents64 resumed>0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 5960] mprotect(0x7f0d6addf000, 131072, PROT_READ|PROT_WRITE [pid 5837] umount2("./6/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5960] <... mprotect resumed>) = 0 [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5960] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5968] <... openat resumed>) = 4 [pid 5837] newfstatat(AT_FDCWD, "./6/cgroup", [pid 5969] <... symlink resumed>) = 0 [pid 5837] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5969] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 5968] ioctl(4, LOOP_SET_FD, 3 [pid 5960] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5837] unlink("./6/cgroup" [pid 5969] <... symlink resumed>) = 0 [pid 5960] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6adfe990, parent_tid=0x7f0d6adfe990, exit_signal=0, stack=0x7f0d6adde000, stack_size=0x20300, tls=0x7f0d6adfe6c0} [pid 5837] <... unlink resumed>) = 0 ./strace-static-x86_64: Process 5970 attached [pid 5837] umount2("./6/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5970] rseq(0x7f0d6adfefe0, 0x20, 0, 0x53053053 [pid 5960] <... clone3 resumed> => {parent_tid=[18]}, 88) = 18 [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5970] <... rseq resumed>) = 0 [pid 5960] rt_sigprocmask(SIG_SETMASK, [], [pid 5837] newfstatat(AT_FDCWD, "./6/cgroup.cpu", [pid 5970] set_robust_list(0x7f0d6adfe9a0, 24 [pid 5960] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5837] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5970] <... set_robust_list resumed>) = 0 [pid 5960] futex(0x7f0d6aef46d8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] unlink("./6/cgroup.cpu" [pid 5970] rt_sigprocmask(SIG_SETMASK, [], [pid 5960] <... futex resumed>) = 0 [pid 5837] <... unlink resumed>) = 0 [pid 5970] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5969] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 5960] futex(0x7f0d6aef46dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5970] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 5837] umount2("./6/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5970] <... openat resumed>) = 6 [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5970] futex(0x7f0d6aef46dc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5969] <... symlink resumed>) = 0 [pid 5837] newfstatat(AT_FDCWD, "./6/cgroup.net", [pid 5970] <... futex resumed>) = 1 [pid 5960] <... futex resumed>) = 0 [pid 5969] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5837] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5970] futex(0x7f0d6aef46d8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5969] <... openat resumed>) = 3 [pid 5960] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] unlink("./6/cgroup.net" [pid 5969] write(3, "1000", 4 [pid 5968] <... ioctl resumed>) = 0 [pid 5960] <... futex resumed>) = 1 [pid 5837] <... unlink resumed>) = 0 [pid 5969] <... write resumed>) = 4 [pid 5968] close(3 [pid 5963] <... futex resumed>) = 0 [pid 5960] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5969] close(3 [pid 5968] <... close resumed>) = 0 [pid 5969] <... close resumed>) = 0 [pid 5968] close(4 [pid 5969] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 5963] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 5837] umount2("./6/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5969] write(1, "executing program\n", 18 [pid 5968] <... close resumed>) = 0 [pid 5969] <... write resumed>) = 18 [pid 5968] mkdir("./file2", 0777 [pid 5969] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5968] <... mkdir resumed>) = 0 [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5969] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, [pid 5968] mount("/dev/loop1", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 5969] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5837] newfstatat(AT_FDCWD, "./6/binderfs", [pid 5969] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5837] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5969] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5837] unlink("./6/binderfs" [pid 5969] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5837] <... unlink resumed>) = 0 [pid 5969] <... mmap resumed>) = 0x7f0d6adff000 [ 93.982708][ T5966] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 94.012957][ T5968] loop1: detected capacity change from 0 to 2048 [pid 5837] umount2("./6/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5969] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5969] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5969] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0}./strace-static-x86_64: Process 5971 attached [ 94.057767][ T5968] NILFS (loop1): broken superblock, retrying with spare superblock (blocksize = 1024) [ 94.069899][ T5961] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 94.086394][ T5838] udevd[5838]: incorrect nilfs2 checksum on /dev/loop1 [pid 5960] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5971] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 5969] <... clone3 resumed> => {parent_tid=[22]}, 88) = 22 [pid 5971] <... rseq resumed>) = 0 [pid 5969] rt_sigprocmask(SIG_SETMASK, [], [pid 5971] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 5969] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5971] <... set_robust_list resumed>) = 0 [pid 5971] rt_sigprocmask(SIG_SETMASK, [], [pid 5969] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5971] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5969] <... futex resumed>) = 0 [pid 5971] memfd_create("syzkaller", 0 [pid 5969] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5971] <... memfd_create resumed>) = 3 [pid 5971] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5968] <... mount resumed>) = 0 [pid 5971] <... mmap resumed>) = 0x7f0d62800000 [pid 5968] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5971] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5968] <... openat resumed>) = 3 [pid 5968] chdir("./file2") = 0 [pid 5968] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5968] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5965] <... futex resumed>) = 0 [pid 5968] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5965] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5968] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5965] <... futex resumed>) = 0 [pid 5968] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 5965] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5968] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 5968] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5965] <... futex resumed>) = 0 [pid 5968] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5965] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5968] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5965] <... futex resumed>) = 0 [pid 5968] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 5965] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5968] <... openat resumed>) = 4 [pid 5968] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5965] <... futex resumed>) = 0 [pid 5971] <... write resumed>) = 1048576 [pid 5968] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5971] munmap(0x7f0d62800000, 138412032 [pid 5965] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5968] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5965] <... futex resumed>) = 0 [pid 5968] read(-1, [pid 5965] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [ 94.099088][ T5961] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 94.119746][ T5972] NILFS (loop1): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 94.128058][ T5961] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5968] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 5971] <... munmap resumed>) = 0 [pid 5971] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5968] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5962] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 5971] <... openat resumed>) = 4 [pid 5971] ioctl(4, LOOP_SET_FD, 3 [pid 5968] <... futex resumed>) = 1 [pid 5965] <... futex resumed>) = 0 [pid 5962] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5968] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5965] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5962] <... futex resumed>) = 0 [pid 5959] close(3 [pid 5968] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5965] <... futex resumed>) = 0 [pid 5959] <... close resumed>) = 0 [pid 5968] memfd_create("syzkaller", 0 [pid 5965] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5959] close(4 [pid 5968] <... memfd_create resumed>) = 5 [pid 5959] <... close resumed>) = 0 [pid 5968] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5959] close(5 [pid 5971] <... ioctl resumed>) = 0 [pid 5968] <... mmap resumed>) = 0x7f0d62800000 [pid 5962] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5959] <... close resumed>) = 0 [pid 5968] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5959] close(6) = 0 [pid 5959] close(7) = -1 EBADF (Bad file descriptor) [pid 5959] close(8) = -1 EBADF (Bad file descriptor) [pid 5959] close(9) = -1 EBADF (Bad file descriptor) [pid 5959] close(10) = -1 EBADF (Bad file descriptor) [pid 5959] close(11) = -1 EBADF (Bad file descriptor) [ 94.170024][ T5961] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 94.178191][ T5964] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 94.193892][ T5961] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 94.205934][ T5971] loop0: detected capacity change from 0 to 2048 [pid 5959] close(12) = -1 EBADF (Bad file descriptor) [pid 5959] close(13) = -1 EBADF (Bad file descriptor) [pid 5971] close(3 [pid 5959] close(14) = -1 EBADF (Bad file descriptor) [pid 5959] close(15) = -1 EBADF (Bad file descriptor) [pid 5959] close(16) = -1 EBADF (Bad file descriptor) [pid 5959] close(17) = -1 EBADF (Bad file descriptor) [pid 5959] close(18) = -1 EBADF (Bad file descriptor) [pid 5959] close(19) = -1 EBADF (Bad file descriptor) [pid 5971] <... close resumed>) = 0 [pid 5959] close(20) = -1 EBADF (Bad file descriptor) [pid 5959] close(21) = -1 EBADF (Bad file descriptor) [pid 5959] close(22) = -1 EBADF (Bad file descriptor) [pid 5959] close(23) = -1 EBADF (Bad file descriptor) [pid 5959] close(24) = -1 EBADF (Bad file descriptor) [pid 5959] close(25) = -1 EBADF (Bad file descriptor) [pid 5959] close(26) = -1 EBADF (Bad file descriptor) [pid 5959] close(27) = -1 EBADF (Bad file descriptor) [pid 5959] close(28) = -1 EBADF (Bad file descriptor) [pid 5959] close(29) = -1 EBADF (Bad file descriptor) [pid 5959] exit_group(0) = ? [pid 5962] <... futex resumed>) = ? [ 94.213575][ T5961] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 94.224924][ T5961] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 94.236856][ T5961] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 94.250294][ T5961] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5971] close(4 [pid 5968] <... write resumed>) = 524288 [pid 5968] munmap(0x7f0d62800000, 138412032 [pid 5971] <... close resumed>) = 0 [pid 5971] mkdir("./file2", 0777 [pid 5968] <... munmap resumed>) = 0 [pid 5968] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5968] close(5) = 0 [pid 5971] <... mkdir resumed>) = 0 [pid 5962] +++ exited with 0 +++ [pid 5959] +++ exited with 0 +++ [pid 5968] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5965] <... futex resumed>) = 0 [pid 5836] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=17, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 5968] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5965] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5836] umount2("./6", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5968] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5965] <... futex resumed>) = 0 [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5968] fsync(-1 [pid 5965] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5836] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5971] mount("/dev/loop0", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 5968] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] <... openat resumed>) = 3 [pid 5968] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5836] newfstatat(3, "", [pid 5968] <... futex resumed>) = 1 [pid 5965] <... futex resumed>) = 0 [pid 5836] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [ 94.265113][ T5961] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 94.277029][ T5961] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 94.291443][ T5961] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5968] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5965] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5836] getdents64(3, [pid 5968] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5836] <... getdents64 resumed>0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 5836] umount2("./6/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5965] <... futex resumed>) = 0 [pid 5836] newfstatat(AT_FDCWD, "./6/cgroup", [pid 5968] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5965] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5836] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5968] <... openat resumed>) = 5 [pid 5836] unlink("./6/cgroup" [pid 5968] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5836] <... unlink resumed>) = 0 [pid 5968] <... futex resumed>) = 1 [pid 5965] <... futex resumed>) = 0 [pid 5836] umount2("./6/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5968] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5965] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5968] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5965] <... futex resumed>) = 0 [pid 5836] newfstatat(AT_FDCWD, "./6/cgroup.cpu", [pid 5968] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 5965] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5836] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5836] unlink("./6/cgroup.cpu") = 0 [pid 5836] umount2("./6/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5836] newfstatat(AT_FDCWD, "./6/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5836] unlink("./6/cgroup.net") = 0 [pid 5836] umount2("./6/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5836] newfstatat(AT_FDCWD, "./6/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5836] unlink("./6/binderfs") = 0 [ 94.308941][ T5961] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 94.324601][ T5961] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 94.337692][ T5961] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 94.348940][ T5971] NILFS (loop0): broken superblock, retrying with spare superblock (blocksize = 1024) [pid 5836] umount2("./6/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5963] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 5963] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5960] close(3 [pid 5963] <... futex resumed>) = 0 [pid 5960] <... close resumed>) = 0 [pid 5963] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5960] close(4 [pid 5965] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5960] <... close resumed>) = 0 [pid 5965] futex(0x7f0d6aef46dc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5960] close(5 [pid 5965] <... futex resumed>) = 0 [pid 5960] <... close resumed>) = 0 [pid 5965] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5960] close(6) = 0 [pid 5960] close(7) = -1 EBADF (Bad file descriptor) [ 94.362923][ T5966] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 94.368514][ T5838] udevd[5838]: incorrect nilfs2 checksum on /dev/loop0 [ 94.375897][ T5964] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 94.396597][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 94.399323][ T5972] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5960] close(8) = -1 EBADF (Bad file descriptor) [pid 5960] close(9) = -1 EBADF (Bad file descriptor) [pid 5965] <... mmap resumed>) = 0x7f0d6adde000 [pid 5960] close(10 [pid 5965] mprotect(0x7f0d6addf000, 131072, PROT_READ|PROT_WRITE [pid 5960] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5960] close(11 [pid 5965] <... mprotect resumed>) = 0 [pid 5960] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5960] close(12) = -1 EBADF (Bad file descriptor) [pid 5960] close(13) = -1 EBADF (Bad file descriptor) [pid 5960] close(14) = -1 EBADF (Bad file descriptor) [pid 5960] close(15) = -1 EBADF (Bad file descriptor) [pid 5960] close(16) = -1 EBADF (Bad file descriptor) [pid 5960] close(17) = -1 EBADF (Bad file descriptor) [pid 5960] close(18) = -1 EBADF (Bad file descriptor) [pid 5965] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5960] close(19) = -1 EBADF (Bad file descriptor) [pid 5960] close(20 [pid 5965] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5960] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5965] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6adfe990, parent_tid=0x7f0d6adfe990, exit_signal=0, stack=0x7f0d6adde000, stack_size=0x20300, tls=0x7f0d6adfe6c0} [pid 5960] close(21) = -1 EBADF (Bad file descriptor) [pid 5965] <... clone3 resumed> => {parent_tid=[22]}, 88) = 22 [pid 5960] close(22 [pid 5965] rt_sigprocmask(SIG_SETMASK, [], [pid 5960] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5965] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5960] close(23 [pid 5965] futex(0x7f0d6aef46d8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5960] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5965] <... futex resumed>) = 0 [pid 5960] close(24 [pid 5965] futex(0x7f0d6aef46dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5960] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5960] close(25) = -1 EBADF (Bad file descriptor) [pid 5960] close(26) = -1 EBADF (Bad file descriptor) [pid 5960] close(27) = -1 EBADF (Bad file descriptor) [pid 5960] close(28) = -1 EBADF (Bad file descriptor) [pid 5960] close(29) = -1 EBADF (Bad file descriptor) [pid 5960] exit_group(0 [pid 5970] <... futex resumed>) = ? [pid 5963] <... futex resumed>) = ? [pid 5960] <... exit_group resumed>) = ? [pid 5970] +++ exited with 0 +++ [pid 5963] +++ exited with 0 +++ [pid 5960] +++ exited with 0 +++ [pid 5835] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=16, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 5835] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5835] umount2("./6", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5835] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5835] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 5835] getdents64(3, 0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 5835] umount2("./6/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5835] newfstatat(AT_FDCWD, "./6/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5835] unlink("./6/cgroup") = 0 [pid 5835] umount2("./6/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5835] newfstatat(AT_FDCWD, "./6/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5835] unlink("./6/cgroup.cpu") = 0 [pid 5835] umount2("./6/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5835] newfstatat(AT_FDCWD, "./6/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5835] unlink("./6/cgroup.net") = 0 [pid 5835] umount2("./6/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5835] newfstatat(AT_FDCWD, "./6/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5835] unlink("./6/binderfs") = 0 [ 94.409206][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 94.432629][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 94.444521][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 94.455695][ T5837] NILFS (loop4): disposed unprocessed dirty file(s) when stopping log writer [pid 5835] umount2("./6/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5968] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 5968] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5968] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 5973 attached [pid 5965] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5965] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5968] <... futex resumed>) = 0 [pid 5965] <... futex resumed>) = 1 [pid 5968] pwritev2(-1, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 5965] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5968] <... pwritev2 resumed>) = -1 EBADF (Bad file descriptor) [pid 5968] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5965] <... futex resumed>) = 0 [pid 5968] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [ 94.482133][ T5964] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 94.485750][ T5974] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 94.501411][ T5964] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 94.505830][ T5966] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5973] rseq(0x7f0d6adfefe0, 0x20, 0, 0x53053053) = 0 [pid 5837] <... umount2 resumed>) = 0 [pid 5973] set_robust_list(0x7f0d6adfe9a0, 24 [pid 5837] umount2("./6/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5973] <... set_robust_list resumed>) = 0 [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5973] rt_sigprocmask(SIG_SETMASK, [], [pid 5971] <... mount resumed>) = 0 [pid 5837] newfstatat(AT_FDCWD, "./6/file2", [pid 5971] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY) = 3 [pid 5971] chdir("./file2") = 0 [pid 5971] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5971] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5969] <... futex resumed>) = 0 [pid 5971] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5969] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5971] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5969] <... futex resumed>) = 0 [pid 5971] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 5969] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5971] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 5971] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5969] <... futex resumed>) = 0 [pid 5971] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5969] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5971] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5969] <... futex resumed>) = 0 [pid 5971] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 5969] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5971] <... openat resumed>) = 4 [pid 5971] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5969] <... futex resumed>) = 0 [pid 5971] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5969] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5971] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5969] <... futex resumed>) = 0 [pid 5971] read(-1, [pid 5969] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5971] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 5837] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5971] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5969] <... futex resumed>) = 0 [pid 5971] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5969] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5971] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5969] <... futex resumed>) = 0 [pid 5971] memfd_create("syzkaller", 0 [pid 5969] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5971] <... memfd_create resumed>) = 5 [pid 5971] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 [pid 5971] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5837] umount2("./6/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5973] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 94.517947][ T5964] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 94.538733][ T5964] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 94.550852][ T5966] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 94.564229][ T5966] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5973] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 5971] <... write resumed>) = 524288 [pid 5837] openat(AT_FDCWD, "./6/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5971] munmap(0x7f0d62800000, 138412032) = 0 [pid 5837] <... openat resumed>) = 4 [pid 5971] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5971] close(5) = 0 [pid 5837] newfstatat(4, "", [pid 5971] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5969] <... futex resumed>) = 0 [pid 5971] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5969] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5971] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5969] <... futex resumed>) = 0 [pid 5971] fsync(-1 [pid 5969] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5971] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 5971] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5969] <... futex resumed>) = 0 [pid 5971] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5969] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5971] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5969] <... futex resumed>) = 0 [pid 5971] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [ 94.567779][ T5964] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 94.576469][ T5966] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 94.588338][ T5964] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 94.597435][ T5966] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 94.614009][ T5964] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5969] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5971] <... openat resumed>) = 5 [pid 5971] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5969] <... futex resumed>) = 0 [pid 5971] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 5969] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5969] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5837] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 5837] getdents64(4, [pid 5973] <... openat resumed>) = 6 [ 94.621132][ T5966] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 94.637792][ T5964] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 94.641446][ T5966] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 94.653190][ T5964] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 94.662498][ T5966] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5969] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5971] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 5969] futex(0x7f0d6aef46dc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5971] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5969] <... futex resumed>) = 0 [pid 5971] <... futex resumed>) = 0 [pid 5969] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5971] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5969] <... mmap resumed>) = 0x7f0d6adde000 [pid 5969] mprotect(0x7f0d6addf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5837] <... getdents64 resumed>0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 5969] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5837] getdents64(4, [pid 5969] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5837] <... getdents64 resumed>0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 5969] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6adfe990, parent_tid=0x7f0d6adfe990, exit_signal=0, stack=0x7f0d6adde000, stack_size=0x20300, tls=0x7f0d6adfe6c0} [pid 5837] close(4./strace-static-x86_64: Process 5975 attached ) = 0 [pid 5975] rseq(0x7f0d6adfefe0, 0x20, 0, 0x53053053 [pid 5969] <... clone3 resumed> => {parent_tid=[23]}, 88) = 23 [pid 5837] rmdir("./6/file2" [pid 5975] <... rseq resumed>) = 0 [pid 5969] rt_sigprocmask(SIG_SETMASK, [], [pid 5837] <... rmdir resumed>) = 0 [pid 5975] set_robust_list(0x7f0d6adfe9a0, 24 [pid 5973] futex(0x7f0d6aef46dc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5969] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5837] getdents64(3, [pid 5975] <... set_robust_list resumed>) = 0 [pid 5969] futex(0x7f0d6aef46d8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] <... getdents64 resumed>0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 5975] rt_sigprocmask(SIG_SETMASK, [], [pid 5969] <... futex resumed>) = 0 [pid 5965] close(3 [pid 5837] close(3 [pid 5975] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5969] futex(0x7f0d6aef46dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5965] <... close resumed>) = 0 [pid 5837] <... close resumed>) = 0 [pid 5975] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 5973] <... futex resumed>) = 0 [pid 5965] close(4 [pid 5837] rmdir("./6" [pid 5973] futex(0x7f0d6aef46d8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5965] <... close resumed>) = 0 [pid 5837] <... rmdir resumed>) = 0 [pid 5975] <... openat resumed>) = 6 [pid 5965] close(5 [pid 5837] mkdir("./7", 0777 [pid 5975] futex(0x7f0d6aef46dc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5965] <... close resumed>) = 0 [pid 5837] <... mkdir resumed>) = 0 [pid 5975] <... futex resumed>) = 1 [pid 5969] <... futex resumed>) = 0 [pid 5965] close(6 [pid 5837] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5975] futex(0x7f0d6aef46d8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5969] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5965] <... close resumed>) = 0 [pid 5837] <... openat resumed>) = 3 [ 94.684307][ T5974] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 94.695485][ T5966] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 94.706993][ T5966] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 94.718341][ T5966] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5971] <... futex resumed>) = 0 [pid 5969] <... futex resumed>) = 1 [pid 5965] close(7 [pid 5837] ioctl(3, LOOP_CLR_FD [pid 5971] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 5969] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5965] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5837] <... ioctl resumed>) = 0 [pid 5965] close(8 [pid 5837] close(3 [pid 5965] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5837] <... close resumed>) = 0 [pid 5965] close(9 [pid 5837] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5965] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5965] close(10) = -1 EBADF (Bad file descriptor) [pid 5965] close(11) = -1 EBADF (Bad file descriptor) [pid 5965] close(12) = -1 EBADF (Bad file descriptor) [pid 5965] close(13) = -1 EBADF (Bad file descriptor) [pid 5965] close(14) = -1 EBADF (Bad file descriptor) [pid 5965] close(15) = -1 EBADF (Bad file descriptor) [pid 5965] close(16) = -1 EBADF (Bad file descriptor) [pid 5965] close(17) = -1 EBADF (Bad file descriptor) [pid 5965] close(18) = -1 EBADF (Bad file descriptor) [pid 5965] close(19) = -1 EBADF (Bad file descriptor) [pid 5965] close(20) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 5976 attached [pid 5965] close(21) = -1 EBADF (Bad file descriptor) [pid 5965] close(22) = -1 EBADF (Bad file descriptor) [pid 5837] <... clone resumed>, child_tidptr=0x55555fa3c690) = 17 [pid 5965] close(23) = -1 EBADF (Bad file descriptor) [pid 5965] close(24) = -1 EBADF (Bad file descriptor) [pid 5965] close(25) = -1 EBADF (Bad file descriptor) [pid 5965] close(26) = -1 EBADF (Bad file descriptor) [pid 5965] close(27) = -1 EBADF (Bad file descriptor) [pid 5965] close(28) = -1 EBADF (Bad file descriptor) [pid 5965] close(29) = -1 EBADF (Bad file descriptor) [pid 5965] exit_group(0 [pid 5973] <... futex resumed>) = ? [pid 5968] <... futex resumed>) = ? [pid 5965] <... exit_group resumed>) = ? [pid 5973] +++ exited with 0 +++ [pid 5968] +++ exited with 0 +++ [pid 5965] +++ exited with 0 +++ [pid 5976] set_robust_list(0x55555fa3c6a0, 24 [pid 5834] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- [pid 5834] umount2("./7", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 94.729067][ T5966] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 94.740350][ T5966] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 94.751280][ T5964] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 94.762154][ T5966] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 94.773609][ T5964] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5834] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5834] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 5834] getdents64(3, 0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 5834] umount2("./7/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5976] <... set_robust_list resumed>) = 0 [pid 5976] chdir("./7") = 0 [pid 5834] newfstatat(AT_FDCWD, "./7/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5834] unlink("./7/cgroup" [pid 5976] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5834] <... unlink resumed>) = 0 [pid 5834] umount2("./7/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5976] <... prctl resumed>) = 0 [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5976] setpgid(0, 0) = 0 [pid 5834] newfstatat(AT_FDCWD, "./7/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5834] unlink("./7/cgroup.cpu") = 0 [pid 5834] umount2("./7/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5834] newfstatat(AT_FDCWD, "./7/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5834] unlink("./7/cgroup.net") = 0 [pid 5834] umount2("./7/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5834] newfstatat(AT_FDCWD, "./7/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5834] unlink("./7/binderfs") = 0 [ 94.785481][ T5966] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 94.797535][ T5964] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 94.813146][ T5835] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 94.824674][ T5964] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5834] umount2("./7/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5976] symlink("/syzcgroup/unified/syz4", "./cgroup") = 0 [pid 5976] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu") = 0 [pid 5976] symlink("/syzcgroup/net/syz4", "./cgroup.net") = 0 [ 94.836739][ T5972] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 94.836832][ T5835] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 94.860684][ T5964] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 94.872985][ T5835] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5976] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5969] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5976] <... openat resumed>) = 3 [pid 5976] write(3, "1000", 4) = 4 [pid 5976] close(3) = 0 [ 94.875647][ T5972] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 94.884592][ T5835] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 94.895197][ T5836] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 94.906103][ T5835] NILFS (loop3): disposed unprocessed dirty file(s) when stopping log writer [pid 5976] symlink("/dev/binderfs", "./binderfs" [pid 5835] <... umount2 resumed>) = 0 [pid 5976] <... symlink resumed>) = 0 [pid 5835] umount2("./6/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5976] write(1, "executing program\n", 18 [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) executing program [pid 5976] <... write resumed>) = 18 [pid 5976] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5835] newfstatat(AT_FDCWD, "./6/file2", [pid 5976] <... futex resumed>) = 0 [pid 5835] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5976] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, NULL, 8) = 0 [pid 5835] umount2("./6/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5976] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5976] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0d6adff000 [ 94.950876][ T5972] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 94.959780][ T5836] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 94.974336][ T5972] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5835] openat(AT_FDCWD, "./6/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5976] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE [pid 5835] <... openat resumed>) = 4 [pid 5976] <... mprotect resumed>) = 0 [pid 5835] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 5835] getdents64(4, 0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 5976] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5835] getdents64(4, [pid 5976] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5835] <... getdents64 resumed>0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 5835] close(4 [pid 5976] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0} [pid 5835] <... close resumed>) = 0 ./strace-static-x86_64: Process 5977 attached [pid 5835] rmdir("./6/file2" [pid 5976] <... clone3 resumed> => {parent_tid=[18]}, 88) = 18 [pid 5977] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053) = 0 [pid 5835] <... rmdir resumed>) = 0 [pid 5976] rt_sigprocmask(SIG_SETMASK, [], [pid 5835] getdents64(3, [pid 5976] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5835] <... getdents64 resumed>0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 5976] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5835] close(3 [pid 5976] <... futex resumed>) = 0 [pid 5977] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 5835] <... close resumed>) = 0 [pid 5976] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5835] rmdir("./6" [pid 5977] <... set_robust_list resumed>) = 0 [pid 5977] rt_sigprocmask(SIG_SETMASK, [], [pid 5835] <... rmdir resumed>) = 0 [pid 5977] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5835] mkdir("./7", 0777 [pid 5977] memfd_create("syzkaller", 0 [pid 5835] <... mkdir resumed>) = 0 [pid 5977] <... memfd_create resumed>) = 3 [pid 5835] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5977] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 [pid 5835] <... openat resumed>) = 3 [pid 5977] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5835] ioctl(3, LOOP_CLR_FD) = 0 [ 94.989713][ T5836] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 95.003036][ T5972] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5835] close(3) = 0 [pid 5977] <... write resumed>) = 1048576 [pid 5835] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5977] munmap(0x7f0d62800000, 138412032) = 0 ./strace-static-x86_64: Process 5978 attached [pid 5977] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5977] ioctl(4, LOOP_SET_FD, 3 [pid 5835] <... clone resumed>, child_tidptr=0x55555fa3c690) = 19 [pid 5978] set_robust_list(0x55555fa3c6a0, 24) = 0 [ 95.040677][ T5972] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 95.052988][ T5836] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 95.068748][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 95.076673][ T5974] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 95.084619][ T5977] loop4: detected capacity change from 0 to 2048 [pid 5978] chdir("./7") = 0 [pid 5978] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5978] setpgid(0, 0) = 0 [pid 5978] symlink("/syzcgroup/unified/syz3", "./cgroup") = 0 [pid 5978] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu") = 0 [pid 5978] symlink("/syzcgroup/net/syz3", "./cgroup.net") = 0 [pid 5978] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5971] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 5978] <... openat resumed>) = 3 [pid 5971] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5969] close(3 [pid 5971] <... futex resumed>) = 0 [pid 5969] <... close resumed>) = 0 [pid 5978] write(3, "1000", 4 [pid 5971] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5969] close(4 [pid 5978] <... write resumed>) = 4 [pid 5969] <... close resumed>) = 0 executing program [pid 5978] close(3 [pid 5969] close(5 [pid 5978] <... close resumed>) = 0 [pid 5978] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5978] write(1, "executing program\n", 18) = 18 [pid 5978] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5969] <... close resumed>) = 0 [pid 5978] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, NULL, 8) = 0 [pid 5978] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5978] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0d6adff000 [pid 5978] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5978] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5978] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0}./strace-static-x86_64: Process 5979 attached [pid 5969] close(6 [pid 5978] <... clone3 resumed> => {parent_tid=[20]}, 88) = 20 [pid 5979] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 5978] rt_sigprocmask(SIG_SETMASK, [], [pid 5977] <... ioctl resumed>) = 0 [pid 5969] <... close resumed>) = 0 [pid 5978] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5977] close(3 [pid 5978] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5977] <... close resumed>) = 0 [pid 5978] <... futex resumed>) = 0 [pid 5977] close(4 [pid 5979] <... rseq resumed>) = 0 [pid 5978] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5977] <... close resumed>) = 0 [pid 5969] close(7 [ 95.107024][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 95.120288][ T5836] NILFS (loop2): disposed unprocessed dirty file(s) when stopping log writer [pid 5979] set_robust_list(0x7f0d6ae1f9a0, 24) = 0 [pid 5977] mkdir("./file2", 0777 [pid 5969] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5979] rt_sigprocmask(SIG_SETMASK, [], [pid 5969] close(8 [pid 5979] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5969] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5979] memfd_create("syzkaller", 0 [pid 5969] close(9 [pid 5977] <... mkdir resumed>) = 0 [pid 5979] <... memfd_create resumed>) = 3 [pid 5977] mount("/dev/loop4", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 5969] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5979] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5969] close(10 [pid 5979] <... mmap resumed>) = 0x7f0d62800000 [pid 5969] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5969] close(11) = -1 EBADF (Bad file descriptor) [pid 5969] close(12) = -1 EBADF (Bad file descriptor) [pid 5969] close(13) = -1 EBADF (Bad file descriptor) [pid 5969] close(14) = -1 EBADF (Bad file descriptor) [pid 5979] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5969] close(15) = -1 EBADF (Bad file descriptor) [pid 5836] <... umount2 resumed>) = 0 [pid 5969] close(16 [pid 5836] umount2("./6/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5969] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5969] close(17 [pid 5836] newfstatat(AT_FDCWD, "./6/file2", [pid 5969] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5969] close(18 [pid 5836] umount2("./6/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5969] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5969] close(19 [pid 5836] openat(AT_FDCWD, "./6/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5969] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5969] close(20 [pid 5836] <... openat resumed>) = 4 [ 95.150961][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 95.182938][ T5977] NILFS (loop4): broken superblock, retrying with spare superblock (blocksize = 1024) [pid 5969] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] newfstatat(4, "", [pid 5969] close(21) = -1 EBADF (Bad file descriptor) [pid 5836] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 5834] <... umount2 resumed>) = 0 [pid 5969] close(22 [pid 5836] getdents64(4, [pid 5969] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5969] close(23 [pid 5834] umount2("./7/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5836] <... getdents64 resumed>0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 5969] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] getdents64(4, [pid 5969] close(24 [pid 5836] <... getdents64 resumed>0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5836] close(4 [pid 5969] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5834] newfstatat(AT_FDCWD, "./7/file2", [pid 5969] close(25 [pid 5836] <... close resumed>) = 0 [pid 5969] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] rmdir("./6/file2" [pid 5834] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5969] close(26 [pid 5834] umount2("./7/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5969] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5834] openat(AT_FDCWD, "./7/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5836] <... rmdir resumed>) = 0 [pid 5969] close(27 [pid 5836] getdents64(3, [pid 5969] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] <... getdents64 resumed>0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 5834] <... openat resumed>) = 4 [pid 5834] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 5834] getdents64(4, 0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 5834] getdents64(4, 0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 5834] close(4) = 0 [pid 5834] rmdir("./7/file2") = 0 [pid 5834] getdents64(3, 0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 5834] close(3) = 0 [pid 5834] rmdir("./7") = 0 [pid 5834] mkdir("./8", 0777) = 0 [pid 5834] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5834] ioctl(3, LOOP_CLR_FD) = 0 [pid 5834] close(3 [pid 5969] close(28 [pid 5836] close(3 [pid 5834] <... close resumed>) = 0 [pid 5969] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] <... close resumed>) = 0 [pid 5834] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5981 attached [pid 5969] close(29 [pid 5981] set_robust_list(0x55555fa3c6a0, 24 [pid 5834] <... clone resumed>, child_tidptr=0x55555fa3c690) = 23 [pid 5969] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] rmdir("./6" [pid 5981] <... set_robust_list resumed>) = 0 [pid 5969] exit_group(0 [pid 5836] <... rmdir resumed>) = 0 [pid 5969] <... exit_group resumed>) = ? [pid 5971] <... futex resumed>) = ? [pid 5836] mkdir("./7", 0777 [pid 5981] chdir("./8" [pid 5975] <... futex resumed>) = ? [pid 5971] +++ exited with 0 +++ [pid 5836] <... mkdir resumed>) = 0 [ 95.219717][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 95.231286][ T5834] NILFS (loop1): disposed unprocessed dirty file(s) when stopping log writer [ 95.253026][ T5838] udevd[5838]: incorrect nilfs2 checksum on /dev/loop4 [pid 5981] <... chdir resumed>) = 0 [pid 5979] <... write resumed>) = 1048576 [pid 5977] <... mount resumed>) = 0 [pid 5975] +++ exited with 0 +++ [pid 5969] +++ exited with 0 +++ [pid 5836] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5981] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 5977] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5836] <... openat resumed>) = 3 executing program [pid 5836] ioctl(3, LOOP_CLR_FD [pid 5981] setpgid(0, 0 [pid 5977] <... openat resumed>) = 3 [pid 5836] <... ioctl resumed>) = 0 [pid 5981] <... setpgid resumed>) = 0 [pid 5836] close(3 [pid 5977] chdir("./file2" [pid 5981] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 5833] umount2("./7", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5981] <... symlink resumed>) = 0 [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5981] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 5833] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5981] <... symlink resumed>) = 0 [pid 5833] <... openat resumed>) = 3 [pid 5981] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 5833] newfstatat(3, "", [pid 5981] <... symlink resumed>) = 0 [pid 5833] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 5981] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5833] getdents64(3, [pid 5981] <... openat resumed>) = 3 [pid 5833] <... getdents64 resumed>0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 5981] write(3, "1000", 4 [pid 5833] umount2("./7/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5981] <... write resumed>) = 4 [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5981] close(3 [pid 5833] newfstatat(AT_FDCWD, "./7/cgroup", [pid 5981] <... close resumed>) = 0 [pid 5836] <... close resumed>) = 0 [pid 5833] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5981] symlink("/dev/binderfs", "./binderfs" [pid 5833] unlink("./7/cgroup" [pid 5981] <... symlink resumed>) = 0 [pid 5833] <... unlink resumed>) = 0 [pid 5981] write(1, "executing program\n", 18 [pid 5833] umount2("./7/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5981] <... write resumed>) = 18 [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5981] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5833] newfstatat(AT_FDCWD, "./7/cgroup.cpu", [pid 5981] <... futex resumed>) = 0 [pid 5833] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5981] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, [pid 5833] unlink("./7/cgroup.cpu" [pid 5977] <... chdir resumed>) = 0 [pid 5981] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5833] <... unlink resumed>) = 0 [pid 5981] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5833] umount2("./7/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5981] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5981] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5833] newfstatat(AT_FDCWD, "./7/cgroup.net", [pid 5981] <... mmap resumed>) = 0x7f0d6adff000 [pid 5833] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5981] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE [pid 5833] unlink("./7/cgroup.net" [pid 5981] <... mprotect resumed>) = 0 [pid 5833] <... unlink resumed>) = 0 [pid 5981] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5833] umount2("./7/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5981] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5981] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0} [pid 5833] newfstatat(AT_FDCWD, "./7/binderfs", ./strace-static-x86_64: Process 5982 attached {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5982] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 5981] <... clone3 resumed> => {parent_tid=[24]}, 88) = 24 [pid 5833] unlink("./7/binderfs" [pid 5982] <... rseq resumed>) = 0 [pid 5981] rt_sigprocmask(SIG_SETMASK, [], [pid 5833] <... unlink resumed>) = 0 [pid 5977] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5982] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 5981] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5833] umount2("./7/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5982] <... set_robust_list resumed>) = 0 [pid 5981] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5982] rt_sigprocmask(SIG_SETMASK, [], [pid 5981] <... futex resumed>) = 0 [pid 5977] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5982] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5981] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5977] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5982] memfd_create("syzkaller", 0 [pid 5977] <... futex resumed>) = 1 [pid 5976] <... futex resumed>) = 0 [pid 5977] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5976] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5977] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5976] <... futex resumed>) = 0 [pid 5977] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 5976] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5836] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5977] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 5983 attached [ 95.286077][ T5980] NILFS (loop4): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 95.321531][ T5974] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5982] <... memfd_create resumed>) = 3 [pid 5979] munmap(0x7f0d62800000, 138412032 [pid 5977] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5983] set_robust_list(0x55555fa3c6a0, 24 [pid 5977] <... futex resumed>) = 1 [pid 5976] <... futex resumed>) = 0 [pid 5983] <... set_robust_list resumed>) = 0 [pid 5977] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5976] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5836] <... clone resumed>, child_tidptr=0x55555fa3c690) = 19 [pid 5977] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5976] <... futex resumed>) = 0 [pid 5977] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 5976] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5983] chdir("./7" [pid 5982] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5979] <... munmap resumed>) = 0 [pid 5977] <... openat resumed>) = 4 [pid 5977] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5983] <... chdir resumed>) = 0 [pid 5977] <... futex resumed>) = 1 [pid 5983] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5976] <... futex resumed>) = 0 [pid 5977] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5983] <... prctl resumed>) = 0 [pid 5982] <... mmap resumed>) = 0x7f0d62800000 [pid 5979] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5977] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5976] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5979] <... openat resumed>) = 4 [pid 5977] read(-1, [pid 5976] <... futex resumed>) = 0 [pid 5979] ioctl(4, LOOP_SET_FD, 3 [pid 5977] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 5976] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5983] setpgid(0, 0 [pid 5977] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5976] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5977] <... futex resumed>) = 0 [pid 5976] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5983] <... setpgid resumed>) = 0 [pid 5977] memfd_create("syzkaller", 0 [pid 5976] <... futex resumed>) = 0 [pid 5982] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5979] <... ioctl resumed>) = 0 [pid 5983] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5977] <... memfd_create resumed>) = 5 [ 95.341059][ T5974] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 95.355556][ T5979] loop3: detected capacity change from 0 to 2048 [ 95.379708][ T5974] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5976] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5983] <... symlink resumed>) = 0 [pid 5982] <... write resumed>) = 1048576 [pid 5979] close(3 [pid 5977] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5982] munmap(0x7f0d62800000, 138412032 [pid 5979] <... close resumed>) = 0 [pid 5979] close(4 [pid 5983] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5982] <... munmap resumed>) = 0 [pid 5979] <... close resumed>) = 0 [pid 5977] <... mmap resumed>) = 0x7f0d62800000 [pid 5982] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5979] mkdir("./file2", 0777 [pid 5983] <... symlink resumed>) = 0 [pid 5982] <... openat resumed>) = 4 [pid 5979] <... mkdir resumed>) = 0 [pid 5977] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5982] ioctl(4, LOOP_SET_FD, 3 [ 95.401288][ T5974] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 95.437130][ T5974] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5979] mount("/dev/loop3", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [ 95.452016][ T5982] loop1: detected capacity change from 0 to 2048 [ 95.452902][ T5974] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 95.487136][ T5979] NILFS (loop3): broken superblock, retrying with spare superblock (blocksize = 1024) [pid 5983] symlink("/syzcgroup/net/syz2", "./cgroup.net") = 0 [pid 5982] <... ioctl resumed>) = 0 [pid 5977] <... write resumed>) = 524288 [pid 5983] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5982] close(3 [pid 5977] munmap(0x7f0d62800000, 138412032 [pid 5983] <... openat resumed>) = 3 [pid 5982] <... close resumed>) = 0 [pid 5977] <... munmap resumed>) = 0 [pid 5977] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [ 95.488418][ T5974] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 95.528126][ T5974] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 95.540590][ T5974] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5977] close(5) = 0 [pid 5983] write(3, "1000", 4 [pid 5982] close(4 [ 95.543217][ T5838] udevd[5838]: incorrect nilfs2 checksum on /dev/loop3 [ 95.552205][ T5974] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 95.570600][ T5974] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 95.581718][ T5984] NILFS (loop3): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 5977] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5983] <... write resumed>) = 4 [pid 5982] <... close resumed>) = 0 [pid 5977] <... futex resumed>) = 1 [pid 5976] <... futex resumed>) = 0 [pid 5982] mkdir("./file2", 0777 [pid 5977] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5982] <... mkdir resumed>) = 0 [pid 5982] mount("/dev/loop1", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 5983] close(3 [pid 5979] <... mount resumed>) = 0 [pid 5976] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5979] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY) = 3 [pid 5979] chdir("./file2") = 0 [pid 5979] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5979] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5978] <... futex resumed>) = 0 [pid 5979] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5978] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5979] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5978] <... futex resumed>) = 0 [pid 5979] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 5978] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5979] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 5979] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5978] <... futex resumed>) = 0 [ 95.593183][ T5974] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 95.605166][ T5982] NILFS (loop1): broken superblock, retrying with spare superblock (blocksize = 1024) [ 95.605795][ T5974] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 95.620885][ T5855] udevd[5855]: incorrect nilfs2 checksum on /dev/loop1 [ 95.626666][ T5974] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5983] <... close resumed>) = 0 [pid 5979] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5978] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5977] <... futex resumed>) = 0 [pid 5976] <... futex resumed>) = 1 [pid 5979] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5978] <... futex resumed>) = 0 [pid 5977] fsync(-1 [pid 5979] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 5978] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5977] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 5983] symlink("/dev/binderfs", "./binderfs" [pid 5979] <... openat resumed>) = 4 [pid 5977] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5976] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5979] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5977] <... futex resumed>) = 0 [pid 5983] <... symlink resumed>) = 0 [pid 5979] <... futex resumed>) = 1 [pid 5978] <... futex resumed>) = 0 [pid 5977] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5976] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) executing program [pid 5983] write(1, "executing program\n", 18 [pid 5979] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5978] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5976] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5983] <... write resumed>) = 18 [pid 5979] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5978] <... futex resumed>) = 0 [pid 5983] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5979] read(-1, [pid 5978] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5977] <... futex resumed>) = 0 [pid 5976] <... futex resumed>) = 1 [pid 5976] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5983] <... futex resumed>) = 0 [pid 5979] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 5977] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5983] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, NULL, 8) = 0 [pid 5979] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5983] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5979] <... futex resumed>) = 1 [pid 5978] <... futex resumed>) = 0 [pid 5983] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5979] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5978] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5983] <... mmap resumed>) = 0x7f0d6adff000 [pid 5983] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE [pid 5979] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5978] <... futex resumed>) = 0 [pid 5983] <... mprotect resumed>) = 0 [pid 5979] memfd_create("syzkaller", 0 [pid 5978] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5977] <... openat resumed>) = 5 [pid 5983] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5979] <... memfd_create resumed>) = 5 [pid 5977] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5983] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5983] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0} [pid 5979] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5977] <... futex resumed>) = 1 [pid 5976] <... futex resumed>) = 0 [pid 5979] <... mmap resumed>) = 0x7f0d62800000 [pid 5977] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5976] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5983] <... clone3 resumed> => {parent_tid=[20]}, 88) = 20 [pid 5979] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5977] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5976] <... futex resumed>) = 0 [pid 5983] rt_sigprocmask(SIG_SETMASK, [], [pid 5976] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5983] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5983] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5979] <... write resumed>) = 524288 [pid 5977] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 5983] <... futex resumed>) = 0 [ 95.646141][ T5974] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 95.658112][ T5833] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 95.674186][ T5833] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5983] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5985 attached [pid 5982] <... mount resumed>) = 0 [pid 5982] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY) = 3 [pid 5982] chdir("./file2" [pid 5985] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 5982] <... chdir resumed>) = 0 [pid 5979] munmap(0x7f0d62800000, 138412032 [pid 5982] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5979] <... munmap resumed>) = 0 [pid 5985] <... rseq resumed>) = 0 [pid 5979] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5985] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 5982] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5979] close(5 [pid 5977] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 5976] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5982] <... futex resumed>) = 1 [pid 5976] futex(0x7f0d6aef46dc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5982] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5976] <... futex resumed>) = 0 [pid 5976] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5985] <... set_robust_list resumed>) = 0 [pid 5979] <... close resumed>) = 0 [pid 5977] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5976] <... mmap resumed>) = 0x7f0d6adde000 [pid 5985] rt_sigprocmask(SIG_SETMASK, [], [pid 5979] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5977] <... futex resumed>) = 0 [pid 5976] mprotect(0x7f0d6addf000, 131072, PROT_READ|PROT_WRITE [pid 5985] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5979] <... futex resumed>) = 1 [pid 5978] <... futex resumed>) = 0 [pid 5977] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5976] <... mprotect resumed>) = 0 [pid 5985] memfd_create("syzkaller", 0 [pid 5979] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5978] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5976] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5985] <... memfd_create resumed>) = 3 [pid 5979] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5978] <... futex resumed>) = 0 [pid 5976] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5985] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5979] fsync(-1 [pid 5978] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5976] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6adfe990, parent_tid=0x7f0d6adfe990, exit_signal=0, stack=0x7f0d6adde000, stack_size=0x20300, tls=0x7f0d6adfe6c0}./strace-static-x86_64: Process 5987 attached [pid 5985] <... mmap resumed>) = 0x7f0d62800000 [pid 5979] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 5987] rseq(0x7f0d6adfefe0, 0x20, 0, 0x53053053 [pid 5979] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5987] <... rseq resumed>) = 0 [pid 5976] <... clone3 resumed> => {parent_tid=[19]}, 88) = 19 [pid 5987] set_robust_list(0x7f0d6adfe9a0, 24 [pid 5979] <... futex resumed>) = 1 [pid 5978] <... futex resumed>) = 0 [pid 5976] rt_sigprocmask(SIG_SETMASK, [], [pid 5979] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5978] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5987] <... set_robust_list resumed>) = 0 [pid 5979] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5978] <... futex resumed>) = 0 [pid 5976] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5987] rt_sigprocmask(SIG_SETMASK, [], [pid 5985] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5981] <... futex resumed>) = 0 [pid 5976] futex(0x7f0d6aef46d8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5987] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5981] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5976] <... futex resumed>) = 0 [pid 5987] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 5982] <... futex resumed>) = 0 [pid 5981] <... futex resumed>) = 1 [pid 5982] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 5976] futex(0x7f0d6aef46dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5979] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5978] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5987] <... openat resumed>) = 6 [pid 5982] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 5981] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5979] <... openat resumed>) = 5 [pid 5987] futex(0x7f0d6aef46dc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5982] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5981] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5979] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5982] <... futex resumed>) = 0 [ 95.707502][ T5986] NILFS (loop1): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 95.722359][ T5980] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 95.739913][ T5833] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5981] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5979] <... futex resumed>) = 1 [pid 5978] <... futex resumed>) = 0 [pid 5987] <... futex resumed>) = 1 [pid 5982] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 5981] <... futex resumed>) = 0 [pid 5976] <... futex resumed>) = 0 [pid 5987] futex(0x7f0d6aef46d8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5982] <... openat resumed>) = 4 [pid 5981] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5979] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5978] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5976] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5979] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5978] <... futex resumed>) = 0 [pid 5982] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5981] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5979] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 5978] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5982] <... futex resumed>) = 0 [pid 5981] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5976] <... futex resumed>) = 1 [pid 5982] read(-1, [pid 5981] <... futex resumed>) = 0 [pid 5977] <... futex resumed>) = 0 [pid 5976] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5982] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 5981] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5982] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5985] <... write resumed>) = 1048576 [pid 5981] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5977] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 5982] <... futex resumed>) = 0 [pid 5981] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5979] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 5982] memfd_create("syzkaller", 0 [pid 5981] <... futex resumed>) = 0 [pid 5982] <... memfd_create resumed>) = 5 [pid 5981] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [ 95.799923][ T5833] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 95.817010][ T5984] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5982] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 [pid 5979] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5985] munmap(0x7f0d62800000, 138412032 [pid 5979] <... futex resumed>) = 1 [pid 5978] <... futex resumed>) = 0 [pid 5985] <... munmap resumed>) = 0 [pid 5979] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 5978] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5985] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5978] <... futex resumed>) = 0 [pid 5985] <... openat resumed>) = 4 [ 95.841461][ T5833] NILFS (loop0): disposed unprocessed dirty file(s) when stopping log writer [ 95.857971][ T5985] loop2: detected capacity change from 0 to 2048 [pid 5985] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5982] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5978] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5976] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5985] close(3 [pid 5979] <... openat resumed>) = 6 [pid 5985] <... close resumed>) = 0 [pid 5979] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5985] close(4 [pid 5979] <... futex resumed>) = 1 [pid 5985] <... close resumed>) = 0 [pid 5979] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5985] mkdir("./file2", 0777) = 0 [pid 5985] mount("/dev/loop2", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 5982] <... write resumed>) = 524288 [pid 5978] <... futex resumed>) = 0 [pid 5978] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5979] <... futex resumed>) = 0 [pid 5978] <... futex resumed>) = 1 [pid 5979] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 5982] munmap(0x7f0d62800000, 138412032 [pid 5978] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5982] <... munmap resumed>) = 0 [pid 5982] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5982] close(5) = 0 [pid 5982] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5833] <... umount2 resumed>) = 0 [pid 5982] <... futex resumed>) = 1 [pid 5981] <... futex resumed>) = 0 [ 95.890671][ T5985] NILFS (loop2): broken superblock, retrying with spare superblock (blocksize = 1024) [pid 5982] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 5981] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5985] <... mount resumed>) = 0 [pid 5982] fsync(-1 [pid 5981] <... futex resumed>) = 0 [pid 5985] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5982] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 5981] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5985] <... openat resumed>) = 3 [pid 5982] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5981] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5833] umount2("./7/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5985] chdir("./file2" [pid 5982] <... futex resumed>) = 0 [pid 5981] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5978] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5982] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5981] <... futex resumed>) = 0 [pid 5985] <... chdir resumed>) = 0 [pid 5982] <... openat resumed>) = 5 [pid 5981] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [ 95.936210][ T5988] NILFS (loop2): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 5833] newfstatat(AT_FDCWD, "./7/file2", [pid 5985] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5982] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5833] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5985] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5981] <... futex resumed>) = 0 [pid 5982] <... futex resumed>) = 1 [pid 5981] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5985] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5982] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 5981] <... futex resumed>) = 0 [pid 5983] <... futex resumed>) = 0 [pid 5985] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 5983] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5981] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5833] umount2("./7/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5985] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 5983] <... futex resumed>) = 0 [pid 5985] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 5983] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5985] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5983] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5985] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5983] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5985] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5983] <... futex resumed>) = 0 [pid 5833] openat(AT_FDCWD, "./7/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5985] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 5983] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5833] <... openat resumed>) = 4 [pid 5985] <... openat resumed>) = 4 [pid 5985] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5833] newfstatat(4, "", [pid 5985] <... futex resumed>) = 1 [pid 5983] <... futex resumed>) = 0 [pid 5982] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 5981] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5979] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 5833] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 5985] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5983] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5982] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5981] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5985] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5983] <... futex resumed>) = 0 [pid 5982] <... futex resumed>) = 0 [pid 5981] <... futex resumed>) = 0 [pid 5833] getdents64(4, [pid 5985] read(-1, [pid 5983] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5982] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 5981] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5979] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5977] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 5985] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 5979] <... futex resumed>) = 0 [pid 5978] close(3 [pid 5833] <... getdents64 resumed>0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 5985] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5979] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5977] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5976] close(3 [pid 5985] <... futex resumed>) = 1 [pid 5983] <... futex resumed>) = 0 [pid 5978] <... close resumed>) = 0 [pid 5977] <... futex resumed>) = 0 [pid 5833] getdents64(4, [pid 5985] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5983] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5978] close(4 [pid 5977] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5976] <... close resumed>) = 0 [pid 5833] <... getdents64 resumed>0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 5985] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5983] <... futex resumed>) = 0 [pid 5978] <... close resumed>) = 0 [pid 5833] close(4 [pid 5985] memfd_create("syzkaller", 0 [pid 5983] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5976] close(4 [pid 5985] <... memfd_create resumed>) = 5 [pid 5978] close(5 [pid 5833] <... close resumed>) = 0 [pid 5976] <... close resumed>) = 0 [pid 5833] rmdir("./7/file2" [pid 5978] <... close resumed>) = 0 [pid 5976] close(5 [pid 5833] <... rmdir resumed>) = 0 [pid 5978] close(6 [pid 5985] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5976] <... close resumed>) = 0 [pid 5833] getdents64(3, [pid 5985] <... mmap resumed>) = 0x7f0d62800000 [pid 5982] <... openat resumed>) = 6 [pid 5978] <... close resumed>) = 0 [pid 5976] close(6 [pid 5833] <... getdents64 resumed>0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 5978] close(7 [pid 5833] close(3 [pid 5978] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5976] <... close resumed>) = 0 [pid 5978] close(8 [pid 5833] <... close resumed>) = 0 [pid 5978] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5976] close(7 [pid 5982] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5833] rmdir("./7" [pid 5978] close(9 [pid 5976] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5982] <... futex resumed>) = 1 [pid 5981] <... futex resumed>) = 0 [pid 5978] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5976] close(8 [pid 5833] <... rmdir resumed>) = 0 [pid 5978] close(10 [pid 5976] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5981] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5833] mkdir("./8", 0777 [pid 5985] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5982] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 5981] <... futex resumed>) = 0 [pid 5978] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5976] close(9) = -1 EBADF (Bad file descriptor) [pid 5833] <... mkdir resumed>) = 0 [pid 5978] close(11 [pid 5976] close(10 [pid 5833] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5981] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5978] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5976] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5978] close(12 [pid 5976] close(11 [pid 5833] <... openat resumed>) = 3 [pid 5978] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5976] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5833] ioctl(3, LOOP_CLR_FD [pid 5978] close(13 [pid 5976] close(12 [pid 5978] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5976] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5833] <... ioctl resumed>) = 0 [pid 5978] close(14 [pid 5976] close(13 [pid 5833] close(3 [pid 5978] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5976] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5978] close(15 [pid 5976] close(14 [pid 5833] <... close resumed>) = 0 [pid 5978] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5976] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5978] close(16 [pid 5976] close(15 [pid 5978] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5978] close(17 [pid 5976] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5978] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5978] close(18) = -1 EBADF (Bad file descriptor) [pid 5978] close(19) = -1 EBADF (Bad file descriptor) [pid 5978] close(20) = -1 EBADF (Bad file descriptor) [pid 5978] close(21) = -1 EBADF (Bad file descriptor) [ 96.058043][ T5984] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 96.059365][ T5986] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 96.081842][ T5980] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5978] close(22) = -1 EBADF (Bad file descriptor) [pid 5978] close(23) = -1 EBADF (Bad file descriptor) [pid 5978] close(24 [pid 5976] close(16 [pid 5978] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5978] close(25) = -1 EBADF (Bad file descriptor) [pid 5976] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5978] close(26 [pid 5976] close(17 [pid 5978] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5978] close(27) = -1 EBADF (Bad file descriptor) [pid 5978] close(28) = -1 EBADF (Bad file descriptor) [pid 5978] close(29 [pid 5976] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5978] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5978] exit_group(0 [pid 5985] <... write resumed>) = 524288 ./strace-static-x86_64: Process 5989 attached [pid 5979] <... futex resumed>) = ? [pid 5978] <... exit_group resumed>) = ? [pid 5976] close(18 [pid 5989] set_robust_list(0x55555fa3c6a0, 24 [pid 5979] +++ exited with 0 +++ [pid 5989] <... set_robust_list resumed>) = 0 [pid 5989] chdir("./8") = 0 [pid 5989] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5989] setpgid(0, 0) = 0 [pid 5989] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5978] +++ exited with 0 +++ [pid 5989] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 5976] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5989] <... symlink resumed>) = 0 [pid 5976] close(19 [pid 5989] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 5976] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5989] <... symlink resumed>) = 0 [pid 5833] <... clone resumed>, child_tidptr=0x55555fa3c690) = 24 [pid 5989] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5985] munmap(0x7f0d62800000, 138412032 [pid 5989] <... openat resumed>) = 3 [pid 5976] close(20 [pid 5989] write(3, "1000", 4 [pid 5835] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 5989] <... write resumed>) = 4 [pid 5976] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5989] close(3 [pid 5976] close(21 [pid 5989] <... close resumed>) = 0 [pid 5989] symlink("/dev/binderfs", "./binderfs" [pid 5985] <... munmap resumed>) = 0 [pid 5976] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5989] <... symlink resumed>) = 0 [pid 5985] openat(AT_FDCWD, "/dev/loop2", O_RDWRexecuting program [pid 5976] close(22 [pid 5989] write(1, "executing program\n", 18 [pid 5985] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5835] umount2("./7", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5989] <... write resumed>) = 18 [pid 5985] close(5 [pid 5976] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5989] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5989] <... futex resumed>) = 0 [pid 5976] close(23 [pid 5835] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5989] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, [pid 5976] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5989] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5981] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5976] close(24 [pid 5835] <... openat resumed>) = 3 [pid 5976] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5835] newfstatat(3, "", [pid 5976] close(25 [pid 5835] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 5976] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5976] close(26) = -1 EBADF (Bad file descriptor) [pid 5989] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5976] close(27 [pid 5835] getdents64(3, [pid 5989] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5976] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5989] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5976] close(28 [pid 5835] <... getdents64 resumed>0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 5989] <... mmap resumed>) = 0x7f0d6adff000 [pid 5976] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5989] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE [pid 5835] umount2("./7/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5976] close(29 [pid 5989] <... mprotect resumed>) = 0 [pid 5989] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5976] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5989] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5985] <... close resumed>) = 0 [pid 5989] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0} [pid 5976] exit_group(0 [pid 5835] newfstatat(AT_FDCWD, "./7/cgroup", ./strace-static-x86_64: Process 5990 attached [pid 5985] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5977] <... futex resumed>) = ? [pid 5976] <... exit_group resumed>) = ? [pid 5990] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 5989] <... clone3 resumed> => {parent_tid=[25]}, 88) = 25 [pid 5987] <... futex resumed>) = ? [pid 5835] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5977] +++ exited with 0 +++ [pid 5990] <... rseq resumed>) = 0 [pid 5989] rt_sigprocmask(SIG_SETMASK, [], [pid 5985] <... futex resumed>) = 1 [pid 5983] <... futex resumed>) = 0 [pid 5990] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 5989] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5985] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5990] <... set_robust_list resumed>) = 0 [pid 5989] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5985] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5983] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5835] unlink("./7/cgroup" [pid 5990] rt_sigprocmask(SIG_SETMASK, [], [pid 5989] <... futex resumed>) = 0 [pid 5985] fsync(-1 [pid 5983] <... futex resumed>) = 0 [pid 5990] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5989] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5985] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 5983] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5835] <... unlink resumed>) = 0 [pid 5990] memfd_create("syzkaller", 0 [pid 5985] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5983] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5990] <... memfd_create resumed>) = 3 [pid 5985] <... futex resumed>) = 0 [pid 5990] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5985] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5983] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5835] umount2("./7/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5987] +++ exited with 0 +++ [pid 5983] <... futex resumed>) = 0 [pid 5976] +++ exited with 0 +++ [pid 5983] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5837] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=17, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5990] <... mmap resumed>) = 0x7f0d62800000 [pid 5990] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5985] <... openat resumed>) = 5 [pid 5835] newfstatat(AT_FDCWD, "./7/cgroup.cpu", [pid 5985] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5835] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5985] <... futex resumed>) = 1 [pid 5983] <... futex resumed>) = 0 [pid 5985] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5835] unlink("./7/cgroup.cpu" [pid 5985] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5983] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5985] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 5983] <... futex resumed>) = 0 [pid 5835] <... unlink resumed>) = 0 [pid 5983] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5837] umount2("./7", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5835] umount2("./7/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5985] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5985] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5835] newfstatat(AT_FDCWD, "./7/cgroup.net", [pid 5985] <... futex resumed>) = 1 [pid 5983] <... futex resumed>) = 0 [pid 5985] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5983] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] <... openat resumed>) = 3 [pid 5835] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5985] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5983] <... futex resumed>) = 0 [pid 5837] newfstatat(3, "", [pid 5835] unlink("./7/cgroup.net" [pid 5985] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 5983] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5990] <... write resumed>) = 1048576 [pid 5990] munmap(0x7f0d62800000, 138412032) = 0 [pid 5985] <... openat resumed>) = 6 [pid 5985] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5835] <... unlink resumed>) = 0 [pid 5990] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5985] <... futex resumed>) = 1 [pid 5983] <... futex resumed>) = 0 [pid 5837] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 5835] umount2("./7/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5985] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 5983] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] getdents64(3, [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5990] <... openat resumed>) = 4 [pid 5983] <... futex resumed>) = 0 [pid 5835] newfstatat(AT_FDCWD, "./7/binderfs", [pid 5983] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5837] <... getdents64 resumed>0x55555fa3d730 /* 7 entries */, 32768) = 208 [ 96.211514][ T5988] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5990] ioctl(4, LOOP_SET_FD, 3 [pid 5835] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5835] unlink("./7/binderfs" [pid 5837] umount2("./7/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5837] newfstatat(AT_FDCWD, "./7/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5837] unlink("./7/cgroup") = 0 [pid 5837] umount2("./7/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5837] newfstatat(AT_FDCWD, "./7/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5837] unlink("./7/cgroup.cpu") = 0 [pid 5837] umount2("./7/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5837] newfstatat(AT_FDCWD, "./7/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5837] unlink("./7/cgroup.net") = 0 [pid 5837] umount2("./7/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5837] newfstatat(AT_FDCWD, "./7/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5837] unlink("./7/binderfs" [pid 5990] <... ioctl resumed>) = 0 [pid 5837] <... unlink resumed>) = 0 [pid 5837] umount2("./7/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5835] <... unlink resumed>) = 0 [pid 5990] close(3 [pid 5835] umount2("./7/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5990] <... close resumed>) = 0 [pid 5990] close(4) = 0 [ 96.260994][ T5990] loop0: detected capacity change from 0 to 2048 [ 96.273536][ T5980] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 96.274317][ T5984] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5990] mkdir("./file2", 0777) = 0 [pid 5983] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [ 96.302764][ T5980] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 96.319767][ T5984] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 96.341007][ T5980] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 96.341236][ T5838] udevd[5838]: incorrect nilfs2 checksum on /dev/loop0 [ 96.361985][ T5980] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 96.370677][ T5984] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 96.383795][ T5990] NILFS (loop0): broken superblock, retrying with spare superblock (blocksize = 1024) [ 96.395619][ T5984] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 96.395850][ T5980] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 96.418031][ T5984] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 96.422725][ T5986] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 96.440639][ T5984] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5990] mount("/dev/loop0", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 5982] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 5990] <... mount resumed>) = 0 [pid 5981] close(3 [pid 5982] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5990] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5982] <... futex resumed>) = 0 [pid 5981] <... close resumed>) = 0 [ 96.458033][ T5991] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 96.460175][ T5984] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 96.481142][ T5980] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 96.481782][ T5984] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5990] <... openat resumed>) = 3 [pid 5982] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5981] close(4 [pid 5990] chdir("./file2" [pid 5981] <... close resumed>) = 0 [pid 5990] <... chdir resumed>) = 0 [ 96.503202][ T5980] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 96.505283][ T5984] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 96.525308][ T5980] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 96.526929][ T5984] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 96.540719][ T5988] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5981] close(5 [pid 5990] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5985] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 5981] <... close resumed>) = 0 [pid 5990] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5985] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5983] close(3 [pid 5981] close(6 [pid 5990] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5985] <... futex resumed>) = 0 [pid 5983] <... close resumed>) = 0 [pid 5981] <... close resumed>) = 0 [pid 5990] <... futex resumed>) = 1 [pid 5989] <... futex resumed>) = 0 [pid 5985] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5983] close(4 [pid 5981] close(7 [pid 5990] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5989] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5983] <... close resumed>) = 0 [pid 5981] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5990] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5989] <... futex resumed>) = 0 [pid 5983] close(5 [pid 5981] close(8 [pid 5990] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 5989] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5983] <... close resumed>) = 0 [pid 5981] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5990] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 5983] close(6 [pid 5981] close(9 [pid 5990] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5983] <... close resumed>) = 0 [pid 5981] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5990] <... futex resumed>) = 1 [pid 5989] <... futex resumed>) = 0 [pid 5983] close(7 [pid 5981] close(10 [pid 5990] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 5989] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5983] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5981] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5990] <... openat resumed>) = 4 [pid 5989] <... futex resumed>) = 0 [pid 5983] close(8 [pid 5981] close(11 [pid 5990] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5989] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5983] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5981] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5990] <... futex resumed>) = 0 [pid 5989] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5983] close(9 [pid 5981] close(12 [pid 5990] read(-1, [pid 5989] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5983] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5981] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5990] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 5989] <... futex resumed>) = 0 [pid 5983] close(10 [pid 5981] close(13 [pid 5990] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5989] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5983] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5981] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5990] <... futex resumed>) = 0 [pid 5989] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5983] close(11 [pid 5981] close(14 [pid 5990] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5989] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5983] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5981] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5990] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5989] <... futex resumed>) = 0 [pid 5983] close(12 [pid 5981] close(15 [pid 5990] memfd_create("syzkaller", 0 [pid 5989] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5983] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5981] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5990] <... memfd_create resumed>) = 5 [pid 5983] close(13 [pid 5981] close(16 [pid 5990] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5983] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5981] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5990] <... mmap resumed>) = 0x7f0d62800000 [ 96.549713][ T5984] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 96.570003][ T5984] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 96.570575][ T5980] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 96.591838][ T5984] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 96.593543][ T5980] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5983] close(14 [pid 5981] close(17 [pid 5990] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5983] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5981] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5983] close(15 [pid 5981] close(18 [pid 5983] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5981] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5983] close(16 [pid 5981] close(19 [pid 5990] <... write resumed>) = 524288 [pid 5983] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5981] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5983] close(17 [pid 5981] close(20 [pid 5983] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5981] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5983] close(18 [pid 5981] close(21 [pid 5983] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5981] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5983] close(19 [pid 5981] close(22 [pid 5983] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5981] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5983] close(20 [pid 5981] close(23 [pid 5983] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5981] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5983] close(21 [pid 5981] close(24 [pid 5983] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5981] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5983] close(22 [pid 5981] close(25 [pid 5983] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5981] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5983] close(23 [pid 5981] close(26 [pid 5983] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5981] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5983] close(24 [pid 5981] close(27 [pid 5983] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5981] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5983] close(25 [pid 5981] close(28 [pid 5983] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5981] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5983] close(26 [pid 5981] close(29 [pid 5983] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5981] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5983] close(27) = -1 EBADF (Bad file descriptor) [pid 5981] exit_group(0 [pid 5983] close(28 [pid 5982] <... futex resumed>) = ? [pid 5981] <... exit_group resumed>) = ? [pid 5983] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5982] +++ exited with 0 +++ [pid 5981] +++ exited with 0 +++ [pid 5983] close(29 [pid 5834] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [pid 5983] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5983] exit_group(0 [pid 5990] munmap(0x7f0d62800000, 138412032 [pid 5985] <... futex resumed>) = ? [pid 5983] <... exit_group resumed>) = ? [pid 5990] <... munmap resumed>) = 0 [pid 5985] +++ exited with 0 +++ [pid 5983] +++ exited with 0 +++ [pid 5990] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5836] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19, si_uid=0, si_status=0, si_utime=0, si_stime=22 /* 0.22 s */} --- [pid 5990] close(5 [pid 5836] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5990] <... close resumed>) = 0 [pid 5836] umount2("./7", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5836] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5836] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 5834] umount2("./8", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5836] getdents64(3, [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5836] <... getdents64 resumed>0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 5834] openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5836] umount2("./7/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5834] <... openat resumed>) = 3 [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5834] newfstatat(3, "", [pid 5990] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5836] newfstatat(AT_FDCWD, "./7/cgroup", [pid 5834] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 5990] <... futex resumed>) = 1 [pid 5989] <... futex resumed>) = 0 [pid 5836] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5834] getdents64(3, [pid 5990] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5989] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5836] unlink("./7/cgroup" [pid 5834] <... getdents64 resumed>0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 5990] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5989] <... futex resumed>) = 0 [pid 5836] <... unlink resumed>) = 0 [pid 5834] umount2("./8/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5990] fsync(-1 [pid 5989] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5836] umount2("./7/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5990] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5834] newfstatat(AT_FDCWD, "./8/cgroup", [pid 5990] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5836] newfstatat(AT_FDCWD, "./7/cgroup.cpu", [pid 5834] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5990] <... futex resumed>) = 1 [pid 5989] <... futex resumed>) = 0 [pid 5836] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [ 96.618241][ T5980] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 96.634719][ T5984] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 96.635188][ T5980] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5834] unlink("./8/cgroup" [pid 5990] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5989] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5836] unlink("./7/cgroup.cpu" [pid 5834] <... unlink resumed>) = 0 [pid 5990] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5989] <... futex resumed>) = 0 [pid 5836] <... unlink resumed>) = 0 [pid 5834] umount2("./8/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5990] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5989] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5836] umount2("./7/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5834] newfstatat(AT_FDCWD, "./8/cgroup.cpu", [pid 5836] newfstatat(AT_FDCWD, "./7/cgroup.net", [pid 5834] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5836] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5834] unlink("./8/cgroup.cpu" [pid 5836] unlink("./7/cgroup.net" [pid 5834] <... unlink resumed>) = 0 [pid 5836] <... unlink resumed>) = 0 [pid 5834] umount2("./8/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5836] umount2("./7/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5834] newfstatat(AT_FDCWD, "./8/cgroup.net", [pid 5836] newfstatat(AT_FDCWD, "./7/binderfs", [pid 5834] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5836] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5834] unlink("./8/cgroup.net" [pid 5836] unlink("./7/binderfs" [pid 5834] <... unlink resumed>) = 0 [pid 5836] <... unlink resumed>) = 0 [pid 5834] umount2("./8/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5836] umount2("./7/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5834] newfstatat(AT_FDCWD, "./8/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5834] unlink("./8/binderfs") = 0 [pid 5834] umount2("./8/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5990] <... openat resumed>) = 5 [ 96.658598][ T5980] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 96.669863][ T5980] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 96.681810][ T5984] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 96.693416][ T5980] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 96.696534][ T5986] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5990] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5989] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5989] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 96.705234][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 96.717470][ T5986] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 96.725253][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 96.736085][ T5988] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 96.746577][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5989] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5990] <... futex resumed>) = 1 [pid 5989] <... futex resumed>) = 0 [pid 5990] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [ 96.761991][ T5835] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 96.768184][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 96.780251][ T5835] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 96.789647][ T5837] NILFS (loop4): disposed unprocessed dirty file(s) when stopping log writer [pid 5989] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=7000000}) = -1 ETIMEDOUT (Connection timed out) [pid 5989] futex(0x7f0d6aef46dc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5989] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0d6adde000 [pid 5989] mprotect(0x7f0d6addf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5989] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5989] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6adfe990, parent_tid=0x7f0d6adfe990, exit_signal=0, stack=0x7f0d6adde000, stack_size=0x20300, tls=0x7f0d6adfe6c0}./strace-static-x86_64: Process 5992 attached [pid 5992] rseq(0x7f0d6adfefe0, 0x20, 0, 0x53053053 [pid 5989] <... clone3 resumed> => {parent_tid=[26]}, 88) = 26 [pid 5992] <... rseq resumed>) = 0 [pid 5989] rt_sigprocmask(SIG_SETMASK, [], [pid 5992] set_robust_list(0x7f0d6adfe9a0, 24 [pid 5989] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5992] <... set_robust_list resumed>) = 0 [pid 5989] futex(0x7f0d6aef46d8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5992] rt_sigprocmask(SIG_SETMASK, [], [pid 5989] <... futex resumed>) = 0 [pid 5992] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5989] futex(0x7f0d6aef46dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5992] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 5837] <... umount2 resumed>) = 0 [ 96.803803][ T5835] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 96.833141][ T5986] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 96.846619][ T5835] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 96.847118][ T5991] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5837] umount2("./7/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5992] <... openat resumed>) = 6 [pid 5990] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5992] futex(0x7f0d6aef46dc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] newfstatat(AT_FDCWD, "./7/file2", [pid 5992] <... futex resumed>) = 1 [pid 5989] <... futex resumed>) = 0 [pid 5837] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [ 96.857682][ T5988] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 96.868222][ T5835] NILFS (loop3): disposed unprocessed dirty file(s) when stopping log writer [ 96.883045][ T5988] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 96.900247][ T5986] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5990] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5989] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] umount2("./7/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5992] futex(0x7f0d6aef46d8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5989] <... futex resumed>) = 0 [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5989] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5837] openat(AT_FDCWD, "./7/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5837] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 5837] getdents64(4, 0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 5837] getdents64(4, 0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 5837] close(4) = 0 [pid 5837] rmdir("./7/file2") = 0 [pid 5837] getdents64(3, 0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 5837] close(3) = 0 [pid 5837] rmdir("./7") = 0 [pid 5837] mkdir("./8", 0777) = 0 [pid 5837] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5837] ioctl(3, LOOP_CLR_FD) = 0 [pid 5837] close(3 [pid 5990] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 5837] <... close resumed>) = 0 [ 96.907983][ T5988] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 96.926178][ T5988] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 96.926231][ T5986] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5837] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5993 attached [pid 5835] <... umount2 resumed>) = 0 [pid 5835] umount2("./7/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5993] set_robust_list(0x55555fa3c6a0, 24 [pid 5989] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5837] <... clone resumed>, child_tidptr=0x55555fa3c690) = 20 [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5835] newfstatat(AT_FDCWD, "./7/file2", [pid 5993] <... set_robust_list resumed>) = 0 [pid 5835] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5993] chdir("./8" [pid 5835] umount2("./7/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5993] <... chdir resumed>) = 0 [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5993] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5835] openat(AT_FDCWD, "./7/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5993] <... prctl resumed>) = 0 [ 96.961527][ T5986] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 96.976697][ T5986] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 96.991254][ T5986] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 97.004682][ T5988] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5993] setpgid(0, 0 [pid 5835] <... openat resumed>) = 4 [pid 5993] <... setpgid resumed>) = 0 [pid 5835] newfstatat(4, "", [pid 5993] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 5835] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [ 97.005286][ T5986] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 97.028275][ T5988] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 97.028357][ T5986] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 97.049828][ T5988] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5835] getdents64(4, [pid 5993] <... symlink resumed>) = 0 [pid 5835] <... getdents64 resumed>0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 5993] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [ 97.052637][ T5986] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 97.074090][ T5986] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 97.086057][ T5988] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 97.087939][ T5986] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 97.108377][ T5988] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5835] getdents64(4, [pid 5993] <... symlink resumed>) = 0 [pid 5835] <... getdents64 resumed>0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 5993] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 5835] close(4 [pid 5993] <... symlink resumed>) = 0 [pid 5835] <... close resumed>) = 0 [ 97.108613][ T5986] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 97.129814][ T5988] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 97.129974][ T5988] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 97.153842][ T5986] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5993] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5835] rmdir("./7/file2") = 0 [pid 5993] <... openat resumed>) = 3 [pid 5835] getdents64(3, [pid 5993] write(3, "1000", 4 [pid 5990] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 5835] <... getdents64 resumed>0x55555fa3d730 /* 0 entries */, 32768) = 0 [ 97.154510][ T5988] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 97.176605][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 97.187798][ T5991] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 97.200072][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 97.201545][ T5988] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5990] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5990] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5989] close(3) = 0 [pid 5989] close(4) = 0 [pid 5989] close(5) = 0 [pid 5989] close(6) = 0 [pid 5989] close(7) = -1 EBADF (Bad file descriptor) [pid 5989] close(8) = -1 EBADF (Bad file descriptor) [pid 5989] close(9 [pid 5993] <... write resumed>) = 4 [pid 5989] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5835] close(3 [pid 5989] close(10) = -1 EBADF (Bad file descriptor) [pid 5989] close(11) = -1 EBADF (Bad file descriptor) [pid 5989] close(12) = -1 EBADF (Bad file descriptor) [pid 5989] close(13) = -1 EBADF (Bad file descriptor) [pid 5989] close(14) = -1 EBADF (Bad file descriptor) [pid 5989] close(15) = -1 EBADF (Bad file descriptor) [pid 5989] close(16) = -1 EBADF (Bad file descriptor) [pid 5989] close(17) = -1 EBADF (Bad file descriptor) [pid 5989] close(18) = -1 EBADF (Bad file descriptor) [pid 5989] close(19) = -1 EBADF (Bad file descriptor) [pid 5989] close(20) = -1 EBADF (Bad file descriptor) [pid 5989] close(21) = -1 EBADF (Bad file descriptor) [pid 5989] close(22) = -1 EBADF (Bad file descriptor) [pid 5989] close(23) = -1 EBADF (Bad file descriptor) [pid 5989] close(24) = -1 EBADF (Bad file descriptor) [pid 5989] close(25) = -1 EBADF (Bad file descriptor) [pid 5993] close(3 [pid 5989] close(26 [pid 5835] <... close resumed>) = 0 [pid 5989] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5989] close(27) = -1 EBADF (Bad file descriptor) [pid 5989] close(28) = -1 EBADF (Bad file descriptor) [pid 5989] close(29) = -1 EBADF (Bad file descriptor) [pid 5989] exit_group(0 [pid 5992] <... futex resumed>) = ? [pid 5990] <... futex resumed>) = ? [pid 5989] <... exit_group resumed>) = ? [pid 5993] <... close resumed>) = 0 [pid 5992] +++ exited with 0 +++ [pid 5990] +++ exited with 0 +++ [pid 5989] +++ exited with 0 +++ [pid 5835] rmdir("./7" [pid 5993] symlink("/dev/binderfs", "./binderfs" [pid 5835] <... rmdir resumed>) = 0 [pid 5993] <... symlink resumed>) = 0 [pid 5835] mkdir("./8", 0777 [pid 5993] write(1, "executing program\n", 18executing program ) = 18 [pid 5835] <... mkdir resumed>) = 0 [pid 5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=24, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 5993] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5835] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5993] <... futex resumed>) = 0 [pid 5833] restart_syscall(<... resuming interrupted clone ...> [pid 5993] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, NULL, 8) = 0 [pid 5993] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5835] <... openat resumed>) = 3 [pid 5993] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5835] ioctl(3, LOOP_CLR_FD [pid 5993] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0d6adff000 [pid 5835] <... ioctl resumed>) = 0 [pid 5993] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE) = 0 [ 97.211667][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 97.233559][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 97.244869][ T5834] NILFS (loop1): disposed unprocessed dirty file(s) when stopping log writer [ 97.256484][ T5988] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5835] close(3 [pid 5993] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5835] <... close resumed>) = 0 [pid 5833] <... restart_syscall resumed>) = 0 [pid 5993] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5835] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5993] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0}./strace-static-x86_64: Process 5994 attached ./strace-static-x86_64: Process 5995 attached [pid 5835] <... clone resumed>, child_tidptr=0x55555fa3c690) = 21 [pid 5834] <... umount2 resumed>) = 0 [pid 5995] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 5993] <... clone3 resumed> => {parent_tid=[21]}, 88) = 21 [pid 5833] umount2("./8", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5995] <... rseq resumed>) = 0 [pid 5834] umount2("./8/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5994] set_robust_list(0x55555fa3c6a0, 24 [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5994] <... set_robust_list resumed>) = 0 [pid 5834] newfstatat(AT_FDCWD, "./8/file2", [pid 5994] chdir("./8" [pid 5834] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5994] <... chdir resumed>) = 0 [pid 5834] umount2("./8/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5994] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5994] <... prctl resumed>) = 0 [pid 5834] openat(AT_FDCWD, "./8/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5994] setpgid(0, 0 [pid 5834] <... openat resumed>) = 4 [pid 5994] <... setpgid resumed>) = 0 [pid 5834] newfstatat(4, "", [pid 5994] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5993] rt_sigprocmask(SIG_SETMASK, [], [pid 5995] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 5834] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5834] getdents64(4, 0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 5834] getdents64(4, 0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 5834] close(4) = 0 [pid 5834] rmdir("./8/file2") = 0 [pid 5994] <... symlink resumed>) = 0 [pid 5834] getdents64(3, 0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 5994] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu") = 0 [pid 5834] close(3 [pid 5994] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5834] <... close resumed>) = 0 [pid 5995] <... set_robust_list resumed>) = 0 [pid 5994] <... symlink resumed>) = 0 [pid 5993] <... rt_sigprocmask resumed>NULL, 8) = 0 [ 97.283123][ T5836] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 97.299143][ T5836] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5834] rmdir("./8" [pid 5833] openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5995] rt_sigprocmask(SIG_SETMASK, [], [pid 5994] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5993] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5834] <... rmdir resumed>) = 0 [pid 5995] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5993] <... futex resumed>) = 0 [pid 5833] <... openat resumed>) = 3 [pid 5993] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5833] newfstatat(3, "", [pid 5995] memfd_create("syzkaller", 0 [pid 5994] <... openat resumed>) = 3 [pid 5834] mkdir("./9", 0777 [pid 5833] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 5995] <... memfd_create resumed>) = 3 [pid 5833] getdents64(3, [pid 5995] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5833] <... getdents64 resumed>0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 5995] <... mmap resumed>) = 0x7f0d62800000 [pid 5834] <... mkdir resumed>) = 0 [pid 5833] umount2("./8/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5994] write(3, "1000", 4) = 4 [pid 5834] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5994] close(3 [pid 5834] <... openat resumed>) = 3 [pid 5994] <... close resumed>) = 0 [pid 5834] ioctl(3, LOOP_CLR_FD [pid 5994] symlink("/dev/binderfs", "./binderfs" [pid 5834] <... ioctl resumed>) = 0 [pid 5994] <... symlink resumed>) = 0 [pid 5834] close(3 [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) executing program [pid 5995] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5994] write(1, "executing program\n", 18 [pid 5833] newfstatat(AT_FDCWD, "./8/cgroup", [pid 5994] <... write resumed>) = 18 [pid 5994] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5833] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5994] <... futex resumed>) = 0 [pid 5833] unlink("./8/cgroup" [pid 5994] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, NULL, 8) = 0 [pid 5833] <... unlink resumed>) = 0 [pid 5994] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5833] umount2("./8/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5994] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5994] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0d6adff000 [pid 5833] newfstatat(AT_FDCWD, "./8/cgroup.cpu", [pid 5994] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5833] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5994] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5833] unlink("./8/cgroup.cpu" [pid 5994] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0}./strace-static-x86_64: Process 5996 attached [pid 5834] <... close resumed>) = 0 [pid 5833] <... unlink resumed>) = 0 [pid 5996] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 5994] <... clone3 resumed> => {parent_tid=[22]}, 88) = 22 [pid 5833] umount2("./8/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5996] <... rseq resumed>) = 0 [pid 5996] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 5994] rt_sigprocmask(SIG_SETMASK, [], [pid 5834] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5996] <... set_robust_list resumed>) = 0 [pid 5994] <... rt_sigprocmask resumed>NULL, 8) = 0 [ 97.328088][ T5836] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5833] newfstatat(AT_FDCWD, "./8/cgroup.net", [pid 5996] rt_sigprocmask(SIG_SETMASK, [], [pid 5995] <... write resumed>) = 1048576 [pid 5994] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5996] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5833] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 ./strace-static-x86_64: Process 5997 attached [pid 5996] memfd_create("syzkaller", 0 [pid 5994] <... futex resumed>) = 0 [pid 5833] unlink("./8/cgroup.net" [pid 5996] <... memfd_create resumed>) = 3 [pid 5994] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5833] <... unlink resumed>) = 0 [pid 5996] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5833] umount2("./8/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5997] set_robust_list(0x55555fa3c6a0, 24 [pid 5996] <... mmap resumed>) = 0x7f0d62800000 [pid 5834] <... clone resumed>, child_tidptr=0x55555fa3c690) = 25 [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5997] <... set_robust_list resumed>) = 0 [pid 5997] chdir("./9") = 0 [pid 5997] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5997] setpgid(0, 0) = 0 [pid 5997] symlink("/syzcgroup/unified/syz1", "./cgroup") = 0 [pid 5996] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5833] newfstatat(AT_FDCWD, "./8/binderfs", [pid 5995] munmap(0x7f0d62800000, 138412032 [pid 5997] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 5833] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5997] <... symlink resumed>) = 0 [pid 5995] <... munmap resumed>) = 0 [pid 5997] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 5995] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5833] unlink("./8/binderfs" [pid 5997] <... symlink resumed>) = 0 [pid 5995] <... openat resumed>) = 4 [pid 5997] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5995] ioctl(4, LOOP_SET_FD, 3 [pid 5833] <... unlink resumed>) = 0 [pid 5997] <... openat resumed>) = 3 [pid 5997] write(3, "1000", 4) = 4 [pid 5997] close(3) = 0 [pid 5997] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5997] write(1, "executing program\n", 18) = 18 [pid 5997] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5833] umount2("./8/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5997] <... futex resumed>) = 0 [pid 5997] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, NULL, 8) = 0 [pid 5997] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5997] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0d6adff000 [pid 5997] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5997] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [ 97.374806][ T5836] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 97.404387][ T5995] loop4: detected capacity change from 0 to 2048 [pid 5997] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0} => {parent_tid=[26]}, 88) = 26 [pid 5997] rt_sigprocmask(SIG_SETMASK, [], [pid 5995] <... ioctl resumed>) = 0 [pid 5995] close(3./strace-static-x86_64: Process 5998 attached [pid 5997] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5995] <... close resumed>) = 0 [pid 5998] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 5997] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5997] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5998] <... rseq resumed>) = 0 [pid 5995] close(4) = 0 [pid 5998] set_robust_list(0x7f0d6ae1f9a0, 24) = 0 [ 97.414555][ T5991] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 97.422428][ T5836] NILFS (loop2): disposed unprocessed dirty file(s) when stopping log writer [ 97.438818][ T5991] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5995] mkdir("./file2", 0777 [pid 5998] rt_sigprocmask(SIG_SETMASK, [], [pid 5996] <... write resumed>) = 1048576 [pid 5995] <... mkdir resumed>) = 0 [pid 5836] <... umount2 resumed>) = 0 [pid 5995] mount("/dev/loop4", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 5998] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5996] munmap(0x7f0d62800000, 138412032 [ 97.473323][ T5991] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 97.486248][ T5991] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 97.498335][ T5991] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 97.511066][ T5991] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5836] umount2("./7/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5998] memfd_create("syzkaller", 0 [pid 5996] <... munmap resumed>) = 0 [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5998] <... memfd_create resumed>) = 3 [pid 5836] newfstatat(AT_FDCWD, "./7/file2", [pid 5998] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 [pid 5998] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5996] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5836] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5996] <... openat resumed>) = 4 [pid 5836] umount2("./7/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5996] ioctl(4, LOOP_SET_FD, 3 [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5836] openat(AT_FDCWD, "./7/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [ 97.515149][ T5995] NILFS (loop4): broken superblock, retrying with spare superblock (blocksize = 1024) [ 97.522317][ T5991] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 97.534673][ T5838] udevd[5838]: incorrect nilfs2 checksum on /dev/loop4 [ 97.551755][ T5991] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 97.565319][ T5996] loop3: detected capacity change from 0 to 2048 [pid 5836] newfstatat(4, "", [pid 5996] <... ioctl resumed>) = 0 [pid 5995] <... mount resumed>) = 0 [pid 5995] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY) = 3 [pid 5995] chdir("./file2") = 0 [pid 5995] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5995] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5996] close(3 [pid 5993] <... futex resumed>) = 0 [pid 5836] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 5995] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5998] <... write resumed>) = 1048576 [pid 5996] <... close resumed>) = 0 [pid 5993] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5836] getdents64(4, [pid 5998] munmap(0x7f0d62800000, 138412032 [pid 5996] close(4 [pid 5995] <... futex resumed>) = 0 [pid 5993] <... futex resumed>) = 1 [pid 5836] <... getdents64 resumed>0x55555fa45770 /* 2 entries */, 32768) = 48 [ 97.573731][ T5991] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 97.583286][ T5999] NILFS (loop4): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 97.586402][ T5991] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 97.607082][ T5991] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5998] <... munmap resumed>) = 0 [pid 5996] <... close resumed>) = 0 [pid 5995] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 5993] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5836] getdents64(4, [pid 5998] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5996] mkdir("./file2", 0777 [pid 5836] <... getdents64 resumed>0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 5995] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 5995] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5996] <... mkdir resumed>) = 0 [pid 5836] close(4 [pid 5996] mount("/dev/loop3", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 5836] <... close resumed>) = 0 [pid 5995] <... futex resumed>) = 1 [pid 5993] <... futex resumed>) = 0 [pid 5995] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5993] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5995] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5993] <... futex resumed>) = 0 [pid 5995] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 5993] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5995] <... openat resumed>) = 4 [pid 5836] rmdir("./7/file2" [pid 5995] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5993] <... futex resumed>) = 0 [pid 5995] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5993] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5995] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5993] <... futex resumed>) = 0 [pid 5995] read(-1, [pid 5993] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5995] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 5995] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5993] <... futex resumed>) = 0 [pid 5995] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5993] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5995] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5993] <... futex resumed>) = 0 [pid 5995] memfd_create("syzkaller", 0 [pid 5993] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5995] <... memfd_create resumed>) = 5 [pid 5995] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 [pid 5995] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5836] <... rmdir resumed>) = 0 [pid 5998] <... openat resumed>) = 4 [pid 5836] getdents64(3, [pid 5995] munmap(0x7f0d62800000, 138412032) = 0 [pid 5995] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5995] close(5) = 0 [pid 5836] <... getdents64 resumed>0x55555fa3d730 /* 0 entries */, 32768) = 0 [ 97.618292][ T5991] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 97.633315][ T5996] NILFS (loop3): broken superblock, retrying with spare superblock (blocksize = 1024) [ 97.647367][ T5991] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 97.655847][ T5838] udevd[5838]: incorrect nilfs2 checksum on /dev/loop3 [pid 5995] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5998] ioctl(4, LOOP_SET_FD, 3 [pid 5836] close(3 [pid 5995] <... futex resumed>) = 1 [pid 5993] <... futex resumed>) = 0 [pid 5836] <... close resumed>) = 0 [pid 5995] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5993] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5995] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5993] <... futex resumed>) = 0 [pid 5995] fsync(-1 [pid 5993] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5995] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 5995] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5993] <... futex resumed>) = 0 [pid 5995] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5993] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5995] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5993] <... futex resumed>) = 0 [pid 5995] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5993] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5836] rmdir("./7" [pid 5995] <... openat resumed>) = 5 [pid 5836] <... rmdir resumed>) = 0 [pid 5995] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5836] mkdir("./8", 0777 [pid 5995] <... futex resumed>) = 1 [pid 5993] <... futex resumed>) = 0 [pid 5836] <... mkdir resumed>) = 0 [pid 5995] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5993] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5995] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5993] <... futex resumed>) = 0 [pid 5995] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 5993] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5836] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5998] <... ioctl resumed>) = 0 [pid 5996] <... mount resumed>) = 0 [pid 5836] <... openat resumed>) = 3 [pid 5996] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY) = 3 [pid 5996] chdir("./file2") = 0 [pid 5996] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [ 97.668573][ T5998] loop1: detected capacity change from 0 to 2048 [ 97.672384][ T5991] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 97.695657][ T6000] NILFS (loop3): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 97.700644][ T5999] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5996] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5998] close(3 [pid 5995] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 5994] <... futex resumed>) = 0 [pid 5836] ioctl(3, LOOP_CLR_FD [pid 5998] <... close resumed>) = 0 [pid 5995] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5836] <... ioctl resumed>) = 0 [pid 5998] close(4 [pid 5995] <... futex resumed>) = 1 [pid 5836] close(3 [pid 5998] <... close resumed>) = 0 [pid 5996] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5994] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5993] <... futex resumed>) = 0 [pid 5836] <... close resumed>) = 0 [pid 5996] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5994] <... futex resumed>) = 0 [pid 5993] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5836] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5998] mkdir("./file2", 0777 [pid 5996] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 5994] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5993] <... futex resumed>) = 0 [pid 5998] <... mkdir resumed>) = 0 [pid 5995] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 5998] mount("/dev/loop1", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 5995] <... openat resumed>) = 6 ./strace-static-x86_64: Process 6001 attached [pid 5996] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 5995] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [ 97.711531][ T5991] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 97.728876][ T5833] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 97.740232][ T5833] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 97.757613][ T5833] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5993] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6001] set_robust_list(0x55555fa3c6a0, 24 [pid 5996] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5995] <... futex resumed>) = 0 [pid 5993] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5836] <... clone resumed>, child_tidptr=0x55555fa3c690) = 21 [pid 5995] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5996] <... futex resumed>) = 1 [pid 5993] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5996] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5995] <... futex resumed>) = 0 [pid 5994] <... futex resumed>) = 0 [pid 5993] <... futex resumed>) = 1 [pid 6001] <... set_robust_list resumed>) = 0 [pid 5994] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5993] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5996] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5994] <... futex resumed>) = 0 [pid 6001] chdir("./8" [pid 5996] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 5995] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 5994] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6001] <... chdir resumed>) = 0 [pid 5996] <... openat resumed>) = 4 [pid 6001] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5996] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6001] <... prctl resumed>) = 0 [pid 6001] setpgid(0, 0 [pid 5996] <... futex resumed>) = 1 [pid 6001] <... setpgid resumed>) = 0 [pid 5994] <... futex resumed>) = 0 [ 97.771580][ T5833] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 97.784728][ T5998] NILFS (loop1): broken superblock, retrying with spare superblock (blocksize = 1024) [ 97.802089][ T5833] NILFS (loop0): disposed unprocessed dirty file(s) when stopping log writer [pid 6001] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5996] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5994] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6001] <... symlink resumed>) = 0 [pid 5996] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5994] <... futex resumed>) = 0 [pid 6001] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5996] read(-1, [pid 5994] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6001] <... symlink resumed>) = 0 [pid 5996] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 6001] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5996] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6001] <... symlink resumed>) = 0 [pid 5996] <... futex resumed>) = 1 [pid 5994] <... futex resumed>) = 0 [pid 6001] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5996] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5994] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5998] <... mount resumed>) = 0 [pid 5998] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 6001] <... openat resumed>) = 3 [pid 5998] <... openat resumed>) = 3 [pid 5996] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5994] <... futex resumed>) = 0 [pid 6001] write(3, "1000", 4 [pid 5998] chdir("./file2" [pid 6001] <... write resumed>) = 4 [pid 5996] memfd_create("syzkaller", 0 [pid 5994] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6001] close(3 [pid 5998] <... chdir resumed>) = 0 [pid 5996] <... memfd_create resumed>) = 5 [pid 5998] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6001] <... close resumed>) = 0 [pid 5996] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5998] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6001] symlink("/dev/binderfs", "./binderfs" [pid 5998] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5996] <... mmap resumed>) = 0x7f0d62800000 [pid 5998] <... futex resumed>) = 1 [pid 5996] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 executing program [pid 6001] <... symlink resumed>) = 0 [pid 5998] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5993] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6001] write(1, "executing program\n", 18) = 18 [pid 6001] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5996] <... write resumed>) = 524288 [pid 6001] <... futex resumed>) = 0 [pid 5996] munmap(0x7f0d62800000, 138412032 [pid 6001] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, NULL, 8) = 0 [pid 6001] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6001] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5996] <... munmap resumed>) = 0 [pid 6001] <... mmap resumed>) = 0x7f0d6adff000 [pid 5996] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6001] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE [pid 5997] <... futex resumed>) = 0 [pid 6001] <... mprotect resumed>) = 0 [pid 5997] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5996] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6001] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5998] <... futex resumed>) = 0 [pid 5997] <... futex resumed>) = 1 [pid 5996] close(5 [pid 6001] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5998] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 5997] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5998] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 5998] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5997] <... futex resumed>) = 0 [pid 6001] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0} [pid 5998] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5997] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5998] <... futex resumed>) = 0 [pid 5997] <... futex resumed>) = 1 ./strace-static-x86_64: Process 6003 attached [pid 5998] openat(AT_FDCWD, "/dev/cuse", O_RDWR) = 4 [pid 5997] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5998] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5996] <... close resumed>) = 0 [pid 6003] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 6001] <... clone3 resumed> => {parent_tid=[22]}, 88) = 22 [pid 5998] <... futex resumed>) = 0 [pid 6003] <... rseq resumed>) = 0 [pid 6001] rt_sigprocmask(SIG_SETMASK, [], [pid 5996] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5998] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6003] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 6001] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5996] <... futex resumed>) = 1 [pid 6003] <... set_robust_list resumed>) = 0 [pid 6001] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5997] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5996] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5994] <... futex resumed>) = 0 [pid 6003] rt_sigprocmask(SIG_SETMASK, [], [pid 6001] <... futex resumed>) = 0 [pid 5997] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5994] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6003] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6001] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5998] <... futex resumed>) = 0 [pid 5997] <... futex resumed>) = 1 [pid 5996] <... futex resumed>) = 0 [pid 5994] <... futex resumed>) = 1 [pid 6003] memfd_create("syzkaller", 0 [pid 5998] read(-1, [pid 5997] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5996] fsync(-1 [pid 5994] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6003] <... memfd_create resumed>) = 3 [pid 5998] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 5996] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 6003] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5998] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5996] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5998] <... futex resumed>) = 1 [pid 5997] <... futex resumed>) = 0 [pid 5996] <... futex resumed>) = 1 [pid 6003] <... mmap resumed>) = 0x7f0d62800000 [pid 5998] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5997] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5996] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5994] <... futex resumed>) = 0 [pid 5998] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5997] <... futex resumed>) = 0 [pid 5997] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [ 97.819742][ T6002] NILFS (loop1): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 5998] memfd_create("syzkaller", 0) = 5 [pid 5998] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 [pid 5994] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5996] <... futex resumed>) = 0 [pid 5994] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5996] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5998] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5996] <... openat resumed>) = 5 [pid 5996] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5994] <... futex resumed>) = 0 [pid 5996] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 5994] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5996] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 5994] <... futex resumed>) = 0 [pid 6003] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5833] <... umount2 resumed>) = 0 [pid 5994] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5833] umount2("./8/file2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./8/file2", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] umount2("./8/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6003] <... write resumed>) = 1048576 [pid 6003] munmap(0x7f0d62800000, 138412032 [pid 5998] <... write resumed>) = 524288 [pid 5996] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5998] munmap(0x7f0d62800000, 138412032 [pid 5996] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5833] openat(AT_FDCWD, "./8/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5996] <... futex resumed>) = 1 [pid 5994] <... futex resumed>) = 0 [pid 5833] <... openat resumed>) = 4 [pid 5998] <... munmap resumed>) = 0 [pid 5833] newfstatat(4, "", [pid 5998] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5996] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5994] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5833] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 5996] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5994] <... futex resumed>) = 0 [pid 5833] getdents64(4, [pid 5998] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5996] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 5833] <... getdents64 resumed>0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 5998] close(5 [pid 5994] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5833] getdents64(4, 0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 5998] <... close resumed>) = 0 [pid 5996] <... openat resumed>) = 6 [pid 5833] close(4 [pid 6003] <... munmap resumed>) = 0 [pid 5998] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5996] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6003] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5998] <... futex resumed>) = 1 [pid 5996] <... futex resumed>) = 1 [pid 5994] <... futex resumed>) = 0 [pid 5833] <... close resumed>) = 0 [pid 5998] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5996] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5994] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5833] rmdir("./8/file2" [pid 6003] <... openat resumed>) = 4 [pid 5996] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5994] <... futex resumed>) = 0 [pid 6003] ioctl(4, LOOP_SET_FD, 3 [pid 5996] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 5994] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5833] <... rmdir resumed>) = 0 [pid 5997] <... futex resumed>) = 0 [pid 5997] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5997] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5833] getdents64(3, 0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 5833] close(3 [pid 6003] <... ioctl resumed>) = 0 [pid 5998] <... futex resumed>) = 0 [pid 5833] <... close resumed>) = 0 [pid 6003] close(3 [pid 5998] fsync(-1 [pid 5833] rmdir("./8" [pid 6003] <... close resumed>) = 0 [pid 5998] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 6003] close(4 [pid 5998] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5833] <... rmdir resumed>) = 0 [pid 6003] <... close resumed>) = 0 [pid 5998] <... futex resumed>) = 1 [pid 5997] <... futex resumed>) = 0 [pid 5833] mkdir("./9", 0777 [pid 6003] mkdir("./file2", 0777 [pid 5998] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5997] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6003] <... mkdir resumed>) = 0 [pid 5998] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5833] <... mkdir resumed>) = 0 [pid 6003] mount("/dev/loop2", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 5998] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5833] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5998] <... openat resumed>) = 5 [pid 5997] <... futex resumed>) = 0 [pid 5998] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5833] <... openat resumed>) = 3 [pid 5998] <... futex resumed>) = 0 [pid 5998] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5997] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [ 97.918296][ T6000] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 97.952123][ T6003] loop2: detected capacity change from 0 to 2048 [pid 5997] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5998] <... futex resumed>) = 0 [pid 5997] <... futex resumed>) = 1 [pid 5833] ioctl(3, LOOP_CLR_FD [pid 5997] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5998] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 5833] <... ioctl resumed>) = 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 6004 attached [pid 5994] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6004] set_robust_list(0x55555fa3c6a0, 24 [pid 5833] <... clone resumed>, child_tidptr=0x55555fa3c690) = 27 [pid 6004] <... set_robust_list resumed>) = 0 [pid 6004] chdir("./9") = 0 [ 97.993012][ T6003] NILFS (loop2): broken superblock, retrying with spare superblock (blocksize = 1024) [pid 5997] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5997] futex(0x7f0d6aef46dc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5997] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0d6adde000 [pid 6004] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5997] mprotect(0x7f0d6addf000, 131072, PROT_READ|PROT_WRITE [pid 6004] <... prctl resumed>) = 0 [pid 6004] setpgid(0, 0 [pid 5997] <... mprotect resumed>) = 0 [pid 5997] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6004] <... setpgid resumed>) = 0 [pid 5997] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6004] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 5997] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6adfe990, parent_tid=0x7f0d6adfe990, exit_signal=0, stack=0x7f0d6adde000, stack_size=0x20300, tls=0x7f0d6adfe6c0} [pid 6004] <... symlink resumed>) = 0 [pid 6004] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu"./strace-static-x86_64: Process 6006 attached ) = 0 [pid 5997] <... clone3 resumed> => {parent_tid=[27]}, 88) = 27 [pid 6004] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 6006] rseq(0x7f0d6adfefe0, 0x20, 0, 0x53053053 [pid 6004] <... symlink resumed>) = 0 [pid 5997] rt_sigprocmask(SIG_SETMASK, [], [pid 5998] <... write resumed>) = -1 ENOENT (No such file or directory) [ 98.046369][ T6002] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 98.063387][ T5838] udevd[5838]: incorrect nilfs2 checksum on /dev/loop2 [ 98.076600][ T6005] NILFS (loop2): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6004] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5998] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6006] <... rseq resumed>) = 0 [pid 6004] write(3, "1000", 4 [pid 6003] <... mount resumed>) = 0 [pid 5998] <... futex resumed>) = 0 [pid 5997] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5995] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 6006] set_robust_list(0x7f0d6adfe9a0, 24 [pid 6004] <... write resumed>) = 4 [pid 6003] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5998] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5997] futex(0x7f0d6aef46d8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5995] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5993] close(3 [pid 6006] <... set_robust_list resumed>) = 0 [pid 6004] close(3 [pid 6003] <... openat resumed>) = 3 [pid 5997] <... futex resumed>) = 0 [pid 5995] <... futex resumed>) = 0 [pid 5993] <... close resumed>) = 0 [pid 6006] rt_sigprocmask(SIG_SETMASK, [], [pid 6004] <... close resumed>) = 0 [pid 6003] chdir("./file2" [pid 5997] futex(0x7f0d6aef46dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5995] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5993] close(4 [pid 6006] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6004] symlink("/dev/binderfs", "./binderfs" [pid 6003] <... chdir resumed>) = 0 [pid 5993] <... close resumed>) = 0 [pid 6006] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 6004] <... symlink resumed>) = 0 [pid 6003] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5993] close(5 [pid 6004] write(1, "executing program\n", 18 [pid 6003] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5993] <... close resumed>) = 0 executing program [pid 5993] close(6 [pid 6006] <... openat resumed>) = 6 [pid 6004] <... write resumed>) = 18 [pid 6003] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5996] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 6006] futex(0x7f0d6aef46dc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6004] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5993] <... close resumed>) = 0 [pid 6004] <... futex resumed>) = 0 [pid 6004] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, NULL, 8) = 0 [pid 6004] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 6006] <... futex resumed>) = 1 [pid 6003] <... futex resumed>) = 1 [pid 6001] <... futex resumed>) = 0 [pid 5997] <... futex resumed>) = 0 [pid 5996] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6004] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5993] close(7 [pid 6006] futex(0x7f0d6aef46d8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6004] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6003] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6001] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5997] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5996] <... futex resumed>) = 0 [pid 5994] close(3 [pid 5993] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6004] <... mmap resumed>) = 0x7f0d6adff000 [pid 6003] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6001] <... futex resumed>) = 0 [pid 5998] <... futex resumed>) = 0 [pid 5997] <... futex resumed>) = 1 [pid 5996] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5994] <... close resumed>) = 0 [pid 5993] close(8 [pid 6004] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE [pid 6003] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 6001] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5998] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 5997] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5994] close(4 [pid 5993] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6004] <... mprotect resumed>) = 0 [pid 6003] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 5994] <... close resumed>) = 0 [pid 5993] close(9 [pid 6004] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6003] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5993] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6003] <... futex resumed>) = 1 [pid 6001] <... futex resumed>) = 0 [pid 5994] close(5 [pid 5993] close(10 [pid 6004] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6003] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6001] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5994] <... close resumed>) = 0 [pid 5993] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6004] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0} [pid 6003] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6001] <... futex resumed>) = 0 [pid 5994] close(6 [pid 5993] close(11 [pid 6003] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 6001] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5994] <... close resumed>) = 0 [pid 5993] <... close resumed>) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 6007 attached [pid 6004] <... clone3 resumed> => {parent_tid=[28]}, 88) = 28 [pid 6003] <... openat resumed>) = 4 [pid 5994] close(7 [pid 5993] close(12 [pid 6007] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 6004] rt_sigprocmask(SIG_SETMASK, [], [pid 6003] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5994] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5993] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6007] <... rseq resumed>) = 0 [pid 6004] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6003] <... futex resumed>) = 1 [pid 6001] <... futex resumed>) = 0 [pid 5994] close(8 [pid 5993] close(13 [pid 6007] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 6004] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6003] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6001] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5994] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5993] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6007] <... set_robust_list resumed>) = 0 [pid 6004] <... futex resumed>) = 0 [pid 6003] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6001] <... futex resumed>) = 0 [pid 5994] close(9 [ 98.120041][ T5999] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 98.151534][ T6000] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5993] close(14 [pid 6007] rt_sigprocmask(SIG_SETMASK, [], [pid 6004] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6003] read(-1, [pid 6001] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5994] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5993] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6007] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6003] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 5994] close(10 [pid 5993] close(15 [pid 6007] memfd_create("syzkaller", 0 [pid 6003] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5994] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5993] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6007] <... memfd_create resumed>) = 3 [pid 6003] <... futex resumed>) = 1 [pid 6001] <... futex resumed>) = 0 [pid 5994] close(11 [pid 5993] close(16 [pid 6007] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6003] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5994] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5993] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6007] <... mmap resumed>) = 0x7f0d62800000 [pid 6003] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6001] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5994] close(12 [pid 5993] close(17 [pid 5994] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5993] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5994] close(13 [pid 5993] close(18 [pid 5994] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5993] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5994] close(14 [pid 5993] close(19 [pid 5994] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5993] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5994] close(15 [pid 6003] memfd_create("syzkaller", 0 [pid 6001] <... futex resumed>) = 0 [pid 5993] close(20 [pid 6003] <... memfd_create resumed>) = 5 [pid 5994] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6001] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5993] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6003] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5994] close(16 [pid 5993] close(21 [pid 5994] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5993] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5994] close(17 [pid 6003] <... mmap resumed>) = 0x7f0d62800000 [pid 5993] close(22 [pid 5994] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5993] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5994] close(18 [pid 5993] close(23 [pid 5994] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5993] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5994] close(19 [pid 5993] close(24 [pid 5994] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5993] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5994] close(20 [pid 5993] close(25 [pid 5994] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5993] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5994] close(21 [pid 5993] close(26 [pid 5994] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5993] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5994] close(22 [pid 5993] close(27 [pid 5994] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5993] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5994] close(23 [pid 5993] close(28 [pid 5994] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5993] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5994] close(24 [pid 5993] close(29 [pid 5994] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5993] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6003] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5994] close(25 [pid 5993] exit_group(0 [pid 5994] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5993] <... exit_group resumed>) = ? [pid 5995] <... futex resumed>) = ? [pid 5994] close(26) = -1 EBADF (Bad file descriptor) [pid 5994] close(27) = -1 EBADF (Bad file descriptor) [pid 5994] close(28) = -1 EBADF (Bad file descriptor) [pid 5994] close(29) = -1 EBADF (Bad file descriptor) [pid 5994] exit_group(0) = ? [pid 6007] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6003] <... write resumed>) = 524288 [pid 5996] <... futex resumed>) = ? [pid 5995] +++ exited with 0 +++ [pid 5993] +++ exited with 0 +++ [pid 5997] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5996] +++ exited with 0 +++ [pid 5994] +++ exited with 0 +++ [pid 5837] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=20 /* 0.20 s */} --- [pid 5837] umount2("./8", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5837] openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5837] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 5837] getdents64(3, 0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 5837] umount2("./8/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5837] newfstatat(AT_FDCWD, "./8/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5837] unlink("./8/cgroup" [pid 6003] munmap(0x7f0d62800000, 138412032 [pid 6007] <... write resumed>) = 1048576 [pid 6003] <... munmap resumed>) = 0 [pid 5837] <... unlink resumed>) = 0 [pid 5837] umount2("./8/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5835] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 6007] munmap(0x7f0d62800000, 138412032 [pid 5835] umount2("./8", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5837] newfstatat(AT_FDCWD, "./8/cgroup.cpu", [pid 6007] <... munmap resumed>) = 0 [pid 6003] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5837] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6007] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6003] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5837] unlink("./8/cgroup.cpu" [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6007] <... openat resumed>) = 4 [pid 6003] close(5 [pid 5837] <... unlink resumed>) = 0 [pid 5835] openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6007] ioctl(4, LOOP_SET_FD, 3 [pid 6003] <... close resumed>) = 0 [pid 5837] umount2("./8/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5835] <... openat resumed>) = 3 [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5837] newfstatat(AT_FDCWD, "./8/cgroup.net", [pid 6007] <... ioctl resumed>) = 0 [pid 6003] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5835] newfstatat(3, "", [pid 6007] close(3 [pid 5835] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 6007] <... close resumed>) = 0 [pid 5835] getdents64(3, [pid 6007] close(4 [pid 5835] <... getdents64 resumed>0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 6007] <... close resumed>) = 0 [pid 5837] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6003] <... futex resumed>) = 1 [pid 6001] <... futex resumed>) = 0 [pid 5837] unlink("./8/cgroup.net" [pid 6003] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6001] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] <... unlink resumed>) = 0 [pid 6003] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6001] <... futex resumed>) = 0 [pid 6003] fsync(-1 [pid 6001] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5837] umount2("./8/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6003] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6003] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] newfstatat(AT_FDCWD, "./8/binderfs", [pid 6003] <... futex resumed>) = 1 [pid 6001] <... futex resumed>) = 0 [pid 5837] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6003] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6001] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] unlink("./8/binderfs" [pid 6003] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6001] <... futex resumed>) = 0 [pid 5837] <... unlink resumed>) = 0 [pid 6003] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6001] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5837] umount2("./8/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6007] mkdir("./file2", 0777 [pid 6003] <... openat resumed>) = 5 [pid 5835] umount2("./8/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6003] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6001] <... futex resumed>) = 0 [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6007] <... mkdir resumed>) = 0 [pid 5835] newfstatat(AT_FDCWD, "./8/cgroup", [pid 6007] mount("/dev/loop0", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 6003] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6001] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5835] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6003] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6001] <... futex resumed>) = 0 [pid 5835] unlink("./8/cgroup" [pid 6003] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 6001] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5835] <... unlink resumed>) = 0 [ 98.255676][ T6007] loop0: detected capacity change from 0 to 2048 [ 98.281437][ T5999] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5835] umount2("./8/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5835] newfstatat(AT_FDCWD, "./8/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5835] unlink("./8/cgroup.cpu") = 0 [ 98.300210][ T6007] NILFS (loop0): broken superblock, retrying with spare superblock (blocksize = 1024) [ 98.303245][ T5999] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 98.318149][ T5838] udevd[5838]: incorrect nilfs2 checksum on /dev/loop0 [ 98.328776][ T5999] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5835] umount2("./8/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 6001] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5835] newfstatat(AT_FDCWD, "./8/cgroup.net", [pid 6001] futex(0x7f0d6aef46dc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5835] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5835] unlink("./8/cgroup.net" [pid 6001] <... futex resumed>) = 0 [pid 5835] <... unlink resumed>) = 0 [pid 6007] <... mount resumed>) = 0 [pid 6001] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5835] umount2("./8/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6007] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 6001] <... mmap resumed>) = 0x7f0d6adde000 [pid 6001] mprotect(0x7f0d6addf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6001] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6001] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6adfe990, parent_tid=0x7f0d6adfe990, exit_signal=0, stack=0x7f0d6adde000, stack_size=0x20300, tls=0x7f0d6adfe6c0}./strace-static-x86_64: Process 6009 attached [pid 6009] rseq(0x7f0d6adfefe0, 0x20, 0, 0x53053053 [pid 6001] <... clone3 resumed> => {parent_tid=[23]}, 88) = 23 [pid 6009] <... rseq resumed>) = 0 [pid 6001] rt_sigprocmask(SIG_SETMASK, [], [pid 6009] set_robust_list(0x7f0d6adfe9a0, 24 [pid 6001] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6009] <... set_robust_list resumed>) = 0 [pid 6001] futex(0x7f0d6aef46d8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6009] rt_sigprocmask(SIG_SETMASK, [], [pid 6001] <... futex resumed>) = 0 [pid 6009] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6001] futex(0x7f0d6aef46dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6009] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5835] newfstatat(AT_FDCWD, "./8/binderfs", [pid 6003] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 6003] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5835] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6007] <... openat resumed>) = 3 [pid 6003] <... futex resumed>) = 0 [pid 5835] unlink("./8/binderfs" [pid 6009] <... openat resumed>) = 6 [pid 6007] chdir("./file2" [pid 6003] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5835] <... unlink resumed>) = 0 [pid 6009] futex(0x7f0d6aef46dc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5835] umount2("./8/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6009] <... futex resumed>) = 1 [pid 6001] <... futex resumed>) = 0 [pid 6009] futex(0x7f0d6aef46d8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6001] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6003] <... futex resumed>) = 0 [pid 6001] <... futex resumed>) = 1 [pid 6001] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [ 98.350160][ T6005] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 98.365670][ T6008] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 98.384559][ T5999] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6003] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 6007] <... chdir resumed>) = 0 [pid 6007] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6001] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6007] <... openat resumed>) = -1 EBUSY (Device or resource busy) [ 98.398822][ T5999] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 98.400655][ T6000] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 98.413294][ T5999] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 98.437899][ T6000] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6007] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6004] <... futex resumed>) = 0 [pid 6007] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6004] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6007] <... futex resumed>) = 0 [pid 6004] <... futex resumed>) = 1 [pid 6007] ioctl(-1, BTRFS_IOC_RM_DEV, NULL) = -1 EBADF (Bad file descriptor) [pid 6004] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6007] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6004] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6007] <... futex resumed>) = 0 [pid 6004] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6007] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 6004] <... futex resumed>) = 0 [pid 6004] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6007] <... openat resumed>) = 4 [pid 6007] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6004] <... futex resumed>) = 0 [pid 6007] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6004] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6007] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6004] <... futex resumed>) = 0 [pid 6007] read(-1, [ 98.440101][ T5999] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 98.466258][ T6000] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 98.467332][ T5999] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 98.492525][ T5999] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6004] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6007] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [ 98.504423][ T6000] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 98.507355][ T5999] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 98.527974][ T6002] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 98.529774][ T6000] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6007] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5998] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 6007] <... futex resumed>) = 1 [pid 6004] <... futex resumed>) = 0 [pid 5998] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5997] close(3) = 0 [pid 5997] close(4) = 0 [pid 5997] close(5) = 0 [pid 5997] close(6) = 0 [pid 5997] close(7) = -1 EBADF (Bad file descriptor) [pid 5997] close(8) = -1 EBADF (Bad file descriptor) [pid 5997] close(9) = -1 EBADF (Bad file descriptor) [pid 5997] close(10) = -1 EBADF (Bad file descriptor) [pid 5997] close(11) = -1 EBADF (Bad file descriptor) [pid 5998] <... futex resumed>) = 0 [pid 5997] close(12 [pid 6007] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6004] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5998] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5997] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6007] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6004] <... futex resumed>) = 0 [pid 6007] memfd_create("syzkaller", 0 [pid 6004] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5997] close(13 [pid 6007] <... memfd_create resumed>) = 5 [pid 5997] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6007] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5997] close(14 [pid 6007] <... mmap resumed>) = 0x7f0d62800000 [pid 5997] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5997] close(15) = -1 EBADF (Bad file descriptor) [pid 5997] close(16) = -1 EBADF (Bad file descriptor) [pid 5997] close(17) = -1 EBADF (Bad file descriptor) [pid 5997] close(18) = -1 EBADF (Bad file descriptor) [pid 5997] close(19) = -1 EBADF (Bad file descriptor) [pid 5997] close(20) = -1 EBADF (Bad file descriptor) [pid 5997] close(21) = -1 EBADF (Bad file descriptor) [pid 5997] close(22) = -1 EBADF (Bad file descriptor) [pid 5997] close(23) = -1 EBADF (Bad file descriptor) [pid 5997] close(24 [pid 6007] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5997] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5997] close(25) = -1 EBADF (Bad file descriptor) [pid 5997] close(26) = -1 EBADF (Bad file descriptor) [pid 5997] close(27) = -1 EBADF (Bad file descriptor) [pid 5997] close(28) = -1 EBADF (Bad file descriptor) [pid 5997] close(29) = -1 EBADF (Bad file descriptor) [pid 5997] exit_group(0 [pid 6006] <... futex resumed>) = ? [pid 5998] <... futex resumed>) = ? [pid 5997] <... exit_group resumed>) = ? [pid 6006] +++ exited with 0 +++ [ 98.541616][ T5999] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 98.559739][ T6000] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 98.563822][ T5999] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 98.579746][ T6000] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6007] <... write resumed>) = 524288 [pid 5998] +++ exited with 0 +++ [pid 5997] +++ exited with 0 +++ [pid 6007] munmap(0x7f0d62800000, 138412032 [pid 5834] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=25, si_uid=0, si_status=0, si_utime=0, si_stime=26 /* 0.26 s */} --- [pid 6007] <... munmap resumed>) = 0 [pid 5834] umount2("./9", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6007] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5834] openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5834] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 5834] getdents64(3, 0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 5834] umount2("./9/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5834] newfstatat(AT_FDCWD, "./9/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5834] unlink("./9/cgroup") = 0 [pid 5834] umount2("./9/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5834] newfstatat(AT_FDCWD, "./9/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5834] unlink("./9/cgroup.cpu") = 0 [pid 5834] umount2("./9/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6007] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6007] close(5 [pid 5834] newfstatat(AT_FDCWD, "./9/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5834] unlink("./9/cgroup.net") = 0 [pid 5834] umount2("./9/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 6007] <... close resumed>) = 0 [pid 5834] newfstatat(AT_FDCWD, "./9/binderfs", [pid 6007] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5834] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6007] <... futex resumed>) = 1 [pid 6004] <... futex resumed>) = 0 [pid 6007] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6004] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6007] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6004] <... futex resumed>) = 0 [pid 6007] fsync(-1 [pid 6004] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6007] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 6007] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5834] unlink("./9/binderfs" [pid 6007] <... futex resumed>) = 1 [pid 6004] <... futex resumed>) = 0 [pid 6007] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6004] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6007] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6004] <... futex resumed>) = 0 [pid 6007] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6004] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5834] <... unlink resumed>) = 0 [ 98.607042][ T5999] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 98.621189][ T6000] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 98.642203][ T6000] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5834] umount2("./9/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6007] <... openat resumed>) = 5 [ 98.645206][ T5999] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 98.664923][ T6000] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 98.668515][ T6002] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 98.688101][ T6000] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6007] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6004] <... futex resumed>) = 0 [pid 6007] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6004] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6007] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6004] <... futex resumed>) = 0 [pid 6007] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [ 98.691274][ T5999] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 98.710043][ T6000] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 98.711218][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 98.726127][ T6000] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 98.734156][ T6005] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6004] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6003] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [ 98.754778][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 98.754901][ T6002] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 98.768509][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 98.782632][ T6000] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6004] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6003] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6004] futex(0x7f0d6aef46dc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6003] <... futex resumed>) = 0 [pid 6003] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [ 98.791885][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 98.800943][ T6008] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 98.810632][ T5837] NILFS (loop4): disposed unprocessed dirty file(s) when stopping log writer [ 98.820626][ T6002] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 98.841532][ T6000] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6001] close(3 [pid 6007] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 6004] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6001] <... close resumed>) = 0 [pid 6007] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6004] <... mmap resumed>) = 0x7f0d6adde000 [pid 6001] close(4 [pid 6007] <... futex resumed>) = 0 [pid 6004] mprotect(0x7f0d6addf000, 131072, PROT_READ|PROT_WRITE [pid 6007] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6004] <... mprotect resumed>) = 0 [pid 6004] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6004] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6adfe990, parent_tid=0x7f0d6adfe990, exit_signal=0, stack=0x7f0d6adde000, stack_size=0x20300, tls=0x7f0d6adfe6c0} => {parent_tid=[29]}, 88) = 29 [pid 6004] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6004] futex(0x7f0d6aef46d8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6004] futex(0x7f0d6aef46dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 6010 attached [pid 6001] <... close resumed>) = 0 [ 98.841658][ T6002] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 98.853345][ T5835] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 98.864403][ T6002] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 98.874551][ T5835] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 98.897038][ T5835] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6010] rseq(0x7f0d6adfefe0, 0x20, 0, 0x53053053 [pid 6001] close(5 [pid 6010] <... rseq resumed>) = 0 [pid 6004] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6001] <... close resumed>) = 0 [pid 5837] <... umount2 resumed>) = 0 [pid 6010] set_robust_list(0x7f0d6adfe9a0, 24 [pid 6001] close(6 [pid 6010] <... set_robust_list resumed>) = 0 [pid 6001] <... close resumed>) = 0 [pid 6010] rt_sigprocmask(SIG_SETMASK, [], [pid 6001] close(7 [pid 6010] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6001] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6010] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 6001] close(8 [pid 6004] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] umount2("./8/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6007] <... futex resumed>) = 0 [pid 6004] <... futex resumed>) = 1 [pid 6001] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6010] <... openat resumed>) = 6 [pid 6007] pwritev2(-1, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 6004] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6001] close(9 [pid 5837] newfstatat(AT_FDCWD, "./8/file2", [pid 6010] futex(0x7f0d6aef46dc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6007] <... pwritev2 resumed>) = -1 EBADF (Bad file descriptor) [pid 6001] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5837] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6010] <... futex resumed>) = 0 [pid 6001] close(10 [pid 6010] futex(0x7f0d6aef46d8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6001] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6007] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6001] close(11 [pid 5837] umount2("./8/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6007] <... futex resumed>) = 1 [pid 6004] <... futex resumed>) = 0 [pid 6001] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6007] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6004] close(3 [pid 6001] close(12 [pid 5837] openat(AT_FDCWD, "./8/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6004] <... close resumed>) = 0 [pid 6001] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5837] <... openat resumed>) = 4 [pid 6004] close(4 [pid 6001] close(13 [pid 5837] newfstatat(4, "", [pid 6004] <... close resumed>) = 0 [pid 6001] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5837] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 6004] close(5 [pid 6001] close(14 [pid 5837] getdents64(4, [pid 6004] <... close resumed>) = 0 [pid 6001] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5837] <... getdents64 resumed>0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 6004] close(6 [pid 6001] close(15 [pid 5837] getdents64(4, [pid 6004] <... close resumed>) = 0 [pid 6001] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5837] <... getdents64 resumed>0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 6004] close(7 [pid 6001] close(16 [pid 5837] close(4 [pid 6004] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6001] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5837] <... close resumed>) = 0 [pid 6004] close(8 [pid 6001] close(17 [pid 5837] rmdir("./8/file2" [pid 6004] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6001] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5837] <... rmdir resumed>) = 0 [pid 6004] close(9 [pid 6001] close(18 [pid 5837] getdents64(3, [pid 6004] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6001] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5837] <... getdents64 resumed>0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 6004] close(10 [pid 6001] close(19 [pid 5837] close(3 [pid 6004] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6001] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5837] <... close resumed>) = 0 [pid 6004] close(11 [pid 6001] close(20 [pid 5837] rmdir("./8" [pid 6004] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6001] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5837] <... rmdir resumed>) = 0 [pid 6004] close(12 [pid 6001] close(21 [pid 5837] mkdir("./9", 0777 [pid 6004] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6001] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5837] <... mkdir resumed>) = 0 [pid 6004] close(13 [pid 6001] close(22 [pid 5837] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6004] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6001] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5837] <... openat resumed>) = 3 [pid 6004] close(14 [pid 6001] close(23 [pid 6004] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6001] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5837] ioctl(3, LOOP_CLR_FD [pid 6004] close(15 [pid 6001] close(24 [pid 6004] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6001] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5837] <... ioctl resumed>) = 0 [pid 6004] close(16 [ 98.905034][ T6002] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 98.909444][ T5835] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 98.920325][ T6002] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 98.930547][ T5835] NILFS (loop3): disposed unprocessed dirty file(s) when stopping log writer [pid 6001] close(25 [pid 5837] close(3executing program [pid 6004] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6001] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5837] <... close resumed>) = 0 [pid 6004] close(17 [pid 6001] close(26 [pid 6004] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5837] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6004] close(18./strace-static-x86_64: Process 6011 attached ) = -1 EBADF (Bad file descriptor) [pid 6001] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6011] set_robust_list(0x55555fa3c6a0, 24 [pid 6004] close(19 [pid 6001] close(27 [pid 5837] <... clone resumed>, child_tidptr=0x55555fa3c690) = 22 [pid 6001] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6011] <... set_robust_list resumed>) = 0 [pid 6004] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6011] chdir("./9" [pid 6004] close(20 [pid 6011] <... chdir resumed>) = 0 [pid 6004] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6011] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6004] close(21 [pid 6011] <... prctl resumed>) = 0 [pid 6004] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6011] setpgid(0, 0 [pid 6004] close(22 [pid 6011] <... setpgid resumed>) = 0 [pid 6004] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6011] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 6004] close(23 [pid 6001] close(28 [pid 6011] <... symlink resumed>) = 0 [pid 6004] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6011] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 6004] close(24 [pid 6011] <... symlink resumed>) = 0 [pid 6004] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6011] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 6004] close(25 [pid 6011] <... symlink resumed>) = 0 [pid 6004] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6011] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6004] close(26 [pid 6011] <... openat resumed>) = 3 [pid 6004] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6011] write(3, "1000", 4 [pid 6004] close(27 [pid 6011] <... write resumed>) = 4 [pid 6004] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6011] close(3 [pid 6004] close(28 [pid 6011] <... close resumed>) = 0 [pid 6004] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6011] symlink("/dev/binderfs", "./binderfs" [pid 6004] close(29 [pid 6011] <... symlink resumed>) = 0 [pid 6004] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6011] write(1, "executing program\n", 18 [pid 6004] exit_group(0 [pid 6011] <... write resumed>) = 18 [pid 6010] <... futex resumed>) = ? [pid 6007] <... futex resumed>) = ? [pid 6004] <... exit_group resumed>) = ? [pid 6001] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6011] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6007] +++ exited with 0 +++ [pid 6001] close(29 [pid 6011] <... futex resumed>) = 0 [pid 6011] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, NULL, 8) = 0 [pid 6011] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6011] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0d6adff000 [pid 6011] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6011] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6010] +++ exited with 0 +++ [pid 6004] +++ exited with 0 +++ [pid 6011] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0} [pid 6001] <... close resumed>) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 6012 attached [pid 6012] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 6011] <... clone3 resumed> => {parent_tid=[23]}, 88) = 23 [pid 6012] <... rseq resumed>) = 0 [pid 6011] rt_sigprocmask(SIG_SETMASK, [], [pid 6001] exit_group(0 [pid 5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=27, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=7 /* 0.07 s */} --- [pid 6012] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 6011] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6012] <... set_robust_list resumed>) = 0 [pid 6011] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6009] <... futex resumed>) = ? [pid 6003] <... futex resumed>) = ? [pid 6001] <... exit_group resumed>) = ? [pid 5833] restart_syscall(<... resuming interrupted clone ...> [pid 6012] rt_sigprocmask(SIG_SETMASK, [], [pid 6011] <... futex resumed>) = 0 [pid 5833] <... restart_syscall resumed>) = 0 [pid 6012] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6011] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6009] +++ exited with 0 +++ [pid 6012] memfd_create("syzkaller", 0) = 3 [pid 6012] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 [pid 6012] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6003] +++ exited with 0 +++ [pid 6001] +++ exited with 0 +++ [pid 5836] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 5833] umount2("./9", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5836] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5833] openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5836] umount2("./8", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5836] openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5836] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 5836] getdents64(3, 0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 5836] umount2("./8/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5836] newfstatat(AT_FDCWD, "./8/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] <... openat resumed>) = 3 [pid 5836] unlink("./8/cgroup" [pid 5833] newfstatat(3, "", [pid 5836] <... unlink resumed>) = 0 [pid 5836] umount2("./8/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5836] newfstatat(AT_FDCWD, "./8/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5836] unlink("./8/cgroup.cpu") = 0 [pid 5836] umount2("./8/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5836] newfstatat(AT_FDCWD, "./8/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5836] unlink("./8/cgroup.net") = 0 [pid 5836] umount2("./8/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5836] newfstatat(AT_FDCWD, "./8/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5836] unlink("./8/binderfs") = 0 [pid 5836] umount2("./8/file2", MNT_FORCE|UMOUNT_NOFOLLOW [ 98.995414][ T6002] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 99.024296][ T6002] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5833] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 5833] getdents64(3, 0x55555fa3d730 /* 7 entries */, 32768) = 208 [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] 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.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/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/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6012] <... write resumed>) = 1048576 [pid 6012] munmap(0x7f0d62800000, 138412032) = 0 [pid 6012] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [ 99.049950][ T6002] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 99.050242][ T6005] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 99.071986][ T6002] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 99.072304][ T6005] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 99.087961][ T6012] loop4: detected capacity change from 0 to 2048 [pid 6012] ioctl(4, LOOP_SET_FD, 3 [pid 5835] <... umount2 resumed>) = 0 [pid 6012] <... ioctl resumed>) = 0 [pid 5835] umount2("./8/file2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 99.100819][ T6008] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 99.102856][ T6005] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 99.113704][ T6002] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 99.135353][ T6005] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5835] newfstatat(AT_FDCWD, "./8/file2", [pid 6012] close(3) = 0 [pid 6012] close(4) = 0 [pid 6012] mkdir("./file2", 0777) = 0 [pid 6012] mount("/dev/loop4", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 5835] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [ 99.136277][ T6008] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 99.146335][ T6005] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 99.168282][ T6005] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 99.168639][ T6002] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 99.179585][ T6005] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5835] umount2("./8/file2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5835] openat(AT_FDCWD, "./8/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [ 99.189703][ T6012] NILFS (loop4): broken superblock, retrying with spare superblock (blocksize = 1024) [ 99.200449][ T6005] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 99.221587][ T6005] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 99.222830][ T6008] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5835] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 5835] getdents64(4, 0x55555fa45770 /* 2 entries */, 32768) = 48 [ 99.232994][ T6005] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 99.248471][ T6002] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 99.266439][ T6005] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 99.268947][ T6008] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 99.278730][ T6005] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5835] getdents64(4, [pid 6012] <... mount resumed>) = 0 [pid 6012] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY) = 3 [pid 6012] chdir("./file2") = 0 [pid 6012] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6012] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6012] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6011] <... futex resumed>) = 0 [pid 5835] <... getdents64 resumed>0x55555fa45770 /* 0 entries */, 32768) = 0 [ 99.298785][ T5838] udevd[5838]: incorrect nilfs2 checksum on /dev/loop4 [ 99.300481][ T6005] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 99.313838][ T6002] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 99.318906][ T6013] NILFS (loop4): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 99.337421][ T6008] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6011] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6012] <... futex resumed>) = 0 [pid 5835] close(4 [pid 6012] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 6011] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5835] <... close resumed>) = 0 [pid 6012] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 5835] rmdir("./8/file2" [pid 6012] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5835] <... rmdir resumed>) = 0 [pid 6012] <... futex resumed>) = 1 [pid 6011] <... futex resumed>) = 0 [pid 5835] getdents64(3, [pid 6012] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6011] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5835] <... getdents64 resumed>0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 6012] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6011] <... futex resumed>) = 0 [pid 5835] close(3 [pid 6012] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 6011] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5835] <... close resumed>) = 0 [pid 6012] <... openat resumed>) = 4 [pid 5835] rmdir("./8" [pid 6012] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5835] <... rmdir resumed>) = 0 [ 99.341208][ T6005] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 99.354813][ T6008] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 99.361915][ T6005] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 99.382973][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6012] <... futex resumed>) = 1 [pid 6011] <... futex resumed>) = 0 [pid 5835] mkdir("./9", 0777 [pid 6012] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6011] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5835] <... mkdir resumed>) = 0 [pid 6012] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6011] <... futex resumed>) = 0 [pid 5835] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6012] read(-1, [pid 6011] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5835] <... openat resumed>) = 3 [pid 6012] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 5835] ioctl(3, LOOP_CLR_FD [pid 6012] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5835] <... ioctl resumed>) = 0 [pid 6012] <... futex resumed>) = 1 [pid 6011] <... futex resumed>) = 0 [ 99.394152][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 99.406094][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 99.416987][ T5833] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 99.417428][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5835] close(3 [pid 6012] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6011] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5835] <... close resumed>) = 0 [ 99.439981][ T5833] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 99.443281][ T5834] NILFS (loop1): disposed unprocessed dirty file(s) when stopping log writer [ 99.453875][ T5833] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 99.474778][ T5833] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 99.486100][ T5833] NILFS (loop0): disposed unprocessed dirty file(s) when stopping log writer [pid 6012] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6011] <... futex resumed>) = 0 [pid 5835] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5834] <... umount2 resumed>) = 0 [pid 6012] memfd_create("syzkaller", 0 [pid 6011] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6012] <... memfd_create resumed>) = 5 [pid 6012] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 [pid 6012] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288./strace-static-x86_64: Process 6014 attached ) = 524288 [pid 5835] <... clone resumed>, child_tidptr=0x55555fa3c690) = 23 [pid 5834] umount2("./9/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6014] set_robust_list(0x55555fa3c6a0, 24 [pid 6012] munmap(0x7f0d62800000, 138412032 [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6014] <... set_robust_list resumed>) = 0 [pid 6012] <... munmap resumed>) = 0 [pid 5834] newfstatat(AT_FDCWD, "./9/file2", [pid 6014] chdir("./9" [pid 6012] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5834] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6014] <... chdir resumed>) = 0 [pid 6012] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5834] umount2("./9/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6014] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6012] close(5 [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6012] <... close resumed>) = 0 [pid 5834] openat(AT_FDCWD, "./9/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 6014] <... prctl resumed>) = 0 [pid 5834] newfstatat(4, "", [pid 6014] setpgid(0, 0 [pid 6012] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5834] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 6014] <... setpgid resumed>) = 0 [pid 6011] <... futex resumed>) = 0 [pid 6012] <... futex resumed>) = 1 [pid 5834] getdents64(4, [pid 6012] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6014] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 6011] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5836] <... umount2 resumed>) = 0 [pid 5834] <... getdents64 resumed>0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 5833] <... umount2 resumed>) = 0 [pid 6014] <... symlink resumed>) = 0 [pid 6012] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6011] <... futex resumed>) = 0 [pid 5836] umount2("./8/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5834] getdents64(4, [pid 5833] umount2("./9/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6014] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 6012] fsync(-1 [pid 6011] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5834] <... getdents64 resumed>0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6012] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] newfstatat(AT_FDCWD, "./8/file2", [pid 5834] close(4 [pid 5833] newfstatat(AT_FDCWD, "./9/file2", [pid 6014] <... symlink resumed>) = 0 [pid 6012] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5836] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5834] <... close resumed>) = 0 [pid 6014] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 6012] <... futex resumed>) = 1 [pid 6011] <... futex resumed>) = 0 [pid 5836] umount2("./8/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5834] rmdir("./9/file2" [pid 5833] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6014] <... symlink resumed>) = 0 [pid 6012] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6011] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5833] umount2("./9/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6014] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6012] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6011] <... futex resumed>) = 0 [pid 5836] openat(AT_FDCWD, "./8/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5834] <... rmdir resumed>) = 0 [pid 6014] <... openat resumed>) = 3 [pid 6012] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6011] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5836] <... openat resumed>) = 4 [pid 5834] getdents64(3, [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6014] write(3, "1000", 4 [pid 6012] <... openat resumed>) = 5 [pid 5836] newfstatat(4, "", [pid 5834] <... getdents64 resumed>0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 5833] openat(AT_FDCWD, "./9/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6014] <... write resumed>) = 4 [pid 6012] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5836] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 5834] close(3 [pid 6014] close(3 [pid 5836] getdents64(4, [pid 5834] <... close resumed>) = 0 [pid 5833] <... openat resumed>) = 4 [pid 6014] <... close resumed>) = 0 [ 99.496590][ T5836] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 99.508081][ T5836] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 99.519346][ T5836] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 99.530962][ T5836] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 99.541954][ T5836] NILFS (loop2): disposed unprocessed dirty file(s) when stopping log writer [pid 6012] <... futex resumed>) = 1 [pid 6011] <... futex resumed>) = 0 [pid 5836] <... getdents64 resumed>0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 5834] rmdir("./9" [pid 6014] symlink("/dev/binderfs", "./binderfs" [pid 6012] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6011] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5836] getdents64(4, [pid 5833] newfstatat(4, "", [pid 6014] <... symlink resumed>) = 0 [pid 6012] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6011] <... futex resumed>) = 0 [pid 5836] <... getdents64 resumed>0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 6014] write(1, "executing program\n", 18executing program [pid 5836] close(4 [pid 5834] <... rmdir resumed>) = 0 [pid 5833] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 6014] <... write resumed>) = 18 [pid 6012] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 6011] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5836] <... close resumed>) = 0 [pid 5834] mkdir("./10", 0777 [pid 5833] getdents64(4, [pid 6014] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5836] rmdir("./8/file2" [pid 6014] <... futex resumed>) = 0 [pid 5836] <... rmdir resumed>) = 0 [pid 5836] getdents64(3, 0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 5836] close(3) = 0 [pid 5836] rmdir("./8") = 0 [pid 5836] mkdir("./9", 0777) = 0 [pid 5836] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5836] ioctl(3, LOOP_CLR_FD) = 0 [pid 5836] close(3) = 0 [pid 5834] <... mkdir resumed>) = 0 [pid 5833] <... getdents64 resumed>0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 6014] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, [pid 6012] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 5836] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5834] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5833] getdents64(4, [pid 6014] <... rt_sigaction resumed>NULL, 8) = 0 ./strace-static-x86_64: Process 6015 attached [pid 6014] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 6012] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6015] set_robust_list(0x55555fa3c6a0, 24 [pid 6012] <... futex resumed>) = 1 [pid 6015] <... set_robust_list resumed>) = 0 [pid 6012] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5836] <... clone resumed>, child_tidptr=0x55555fa3c690) = 24 [pid 6015] chdir("./9") = 0 [pid 6015] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6015] setpgid(0, 0) = 0 [pid 6015] symlink("/syzcgroup/unified/syz2", "./cgroup") = 0 [pid 6015] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu") = 0 [pid 6015] symlink("/syzcgroup/net/syz2", "./cgroup.net") = 0 [pid 6015] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6011] <... futex resumed>) = 0 [pid 6014] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6015] write(3, "1000", 4 [pid 6014] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6011] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6015] <... write resumed>) = 4 [pid 6011] <... futex resumed>) = 1 [pid 6014] <... mmap resumed>) = 0x7f0d6adff000 [pid 5834] <... openat resumed>) = 3 [pid 5833] <... getdents64 resumed>0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 6014] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE [pid 6012] <... futex resumed>) = 0 [pid 6011] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5833] close(4 [pid 6014] <... mprotect resumed>) = 0 [pid 6012] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 6015] close(3 [pid 5834] ioctl(3, LOOP_CLR_FD [pid 6015] <... close resumed>) = 0 [pid 6014] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5834] <... ioctl resumed>) = 0 [pid 6015] symlink("/dev/binderfs", "./binderfs" [pid 5834] close(3 [pid 6015] <... symlink resumed>) = 0 [pid 6014] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5834] <... close resumed>) = 0 [pid 5833] <... close resumed>) = 0 [pid 6014] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0} [pid 5834] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6017 attached [pid 5833] rmdir("./9/file2" [pid 6014] <... clone3 resumed> => {parent_tid=[24]}, 88) = 24 ./strace-static-x86_64: Process 6016 attached [pid 6017] set_robust_list(0x55555fa3c6a0, 24 [pid 6014] rt_sigprocmask(SIG_SETMASK, [], [pid 6012] <... openat resumed>) = 6 [pid 6015] write(1, "executing program\n", 18 [pid 5834] <... clone resumed>, child_tidptr=0x55555fa3c690) = 28 [pid 5833] <... rmdir resumed>) = 0 executing program [pid 6015] <... write resumed>) = 18 [pid 6014] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5833] getdents64(3, [pid 6014] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5833] <... getdents64 resumed>0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 6014] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5833] close(3 [pid 6015] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5833] <... close resumed>) = 0 [pid 6017] <... set_robust_list resumed>) = 0 [pid 6016] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 6012] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5833] rmdir("./9" [pid 6017] chdir("./10" [pid 6016] <... rseq resumed>) = 0 [pid 6012] <... futex resumed>) = 1 [pid 6011] <... futex resumed>) = 0 [pid 5833] <... rmdir resumed>) = 0 [pid 6017] <... chdir resumed>) = 0 [pid 6016] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 6015] <... futex resumed>) = 0 [pid 6012] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 6011] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [ 99.605810][ T6013] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5833] mkdir("./10", 0777 [pid 6017] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6016] <... set_robust_list resumed>) = 0 [pid 6015] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, [pid 5833] <... mkdir resumed>) = 0 [pid 5833] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6015] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5833] <... openat resumed>) = 3 [pid 6015] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5833] ioctl(3, LOOP_CLR_FD [pid 6015] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5833] <... ioctl resumed>) = 0 [pid 6016] rt_sigprocmask(SIG_SETMASK, [], [pid 6015] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5833] close(3 [pid 6015] <... mmap resumed>) = 0x7f0d6adff000 [pid 5833] <... close resumed>) = 0 [pid 6015] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6015] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6017] <... prctl resumed>) = 0 [pid 6015] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6017] setpgid(0, 0 [pid 6015] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0} [pid 6017] <... setpgid resumed>) = 0 [pid 6017] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 6016] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6015] <... clone3 resumed> => {parent_tid=[25]}, 88) = 25 [pid 6015] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6015] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6017] <... symlink resumed>) = 0 [pid 6015] <... futex resumed>) = 0 [pid 6015] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6017] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu") = 0 [pid 6011] <... futex resumed>) = 0 [pid 6011] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 6018 attached [pid 6016] memfd_create("syzkaller", 0executing program [pid 6017] symlink("/syzcgroup/net/syz1", "./cgroup.net") = 0 [pid 6017] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6017] write(3, "1000", 4) = 4 [pid 6017] close(3) = 0 [pid 6017] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6017] write(1, "executing program\n", 18) = 18 [pid 6017] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6017] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, NULL, 8) = 0 [pid 6017] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6017] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0d6adff000 [pid 6017] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6017] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6017] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0}./strace-static-x86_64: Process 6019 attached [pid 6018] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 6017] <... clone3 resumed> => {parent_tid=[29]}, 88) = 29 [pid 6016] <... memfd_create resumed>) = 3 [pid 5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6018] <... rseq resumed>) = 0 [pid 6019] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 6017] rt_sigprocmask(SIG_SETMASK, [], [pid 6016] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6019] <... rseq resumed>) = 0 [pid 6017] <... rt_sigprocmask resumed>NULL, 8) = 0 ./strace-static-x86_64: Process 6020 attached [pid 6016] <... mmap resumed>) = 0x7f0d62800000 [pid 6018] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 6020] set_robust_list(0x55555fa3c6a0, 24 [pid 5833] <... clone resumed>, child_tidptr=0x55555fa3c690) = 30 [pid 6019] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 6017] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6020] <... set_robust_list resumed>) = 0 [pid 6019] <... set_robust_list resumed>) = 0 [pid 6018] <... set_robust_list resumed>) = 0 [pid 6017] <... futex resumed>) = 0 [pid 6016] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6020] chdir("./10" [pid 6018] rt_sigprocmask(SIG_SETMASK, [], [pid 6020] <... chdir resumed>) = 0 [pid 6018] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6020] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6019] rt_sigprocmask(SIG_SETMASK, [], [pid 6017] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6020] <... prctl resumed>) = 0 [pid 6018] memfd_create("syzkaller", 0 [pid 6020] setpgid(0, 0 [pid 6019] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6020] <... setpgid resumed>) = 0 [pid 6019] memfd_create("syzkaller", 0) = 3 [pid 6019] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6020] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 6019] <... mmap resumed>) = 0x7f0d62800000 [pid 6020] <... symlink resumed>) = 0 [pid 6019] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6018] <... memfd_create resumed>) = 3 [pid 6020] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 6018] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6020] <... symlink resumed>) = 0 [pid 6018] <... mmap resumed>) = 0x7f0d62800000 [pid 6020] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 6011] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6011] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0} [pid 6020] <... symlink resumed>) = 0 [pid 6018] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6016] <... write resumed>) = 1048576 [pid 6011] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6020] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6020] write(3, "1000", 4) = 4 [pid 6020] close(3) = 0 executing program [pid 6020] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6020] write(1, "executing program\n", 18) = 18 [pid 6020] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6020] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, NULL, 8) = 0 [pid 6020] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 6019] <... write resumed>) = 1048576 [pid 6020] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6016] munmap(0x7f0d62800000, 138412032 [pid 6020] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6016] <... munmap resumed>) = 0 [pid 6020] <... mmap resumed>) = 0x7f0d6adff000 [pid 6020] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE [pid 6016] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6020] <... mprotect resumed>) = 0 [pid 6016] <... openat resumed>) = 4 [pid 6016] ioctl(4, LOOP_SET_FD, 3 [pid 6019] munmap(0x7f0d62800000, 138412032 [pid 6020] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6019] <... munmap resumed>) = 0 [pid 6019] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 6019] ioctl(4, LOOP_SET_FD, 3 [pid 6020] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6018] <... write resumed>) = 1048576 [pid 6020] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0} [pid 6016] <... ioctl resumed>) = 0 ./strace-static-x86_64: Process 6021 attached [pid 6019] <... ioctl resumed>) = 0 [pid 6018] munmap(0x7f0d62800000, 138412032 [pid 6021] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 6020] <... clone3 resumed> => {parent_tid=[31]}, 88) = 31 [pid 6021] <... rseq resumed>) = 0 [pid 6020] rt_sigprocmask(SIG_SETMASK, [], [pid 6019] close(3 [pid 6018] <... munmap resumed>) = 0 [pid 6016] close(3 [pid 6021] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 6020] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6021] <... set_robust_list resumed>) = 0 [pid 6020] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6018] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 6021] rt_sigprocmask(SIG_SETMASK, [], [pid 6020] <... futex resumed>) = 0 [pid 6019] <... close resumed>) = 0 [pid 6018] <... openat resumed>) = 4 [pid 6016] <... close resumed>) = 0 [pid 6019] close(4 [pid 6016] close(4 [pid 6019] <... close resumed>) = 0 [pid 6016] <... close resumed>) = 0 [pid 6019] mkdir("./file2", 0777 [pid 6016] mkdir("./file2", 0777 [pid 6019] <... mkdir resumed>) = 0 [pid 6016] <... mkdir resumed>) = 0 [pid 6019] mount("/dev/loop1", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 6016] mount("/dev/loop3", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 6021] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6020] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [ 99.758646][ T6016] loop3: detected capacity change from 0 to 2048 [ 99.768497][ T6019] loop1: detected capacity change from 0 to 2048 [pid 6018] ioctl(4, LOOP_SET_FD, 3 [pid 6021] memfd_create("syzkaller", 0) = 3 [pid 6018] <... ioctl resumed>) = 0 [pid 6021] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 [pid 6018] close(3) = 0 [pid 6018] close(4) = 0 [pid 6018] mkdir("./file2", 0777) = 0 [ 99.814756][ T6018] loop2: detected capacity change from 0 to 2048 [ 99.830472][ T6019] NILFS (loop1): broken superblock, retrying with spare superblock (blocksize = 1024) [ 99.850996][ T5855] udevd[5855]: incorrect nilfs2 checksum on /dev/loop1 [pid 6018] mount("/dev/loop2", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [ 99.858689][ T6018] NILFS (loop2): broken superblock, retrying with spare superblock (blocksize = 1024) [ 99.861294][ T5838] udevd[5838]: incorrect nilfs2 checksum on /dev/loop3 [ 99.873633][ T6016] NILFS (loop3): broken superblock, retrying with spare superblock (blocksize = 1024) [ 99.897682][ T6022] NILFS (loop1): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6021] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576 [pid 6019] <... mount resumed>) = 0 [pid 6021] munmap(0x7f0d62800000, 138412032 [pid 6019] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY) = 3 [pid 6021] <... munmap resumed>) = 0 [pid 6019] chdir("./file2") = 0 [pid 6019] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6019] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6019] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6021] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6017] <... futex resumed>) = 0 [pid 6016] <... mount resumed>) = 0 [pid 6012] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 6012] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6011] close(3 [pid 6012] <... futex resumed>) = 0 [pid 6011] <... close resumed>) = 0 [pid 6012] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6011] close(4) = 0 [pid 6011] close(5) = 0 [pid 6011] close(6) = 0 [pid 6011] close(7) = -1 EBADF (Bad file descriptor) [pid 6011] close(8) = -1 EBADF (Bad file descriptor) [pid 6011] close(9) = -1 EBADF (Bad file descriptor) [pid 6011] close(10) = -1 EBADF (Bad file descriptor) [pid 6011] close(11) = -1 EBADF (Bad file descriptor) [pid 6011] close(12) = -1 EBADF (Bad file descriptor) [pid 6011] close(13) = -1 EBADF (Bad file descriptor) [pid 6011] close(14) = -1 EBADF (Bad file descriptor) [pid 6011] close(15) = -1 EBADF (Bad file descriptor) [pid 6011] close(16) = -1 EBADF (Bad file descriptor) [pid 6011] close(17) = -1 EBADF (Bad file descriptor) [pid 6011] close(18) = -1 EBADF (Bad file descriptor) [pid 6011] close(19) = -1 EBADF (Bad file descriptor) [pid 6011] close(20) = -1 EBADF (Bad file descriptor) [pid 6011] close(21) = -1 EBADF (Bad file descriptor) [pid 6011] close(22) = -1 EBADF (Bad file descriptor) [pid 6011] close(23 [pid 6021] <... openat resumed>) = 4 [pid 6011] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6021] ioctl(4, LOOP_SET_FD, 3 [pid 6011] close(24 [pid 6017] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6016] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 6011] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6017] <... futex resumed>) = 1 [pid 6016] <... openat resumed>) = 3 [pid 6017] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6016] chdir("./file2") = 0 [pid 6016] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6016] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6014] <... futex resumed>) = 0 [pid 6011] close(25 [pid 6021] <... ioctl resumed>) = 0 [pid 6019] <... futex resumed>) = 0 [pid 6018] <... mount resumed>) = 0 [pid 6016] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6014] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6011] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6021] close(3 [pid 6019] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 6018] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 6016] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6014] <... futex resumed>) = 0 [pid 6011] close(26 [pid 6021] <... close resumed>) = 0 [pid 6019] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 6018] <... openat resumed>) = 3 [pid 6016] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 6014] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6011] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6021] close(4 [pid 6019] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6018] chdir("./file2" [pid 6016] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 6011] close(27 [pid 6021] <... close resumed>) = 0 [pid 6019] <... futex resumed>) = 1 [pid 6018] <... chdir resumed>) = 0 [pid 6011] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6021] mkdir("./file2", 0777 [pid 6019] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6018] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 6011] close(28 [pid 6021] <... mkdir resumed>) = 0 [pid 6018] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6011] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6021] mount("/dev/loop0", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 6018] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6011] close(29) = -1 EBADF (Bad file descriptor) [pid 6011] exit_group(0 [pid 6012] <... futex resumed>) = ? [pid 6011] <... exit_group resumed>) = ? [pid 6012] +++ exited with 0 +++ [pid 6011] +++ exited with 0 +++ [pid 6018] <... futex resumed>) = 1 [pid 6016] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6018] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6017] <... futex resumed>) = 0 [pid 6015] <... futex resumed>) = 0 [pid 5837] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22, si_uid=0, si_status=0, si_utime=0, si_stime=22 /* 0.22 s */} --- [pid 5837] restart_syscall(<... resuming interrupted clone ...> [pid 6017] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6016] <... futex resumed>) = 1 [pid 6015] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6014] <... futex resumed>) = 0 [ 99.910331][ T6013] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 99.925077][ T5861] udevd[5861]: incorrect nilfs2 checksum on /dev/loop2 [ 99.926253][ T6023] NILFS (loop2): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 99.943050][ T6024] NILFS (loop3): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 99.953115][ T6021] loop0: detected capacity change from 0 to 2048 [pid 5837] <... restart_syscall resumed>) = 0 [pid 5837] umount2("./9", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5837] openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5837] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 5837] getdents64(3, 0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 5837] umount2("./9/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5837] newfstatat(AT_FDCWD, "./9/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5837] unlink("./9/cgroup") = 0 [pid 5837] umount2("./9/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5837] newfstatat(AT_FDCWD, "./9/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5837] unlink("./9/cgroup.cpu" [pid 6019] <... futex resumed>) = 0 [pid 6018] <... futex resumed>) = 0 [pid 6017] <... futex resumed>) = 1 [pid 6016] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6015] <... futex resumed>) = 1 [pid 6014] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] <... unlink resumed>) = 0 [pid 6019] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 6018] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 6017] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6016] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6015] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5837] umount2("./9/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6019] <... openat resumed>) = 4 [pid 6018] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 6014] <... futex resumed>) = 0 [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6018] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] newfstatat(AT_FDCWD, "./9/cgroup.net", [pid 6019] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6018] <... futex resumed>) = 0 [pid 6016] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 6015] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6014] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5837] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6021] <... mount resumed>) = 0 [pid 6019] <... futex resumed>) = 1 [pid 6018] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6017] <... futex resumed>) = 0 [pid 6016] <... openat resumed>) = 4 [pid 6015] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] unlink("./9/cgroup.net" [pid 6021] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 6019] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6018] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6017] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6016] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6015] <... futex resumed>) = 0 [pid 6021] <... openat resumed>) = 3 [pid 6019] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6018] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 6017] <... futex resumed>) = 0 [pid 6016] <... futex resumed>) = 1 [pid 6015] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6014] <... futex resumed>) = 0 [pid 5837] <... unlink resumed>) = 0 [pid 6021] chdir("./file2" [pid 6019] read(-1, [pid 6017] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6016] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6014] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6021] <... chdir resumed>) = 0 [pid 6019] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 6018] <... openat resumed>) = 4 [pid 6016] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6014] <... futex resumed>) = 0 [pid 5837] umount2("./9/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6021] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6019] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6018] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6016] read(-1, [pid 6014] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6021] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6019] <... futex resumed>) = 1 [pid 6018] <... futex resumed>) = 1 [pid 6017] <... futex resumed>) = 0 [pid 6016] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 6015] <... futex resumed>) = 0 [pid 6021] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6019] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6018] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6017] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6016] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] newfstatat(AT_FDCWD, "./9/binderfs", [pid 6021] <... futex resumed>) = 1 [pid 6020] <... futex resumed>) = 0 [pid 6019] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6018] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6017] <... futex resumed>) = 0 [pid 6016] <... futex resumed>) = 1 [pid 6015] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6014] <... futex resumed>) = 0 [pid 6021] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6020] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6019] memfd_create("syzkaller", 0 [pid 6018] read(-1, [pid 6017] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6016] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6015] <... futex resumed>) = 0 [pid 6014] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6021] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6020] <... futex resumed>) = 0 [pid 6019] <... memfd_create resumed>) = 5 [pid 6018] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 6016] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6015] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6014] <... futex resumed>) = 0 [pid 5837] unlink("./9/binderfs" [pid 6021] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 6020] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6019] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6018] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6016] memfd_create("syzkaller", 0 [pid 6015] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6014] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6021] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 6019] <... mmap resumed>) = 0x7f0d62800000 [pid 6018] <... futex resumed>) = 0 [pid 6016] <... memfd_create resumed>) = 5 [pid 6015] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] <... unlink resumed>) = 0 [pid 6021] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6018] memfd_create("syzkaller", 0 [ 99.991380][ T6021] NILFS (loop0): broken superblock, retrying with spare superblock (blocksize = 1024) [ 100.007281][ T5838] udevd[5838]: incorrect nilfs2 checksum on /dev/loop0 [ 100.010888][ T6025] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6016] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6015] <... futex resumed>) = 0 [pid 5837] umount2("./9/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6021] <... futex resumed>) = 1 [pid 6020] <... futex resumed>) = 0 [pid 6019] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 6018] <... memfd_create resumed>) = 5 [pid 6016] <... mmap resumed>) = 0x7f0d62800000 [pid 6015] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6018] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 [pid 6018] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 6021] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6020] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6019] <... write resumed>) = 524288 [pid 6016] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 6021] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6020] <... futex resumed>) = 0 [pid 6020] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6018] munmap(0x7f0d62800000, 138412032) = 0 [pid 6021] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 6016] <... write resumed>) = 524288 [pid 6019] munmap(0x7f0d62800000, 138412032 [pid 6021] <... openat resumed>) = 4 [pid 6018] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 6016] munmap(0x7f0d62800000, 138412032 [pid 6021] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6019] <... munmap resumed>) = 0 [pid 6018] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6018] close(5) = 0 [pid 6018] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6021] <... futex resumed>) = 1 [pid 6020] <... futex resumed>) = 0 [pid 6019] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6016] <... munmap resumed>) = 0 [pid 6021] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6020] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6019] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6016] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6021] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [ 100.044043][ T6013] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 100.056679][ T6013] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 100.075266][ T6013] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6020] <... futex resumed>) = 0 [pid 6019] close(5 [pid 6016] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6021] read(-1, [pid 6020] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6018] <... futex resumed>) = 1 [pid 6015] <... futex resumed>) = 0 [pid 6021] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 6016] close(5 [pid 6021] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6018] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6016] <... close resumed>) = 0 [pid 6015] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6021] <... futex resumed>) = 1 [pid 6020] <... futex resumed>) = 0 [pid 6019] <... close resumed>) = 0 [pid 6018] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6016] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6015] <... futex resumed>) = 0 [pid 6021] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6020] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6019] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6018] fsync(-1 [pid 6016] <... futex resumed>) = 1 [pid 6015] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6021] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6020] <... futex resumed>) = 0 [pid 6019] <... futex resumed>) = 1 [pid 6018] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 6016] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6021] memfd_create("syzkaller", 0 [pid 6020] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6019] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6018] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6017] <... futex resumed>) = 0 [pid 6014] <... futex resumed>) = 0 [pid 6021] <... memfd_create resumed>) = 5 [pid 6018] <... futex resumed>) = 1 [pid 6015] <... futex resumed>) = 0 [pid 6021] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6018] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6015] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6021] <... mmap resumed>) = 0x7f0d62800000 [pid 6018] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6015] <... futex resumed>) = 0 [pid 6018] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6015] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6018] <... openat resumed>) = 5 [pid 6018] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6015] <... futex resumed>) = 0 [pid 6018] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6017] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6015] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6014] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6018] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6015] <... futex resumed>) = 0 [pid 6018] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [ 100.086832][ T6013] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 100.098074][ T6013] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 100.109723][ T6013] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 100.122289][ T6013] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6015] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6021] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 6019] <... futex resumed>) = 0 [pid 6017] <... futex resumed>) = 1 [pid 6016] <... futex resumed>) = 0 [pid 6014] <... futex resumed>) = 1 [pid 6016] fsync(-1 [pid 6014] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6016] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 6016] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6014] <... futex resumed>) = 0 [pid 6016] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6014] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6016] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6014] <... futex resumed>) = 0 [pid 6016] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6014] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6021] <... write resumed>) = 524288 [pid 6019] fsync(-1 [pid 6017] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6016] <... openat resumed>) = 5 [pid 6016] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6014] <... futex resumed>) = 0 [pid 6016] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 6014] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6019] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 6014] <... futex resumed>) = 0 [pid 6019] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6014] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6019] <... futex resumed>) = 1 [pid 6017] <... futex resumed>) = 0 [pid 6019] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6017] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6019] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6017] <... futex resumed>) = 0 [pid 6019] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6017] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6019] <... openat resumed>) = 5 [pid 6019] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6021] munmap(0x7f0d62800000, 138412032 [pid 6019] <... futex resumed>) = 1 [pid 6017] <... futex resumed>) = 0 [pid 6021] <... munmap resumed>) = 0 [pid 6019] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6021] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6019] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6017] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6021] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6019] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 6017] <... futex resumed>) = 0 [pid 6017] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6021] close(5) = 0 [pid 6015] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6015] futex(0x7f0d6aef46dc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6015] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0d6adde000 [ 100.134162][ T6013] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 100.143688][ T6023] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 100.147765][ T6013] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 100.170113][ T6013] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 100.181816][ T6013] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6015] mprotect(0x7f0d6addf000, 131072, PROT_READ|PROT_WRITE [pid 6021] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6018] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 6016] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 6015] <... mprotect resumed>) = 0 [pid 6018] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6016] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6015] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6018] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6016] <... futex resumed>) = 1 [pid 6015] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6014] <... futex resumed>) = 0 [pid 6016] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6015] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6adfe990, parent_tid=0x7f0d6adfe990, exit_signal=0, stack=0x7f0d6adde000, stack_size=0x20300, tls=0x7f0d6adfe6c0} [pid 6014] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 6026 attached [pid 6016] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6014] <... futex resumed>) = 0 [pid 6026] rseq(0x7f0d6adfefe0, 0x20, 0, 0x53053053) = 0 [pid 6016] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 6015] <... clone3 resumed> => {parent_tid=[26]}, 88) = 26 [pid 6014] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6026] set_robust_list(0x7f0d6adfe9a0, 24 [pid 6015] rt_sigprocmask(SIG_SETMASK, [], [pid 6026] <... set_robust_list resumed>) = 0 [pid 6015] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6026] rt_sigprocmask(SIG_SETMASK, [], [pid 6015] futex(0x7f0d6aef46d8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6026] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6015] <... futex resumed>) = 0 [pid 6021] <... futex resumed>) = 1 [pid 6020] <... futex resumed>) = 0 [pid 6026] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 6021] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6020] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6015] futex(0x7f0d6aef46dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6021] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6020] <... futex resumed>) = 0 [pid 6016] <... openat resumed>) = 6 [pid 6019] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 6019] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6017] <... futex resumed>) = 0 [pid 6019] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6017] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6019] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6017] <... futex resumed>) = 0 [pid 6019] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 6017] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6021] fsync(-1 [ 100.193452][ T6024] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 100.198280][ T6022] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 100.215395][ T6013] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 100.227542][ T6013] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6026] <... openat resumed>) = 6 [pid 6020] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6019] <... openat resumed>) = 6 [pid 6016] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6026] futex(0x7f0d6aef46dc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6021] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 6019] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6016] <... futex resumed>) = 1 [pid 6014] <... futex resumed>) = 0 [pid 6026] <... futex resumed>) = 1 [pid 6021] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6019] <... futex resumed>) = 1 [pid 6017] <... futex resumed>) = 0 [pid 6016] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6015] <... futex resumed>) = 0 [pid 6014] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6026] futex(0x7f0d6aef46d8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6021] <... futex resumed>) = 1 [pid 6020] <... futex resumed>) = 0 [pid 6019] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6017] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6016] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6015] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6021] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6020] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6019] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6018] <... futex resumed>) = 0 [pid 6017] <... futex resumed>) = 0 [pid 6016] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 6015] <... futex resumed>) = 1 [pid 6014] <... futex resumed>) = 0 [pid 6021] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6020] <... futex resumed>) = 0 [pid 6019] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 6018] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 6017] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6021] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6020] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6021] <... openat resumed>) = 5 [ 100.238411][ T6013] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 100.249355][ T6013] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 100.260626][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 100.271685][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 100.283601][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6021] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6015] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6021] <... futex resumed>) = 1 [pid 6020] <... futex resumed>) = 0 [pid 6014] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6021] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6020] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6021] <... futex resumed>) = 0 [pid 6020] <... futex resumed>) = 1 [pid 6021] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 6020] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6017] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [ 100.295720][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 100.307356][ T5837] NILFS (loop4): disposed unprocessed dirty file(s) when stopping log writer [ 100.332072][ T6025] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6021] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 6020] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5837] <... umount2 resumed>) = 0 [pid 6021] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] umount2("./9/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6021] <... futex resumed>) = 0 [pid 6021] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5837] newfstatat(AT_FDCWD, "./9/file2", [pid 6020] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6021] <... futex resumed>) = 0 [pid 6020] <... futex resumed>) = 1 [pid 5837] umount2("./9/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6021] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 6020] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6014] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6021] <... openat resumed>) = 6 [pid 5837] openat(AT_FDCWD, "./9/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6021] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6020] <... futex resumed>) = 0 [pid 5837] <... openat resumed>) = 4 [pid 6021] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6020] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] newfstatat(4, "", [pid 6021] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6020] <... futex resumed>) = 0 [pid 6021] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 6020] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5837] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 6015] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5837] getdents64(4, 0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 5837] getdents64(4, 0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 5837] close(4) = 0 [pid 5837] rmdir("./9/file2") = 0 [pid 5837] getdents64(3, 0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 5837] close(3) = 0 [pid 5837] rmdir("./9" [pid 6020] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5837] <... rmdir resumed>) = 0 [pid 5837] mkdir("./10", 0777) = 0 [pid 5837] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5837] ioctl(3, LOOP_CLR_FD) = 0 [pid 5837] close(3) = 0 [pid 5837] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6027 attached [pid 6027] set_robust_list(0x55555fa3c6a0, 24) = 0 [pid 5837] <... clone resumed>, child_tidptr=0x55555fa3c690) = 24 [pid 6027] chdir("./10") = 0 [pid 6027] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6027] setpgid(0, 0) = 0 [pid 6027] symlink("/syzcgroup/unified/syz4", "./cgroup") = 0 [pid 6027] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu") = 0 [pid 6027] symlink("/syzcgroup/net/syz4", "./cgroup.net") = 0 [pid 6027] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6027] write(3, "1000", 4) = 4 [pid 6027] close(3) = 0 executing program [pid 6027] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6027] write(1, "executing program\n", 18) = 18 [pid 6027] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6027] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, NULL, 8) = 0 [pid 6027] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6027] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0d6adff000 [pid 6027] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6027] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6027] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0}./strace-static-x86_64: Process 6028 attached [pid 6028] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053) = 0 [pid 6028] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 6027] <... clone3 resumed> => {parent_tid=[25]}, 88) = 25 [pid 6027] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6027] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6027] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6028] <... set_robust_list resumed>) = 0 [pid 6028] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6028] memfd_create("syzkaller", 0) = 3 [pid 6028] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 [pid 6016] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 6016] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6016] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6014] close(3) = 0 [pid 6014] close(4) = 0 [pid 6014] close(5) = 0 [pid 6014] close(6 [pid 6028] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6014] <... close resumed>) = 0 [pid 6014] close(7) = -1 EBADF (Bad file descriptor) [pid 6014] close(8) = -1 EBADF (Bad file descriptor) [pid 6014] close(9) = -1 EBADF (Bad file descriptor) [pid 6014] close(10) = -1 EBADF (Bad file descriptor) [pid 6014] close(11) = -1 EBADF (Bad file descriptor) [pid 6014] close(12) = -1 EBADF (Bad file descriptor) [pid 6014] close(13) = -1 EBADF (Bad file descriptor) [pid 6014] close(14) = -1 EBADF (Bad file descriptor) [pid 6014] close(15) = -1 EBADF (Bad file descriptor) [pid 6014] close(16) = -1 EBADF (Bad file descriptor) [pid 6014] close(17) = -1 EBADF (Bad file descriptor) [pid 6014] close(18) = -1 EBADF (Bad file descriptor) [pid 6014] close(19) = -1 EBADF (Bad file descriptor) [pid 6014] close(20) = -1 EBADF (Bad file descriptor) [pid 6014] close(21 [pid 6028] <... write resumed>) = 1048576 [pid 6014] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6028] munmap(0x7f0d62800000, 138412032 [pid 6014] close(22) = -1 EBADF (Bad file descriptor) [pid 6014] close(23) = -1 EBADF (Bad file descriptor) [pid 6028] <... munmap resumed>) = 0 [pid 6014] close(24 [ 100.560651][ T6024] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6028] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 6014] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6014] close(25) = -1 EBADF (Bad file descriptor) [pid 6014] close(26) = -1 EBADF (Bad file descriptor) [pid 6014] close(27 [pid 6028] ioctl(4, LOOP_SET_FD, 3 [pid 6014] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6014] close(28) = -1 EBADF (Bad file descriptor) [pid 6014] close(29) = -1 EBADF (Bad file descriptor) [pid 6028] <... ioctl resumed>) = 0 [pid 6014] exit_group(0 [pid 6028] close(3 [pid 6016] <... futex resumed>) = ? [pid 6014] <... exit_group resumed>) = ? [pid 6028] <... close resumed>) = 0 [pid 6016] +++ exited with 0 +++ [pid 6028] close(4) = 0 [pid 6014] +++ exited with 0 +++ [pid 6028] mkdir("./file2", 0777 [pid 5835] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23, si_uid=0, si_status=0, si_utime=0, si_stime=21 /* 0.21 s */} --- [pid 5835] umount2("./9", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5835] openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [ 100.628907][ T6028] loop4: detected capacity change from 0 to 2048 [ 100.646862][ T6022] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5835] newfstatat(3, "", [pid 6028] <... mkdir resumed>) = 0 [pid 5835] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 6028] mount("/dev/loop4", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 5835] getdents64(3, [pid 6021] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 6019] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 5835] <... getdents64 resumed>0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 6018] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 6018] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5835] umount2("./9/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6019] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6018] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6019] <... futex resumed>) = 0 [pid 5835] newfstatat(AT_FDCWD, "./9/cgroup", [pid 6019] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5835] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6017] close(3 [pid 5835] unlink("./9/cgroup" [pid 6017] <... close resumed>) = 0 [pid 5835] <... unlink resumed>) = 0 [ 100.677094][ T6028] NILFS (loop4): broken superblock, retrying with spare superblock (blocksize = 1024) [ 100.679229][ T6025] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 100.699743][ T6023] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 100.710888][ T5838] udevd[5838]: incorrect nilfs2 checksum on /dev/loop4 [pid 6017] close(4 [pid 5835] umount2("./9/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6017] <... close resumed>) = 0 [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6017] close(5 [pid 5835] newfstatat(AT_FDCWD, "./9/cgroup.cpu", [pid 6017] <... close resumed>) = 0 [pid 5835] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6017] close(6 [pid 6015] close(3 [pid 5835] unlink("./9/cgroup.cpu" [pid 6021] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6017] <... close resumed>) = 0 [pid 6015] <... close resumed>) = 0 [pid 5835] <... unlink resumed>) = 0 [pid 6021] <... futex resumed>) = 0 [pid 6020] close(3 [pid 6017] close(7 [pid 6015] close(4 [pid 6021] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6020] <... close resumed>) = 0 [pid 6017] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6020] close(4 [pid 6017] close(8 [pid 6015] <... close resumed>) = 0 [pid 6028] <... mount resumed>) = 0 [pid 6028] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 6020] <... close resumed>) = 0 [pid 6017] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6015] close(5 [pid 5835] umount2("./9/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6028] <... openat resumed>) = 3 [pid 6020] close(5 [pid 6017] close(9 [pid 6015] <... close resumed>) = 0 [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6028] chdir("./file2" [pid 6020] <... close resumed>) = 0 [pid 6017] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6015] close(6 [pid 6028] <... chdir resumed>) = 0 [pid 6015] <... close resumed>) = 0 [pid 6028] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6015] close(7 [pid 6028] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6020] close(6 [pid 6017] close(10 [pid 6015] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6028] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6020] <... close resumed>) = 0 [pid 6017] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6015] close(8 [pid 5835] newfstatat(AT_FDCWD, "./9/cgroup.net", [pid 6028] <... futex resumed>) = 1 [pid 6027] <... futex resumed>) = 0 [pid 6017] close(11 [pid 6015] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6028] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6027] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6020] close(7 [pid 6017] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6015] close(9 [pid 5835] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6028] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6027] <... futex resumed>) = 0 [pid 6020] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6017] close(12 [pid 6015] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5835] unlink("./9/cgroup.net" [pid 6028] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 6027] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6020] close(8 [pid 6017] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6015] close(10 [pid 6028] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 6020] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6017] close(13 [pid 6015] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5835] <... unlink resumed>) = 0 [pid 6028] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6020] close(9 [pid 6017] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6015] close(11 [pid 5835] umount2("./9/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6028] <... futex resumed>) = 1 [pid 6027] <... futex resumed>) = 0 [pid 6020] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6017] close(14 [pid 6015] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6028] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6027] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6020] close(10 [pid 6017] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6015] close(12 [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6028] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6027] <... futex resumed>) = 0 [pid 6020] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6017] close(15 [pid 6015] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5835] newfstatat(AT_FDCWD, "./9/binderfs", [pid 6028] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 6027] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6020] close(11 [pid 6017] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6015] close(13 [pid 6028] <... openat resumed>) = 4 [pid 6020] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6017] close(16 [pid 6015] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5835] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6028] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6020] close(12 [pid 6017] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6015] close(14 [pid 6028] <... futex resumed>) = 1 [pid 6027] <... futex resumed>) = 0 [pid 6020] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6015] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5835] unlink("./9/binderfs" [pid 6028] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6027] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6020] close(13 [pid 6017] close(17 [pid 6015] close(15 [pid 6028] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6027] <... futex resumed>) = 0 [pid 6020] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6017] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6015] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5835] <... unlink resumed>) = 0 [pid 6028] read(-1, [pid 6027] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6020] close(14 [pid 6017] close(18 [pid 6015] close(16 [pid 6028] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 6020] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6017] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6015] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5835] umount2("./9/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6028] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6020] close(15 [pid 6017] close(19 [pid 6015] close(17 [pid 6028] <... futex resumed>) = 1 [pid 6027] <... futex resumed>) = 0 [pid 6020] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6017] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6015] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6028] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [ 100.712677][ T6029] NILFS (loop4): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6027] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6020] close(16 [pid 6017] close(20 [pid 6015] close(18 [pid 6027] <... futex resumed>) = 0 [pid 6020] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6017] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6027] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6020] close(17 [pid 6017] close(21 [pid 6020] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6017] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6020] close(18 [pid 6017] close(22 [pid 6020] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6017] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6020] close(19 [pid 6017] close(23 [pid 6020] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6017] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6020] close(20 [pid 6017] close(24 [pid 6020] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6017] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6020] close(21 [pid 6017] close(25 [pid 6020] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6017] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6028] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6020] close(22 [pid 6017] close(26 [pid 6015] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6020] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6017] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6020] close(23 [pid 6017] close(27 [pid 6020] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6017] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6020] close(24 [pid 6017] close(28 [pid 6020] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6017] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6020] close(25 [pid 6017] close(29 [pid 6020] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6017] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6020] close(26 [pid 6017] exit_group(0 [pid 6020] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6019] <... futex resumed>) = ? [pid 6017] <... exit_group resumed>) = ? [pid 6020] close(27 [pid 6019] +++ exited with 0 +++ [pid 6017] +++ exited with 0 +++ [pid 6020] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6020] close(28 [pid 6015] close(19 [pid 5834] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=28, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 6028] memfd_create("syzkaller", 0 [pid 6020] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6028] <... memfd_create resumed>) = 5 [pid 6020] close(29 [pid 6015] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6028] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6020] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6015] close(20 [pid 6028] <... mmap resumed>) = 0x7f0d62800000 [pid 6020] exit_group(0 [pid 6015] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5834] umount2("./10", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6028] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 6015] close(21 [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6028] <... write resumed>) = 524288 [pid 6015] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5834] openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6028] munmap(0x7f0d62800000, 138412032 [pid 6015] close(22 [pid 5834] <... openat resumed>) = 3 [pid 6028] <... munmap resumed>) = 0 [pid 6021] <... futex resumed>) = ? [pid 6020] <... exit_group resumed>) = ? [pid 6015] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5834] newfstatat(3, "", [pid 6028] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6021] +++ exited with 0 +++ [pid 6015] close(23 [pid 5834] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 6028] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6015] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5834] getdents64(3, [pid 6028] close(5 [pid 6015] close(24 [pid 5834] <... getdents64 resumed>0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 6015] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5834] umount2("./10/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6015] close(25 [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6015] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5834] newfstatat(AT_FDCWD, "./10/cgroup", [pid 6015] close(26 [pid 5834] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6020] +++ exited with 0 +++ [pid 6015] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5834] unlink("./10/cgroup" [pid 6015] close(27 [pid 5834] <... unlink resumed>) = 0 [pid 6015] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5834] umount2("./10/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6015] close(28 [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6015] <... close resumed>) = -1 EBADF (Bad file descriptor) [ 100.754761][ T6024] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 100.766888][ T6024] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 100.779814][ T6024] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 100.792801][ T6024] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5834] newfstatat(AT_FDCWD, "./10/cgroup.cpu", [pid 6028] <... close resumed>) = 0 [pid 6015] close(29 [pid 5834] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6015] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5834] unlink("./10/cgroup.cpu" [pid 6015] exit_group(0 [pid 5834] <... unlink resumed>) = 0 [pid 6028] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6015] <... exit_group resumed>) = ? [pid 5834] umount2("./10/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6028] <... futex resumed>) = 1 [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6028] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5834] newfstatat(AT_FDCWD, "./10/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5834] unlink("./10/cgroup.net") = 0 [pid 5834] umount2("./10/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5834] newfstatat(AT_FDCWD, "./10/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5834] unlink("./10/binderfs") = 0 [pid 5834] umount2("./10/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=30, si_uid=0, si_status=0, si_utime=0, si_stime=22 /* 0.22 s */} --- [pid 5833] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 6027] <... futex resumed>) = 0 [pid 6026] <... futex resumed>) = ? [pid 6018] <... futex resumed>) = ? [ 100.813259][ T6024] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 100.824600][ T6024] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 100.825983][ T6022] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 100.837040][ T6024] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6027] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6026] +++ exited with 0 +++ [pid 6018] +++ exited with 0 +++ [pid 6015] +++ exited with 0 +++ [pid 5836] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=24, si_uid=0, si_status=0, si_utime=0, si_stime=23 /* 0.23 s */} --- [pid 5836] umount2("./9", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5836] openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5836] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 5836] getdents64(3, 0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 5836] umount2("./9/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5836] newfstatat(AT_FDCWD, "./9/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5836] unlink("./9/cgroup") = 0 [pid 5836] umount2("./9/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5836] newfstatat(AT_FDCWD, "./9/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5836] unlink("./9/cgroup.cpu") = 0 [pid 5836] umount2("./9/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5836] newfstatat(AT_FDCWD, "./9/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5836] unlink("./9/cgroup.net") = 0 [pid 5836] umount2("./9/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5836] newfstatat(AT_FDCWD, "./9/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5836] unlink("./9/binderfs") = 0 [pid 5836] umount2("./9/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6028] <... futex resumed>) = 0 [pid 6027] <... futex resumed>) = 1 [pid 6028] fsync(-1 [pid 6027] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5833] umount2("./10", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6028] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6028] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5833] openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6028] <... futex resumed>) = 1 [pid 6027] <... futex resumed>) = 0 [pid 5833] <... openat resumed>) = 3 [pid 6028] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6027] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5833] newfstatat(3, "", [pid 6028] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6027] <... futex resumed>) = 0 [pid 5833] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 6028] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6027] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5833] getdents64(3, 0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 6028] <... openat resumed>) = 5 [pid 5833] umount2("./10/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 100.854257][ T6022] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 100.871274][ T6024] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 100.888737][ T6023] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 100.889381][ T6022] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6028] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5833] newfstatat(AT_FDCWD, "./10/cgroup", [pid 6028] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5833] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./10/cgroup") = 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.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/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/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6027] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [ 100.900808][ T6023] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 100.925121][ T6022] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 100.937664][ T6023] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 100.939899][ T6025] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6027] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6028] <... futex resumed>) = 0 [pid 6027] <... futex resumed>) = 1 [ 100.949274][ T6024] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 100.965568][ T6023] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 100.974328][ T6025] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 100.985798][ T6023] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6028] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [ 101.000358][ T6025] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 101.010483][ T6022] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 101.023231][ T6024] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 101.047749][ T6025] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6027] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [ 101.050486][ T6023] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 101.060532][ T6024] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 101.083797][ T6022] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 101.085856][ T6029] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6027] futex(0x7f0d6aef46dc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 101.099073][ T6023] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 101.116556][ T6025] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 101.120058][ T6022] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 101.132335][ T6024] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6028] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 6027] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6028] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6027] <... mmap resumed>) = 0x7f0d6adde000 [ 101.150317][ T6023] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 101.155355][ T6025] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 101.177797][ T6022] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 101.178617][ T6024] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 101.199735][ T6023] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6028] <... futex resumed>) = 0 [ 101.200795][ T6025] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 101.211871][ T6022] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 101.222741][ T6024] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 101.244425][ T6023] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6027] mprotect(0x7f0d6addf000, 131072, PROT_READ|PROT_WRITE [pid 6028] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6027] <... mprotect resumed>) = 0 [pid 6027] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6027] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6adfe990, parent_tid=0x7f0d6adfe990, exit_signal=0, stack=0x7f0d6adde000, stack_size=0x20300, tls=0x7f0d6adfe6c0}./strace-static-x86_64: Process 6030 attached [ 101.244604][ T6023] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 101.268311][ T6022] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 101.268663][ T6025] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 101.280796][ T6023] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 101.291668][ T6025] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6030] rseq(0x7f0d6adfefe0, 0x20, 0, 0x53053053 [pid 6027] <... clone3 resumed> => {parent_tid=[26]}, 88) = 26 [pid 6030] <... rseq resumed>) = 0 [ 101.303863][ T6022] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 101.315081][ T6024] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 101.327312][ T6023] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 101.339178][ T6025] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6027] rt_sigprocmask(SIG_SETMASK, [], [pid 6030] set_robust_list(0x7f0d6adfe9a0, 24 [pid 6027] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6030] <... set_robust_list resumed>) = 0 [pid 6027] futex(0x7f0d6aef46d8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6030] rt_sigprocmask(SIG_SETMASK, [], [pid 6027] <... futex resumed>) = 0 [pid 6030] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6027] futex(0x7f0d6aef46dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [ 101.350982][ T6022] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 101.362131][ T6025] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 101.372515][ T5835] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 101.384788][ T6025] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6030] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000) = 6 [pid 6030] futex(0x7f0d6aef46dc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [ 101.408279][ T5835] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 101.409245][ T6025] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 101.421882][ T6023] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 101.433645][ T6022] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 101.445265][ T6025] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6030] futex(0x7f0d6aef46d8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6027] <... futex resumed>) = 0 [ 101.455885][ T5835] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 101.468751][ T6025] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 101.479602][ T6022] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 101.492087][ T6023] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6027] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6028] <... futex resumed>) = 0 [pid 6027] <... futex resumed>) = 1 [pid 6028] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [ 101.502494][ T5835] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 101.514884][ T5833] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 101.534679][ T6022] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 101.535979][ T5833] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 101.546587][ T5836] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 101.569921][ T5835] NILFS (loop3): disposed unprocessed dirty file(s) when stopping log writer [ 101.570105][ T5836] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 101.590805][ T5836] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 101.601880][ T5836] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6027] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [ 101.613102][ T5836] NILFS (loop2): disposed unprocessed dirty file(s) when stopping log writer [ 101.619224][ T5833] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 101.642087][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 101.649873][ T5833] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 101.654532][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 101.678753][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 101.680679][ T5833] NILFS (loop0): disposed unprocessed dirty file(s) when stopping log writer [ 101.693130][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5833] <... umount2 resumed>) = 0 [pid 5833] umount2("./10/file2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./10/file2", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [ 101.715534][ T5834] NILFS (loop1): disposed unprocessed dirty file(s) when stopping log writer [pid 5833] umount2("./10/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6028] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 5836] <... umount2 resumed>) = 0 [pid 5836] umount2("./9/file2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5836] newfstatat(AT_FDCWD, "./9/file2", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5836] umount2("./9/file2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5836] openat(AT_FDCWD, "./9/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5836] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 5836] getdents64(4, 0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 5836] getdents64(4, 0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 5836] close(4 [pid 5835] <... umount2 resumed>) = 0 [pid 5836] <... close resumed>) = 0 [pid 6028] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5836] rmdir("./9/file2" [pid 5835] umount2("./9/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6028] <... futex resumed>) = 0 [pid 5836] <... rmdir resumed>) = 0 [pid 5836] getdents64(3, 0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 5836] close(3) = 0 [pid 5836] rmdir("./9") = 0 [pid 5836] mkdir("./10", 0777 [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5836] <... mkdir resumed>) = 0 [pid 5833] openat(AT_FDCWD, "./10/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5836] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5833] <... openat resumed>) = 4 [pid 6028] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5834] <... umount2 resumed>) = 0 [pid 6027] close(3 [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5834] umount2("./10/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6027] <... close resumed>) = 0 [pid 5835] newfstatat(AT_FDCWD, "./9/file2", [pid 5836] <... openat resumed>) = 3 [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(4, "", [pid 6027] close(4 [pid 5836] ioctl(3, LOOP_CLR_FD [pid 5835] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5834] newfstatat(AT_FDCWD, "./10/file2", [pid 5836] <... ioctl resumed>) = 0 [pid 5835] umount2("./9/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5833] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 6027] <... close resumed>) = 0 [pid 5836] close(3 [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5834] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] getdents64(4, [pid 6027] close(5 [pid 5835] openat(AT_FDCWD, "./9/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5834] umount2("./10/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6027] <... close resumed>) = 0 [pid 5835] <... openat resumed>) = 4 [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6027] close(6 [pid 5835] newfstatat(4, "", [pid 5834] openat(AT_FDCWD, "./10/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6027] <... close resumed>) = 0 [pid 5835] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 5834] <... openat resumed>) = 4 [pid 6027] close(7 [pid 5835] getdents64(4, [pid 5834] newfstatat(4, "", [pid 6027] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5835] <... getdents64 resumed>0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 5834] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 6027] close(8 [pid 5835] getdents64(4, [pid 5834] getdents64(4, [pid 6027] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5835] <... getdents64 resumed>0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 5834] <... getdents64 resumed>0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 5835] close(4 [pid 5834] getdents64(4, [pid 5835] <... close resumed>) = 0 [pid 5834] <... getdents64 resumed>0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 5835] rmdir("./9/file2" [pid 5834] close(4 [pid 5835] <... rmdir resumed>) = 0 [pid 5834] <... close resumed>) = 0 [pid 5835] getdents64(3, [pid 5834] rmdir("./10/file2" [pid 6027] close(9 [pid 5835] <... getdents64 resumed>0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 5834] <... rmdir resumed>) = 0 [pid 6027] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5835] close(3 [pid 5834] getdents64(3, [pid 6027] close(10 [pid 5835] <... close resumed>) = 0 [pid 5834] <... getdents64 resumed>0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 6027] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5835] rmdir("./9" [pid 5834] close(3 [pid 6027] close(11 [pid 5835] <... rmdir resumed>) = 0 [pid 5834] <... close resumed>) = 0 [pid 5833] <... getdents64 resumed>0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 6027] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] <... close resumed>) = 0 [pid 5835] mkdir("./10", 0777 [pid 5834] rmdir("./10" [pid 5833] getdents64(4, [pid 5836] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5835] <... mkdir resumed>) = 0 [pid 5834] <... rmdir resumed>) = 0 [pid 6027] close(12 [pid 5835] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5834] mkdir("./11", 0777 [pid 5833] <... getdents64 resumed>0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 6027] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5835] <... openat resumed>) = 3 [pid 5834] <... mkdir resumed>) = 0 [pid 5833] close(4./strace-static-x86_64: Process 6031 attached [pid 6027] close(13 [ 101.777625][ T6029] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5835] ioctl(3, LOOP_CLR_FD [pid 5834] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6031] set_robust_list(0x55555fa3c6a0, 24 [pid 6027] <... close resumed>) = -1 EBADF (Bad file descriptor) executing program executing program [pid 5836] <... clone resumed>, child_tidptr=0x55555fa3c690) = 27 [pid 5835] <... ioctl resumed>) = 0 [pid 5834] <... openat resumed>) = 3 [pid 5833] <... close resumed>) = 0 [pid 6031] <... set_robust_list resumed>) = 0 [pid 6027] close(14 [pid 5835] close(3 [pid 5834] ioctl(3, LOOP_CLR_FD [pid 5833] rmdir("./10/file2" [pid 6031] chdir("./10" [pid 5833] <... rmdir resumed>) = 0 [pid 6031] <... chdir resumed>) = 0 [pid 5833] getdents64(3, [pid 6031] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5833] <... getdents64 resumed>0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 6031] <... prctl resumed>) = 0 [pid 5833] close(3 [pid 6031] setpgid(0, 0 [pid 5833] <... close resumed>) = 0 [pid 6031] <... setpgid resumed>) = 0 [pid 5833] rmdir("./10" [pid 6031] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5833] <... rmdir resumed>) = 0 [pid 6031] <... symlink resumed>) = 0 [pid 5833] mkdir("./11", 0777 [pid 6031] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5833] <... mkdir resumed>) = 0 [pid 6031] <... symlink resumed>) = 0 [pid 5833] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6031] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5833] <... openat resumed>) = 3 [pid 6031] <... symlink resumed>) = 0 [pid 5833] ioctl(3, LOOP_CLR_FD [pid 6031] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5835] <... close resumed>) = 0 [pid 5833] <... ioctl resumed>) = 0 [pid 6031] <... openat resumed>) = 3 [pid 5834] <... ioctl resumed>) = 0 [pid 5833] close(3 [pid 6031] write(3, "1000", 4 [pid 5833] <... close resumed>) = 0 [pid 6031] <... write resumed>) = 4 [pid 6031] close(3 [pid 5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6031] <... close resumed>) = 0 [pid 6031] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5835] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5834] close(3 [pid 6031] write(1, "executing program\n", 18) = 18 [pid 6031] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6031] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, NULL, 8) = 0 [pid 6031] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6031] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0d6adff000 [pid 6031] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6031] rt_sigprocmask(SIG_BLOCK, ~[], ./strace-static-x86_64: Process 6032 attached [], 8) = 0 [pid 6032] set_robust_list(0x55555fa3c6a0, 24 [pid 6031] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0} [pid 6032] <... set_robust_list resumed>) = 0 [pid 5833] <... clone resumed>, child_tidptr=0x55555fa3c690) = 32 [pid 6032] chdir("./11"./strace-static-x86_64: Process 6033 attached [pid 6031] <... clone3 resumed> => {parent_tid=[28]}, 88) = 28 [pid 6033] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 6032] <... chdir resumed>) = 0 [pid 6031] rt_sigprocmask(SIG_SETMASK, [], [pid 6033] <... rseq resumed>) = 0 [pid 6032] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6033] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 6032] <... prctl resumed>) = 0 [pid 6031] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6033] <... set_robust_list resumed>) = 0 [pid 6032] setpgid(0, 0 [pid 6031] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5834] <... close resumed>) = 0 [pid 6033] rt_sigprocmask(SIG_SETMASK, [], [pid 6032] <... setpgid resumed>) = 0 [pid 6031] <... futex resumed>) = 0 [pid 6032] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 5834] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6033] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6031] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6033] memfd_create("syzkaller", 0) = 3 ./strace-static-x86_64: Process 6035 attached [pid 6033] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6035] set_robust_list(0x55555fa3c6a0, 24 [pid 6033] <... mmap resumed>) = 0x7f0d62800000 [pid 5834] <... clone resumed>, child_tidptr=0x55555fa3c690) = 30 ./strace-static-x86_64: Process 6034 attached [pid 6035] <... set_robust_list resumed>) = 0 [pid 6032] <... symlink resumed>) = 0 [pid 6027] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6035] chdir("./11") = 0 [pid 6035] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6035] setpgid(0, 0) = 0 [pid 6032] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 6035] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 6032] <... symlink resumed>) = 0 [pid 6035] <... symlink resumed>) = 0 [pid 6035] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu") = 0 [pid 6032] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 6035] symlink("/syzcgroup/net/syz1", "./cgroup.net") = 0 [pid 6032] <... symlink resumed>) = 0 [pid 6035] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6035] write(3, "1000", 4) = 4 [pid 6035] close(3) = 0 [pid 6035] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6035] write(1, "executing program\n", 18) = 18 [pid 6035] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6032] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6035] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, [pid 6032] <... openat resumed>) = 3 [pid 6035] <... rt_sigaction resumed>NULL, 8) = 0 [pid 6032] write(3, "1000", 4 [pid 6035] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 6032] <... write resumed>) = 4 [pid 6035] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6032] close(3 [pid 6035] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6032] <... close resumed>) = 0 [pid 6035] <... mmap resumed>) = 0x7f0d6adff000 [pid 6032] symlink("/dev/binderfs", "./binderfs" [pid 6035] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE [pid 6032] <... symlink resumed>) = 0 [pid 6035] <... mprotect resumed>) = 0 executing program [pid 6034] set_robust_list(0x55555fa3c6a0, 24 [pid 6032] write(1, "executing program\n", 18 [pid 6027] close(15 [pid 5835] <... clone resumed>, child_tidptr=0x55555fa3c690) = 25 [pid 6035] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6034] <... set_robust_list resumed>) = 0 [pid 6033] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6035] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6032] <... write resumed>) = 18 [pid 6027] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6035] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0} [pid 6032] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6027] close(16./strace-static-x86_64: Process 6036 attached [pid 6034] chdir("./10" [pid 6032] <... futex resumed>) = 0 [pid 6036] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 6035] <... clone3 resumed> => {parent_tid=[31]}, 88) = 31 [pid 6027] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6036] <... rseq resumed>) = 0 [pid 6035] rt_sigprocmask(SIG_SETMASK, [], [pid 6034] <... chdir resumed>) = 0 [pid 6027] close(17 [pid 6036] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 6035] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6034] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6027] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6036] <... set_robust_list resumed>) = 0 [pid 6035] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6034] <... prctl resumed>) = 0 [pid 6027] close(18 [pid 6036] rt_sigprocmask(SIG_SETMASK, [], [pid 6035] <... futex resumed>) = 0 [pid 6027] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6036] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6035] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6034] setpgid(0, 0 [pid 6032] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, [pid 6027] close(19 [pid 6036] memfd_create("syzkaller", 0 [pid 6034] <... setpgid resumed>) = 0 [pid 6032] <... rt_sigaction resumed>NULL, 8) = 0 [pid 6027] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6036] <... memfd_create resumed>) = 3 [pid 6034] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 6032] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 6036] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6032] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6027] close(20 [pid 6036] <... mmap resumed>) = 0x7f0d62800000 [pid 6034] <... symlink resumed>) = 0 [pid 6034] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 6032] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6027] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6036] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6034] <... symlink resumed>) = 0 [pid 6032] <... mmap resumed>) = 0x7f0d6adff000 [pid 6027] close(21 [pid 6032] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE [pid 6027] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6027] close(22 [pid 6032] <... mprotect resumed>) = 0 [pid 6032] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6034] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 6027] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6032] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6032] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0} [pid 6034] <... symlink resumed>) = 0 [pid 6027] close(23./strace-static-x86_64: Process 6037 attached [pid 6034] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6027] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6037] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 6032] <... clone3 resumed> => {parent_tid=[33]}, 88) = 33 [pid 6034] <... openat resumed>) = 3 [pid 6027] close(24 [pid 6034] write(3, "1000", 4 [pid 6027] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6037] <... rseq resumed>) = 0 [pid 6032] rt_sigprocmask(SIG_SETMASK, [], [pid 6027] close(25 [pid 6037] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 6032] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6027] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6027] close(26 [pid 6034] <... write resumed>) = 4 [pid 6027] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6037] <... set_robust_list resumed>) = 0 [pid 6034] close(3 [pid 6032] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6027] close(27 [pid 6037] rt_sigprocmask(SIG_SETMASK, [], [pid 6034] <... close resumed>) = 0 [pid 6033] <... write resumed>) = 1048576 [pid 6032] <... futex resumed>) = 0 [pid 6027] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6037] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6034] symlink("/dev/binderfs", "./binderfs" [pid 6033] munmap(0x7f0d62800000, 138412032 [pid 6032] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6027] close(28 [pid 6037] memfd_create("syzkaller", 0 [pid 6027] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6034] <... symlink resumed>) = 0 [pid 6027] close(29 [pid 6034] write(1, "executing program\n", 18 [pid 6027] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6037] <... memfd_create resumed>) = 3 [pid 6037] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 executing program [pid 6033] <... munmap resumed>) = 0 [pid 6037] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6034] <... write resumed>) = 18 [pid 6027] exit_group(0 [pid 6033] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 6028] <... futex resumed>) = ? [pid 6030] <... futex resumed>) = ? [pid 6027] <... exit_group resumed>) = ? [pid 6034] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6028] +++ exited with 0 +++ [pid 6030] +++ exited with 0 +++ [pid 6033] <... openat resumed>) = 4 [pid 6033] ioctl(4, LOOP_SET_FD, 3 [pid 6034] <... futex resumed>) = 0 [pid 6027] +++ exited with 0 +++ [pid 6034] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, [pid 6036] <... write resumed>) = 1048576 [pid 6034] <... rt_sigaction resumed>NULL, 8) = 0 [pid 6036] munmap(0x7f0d62800000, 138412032) = 0 [pid 6036] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 6037] <... write resumed>) = 1048576 [pid 6034] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 6033] <... ioctl resumed>) = 0 [pid 6033] close(3 [pid 6037] munmap(0x7f0d62800000, 138412032 [pid 6033] <... close resumed>) = 0 [pid 6036] ioctl(4, LOOP_SET_FD, 3 [pid 6034] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5837] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=24, si_uid=0, si_status=0, si_utime=0, si_stime=23 /* 0.23 s */} --- [pid 6033] close(4 [ 101.950319][ T6033] loop2: detected capacity change from 0 to 2048 [pid 6034] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6036] <... ioctl resumed>) = 0 [pid 6034] <... mmap resumed>) = 0x7f0d6adff000 [pid 6033] <... close resumed>) = 0 [pid 6033] mkdir("./file2", 0777 [pid 6037] <... munmap resumed>) = 0 [pid 6033] <... mkdir resumed>) = 0 [pid 5837] umount2("./10", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6034] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6033] mount("/dev/loop2", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 6034] <... mprotect resumed>) = 0 [pid 5837] openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6034] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6037] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5837] <... openat resumed>) = 3 [pid 6034] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5837] newfstatat(3, "", [pid 6037] <... openat resumed>) = 4 [pid 6034] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0} [pid 5837] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 ./strace-static-x86_64: Process 6039 attached [pid 5837] getdents64(3, [pid 6037] ioctl(4, LOOP_SET_FD, 3 [pid 6039] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 6037] <... ioctl resumed>) = 0 [pid 6034] <... clone3 resumed> => {parent_tid=[26]}, 88) = 26 [pid 5837] <... getdents64 resumed>0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 5837] umount2("./10/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 6039] <... rseq resumed>) = 0 [pid 6034] rt_sigprocmask(SIG_SETMASK, [], [pid 5837] newfstatat(AT_FDCWD, "./10/cgroup", [pid 6039] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 6034] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5837] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6039] <... set_robust_list resumed>) = 0 [pid 6034] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] unlink("./10/cgroup" [pid 6039] rt_sigprocmask(SIG_SETMASK, [], [pid 6037] close(3 [pid 6036] close(3 [pid 6039] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6034] <... futex resumed>) = 0 [pid 5837] <... unlink resumed>) = 0 [pid 5837] umount2("./10/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6034] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6036] <... close resumed>) = 0 [pid 5837] newfstatat(AT_FDCWD, "./10/cgroup.cpu", [pid 6039] memfd_create("syzkaller", 0 [pid 5837] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [ 101.991344][ T6036] loop1: detected capacity change from 0 to 2048 [ 102.005371][ T6033] NILFS (loop2): broken superblock, retrying with spare superblock (blocksize = 1024) [ 102.021329][ T6037] loop0: detected capacity change from 0 to 2048 [pid 6039] <... memfd_create resumed>) = 3 [pid 6037] <... close resumed>) = 0 [pid 6036] close(4 [pid 6033] <... mount resumed>) = 0 [pid 5837] unlink("./10/cgroup.cpu" [pid 6039] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6037] close(4 [pid 6036] <... close resumed>) = 0 [pid 6033] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5837] <... unlink resumed>) = 0 [pid 6039] <... mmap resumed>) = 0x7f0d62800000 [pid 6037] <... close resumed>) = 0 [pid 5837] umount2("./10/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6036] mkdir("./file2", 0777 [pid 6033] <... openat resumed>) = 3 [pid 6036] <... mkdir resumed>) = 0 [pid 6033] chdir("./file2" [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5837] newfstatat(AT_FDCWD, "./10/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5837] unlink("./10/cgroup.net") = 0 [pid 6036] mount("/dev/loop1", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 6033] <... chdir resumed>) = 0 [pid 5837] umount2("./10/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6037] mkdir("./file2", 0777 [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5837] newfstatat(AT_FDCWD, "./10/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6033] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5837] unlink("./10/binderfs" [pid 6033] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5837] <... unlink resumed>) = 0 [pid 5837] umount2("./10/file2", MNT_FORCE|UMOUNT_NOFOLLOW [ 102.046093][ T6040] NILFS (loop2): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 102.075962][ T6036] NILFS (loop1): broken superblock, retrying with spare superblock (blocksize = 1024) [pid 6039] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6037] <... mkdir resumed>) = 0 [pid 6033] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6039] <... write resumed>) = 1048576 [pid 6037] mount("/dev/loop0", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 6033] <... futex resumed>) = 1 [pid 6031] <... futex resumed>) = 0 [pid 6039] munmap(0x7f0d62800000, 138412032 [pid 6033] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6031] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6033] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6031] <... futex resumed>) = 0 [pid 6033] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 6031] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6039] <... munmap resumed>) = 0 [pid 6033] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 6039] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [ 102.090153][ T6029] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 102.101194][ T6029] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 102.117079][ T6041] NILFS (loop1): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 102.119756][ T6039] loop3: detected capacity change from 0 to 2048 [ 102.135998][ T6037] NILFS (loop0): broken superblock, retrying with spare superblock (blocksize = 1024) [pid 6039] ioctl(4, LOOP_SET_FD, 3 [pid 6036] <... mount resumed>) = 0 [pid 6033] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6036] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 6033] <... futex resumed>) = 1 [pid 6031] <... futex resumed>) = 0 [pid 6033] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6031] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6033] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6031] <... futex resumed>) = 0 [pid 6036] <... openat resumed>) = 3 [pid 6033] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 6039] <... ioctl resumed>) = 0 [pid 6036] chdir("./file2" [pid 6031] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6036] <... chdir resumed>) = 0 [pid 6036] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6036] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6035] <... futex resumed>) = 0 [pid 6036] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6035] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6036] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6035] <... futex resumed>) = 0 [pid 6036] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 6035] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6036] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 6036] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6035] <... futex resumed>) = 0 [pid 6036] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6035] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6036] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6035] <... futex resumed>) = 0 [pid 6036] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 6035] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6036] <... openat resumed>) = 4 [pid 6036] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6035] <... futex resumed>) = 0 [pid 6036] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6035] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6036] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6035] <... futex resumed>) = 0 [pid 6036] read(-1, [pid 6035] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6036] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 6036] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6035] <... futex resumed>) = 0 [pid 6036] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6035] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6036] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6035] <... futex resumed>) = 0 [pid 6036] memfd_create("syzkaller", 0 [pid 6035] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6036] <... memfd_create resumed>) = 5 [pid 6036] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 [ 102.150270][ T6029] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 102.160332][ T6042] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 102.163164][ T6029] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 102.186048][ T6029] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6036] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 6039] close(3 [pid 6037] <... mount resumed>) = 0 [pid 6033] <... openat resumed>) = 4 [pid 6039] <... close resumed>) = 0 [pid 6037] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 6036] munmap(0x7f0d62800000, 138412032 [pid 6033] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6039] close(4 [pid 6037] <... openat resumed>) = 3 [pid 6036] <... munmap resumed>) = 0 [pid 6039] <... close resumed>) = 0 [pid 6036] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6039] mkdir("./file2", 0777 [pid 6037] chdir("./file2" [pid 6036] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6039] <... mkdir resumed>) = 0 [pid 6033] <... futex resumed>) = 1 [pid 6031] <... futex resumed>) = 0 [pid 6039] mount("/dev/loop3", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 6037] <... chdir resumed>) = 0 [pid 6036] close(5 [pid 6031] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6037] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6036] <... close resumed>) = 0 [pid 6033] read(-1, 0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 6037] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6033] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6031] <... futex resumed>) = 0 [pid 6033] <... futex resumed>) = 0 [pid 6031] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6033] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6031] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6037] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6031] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6037] <... futex resumed>) = 1 [ 102.197295][ T6029] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 102.218957][ T6039] NILFS (loop3): broken superblock, retrying with spare superblock (blocksize = 1024) [ 102.221802][ T6029] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6036] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6037] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6035] <... futex resumed>) = 0 [pid 6033] <... futex resumed>) = 0 [pid 6032] <... futex resumed>) = 0 [pid 6031] <... futex resumed>) = 1 [pid 6036] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6035] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6032] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6036] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6035] <... futex resumed>) = 0 [pid 6032] <... futex resumed>) = 0 [pid 6036] fsync(-1 [pid 6035] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6032] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6036] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 6036] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6035] <... futex resumed>) = 0 [pid 6036] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6035] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6036] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6035] <... futex resumed>) = 0 [pid 6036] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6035] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6036] <... openat resumed>) = 5 [pid 6037] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6036] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6033] memfd_create("syzkaller", 0 [pid 6031] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6036] <... futex resumed>) = 1 [pid 6035] <... futex resumed>) = 0 [pid 6036] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 6035] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 102.246728][ T6029] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 102.259002][ T6029] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 102.270274][ T6043] NILFS (loop3): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 102.283126][ T6029] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6035] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6039] <... mount resumed>) = 0 [pid 6037] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 6033] <... memfd_create resumed>) = 5 [pid 6037] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 6037] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6037] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6033] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 [pid 6035] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6035] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 6035] futex(0x7f0d6aef46dc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6035] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0d6adde000 [pid 6039] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY) = 3 [pid 6039] chdir("./file2" [pid 6036] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 6035] mprotect(0x7f0d6addf000, 131072, PROT_READ|PROT_WRITE [pid 6033] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 6032] <... futex resumed>) = 0 [pid 6036] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6035] <... mprotect resumed>) = 0 [pid 6036] <... futex resumed>) = 0 [pid 6035] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6032] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6037] <... futex resumed>) = 0 [pid 6036] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6035] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6032] <... futex resumed>) = 1 [pid 6037] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 6035] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6adfe990, parent_tid=0x7f0d6adfe990, exit_signal=0, stack=0x7f0d6adde000, stack_size=0x20300, tls=0x7f0d6adfe6c0} [pid 6032] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 6044 attached [pid 6037] <... openat resumed>) = 4 [pid 6037] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6035] <... clone3 resumed> => {parent_tid=[32]}, 88) = 32 [pid 6037] <... futex resumed>) = 1 [pid 6035] rt_sigprocmask(SIG_SETMASK, [], [pid 6032] <... futex resumed>) = 0 [pid 6037] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6035] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6032] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6037] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6035] futex(0x7f0d6aef46d8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6032] <... futex resumed>) = 0 [ 102.285290][ T6041] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 102.295211][ T6029] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 102.318859][ T6029] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 102.334448][ T6029] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6037] read(-1, [pid 6035] <... futex resumed>) = 0 [pid 6032] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6037] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 6035] futex(0x7f0d6aef46dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6037] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6033] <... write resumed>) = 524288 [pid 6044] rseq(0x7f0d6adfefe0, 0x20, 0, 0x53053053 [pid 6037] <... futex resumed>) = 1 [pid 6032] <... futex resumed>) = 0 [pid 6044] <... rseq resumed>) = 0 [pid 6039] <... chdir resumed>) = 0 [pid 6037] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6032] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6039] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6037] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6033] munmap(0x7f0d62800000, 138412032 [pid 6032] <... futex resumed>) = 0 [pid 6039] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6037] memfd_create("syzkaller", 0 [pid 6033] <... munmap resumed>) = 0 [pid 6032] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6039] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6037] <... memfd_create resumed>) = 5 [pid 6039] <... futex resumed>) = 1 [pid 6037] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6039] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6037] <... mmap resumed>) = 0x7f0d62800000 [pid 6033] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 6044] set_robust_list(0x7f0d6adfe9a0, 24 [pid 6034] <... futex resumed>) = 0 [pid 6033] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6033] close(5 [pid 6037] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 6033] <... close resumed>) = 0 [pid 6044] <... set_robust_list resumed>) = 0 [pid 6037] <... write resumed>) = 524288 [pid 6034] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6033] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6037] munmap(0x7f0d62800000, 138412032 [pid 6033] <... futex resumed>) = 1 [pid 6031] <... futex resumed>) = 0 [pid 6037] <... munmap resumed>) = 0 [pid 6033] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6031] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6033] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6031] <... futex resumed>) = 0 [pid 6033] fsync(-1 [pid 6031] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6037] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6033] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 6037] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6033] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6037] close(5 [pid 6033] <... futex resumed>) = 1 [pid 6031] <... futex resumed>) = 0 [pid 6044] rt_sigprocmask(SIG_SETMASK, [], [pid 6037] <... close resumed>) = 0 [pid 6034] <... futex resumed>) = 1 [pid 6034] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6033] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6031] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6044] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6039] <... futex resumed>) = 0 [pid 6033] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6031] <... futex resumed>) = 0 [pid 6044] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 6039] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 6033] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6031] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6039] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 6039] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [ 102.346484][ T6029] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 102.358332][ T6029] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 102.371143][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 102.384101][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6039] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6037] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6044] <... openat resumed>) = 6 [pid 6037] <... futex resumed>) = 1 [pid 6035] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6034] <... futex resumed>) = 0 [pid 6033] <... openat resumed>) = 5 [pid 6032] <... futex resumed>) = 0 [pid 6044] futex(0x7f0d6aef46dc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6037] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6035] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6034] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6033] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6032] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6044] <... futex resumed>) = 0 [pid 6039] <... futex resumed>) = 0 [pid 6037] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6036] <... futex resumed>) = 0 [pid 6035] <... futex resumed>) = 1 [pid 6034] <... futex resumed>) = 1 [pid 6033] <... futex resumed>) = 1 [pid 6032] <... futex resumed>) = 0 [pid 6031] <... futex resumed>) = 0 [pid 6044] futex(0x7f0d6aef46d8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6039] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 6037] fsync(-1 [pid 6036] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 6035] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6034] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6033] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6032] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6031] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6039] <... openat resumed>) = 4 [pid 6037] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 6033] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6039] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6033] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 6031] <... futex resumed>) = 0 [pid 6039] <... futex resumed>) = 1 [pid 6034] <... futex resumed>) = 0 [pid 6031] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6039] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6034] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6039] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6034] <... futex resumed>) = 0 [pid 6039] read(-1, [pid 6037] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6034] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6039] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 6037] <... futex resumed>) = 1 [pid 6032] <... futex resumed>) = 0 [pid 6039] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6037] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6032] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6039] <... futex resumed>) = 1 [pid 6037] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6034] <... futex resumed>) = 0 [pid 6032] <... futex resumed>) = 0 [pid 6039] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6037] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6034] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6032] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6039] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6037] <... openat resumed>) = 5 [pid 6034] <... futex resumed>) = 0 [pid 6039] memfd_create("syzkaller", 0 [pid 6037] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6034] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6039] <... memfd_create resumed>) = 5 [pid 6037] <... futex resumed>) = 1 [pid 6032] <... futex resumed>) = 0 [pid 6039] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6037] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 6032] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6039] <... mmap resumed>) = 0x7f0d62800000 [pid 6032] <... futex resumed>) = 0 [pid 6039] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 6032] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6039] <... write resumed>) = 524288 [ 102.397758][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 102.408922][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 102.419792][ T5837] NILFS (loop4): disposed unprocessed dirty file(s) when stopping log writer [ 102.439066][ T6040] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6039] munmap(0x7f0d62800000, 138412032 [pid 6033] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 5837] <... umount2 resumed>) = 0 [pid 6033] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6031] <... futex resumed>) = 0 [pid 6033] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6031] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6033] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6031] <... futex resumed>) = 0 [pid 6033] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 6031] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6039] <... munmap resumed>) = 0 [pid 6037] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 6033] <... openat resumed>) = 6 [pid 5837] umount2("./10/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6039] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6037] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6033] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6039] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6037] <... futex resumed>) = 1 [pid 6033] <... futex resumed>) = 1 [pid 6031] <... futex resumed>) = 0 [pid 5837] newfstatat(AT_FDCWD, "./10/file2", [pid 6039] close(5 [pid 6037] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6035] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6033] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6032] <... futex resumed>) = 0 [pid 6031] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6037] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6033] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6032] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6031] <... futex resumed>) = 0 [pid 6039] <... close resumed>) = 0 [pid 6037] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 6033] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 6032] <... futex resumed>) = 0 [pid 6031] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5837] umount2("./10/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6039] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6039] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5837] openat(AT_FDCWD, "./10/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6037] <... openat resumed>) = 6 [pid 6032] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5837] <... openat resumed>) = 4 [pid 6037] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6034] <... futex resumed>) = 0 [pid 5837] newfstatat(4, "", [pid 6034] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6039] <... futex resumed>) = 0 [pid 6034] <... futex resumed>) = 1 [pid 5837] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 6039] fsync(-1 [pid 6037] <... futex resumed>) = 1 [pid 6032] <... futex resumed>) = 0 [pid 5837] getdents64(4, [pid 6039] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 6039] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] <... getdents64 resumed>0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 6039] <... futex resumed>) = 0 [pid 6039] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5837] getdents64(4, 0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 5837] close(4 [pid 6037] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6034] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6032] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] <... close resumed>) = 0 [pid 5837] rmdir("./10/file2" [pid 6034] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6037] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6034] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6032] <... futex resumed>) = 0 [pid 5837] <... rmdir resumed>) = 0 [pid 5837] getdents64(3, [pid 6039] <... futex resumed>) = 0 [pid 6034] <... futex resumed>) = 1 [pid 5837] <... getdents64 resumed>0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 6039] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 5837] close(3 [ 102.466803][ T6042] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6034] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6039] <... openat resumed>) = 5 [pid 6037] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 6032] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5837] <... close resumed>) = 0 [pid 6039] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] rmdir("./10" [pid 6039] <... futex resumed>) = 1 [pid 6034] <... futex resumed>) = 0 [pid 5837] <... rmdir resumed>) = 0 [pid 6039] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5837] mkdir("./11", 0777 [pid 6034] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6039] <... futex resumed>) = 0 [pid 6034] <... futex resumed>) = 1 [pid 6039] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 6034] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5837] <... mkdir resumed>) = 0 [pid 6039] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 5837] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6039] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] <... openat resumed>) = 3 [pid 6039] <... futex resumed>) = 1 [pid 5837] ioctl(3, LOOP_CLR_FD [pid 6039] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5837] <... ioctl resumed>) = 0 [pid 5837] close(3 [pid 6034] <... futex resumed>) = 0 [pid 6034] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6039] <... futex resumed>) = 0 [pid 6034] <... futex resumed>) = 1 [pid 6039] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 6034] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6031] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6039] <... openat resumed>) = 6 [pid 6039] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6034] <... futex resumed>) = 0 [pid 6039] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6034] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6039] <... futex resumed>) = 0 [pid 6034] <... futex resumed>) = 1 [pid 6039] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [ 102.534225][ T6043] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6034] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6032] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5837] <... close resumed>) = 0 [pid 6034] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5837] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6045 attached [pid 6045] set_robust_list(0x55555fa3c6a0, 24 [pid 5837] <... clone resumed>, child_tidptr=0x55555fa3c690) = 27 [pid 6045] <... set_robust_list resumed>) = 0 [pid 6045] chdir("./11") = 0 [pid 6045] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6045] setpgid(0, 0) = 0 [pid 6045] symlink("/syzcgroup/unified/syz4", "./cgroup") = 0 [pid 6045] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu") = 0 [pid 6045] symlink("/syzcgroup/net/syz4", "./cgroup.net") = 0 [pid 6045] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6045] write(3, "1000", 4) = 4 [pid 6045] close(3) = 0 [pid 6045] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6045] write(1, "executing program\n", 18executing program ) = 18 [pid 6045] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6045] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, NULL, 8) = 0 [pid 6045] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6045] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0d6adff000 [pid 6045] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6045] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6045] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0}./strace-static-x86_64: Process 6046 attached [pid 6046] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 6045] <... clone3 resumed> => {parent_tid=[28]}, 88) = 28 [pid 6046] <... rseq resumed>) = 0 [pid 6045] rt_sigprocmask(SIG_SETMASK, [], [pid 6046] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 6045] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6046] <... set_robust_list resumed>) = 0 [pid 6045] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6046] rt_sigprocmask(SIG_SETMASK, [], [pid 6045] <... futex resumed>) = 0 [pid 6046] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6045] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6046] memfd_create("syzkaller", 0) = 3 [pid 6046] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 [pid 6046] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576 [pid 6046] munmap(0x7f0d62800000, 138412032) = 0 [pid 6046] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6036] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 6046] <... openat resumed>) = 4 [pid 6036] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6046] ioctl(4, LOOP_SET_FD, 3 [pid 6036] <... futex resumed>) = 0 [ 102.693677][ T6041] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6035] close(3) = 0 [pid 6035] close(4) = 0 [pid 6035] close(5) = 0 [pid 6035] close(6) = 0 [pid 6035] close(7) = -1 EBADF (Bad file descriptor) [pid 6035] close(8) = -1 EBADF (Bad file descriptor) [pid 6035] close(9) = -1 EBADF (Bad file descriptor) [pid 6035] close(10) = -1 EBADF (Bad file descriptor) [pid 6035] close(11) = -1 EBADF (Bad file descriptor) [pid 6035] close(12) = -1 EBADF (Bad file descriptor) [pid 6035] close(13) = -1 EBADF (Bad file descriptor) [pid 6035] close(14) = -1 EBADF (Bad file descriptor) [pid 6036] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6035] close(15) = -1 EBADF (Bad file descriptor) [pid 6035] close(16) = -1 EBADF (Bad file descriptor) [pid 6035] close(17) = -1 EBADF (Bad file descriptor) [pid 6035] close(18 [pid 6046] <... ioctl resumed>) = 0 [pid 6035] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6046] close(3 [pid 6035] close(19 [pid 6046] <... close resumed>) = 0 [pid 6035] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6035] close(20) = -1 EBADF (Bad file descriptor) [pid 6035] close(21) = -1 EBADF (Bad file descriptor) [pid 6035] close(22 [pid 6046] close(4 [pid 6035] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6035] close(23 [pid 6046] <... close resumed>) = 0 [pid 6035] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6035] close(24) = -1 EBADF (Bad file descriptor) [pid 6035] close(25) = -1 EBADF (Bad file descriptor) [pid 6046] mkdir("./file2", 0777 [pid 6035] close(26 [pid 6046] <... mkdir resumed>) = 0 [pid 6035] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6046] mount("/dev/loop4", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 6035] close(27) = -1 EBADF (Bad file descriptor) [pid 6035] close(28) = -1 EBADF (Bad file descriptor) [pid 6035] close(29) = -1 EBADF (Bad file descriptor) [pid 6035] exit_group(0 [pid 6044] <... futex resumed>) = ? [pid 6035] <... exit_group resumed>) = ? [pid 6044] +++ exited with 0 +++ [pid 6036] <... futex resumed>) = ? [pid 6036] +++ exited with 0 +++ [pid 6035] +++ exited with 0 +++ [pid 5834] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=30, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5834] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5834] umount2("./11", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5834] openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5834] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [ 102.750996][ T6046] loop4: detected capacity change from 0 to 2048 [ 102.786229][ T6046] NILFS (loop4): broken superblock, retrying with spare superblock (blocksize = 1024) [pid 5834] getdents64(3, [pid 6046] <... mount resumed>) = 0 [pid 5834] <... getdents64 resumed>0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 6046] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY) = 3 [pid 5834] umount2("./11/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6046] chdir("./file2" [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6046] <... chdir resumed>) = 0 [pid 5834] newfstatat(AT_FDCWD, "./11/cgroup", [pid 6046] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5834] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6046] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5834] unlink("./11/cgroup" [pid 6046] <... futex resumed>) = 1 [pid 6046] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5834] <... unlink resumed>) = 0 [pid 5834] umount2("./11/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6045] <... futex resumed>) = 0 [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6045] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6045] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5834] newfstatat(AT_FDCWD, "./11/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5834] unlink("./11/cgroup.cpu" [pid 6046] <... futex resumed>) = 0 [pid 6037] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 5834] <... unlink resumed>) = 0 [pid 6046] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 6037] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6046] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 6037] <... futex resumed>) = 0 [pid 5834] umount2("./11/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6037] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 102.842523][ T6047] NILFS (loop4): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 102.865776][ T6042] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6046] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6032] close(3 [pid 5834] newfstatat(AT_FDCWD, "./11/cgroup.net", [pid 6046] <... futex resumed>) = 1 [pid 6045] <... futex resumed>) = 0 [pid 6033] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 5834] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6046] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6045] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6033] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6031] close(3 [pid 5834] unlink("./11/cgroup.net" [pid 6046] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6045] <... futex resumed>) = 0 [pid 6033] <... futex resumed>) = 0 [pid 6031] <... close resumed>) = 0 [pid 5834] <... unlink resumed>) = 0 [pid 6046] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 6045] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6033] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6031] close(4 [pid 5834] umount2("./11/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6046] <... openat resumed>) = 4 [pid 6032] <... close resumed>) = 0 [pid 6031] <... close resumed>) = 0 [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6039] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 6032] close(4 [pid 5834] newfstatat(AT_FDCWD, "./11/binderfs", [pid 6039] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6032] <... close resumed>) = 0 [pid 6039] <... futex resumed>) = 0 [pid 6032] close(5 [pid 6031] close(5 [pid 6039] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6032] <... close resumed>) = 0 [pid 5834] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6046] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6032] close(6 [pid 6031] <... close resumed>) = 0 [pid 6032] <... close resumed>) = 0 [pid 6031] close(6 [pid 5834] unlink("./11/binderfs" [pid 6046] <... futex resumed>) = 1 [pid 6045] <... futex resumed>) = 0 [pid 6032] close(7 [pid 6031] <... close resumed>) = 0 [pid 6046] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6045] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6034] close(3 [pid 6032] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6046] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6045] <... futex resumed>) = 0 [pid 6032] close(8 [pid 6031] close(7 [pid 5834] <... unlink resumed>) = 0 [pid 6045] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6032] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6046] read(-1, [pid 6032] close(9 [pid 6031] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5834] umount2("./11/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6034] <... close resumed>) = 0 [pid 6046] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 6032] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6034] close(4 [pid 6031] close(8 [pid 6046] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6032] close(10 [pid 6046] <... futex resumed>) = 1 [pid 6045] <... futex resumed>) = 0 [pid 6034] <... close resumed>) = 0 [pid 6032] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6031] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6046] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6045] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6046] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6045] <... futex resumed>) = 0 [pid 6034] close(5 [pid 6032] close(11 [pid 6031] close(9 [pid 6046] memfd_create("syzkaller", 0 [pid 6045] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6034] <... close resumed>) = 0 [pid 6032] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6031] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6034] close(6 [pid 6032] close(12 [pid 6034] <... close resumed>) = 0 [pid 6032] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6034] close(7 [pid 6032] close(13 [pid 6034] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6032] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6034] close(8 [pid 6032] close(14 [pid 6034] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6032] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6034] close(9 [pid 6032] close(15 [pid 6034] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6032] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6034] close(10 [pid 6032] close(16 [pid 6034] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6032] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6034] close(11 [pid 6032] close(17 [pid 6034] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6032] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6034] close(12 [pid 6032] close(18 [pid 6034] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6032] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6034] close(13 [pid 6032] close(19 [pid 6034] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6032] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6034] close(14 [pid 6032] close(20 [pid 6034] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6032] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6034] close(15 [pid 6032] close(21) = -1 EBADF (Bad file descriptor) [pid 6034] <... close resumed>) = -1 EBADF (Bad file descriptor) [ 102.888606][ T6040] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 102.891445][ T6043] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 102.919301][ T6041] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6032] close(22 [pid 6034] close(16 [pid 6032] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6032] close(23 [pid 6046] <... memfd_create resumed>) = 5 [pid 6032] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6031] close(10 [pid 6046] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6034] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6032] close(24 [pid 6046] <... mmap resumed>) = 0x7f0d62800000 [pid 6034] close(17 [pid 6032] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6031] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6034] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6032] close(25 [pid 6034] close(18 [pid 6032] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6034] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6032] close(26 [pid 6034] close(19 [pid 6032] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6034] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6032] close(27 [pid 6034] close(20 [pid 6032] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6031] close(11 [pid 6034] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6032] close(28 [pid 6034] close(21 [pid 6032] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6034] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6032] close(29 [pid 6034] close(22 [pid 6032] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6034] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6032] exit_group(0 [pid 6046] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 6034] close(23 [pid 6032] <... exit_group resumed>) = ? [pid 6031] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6037] <... futex resumed>) = ? [pid 6034] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6031] close(12 [pid 6034] close(24 [pid 6031] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6034] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6034] close(25 [pid 6031] close(13 [pid 6034] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6034] close(26) = -1 EBADF (Bad file descriptor) [pid 6034] close(27) = -1 EBADF (Bad file descriptor) [pid 6034] close(28) = -1 EBADF (Bad file descriptor) [pid 6034] close(29) = -1 EBADF (Bad file descriptor) [pid 6034] exit_group(0) = ? [pid 6046] <... write resumed>) = 524288 [pid 6039] <... futex resumed>) = ? [pid 6037] +++ exited with 0 +++ [pid 6032] +++ exited with 0 +++ [pid 6031] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6046] munmap(0x7f0d62800000, 138412032) = 0 [pid 6046] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6039] +++ exited with 0 +++ [pid 6034] +++ exited with 0 +++ [pid 6031] close(14 [pid 5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=32, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 6046] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6046] close(5 [pid 6031] <... close resumed>) = -1 EBADF (Bad file descriptor) [ 102.933205][ T6041] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 102.954162][ T6041] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 102.966642][ T6041] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 102.978771][ T6041] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6046] <... close resumed>) = 0 [pid 6031] close(15 [pid 6046] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5835] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=25, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 5833] umount2("./11", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6046] <... futex resumed>) = 1 [pid 6045] <... futex resumed>) = 0 [pid 6031] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5835] umount2("./10", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6046] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6045] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6031] close(16 [pid 6045] <... futex resumed>) = 0 [pid 6045] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5833] openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [ 102.992303][ T6041] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 103.005202][ T6041] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 103.018031][ T6041] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 103.029910][ T6041] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5833] newfstatat(3, "", [pid 6046] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6031] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6046] fsync(-1 [pid 6031] close(17 [pid 5835] openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6046] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 6046] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6031] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5835] <... openat resumed>) = 3 [pid 5833] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 6046] <... futex resumed>) = 1 [pid 6045] <... futex resumed>) = 0 [pid 6031] close(18 [pid 5835] newfstatat(3, "", [pid 6031] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5833] getdents64(3, [pid 6031] close(19 [pid 5835] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 6031] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5833] <... getdents64 resumed>0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 6031] close(20 [pid 5833] umount2("./11/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6031] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6031] close(21 [pid 5833] newfstatat(AT_FDCWD, "./11/cgroup", [pid 6031] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5833] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6031] close(22 [pid 5833] unlink("./11/cgroup" [pid 6031] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5833] <... unlink resumed>) = 0 [pid 6031] close(23 [pid 6046] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6045] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6031] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6046] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6045] <... futex resumed>) = 0 [pid 6031] close(24 [pid 5833] umount2("./11/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6046] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6045] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6031] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5835] getdents64(3, [pid 6031] close(25 [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6031] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5833] newfstatat(AT_FDCWD, "./11/cgroup.cpu", [pid 6031] close(26 [pid 6046] <... openat resumed>) = 5 [pid 6031] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5835] <... getdents64 resumed>0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 5833] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6046] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6031] close(27 [pid 5835] umount2("./10/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5833] unlink("./11/cgroup.cpu" [pid 6046] <... futex resumed>) = 1 [pid 6045] <... futex resumed>) = 0 [pid 6031] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6046] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6045] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6031] close(28 [pid 5833] <... unlink resumed>) = 0 [pid 6046] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6045] <... futex resumed>) = 0 [pid 6031] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5835] newfstatat(AT_FDCWD, "./10/cgroup", [pid 5833] umount2("./11/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6046] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 6045] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6031] close(29 [pid 5835] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6031] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5835] unlink("./10/cgroup" [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6031] exit_group(0 [pid 5835] <... unlink resumed>) = 0 [pid 5833] newfstatat(AT_FDCWD, "./11/cgroup.net", [pid 6033] <... futex resumed>) = ? [pid 6031] <... exit_group resumed>) = ? [pid 5835] umount2("./10/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5833] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6033] +++ exited with 0 +++ [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 103.041390][ T6041] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 103.058403][ T6041] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 103.069719][ T6041] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 103.081769][ T6041] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5835] newfstatat(AT_FDCWD, "./10/cgroup.cpu", [pid 6031] +++ exited with 0 +++ [pid 5833] unlink("./11/cgroup.net" [pid 6046] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 5836] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=27, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=27 /* 0.27 s */} --- [pid 5835] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] <... unlink resumed>) = 0 [pid 6046] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5835] unlink("./10/cgroup.cpu" [pid 5833] umount2("./11/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6046] <... futex resumed>) = 1 [pid 6045] <... futex resumed>) = 0 [pid 5835] <... unlink resumed>) = 0 [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6046] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6045] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5836] umount2("./10", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5835] umount2("./10/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5833] newfstatat(AT_FDCWD, "./11/binderfs", [pid 6046] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6045] <... futex resumed>) = 0 [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5833] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6046] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 6045] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5836] openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5835] newfstatat(AT_FDCWD, "./10/cgroup.net", [pid 5833] unlink("./11/binderfs" [pid 6046] <... openat resumed>) = 6 [pid 5836] <... openat resumed>) = 3 [pid 5835] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] <... unlink resumed>) = 0 [pid 6046] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5836] newfstatat(3, "", [pid 5835] unlink("./10/cgroup.net" [pid 5833] umount2("./11/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6046] <... futex resumed>) = 1 [pid 6045] <... futex resumed>) = 0 [pid 5836] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 5835] <... unlink resumed>) = 0 [ 103.094678][ T6041] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 103.095456][ T6047] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 103.107937][ T6041] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 103.129682][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6046] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6045] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5836] getdents64(3, [pid 5835] umount2("./10/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6046] <... futex resumed>) = 0 [pid 6045] <... futex resumed>) = 1 [pid 6046] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 6045] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5836] <... getdents64 resumed>0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5836] umount2("./10/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5835] newfstatat(AT_FDCWD, "./10/binderfs", [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5835] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5836] newfstatat(AT_FDCWD, "./10/cgroup", [pid 5835] unlink("./10/binderfs" [pid 5836] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5835] <... unlink resumed>) = 0 [pid 5836] unlink("./10/cgroup" [pid 5835] umount2("./10/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5836] <... unlink resumed>) = 0 [pid 5836] umount2("./10/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5836] newfstatat(AT_FDCWD, "./10/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [ 103.141856][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 103.142787][ T6042] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 103.153578][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 103.174440][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 103.185155][ T5834] NILFS (loop1): disposed unprocessed dirty file(s) when stopping log writer [pid 5836] unlink("./10/cgroup.cpu") = 0 [pid 5836] umount2("./10/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5836] newfstatat(AT_FDCWD, "./10/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5836] unlink("./10/cgroup.net") = 0 [pid 5836] umount2("./10/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5836] newfstatat(AT_FDCWD, "./10/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5836] unlink("./10/binderfs") = 0 [ 103.186899][ T6042] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 103.215034][ T6043] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 103.227421][ T6040] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5836] umount2("./10/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6045] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5834] <... umount2 resumed>) = 0 [pid 5834] umount2("./11/file2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5834] newfstatat(AT_FDCWD, "./11/file2", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5834] umount2("./11/file2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5834] openat(AT_FDCWD, "./11/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5834] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 5834] getdents64(4, 0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 5834] getdents64(4, 0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 5834] close(4) = 0 [pid 5834] rmdir("./11/file2") = 0 [pid 5834] getdents64(3, 0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 5834] close(3) = 0 [pid 5834] rmdir("./11") = 0 [pid 5834] mkdir("./12", 0777) = 0 [pid 5834] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5834] ioctl(3, LOOP_CLR_FD) = 0 [pid 5834] close(3) = 0 [ 103.227988][ T6043] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 103.260483][ T6040] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 103.260494][ T6042] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 103.264784][ T6043] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5834] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6048 attached [pid 6048] set_robust_list(0x55555fa3c6a0, 24) = 0 [pid 5834] <... clone resumed>, child_tidptr=0x55555fa3c690) = 33 [pid 6048] chdir("./12") = 0 [pid 6048] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6048] setpgid(0, 0) = 0 [ 103.294098][ T6042] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 103.296485][ T6040] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 103.308717][ T6043] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 103.327776][ T6042] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6048] symlink("/syzcgroup/unified/syz1", "./cgroup") = 0 [pid 6048] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu") = 0 [pid 6048] symlink("/syzcgroup/net/syz1", "./cgroup.net") = 0 [pid 6048] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6048] write(3, "1000", 4) = 4 [pid 6048] close(3) = 0 [pid 6048] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 6048] write(1, "executing program\n", 18) = 18 [pid 6048] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6048] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, NULL, 8) = 0 [pid 6048] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6048] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0d6adff000 [pid 6048] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6048] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6048] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0} => {parent_tid=[34]}, 88) = 34 [pid 6048] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6048] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 103.341004][ T6042] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 103.353033][ T6042] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 103.367088][ T6042] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 103.374122][ T6040] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6048] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 6049 attached [ 103.380852][ T6043] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 103.401823][ T6042] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 103.409963][ T6040] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 103.413360][ T6042] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6049] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053) = 0 [pid 6049] set_robust_list(0x7f0d6ae1f9a0, 24) = 0 [ 103.438227][ T6043] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 103.439762][ T6040] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 103.449144][ T6043] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 103.475255][ T6042] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6049] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [ 103.484307][ T6040] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 103.487449][ T6042] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 103.509153][ T6040] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 103.511057][ T6047] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 103.523308][ T6040] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6049] memfd_create("syzkaller", 0) = 3 [pid 6049] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 [pid 6049] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6046] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 6046] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6045] close(3 [pid 6046] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6045] <... close resumed>) = 0 [pid 6045] close(4) = 0 [pid 6045] close(5) = 0 [pid 6045] close(6) = 0 [pid 6045] close(7) = -1 EBADF (Bad file descriptor) [pid 6045] close(8) = -1 EBADF (Bad file descriptor) [pid 6045] close(9) = -1 EBADF (Bad file descriptor) [pid 6045] close(10) = -1 EBADF (Bad file descriptor) [pid 6045] close(11) = -1 EBADF (Bad file descriptor) [pid 6045] close(12) = -1 EBADF (Bad file descriptor) [pid 6045] close(13) = -1 EBADF (Bad file descriptor) [pid 6045] close(14) = -1 EBADF (Bad file descriptor) [pid 6045] close(15) = -1 EBADF (Bad file descriptor) [pid 6045] close(16) = -1 EBADF (Bad file descriptor) [pid 6045] close(17) = -1 EBADF (Bad file descriptor) [pid 6045] close(18) = -1 EBADF (Bad file descriptor) [pid 6045] close(19) = -1 EBADF (Bad file descriptor) [pid 6045] close(20) = -1 EBADF (Bad file descriptor) [pid 6045] close(21) = -1 EBADF (Bad file descriptor) [pid 6045] close(22 [pid 6049] <... write resumed>) = 1048576 [pid 6045] <... close resumed>) = -1 EBADF (Bad file descriptor) [ 103.533989][ T6043] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 103.557987][ T6042] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 103.569968][ T6043] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 103.582779][ T6042] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6045] close(23) = -1 EBADF (Bad file descriptor) [pid 6045] close(24) = -1 EBADF (Bad file descriptor) [pid 6045] close(25) = -1 EBADF (Bad file descriptor) [pid 6045] close(26) = -1 EBADF (Bad file descriptor) [pid 6045] close(27) = -1 EBADF (Bad file descriptor) [pid 6045] close(28 [pid 6049] munmap(0x7f0d62800000, 138412032 [pid 6045] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6049] <... munmap resumed>) = 0 [pid 6045] close(29) = -1 EBADF (Bad file descriptor) [pid 6045] exit_group(0 [pid 6046] <... futex resumed>) = ? [pid 6045] <... exit_group resumed>) = ? [pid 6046] +++ exited with 0 +++ [pid 6045] +++ exited with 0 +++ [pid 6049] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5837] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=27, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 5837] restart_syscall(<... resuming interrupted clone ...> [pid 6049] ioctl(4, LOOP_SET_FD, 3 [pid 5837] <... restart_syscall resumed>) = 0 [pid 5837] umount2("./11", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5837] openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5837] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 5837] getdents64(3, 0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 5837] umount2("./11/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5837] newfstatat(AT_FDCWD, "./11/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5837] unlink("./11/cgroup") = 0 [pid 5837] umount2("./11/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5837] newfstatat(AT_FDCWD, "./11/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5837] unlink("./11/cgroup.cpu") = 0 [pid 5837] umount2("./11/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5837] newfstatat(AT_FDCWD, "./11/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5837] unlink("./11/cgroup.net") = 0 [pid 5837] umount2("./11/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5837] newfstatat(AT_FDCWD, "./11/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5837] unlink("./11/binderfs") = 0 [pid 5837] umount2("./11/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6049] <... ioctl resumed>) = 0 [ 103.589608][ T6040] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 103.595429][ T6043] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 103.615065][ T6049] loop1: detected capacity change from 0 to 2048 [ 103.617711][ T6042] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6049] close(3) = 0 [pid 6049] close(4) = 0 [pid 6049] mkdir("./file2", 0777) = 0 [ 103.641167][ T6047] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 103.653134][ T6043] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 103.653806][ T6040] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 103.665695][ T6047] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 103.678806][ T6040] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 103.695415][ T5833] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 103.700065][ T6049] NILFS (loop1): broken superblock, retrying with spare superblock (blocksize = 1024) [ 103.720127][ T6040] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 103.723841][ T5838] udevd[5838]: incorrect nilfs2 checksum on /dev/loop1 [ 103.733864][ T6040] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 103.754282][ T6047] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 103.754647][ T6043] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 103.765802][ T6047] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 103.786759][ T5833] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6049] mount("/dev/loop1", "./file2", "nilfs2", MS_SYNCHRONOUS, "") = 0 [ 103.787149][ T6043] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 103.798588][ T6050] NILFS (loop1): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 103.808530][ T6043] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 103.820418][ T5833] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6049] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY) = 3 [ 103.833380][ T6043] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 103.842877][ T6047] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 103.852754][ T6040] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 103.864505][ T5835] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 103.875096][ T5833] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6049] chdir("./file2") = 0 [pid 6049] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6049] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6048] <... futex resumed>) = 0 [pid 6049] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6048] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6049] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6048] <... futex resumed>) = 0 [pid 6049] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 6048] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6049] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 6049] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6048] <... futex resumed>) = 0 [pid 6049] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6048] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6049] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6048] <... futex resumed>) = 0 [pid 6049] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 6048] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6049] <... openat resumed>) = 4 [pid 6049] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6048] <... futex resumed>) = 0 [ 103.885581][ T6047] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 103.896114][ T5833] NILFS (loop0): disposed unprocessed dirty file(s) when stopping log writer [ 103.906666][ T5836] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 103.935350][ T5835] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 103.946275][ T5836] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 103.957715][ T5836] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 103.958281][ T5835] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 103.968662][ T5836] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6049] read(-1, [pid 6048] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5833] <... umount2 resumed>) = 0 [pid 6049] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 6048] <... futex resumed>) = 0 [pid 6049] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6048] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6049] <... futex resumed>) = 0 [pid 6048] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6049] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6048] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6049] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6048] <... futex resumed>) = 0 [pid 6049] memfd_create("syzkaller", 0 [pid 6048] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6049] <... memfd_create resumed>) = 5 [pid 6049] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 [pid 6049] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5833] umount2("./11/file2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5836] <... umount2 resumed>) = 0 [pid 5833] newfstatat(AT_FDCWD, "./11/file2", [pid 5836] umount2("./10/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6049] <... write resumed>) = 524288 [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5833] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [ 103.979813][ T6047] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 103.990284][ T5836] NILFS (loop2): disposed unprocessed dirty file(s) when stopping log writer [ 104.000945][ T6047] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 104.032351][ T5835] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6049] munmap(0x7f0d62800000, 138412032 [pid 5836] newfstatat(AT_FDCWD, "./10/file2", [pid 5833] umount2("./11/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6049] <... munmap resumed>) = 0 [pid 5836] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5836] umount2("./10/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6049] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5833] openat(AT_FDCWD, "./11/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5836] openat(AT_FDCWD, "./10/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6049] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5836] <... openat resumed>) = 4 [pid 5833] <... openat resumed>) = 4 [ 104.039607][ T6047] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 104.043267][ T5835] NILFS (loop3): disposed unprocessed dirty file(s) when stopping log writer [ 104.057062][ T6047] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 104.074775][ T6047] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 104.088241][ T6047] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6049] close(5 [pid 5836] newfstatat(4, "", [pid 5835] <... umount2 resumed>) = 0 [pid 5833] newfstatat(4, "", [pid 5836] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 5835] umount2("./10/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5836] getdents64(4, [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5833] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 5836] <... getdents64 resumed>0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 5835] newfstatat(AT_FDCWD, "./10/file2", [pid 5836] getdents64(4, [pid 5833] getdents64(4, [pid 5836] <... getdents64 resumed>0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 5835] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] <... getdents64 resumed>0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 5836] close(4) = 0 [pid 5835] umount2("./10/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5833] getdents64(4, [pid 5836] rmdir("./10/file2" [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5836] <... rmdir resumed>) = 0 [pid 5833] <... getdents64 resumed>0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 5836] getdents64(3, [pid 5835] openat(AT_FDCWD, "./10/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5833] close(4 [pid 5836] <... getdents64 resumed>0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 5835] <... openat resumed>) = 4 [pid 5836] close(3 [pid 5833] <... close resumed>) = 0 [pid 5836] <... close resumed>) = 0 [pid 5835] newfstatat(4, "", [pid 5833] rmdir("./11/file2" [pid 5836] rmdir("./10" [pid 5835] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 5833] <... rmdir resumed>) = 0 [pid 5836] <... rmdir resumed>) = 0 [pid 5835] getdents64(4, [pid 5833] getdents64(3, [pid 5836] mkdir("./11", 0777) = 0 [pid 5835] <... getdents64 resumed>0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 5833] <... getdents64 resumed>0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 5836] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5835] getdents64(4, [pid 5833] close(3 [pid 5836] <... openat resumed>) = 3 [pid 5835] <... getdents64 resumed>0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 5836] ioctl(3, LOOP_CLR_FD [pid 5835] close(4 [pid 5833] <... close resumed>) = 0 [pid 5836] <... ioctl resumed>) = 0 [pid 5835] <... close resumed>) = 0 [pid 5833] rmdir("./11" [pid 5836] close(3 [pid 6049] <... close resumed>) = 0 [pid 5836] <... close resumed>) = 0 [pid 5833] <... rmdir resumed>) = 0 [pid 5836] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5835] rmdir("./10/file2") = 0 [pid 5836] <... clone resumed>, child_tidptr=0x55555fa3c690) = 29 [pid 5835] getdents64(3, 0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 5835] close(3) = 0 [pid 5835] rmdir("./10") = 0 [pid 5835] mkdir("./11", 0777) = 0 [pid 5835] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5835] ioctl(3, LOOP_CLR_FD) = 0 [pid 5835] close(3./strace-static-x86_64: Process 6051 attached ) = 0 [ 104.100768][ T6047] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 104.123568][ T6047] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 104.135941][ T6047] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 104.148679][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 104.159782][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 104.171163][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 104.184116][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6049] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5835] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6049] <... futex resumed>) = 1 [pid 6049] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5835] <... clone resumed>, child_tidptr=0x55555fa3c690) = 27 [pid 6051] set_robust_list(0x55555fa3c6a0, 24 [pid 6048] <... futex resumed>) = 0 [pid 6048] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6051] <... set_robust_list resumed>) = 0 [pid 6049] <... futex resumed>) = 0 [pid 6048] <... futex resumed>) = 1 [pid 6049] fsync(-1 [pid 6051] chdir("./11" [pid 6049] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 6049] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6049] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6048] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6051] <... chdir resumed>) = 0 [pid 6048] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6051] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6048] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5833] mkdir("./12", 0777 [pid 6049] <... futex resumed>) = 0 [pid 6051] <... prctl resumed>) = 0 [pid 6048] <... futex resumed>) = 1 [pid 6049] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6048] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6051] setpgid(0, 0 [pid 5833] <... mkdir resumed>) = 0 [pid 5833] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5833] ioctl(3, LOOP_CLR_FD) = 0 [pid 5833] close(3 [pid 6051] <... setpgid resumed>) = 0 [pid 6051] symlink("/syzcgroup/unified/syz2", "./cgroup") = 0 [pid 5833] <... close resumed>) = 0 [pid 6051] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 6049] <... openat resumed>) = 5 [pid 6049] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6048] <... futex resumed>) = 0 [pid 6049] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6051] <... symlink resumed>) = 0 [pid 6049] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6048] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6051] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 6049] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 6048] <... futex resumed>) = 0 [pid 6051] <... symlink resumed>) = 0 [pid 6048] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6051] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6051] write(3, "1000", 4) = 4 [ 104.195203][ T5837] NILFS (loop4): disposed unprocessed dirty file(s) when stopping log writer [pid 6051] close(3) = 0 [pid 6051] symlink("/dev/binderfs", "./binderfs" [pid 5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6053 attached [pid 6053] set_robust_list(0x55555fa3c6a0, 24./strace-static-x86_64: Process 6052 attached [pid 6051] <... symlink resumed>) = 0 executing program [pid 5833] <... clone resumed>, child_tidptr=0x55555fa3c690) = 34 [pid 6051] write(1, "executing program\n", 18 [pid 6052] set_robust_list(0x55555fa3c6a0, 24 [pid 6051] <... write resumed>) = 18 [pid 6051] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6052] <... set_robust_list resumed>) = 0 [pid 6051] <... futex resumed>) = 0 [pid 6053] <... set_robust_list resumed>) = 0 [pid 6051] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, [pid 6053] chdir("./12" [pid 6052] chdir("./11" [pid 6051] <... rt_sigaction resumed>NULL, 8) = 0 [pid 6053] <... chdir resumed>) = 0 [pid 6051] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 6053] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6051] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6053] <... prctl resumed>) = 0 [pid 6051] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6053] setpgid(0, 0) = 0 [pid 6051] <... mmap resumed>) = 0x7f0d6adff000 [pid 6053] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 6052] <... chdir resumed>) = 0 [pid 6051] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE [pid 6052] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6051] <... mprotect resumed>) = 0 [pid 6049] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 6053] <... symlink resumed>) = 0 [pid 6049] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6051] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6052] <... prctl resumed>) = 0 [pid 6049] <... futex resumed>) = 1 [pid 6048] <... futex resumed>) = 0 [pid 6051] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6052] setpgid(0, 0 [pid 6051] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0} [pid 6049] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6048] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 6054 attached [pid 6053] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 6052] <... setpgid resumed>) = 0 [pid 6049] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6048] <... futex resumed>) = 0 [pid 6054] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 6053] <... symlink resumed>) = 0 [pid 6051] <... clone3 resumed> => {parent_tid=[30]}, 88) = 30 [pid 6053] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [ 104.223484][ T6050] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 executing program [pid 6054] <... rseq resumed>) = 0 [pid 6052] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 6051] rt_sigprocmask(SIG_SETMASK, [], [pid 6049] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 6048] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5837] <... umount2 resumed>) = 0 [pid 6054] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 6051] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6054] <... set_robust_list resumed>) = 0 [pid 6053] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6051] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6054] rt_sigprocmask(SIG_SETMASK, [], [pid 6053] <... openat resumed>) = 3 [pid 6052] <... symlink resumed>) = 0 [pid 6051] <... futex resumed>) = 0 [pid 6049] <... openat resumed>) = 6 [pid 5837] umount2("./11/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6054] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6053] write(3, "1000", 4 [pid 6052] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 6051] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6049] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6054] memfd_create("syzkaller", 0 [pid 6049] <... futex resumed>) = 1 [pid 6048] <... futex resumed>) = 0 [pid 6049] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5837] newfstatat(AT_FDCWD, "./11/file2", [pid 6054] <... memfd_create resumed>) = 3 [pid 6048] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6049] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5837] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6054] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6049] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 6048] <... futex resumed>) = 0 [pid 5837] umount2("./11/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6053] <... write resumed>) = 4 [pid 6053] close(3) = 0 [pid 6053] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6053] write(1, "executing program\n", 18) = 18 [pid 6053] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6053] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, NULL, 8) = 0 [pid 6053] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6053] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0d6adff000 [pid 6053] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6053] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6053] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0}./strace-static-x86_64: Process 6055 attached [pid 6055] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 6053] <... clone3 resumed> => {parent_tid=[35]}, 88) = 35 [pid 6055] <... rseq resumed>) = 0 [pid 6053] rt_sigprocmask(SIG_SETMASK, [], [pid 6055] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 6053] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6055] <... set_robust_list resumed>) = 0 [pid 6053] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6048] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6055] rt_sigprocmask(SIG_SETMASK, [], [pid 6053] <... futex resumed>) = 0 [pid 5837] openat(AT_FDCWD, "./11/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6055] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6053] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6055] memfd_create("syzkaller", 0) = 3 [pid 6055] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 [pid 5837] <... openat resumed>) = 4 [pid 6052] <... symlink resumed>) = 0 [pid 5837] newfstatat(4, "", [pid 6054] <... mmap resumed>) = 0x7f0d62800000 [pid 6052] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5837] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 6055] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6054] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6052] <... symlink resumed>) = 0 [pid 5837] getdents64(4, 0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 5837] getdents64(4, 0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 5837] close(4) = 0 [pid 5837] rmdir("./11/file2") = 0 [pid 5837] getdents64(3, [pid 6052] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5837] <... getdents64 resumed>0x55555fa3d730 /* 0 entries */, 32768) = 0 executing program [pid 6052] <... openat resumed>) = 3 [pid 5837] close(3 [pid 6052] write(3, "1000", 4 [pid 5837] <... close resumed>) = 0 [pid 6052] <... write resumed>) = 4 [pid 5837] rmdir("./11" [pid 6052] close(3 [pid 5837] <... rmdir resumed>) = 0 [pid 6052] <... close resumed>) = 0 [pid 5837] mkdir("./12", 0777 [pid 6052] symlink("/dev/binderfs", "./binderfs" [pid 5837] <... mkdir resumed>) = 0 [pid 6052] <... symlink resumed>) = 0 [pid 5837] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6052] write(1, "executing program\n", 18 [pid 5837] <... openat resumed>) = 3 [pid 6052] <... write resumed>) = 18 [pid 5837] ioctl(3, LOOP_CLR_FD [pid 6052] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] <... ioctl resumed>) = 0 [pid 6052] <... futex resumed>) = 0 [pid 5837] close(3 [pid 6052] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, [pid 6048] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5837] <... close resumed>) = 0 [pid 6052] <... rt_sigaction resumed>NULL, 8) = 0 [pid 6052] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6052] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0d6adff000 [pid 5837] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6056 attached [pid 6056] set_robust_list(0x55555fa3c6a0, 24 [pid 6055] <... write resumed>) = 1048576 [pid 6054] <... write resumed>) = 1048576 [pid 6052] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE [pid 6056] <... set_robust_list resumed>) = 0 [pid 6055] munmap(0x7f0d62800000, 138412032 [pid 6052] <... mprotect resumed>) = 0 [pid 6056] chdir("./12" [pid 6052] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5837] <... clone resumed>, child_tidptr=0x55555fa3c690) = 29 [pid 6052] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6056] <... chdir resumed>) = 0 [pid 6055] <... munmap resumed>) = 0 [pid 6052] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0}./strace-static-x86_64: Process 6057 attached [pid 6056] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6055] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6056] <... prctl resumed>) = 0 [pid 6057] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 6054] munmap(0x7f0d62800000, 138412032 [pid 6056] setpgid(0, 0 [pid 6052] <... clone3 resumed> => {parent_tid=[28]}, 88) = 28 [pid 6057] <... rseq resumed>) = 0 [pid 6056] <... setpgid resumed>) = 0 [pid 6055] <... openat resumed>) = 4 [pid 6052] rt_sigprocmask(SIG_SETMASK, [], [pid 6057] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 6054] <... munmap resumed>) = 0 [pid 6052] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6057] <... set_robust_list resumed>) = 0 [pid 6056] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 6055] ioctl(4, LOOP_SET_FD, 3 [pid 6054] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 6052] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6057] rt_sigprocmask(SIG_SETMASK, [], [pid 6054] <... openat resumed>) = 4 [pid 6052] <... futex resumed>) = 0 [pid 6057] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6054] ioctl(4, LOOP_SET_FD, 3 [pid 6052] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6057] memfd_create("syzkaller", 0 [pid 6056] <... symlink resumed>) = 0 [pid 6057] <... memfd_create resumed>) = 3 [pid 6057] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 [pid 6056] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 6057] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6056] <... symlink resumed>) = 0 [pid 6055] <... ioctl resumed>) = 0 [pid 6054] <... ioctl resumed>) = 0 [pid 6056] symlink("/syzcgroup/net/syz4", "./cgroup.net") = 0 [pid 6056] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6054] close(3 [pid 6056] <... openat resumed>) = 3 [pid 6054] <... close resumed>) = 0 [pid 6055] close(3 [pid 6054] close(4 [pid 6056] write(3, "1000", 4 [pid 6054] <... close resumed>) = 0 [pid 6056] <... write resumed>) = 4 [pid 6056] close(3) = 0 [pid 6056] symlink("/dev/binderfs", "./binderfs" [pid 6055] <... close resumed>) = 0 [pid 6055] close(4 [pid 6054] mkdir("./file2", 0777 [pid 6056] <... symlink resumed>) = 0 [pid 6054] <... mkdir resumed>) = 0 [pid 6056] write(1, "executing program\n", 18executing program ) = 18 [pid 6056] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6056] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, [pid 6055] <... close resumed>) = 0 [ 104.363732][ T6055] loop0: detected capacity change from 0 to 2048 [ 104.365566][ T6054] loop2: detected capacity change from 0 to 2048 [pid 6054] mount("/dev/loop2", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 6056] <... rt_sigaction resumed>NULL, 8) = 0 [pid 6056] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6056] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0d6adff000 [pid 6057] <... write resumed>) = 1048576 [pid 6056] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE [pid 6055] mkdir("./file2", 0777 [pid 6057] munmap(0x7f0d62800000, 138412032 [pid 6056] <... mprotect resumed>) = 0 [pid 6057] <... munmap resumed>) = 0 [pid 6056] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6055] <... mkdir resumed>) = 0 [pid 6057] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6056] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6057] <... openat resumed>) = 4 [pid 6056] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0} [pid 6057] ioctl(4, LOOP_SET_FD, 3 [pid 6055] mount("/dev/loop0", "./file2", "nilfs2", MS_SYNCHRONOUS, ""./strace-static-x86_64: Process 6058 attached [pid 6057] <... ioctl resumed>) = 0 [pid 6056] <... clone3 resumed> => {parent_tid=[30]}, 88) = 30 [pid 6058] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 6057] close(3 [pid 6056] rt_sigprocmask(SIG_SETMASK, [], [pid 6058] <... rseq resumed>) = 0 [pid 6057] <... close resumed>) = 0 [pid 6057] close(4 [pid 6056] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6058] set_robust_list(0x7f0d6ae1f9a0, 24) = 0 [pid 6056] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6058] rt_sigprocmask(SIG_SETMASK, [], [pid 6057] <... close resumed>) = 0 [pid 6056] <... futex resumed>) = 0 [pid 6058] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6057] mkdir("./file2", 0777 [pid 6056] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6057] <... mkdir resumed>) = 0 [pid 6058] memfd_create("syzkaller", 0 [pid 6057] mount("/dev/loop3", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 6058] <... memfd_create resumed>) = 3 [ 104.427510][ T6054] NILFS (loop2): broken superblock, retrying with spare superblock (blocksize = 1024) [ 104.451507][ T6057] loop3: detected capacity change from 0 to 2048 [ 104.453387][ T6055] NILFS (loop0): broken superblock, retrying with spare superblock (blocksize = 1024) [pid 6058] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 [pid 6054] <... mount resumed>) = 0 [pid 6054] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY) = 3 [pid 6054] chdir("./file2") = 0 [pid 6054] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6054] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6058] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6051] <... futex resumed>) = 0 [pid 6054] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6051] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6054] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6051] <... futex resumed>) = 0 [pid 6054] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 6051] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6054] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 6054] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6051] <... futex resumed>) = 0 [pid 6058] <... write resumed>) = 1048576 [pid 6058] munmap(0x7f0d62800000, 138412032) = 0 [pid 6054] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6051] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6058] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6054] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6051] <... futex resumed>) = 0 [pid 6055] <... mount resumed>) = 0 [pid 6054] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 6051] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6058] <... openat resumed>) = 4 [pid 6055] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 6054] <... openat resumed>) = 4 [pid 6055] <... openat resumed>) = 3 [ 104.479647][ T6057] NILFS (loop3): broken superblock, retrying with spare superblock (blocksize = 1024) [ 104.493482][ T6059] NILFS (loop2): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 104.517744][ T6060] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6054] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6051] <... futex resumed>) = 0 [pid 6058] ioctl(4, LOOP_SET_FD, 3 [pid 6055] chdir("./file2" [pid 6054] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6051] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6055] <... chdir resumed>) = 0 [pid 6054] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6051] <... futex resumed>) = 0 [pid 6055] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6054] read(-1, [pid 6051] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6055] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6054] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 6055] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6054] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6055] <... futex resumed>) = 1 [pid 6054] <... futex resumed>) = 1 [pid 6051] <... futex resumed>) = 0 [pid 6055] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6054] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6051] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6054] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6051] <... futex resumed>) = 0 [pid 6054] memfd_create("syzkaller", 0 [pid 6051] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6054] <... memfd_create resumed>) = 5 [pid 6054] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 [pid 6058] <... ioctl resumed>) = 0 [pid 6053] <... futex resumed>) = 0 [pid 6058] close(3 [pid 6053] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6058] <... close resumed>) = 0 [pid 6053] <... futex resumed>) = 1 [pid 6058] close(4 [pid 6053] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6058] <... close resumed>) = 0 [pid 6057] <... mount resumed>) = 0 [pid 6058] mkdir("./file2", 0777 [pid 6057] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 6058] <... mkdir resumed>) = 0 [pid 6058] mount("/dev/loop4", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 6049] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 6049] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6049] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6057] <... openat resumed>) = 3 [pid 6055] <... futex resumed>) = 0 [pid 6057] chdir("./file2" [pid 6055] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 6054] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 6048] close(3 [pid 6057] <... chdir resumed>) = 0 [pid 6055] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 6048] <... close resumed>) = 0 [ 104.553654][ T6058] loop4: detected capacity change from 0 to 2048 [ 104.562893][ T6050] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 104.578444][ T6061] NILFS (loop3): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6057] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6055] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6054] <... write resumed>) = 524288 [pid 6048] close(4 [pid 6055] <... futex resumed>) = 1 [pid 6057] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6055] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6054] munmap(0x7f0d62800000, 138412032 [pid 6053] <... futex resumed>) = 0 [pid 6048] <... close resumed>) = 0 [pid 6057] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6048] close(5 [pid 6057] <... futex resumed>) = 1 [pid 6052] <... futex resumed>) = 0 [pid 6057] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6052] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6048] <... close resumed>) = 0 [pid 6048] close(6 [pid 6057] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6052] <... futex resumed>) = 0 [pid 6048] <... close resumed>) = 0 [pid 6057] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 6054] <... munmap resumed>) = 0 [pid 6053] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6052] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6048] close(7 [pid 6057] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 6054] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 6057] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6048] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6057] <... futex resumed>) = 1 [pid 6055] <... futex resumed>) = 0 [pid 6054] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6053] <... futex resumed>) = 1 [pid 6052] <... futex resumed>) = 0 [pid 6048] close(8 [pid 6057] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6055] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 6054] close(5 [pid 6052] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6048] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6057] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6052] <... futex resumed>) = 0 [pid 6048] close(9 [pid 6057] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 6052] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6048] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6057] <... openat resumed>) = 4 [pid 6055] <... openat resumed>) = 4 [pid 6054] <... close resumed>) = 0 [pid 6053] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6048] close(10 [pid 6057] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6055] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6054] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6048] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6057] <... futex resumed>) = 1 [pid 6055] <... futex resumed>) = 0 [pid 6052] <... futex resumed>) = 0 [pid 6048] close(11 [pid 6054] <... futex resumed>) = 1 [pid 6057] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6055] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6054] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6052] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6051] <... futex resumed>) = 0 [pid 6048] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6057] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6052] <... futex resumed>) = 0 [pid 6051] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6048] close(12 [pid 6057] read(-1, [pid 6054] <... futex resumed>) = 0 [pid 6053] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6052] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6051] <... futex resumed>) = 1 [pid 6057] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 6054] fsync(-1 [pid 6053] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6051] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6048] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6057] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6055] <... futex resumed>) = 0 [pid 6054] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 6053] <... futex resumed>) = 1 [pid 6048] close(13 [pid 6057] <... futex resumed>) = 1 [pid 6055] read(-1, [pid 6054] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6053] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6052] <... futex resumed>) = 0 [pid 6048] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6057] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6055] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 6054] <... futex resumed>) = 1 [pid 6052] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6051] <... futex resumed>) = 0 [pid 6048] close(14 [pid 6057] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6055] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6054] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6052] <... futex resumed>) = 0 [pid 6051] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6048] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6055] <... futex resumed>) = 0 [pid 6054] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6051] <... futex resumed>) = 0 [pid 6048] close(15 [pid 6055] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6054] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6052] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6051] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6048] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6057] memfd_create("syzkaller", 0 [pid 6048] close(16 [pid 6057] <... memfd_create resumed>) = 5 [pid 6053] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6048] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6054] <... openat resumed>) = 5 [pid 6053] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6054] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6048] close(17 [pid 6057] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6054] <... futex resumed>) = 1 [pid 6051] <... futex resumed>) = 0 [pid 6048] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6057] <... mmap resumed>) = 0x7f0d62800000 [pid 6055] <... futex resumed>) = 0 [pid 6054] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 6053] <... futex resumed>) = 1 [pid 6051] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6048] close(18 [pid 6055] memfd_create("syzkaller", 0 [pid 6051] <... futex resumed>) = 0 [pid 6048] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6055] <... memfd_create resumed>) = 5 [pid 6053] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6048] close(19 [pid 6055] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6051] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6048] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6055] <... mmap resumed>) = 0x7f0d62800000 [pid 6048] close(20) = -1 EBADF (Bad file descriptor) [pid 6057] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 6055] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 6048] close(21) = -1 EBADF (Bad file descriptor) [pid 6048] close(22) = -1 EBADF (Bad file descriptor) [pid 6048] close(23) = -1 EBADF (Bad file descriptor) [pid 6048] close(24) = -1 EBADF (Bad file descriptor) [pid 6048] close(25) = -1 EBADF (Bad file descriptor) [pid 6048] close(26) = -1 EBADF (Bad file descriptor) [pid 6048] close(27) = -1 EBADF (Bad file descriptor) [pid 6048] close(28) = -1 EBADF (Bad file descriptor) [ 104.601279][ T6058] NILFS (loop4): broken superblock, retrying with spare superblock (blocksize = 1024) [pid 6057] <... write resumed>) = 524288 [pid 6055] <... write resumed>) = 524288 [pid 6048] close(29 [pid 6057] munmap(0x7f0d62800000, 138412032 [pid 6055] munmap(0x7f0d62800000, 138412032 [pid 6048] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6057] <... munmap resumed>) = 0 [pid 6055] <... munmap resumed>) = 0 [pid 6048] exit_group(0 [pid 6057] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6055] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6048] <... exit_group resumed>) = ? [pid 6057] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6055] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6057] close(5 [pid 6055] close(5 [pid 6058] <... mount resumed>) = 0 [pid 6057] <... close resumed>) = 0 [pid 6054] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 6051] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6049] <... futex resumed>) = ? [pid 6058] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 6057] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6055] <... close resumed>) = 0 [pid 6054] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6051] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6058] <... openat resumed>) = 3 [pid 6057] <... futex resumed>) = 1 [pid 6055] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6054] <... futex resumed>) = 0 [pid 6052] <... futex resumed>) = 0 [pid 6051] <... futex resumed>) = 0 [pid 6058] chdir("./file2" [pid 6057] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6055] <... futex resumed>) = 1 [pid 6054] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 6053] <... futex resumed>) = 0 [pid 6052] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6051] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6058] <... chdir resumed>) = 0 [pid 6057] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6055] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6054] <... openat resumed>) = 6 [pid 6053] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6052] <... futex resumed>) = 0 [pid 6049] +++ exited with 0 +++ [pid 6048] +++ exited with 0 +++ [pid 6058] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6057] fsync(-1 [pid 6055] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6054] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6053] <... futex resumed>) = 0 [pid 6052] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6058] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6057] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 6055] fsync(-1 [pid 6054] <... futex resumed>) = 1 [pid 6053] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6051] <... futex resumed>) = 0 [pid 5834] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=33, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 6058] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6057] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6055] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 6054] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6051] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6058] <... futex resumed>) = 1 [pid 6057] <... futex resumed>) = 1 [pid 6056] <... futex resumed>) = 0 [pid 6055] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6054] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5834] umount2("./12", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6058] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6057] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6056] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6055] <... futex resumed>) = 1 [pid 6053] <... futex resumed>) = 0 [pid 6052] <... futex resumed>) = 0 [pid 6051] <... futex resumed>) = 0 [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6058] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6056] <... futex resumed>) = 0 [pid 6055] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6054] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 6053] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6052] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6051] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5834] openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6058] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 6056] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6055] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6053] <... futex resumed>) = 0 [pid 6058] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 6055] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6053] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5834] <... openat resumed>) = 3 [pid 6058] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5834] newfstatat(3, "", [pid 6058] <... futex resumed>) = 1 [pid 6056] <... futex resumed>) = 0 [pid 6058] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6056] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5834] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 6058] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6056] <... futex resumed>) = 0 [pid 6055] <... openat resumed>) = 5 [pid 6058] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 6056] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6055] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5834] getdents64(3, [pid 6058] <... openat resumed>) = 4 [pid 6057] <... futex resumed>) = 0 [pid 6055] <... futex resumed>) = 1 [pid 6053] <... futex resumed>) = 0 [pid 6052] <... futex resumed>) = 1 [pid 6058] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6057] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6055] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6053] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5834] <... getdents64 resumed>0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 6058] <... futex resumed>) = 1 [pid 6056] <... futex resumed>) = 0 [pid 6055] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6053] <... futex resumed>) = 0 [pid 6052] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6058] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6056] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6055] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 6053] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5834] umount2("./12/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6058] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6056] <... futex resumed>) = 0 [pid 6058] read(-1, [pid 6056] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6058] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 6058] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6056] <... futex resumed>) = 0 [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6058] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [ 104.656933][ T5838] udevd[5838]: incorrect nilfs2 checksum on /dev/loop4 [ 104.660653][ T6062] NILFS (loop4): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 104.665999][ T6059] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6056] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6058] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6057] <... openat resumed>) = 5 [pid 6056] <... futex resumed>) = 0 [pid 5834] newfstatat(AT_FDCWD, "./12/cgroup", [pid 6058] memfd_create("syzkaller", 0 [pid 6056] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5834] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6058] <... memfd_create resumed>) = 5 [pid 6057] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6058] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6057] <... futex resumed>) = 1 [pid 6052] <... futex resumed>) = 0 [pid 5834] unlink("./12/cgroup" [pid 6057] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6052] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6058] <... mmap resumed>) = 0x7f0d62800000 [pid 6057] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6055] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 6052] <... futex resumed>) = 0 [pid 5834] <... unlink resumed>) = 0 [pid 6057] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 6055] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6052] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5834] umount2("./12/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6058] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 6055] <... futex resumed>) = 1 [pid 6053] <... futex resumed>) = 0 [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6055] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6053] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5834] newfstatat(AT_FDCWD, "./12/cgroup.cpu", [pid 6055] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6053] <... futex resumed>) = 0 [pid 5834] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6058] <... write resumed>) = 524288 [pid 6055] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 6053] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6058] munmap(0x7f0d62800000, 138412032 [pid 6055] <... openat resumed>) = 6 [pid 6055] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5834] unlink("./12/cgroup.cpu" [pid 6058] <... munmap resumed>) = 0 [pid 6055] <... futex resumed>) = 1 [pid 6053] <... futex resumed>) = 0 [pid 6058] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6055] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6053] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6055] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6053] <... futex resumed>) = 0 [pid 6058] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6055] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 6053] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5834] <... unlink resumed>) = 0 [pid 6058] close(5 [pid 6051] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5834] umount2("./12/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5834] newfstatat(AT_FDCWD, "./12/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5834] unlink("./12/cgroup.net") = 0 [pid 5834] umount2("./12/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5834] newfstatat(AT_FDCWD, "./12/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5834] unlink("./12/binderfs") = 0 [pid 5834] umount2("./12/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6057] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 6057] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6052] <... futex resumed>) = 0 [pid 6057] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 6052] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6057] <... openat resumed>) = 6 [pid 6052] <... futex resumed>) = 0 [pid 6058] <... close resumed>) = 0 [pid 6057] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6052] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6057] <... futex resumed>) = 0 [pid 6052] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6057] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 6052] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 104.718752][ T6060] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 104.753975][ T6061] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6052] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6058] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6056] <... futex resumed>) = 0 [pid 6058] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6056] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6058] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6056] <... futex resumed>) = 0 [pid 6058] fsync(-1 [pid 6056] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6058] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 6058] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6056] <... futex resumed>) = 0 [pid 6058] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6056] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6058] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6056] <... futex resumed>) = 0 [pid 6058] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6056] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6058] <... openat resumed>) = 5 [pid 6058] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6056] <... futex resumed>) = 0 [pid 6058] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6056] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6058] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6056] <... futex resumed>) = 0 [pid 6058] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [ 104.790254][ T6050] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 104.820264][ T6050] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6056] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6053] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6052] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [ 104.841979][ T6062] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 104.861605][ T6050] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6058] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 6056] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6058] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6056] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6058] <... futex resumed>) = 0 [pid 6056] <... futex resumed>) = 0 [pid 6058] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 6056] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6058] <... openat resumed>) = 6 [pid 6058] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6056] <... futex resumed>) = 0 [pid 6058] <... futex resumed>) = 1 [pid 6056] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6058] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 6056] <... futex resumed>) = 0 [ 104.884189][ T6050] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 104.910467][ T6050] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 104.933826][ T6050] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 104.960013][ T6050] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 104.979767][ T6059] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6056] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 6054] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 6054] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6054] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6051] close(3) = 0 [pid 6051] close(4) = 0 [pid 6051] close(5) = 0 [pid 6051] close(6) = 0 [pid 6051] close(7) = -1 EBADF (Bad file descriptor) [pid 6051] close(8) = -1 EBADF (Bad file descriptor) [pid 6051] close(9) = -1 EBADF (Bad file descriptor) [pid 6051] close(10 [pid 6057] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 6051] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6057] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6052] close(3 [pid 6051] close(11 [pid 6057] <... futex resumed>) = 0 [pid 6052] <... close resumed>) = 0 [pid 6051] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6057] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6052] close(4 [pid 6051] close(12 [pid 6052] <... close resumed>) = 0 [pid 6051] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6052] close(5 [pid 6051] close(13 [pid 6052] <... close resumed>) = 0 [pid 6051] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6052] close(6 [pid 6051] close(14 [pid 6052] <... close resumed>) = 0 [pid 6051] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6052] close(7 [pid 6051] close(15 [pid 6052] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6051] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6052] close(8 [pid 6051] close(16 [pid 6052] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6051] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6052] close(9 [pid 6051] close(17 [pid 6052] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6051] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6052] close(10 [pid 6051] close(18 [pid 6052] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6051] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6052] close(11 [pid 6051] close(19 [pid 6052] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6051] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6052] close(12 [pid 6051] close(20 [pid 6052] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6051] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6052] close(13 [pid 6051] close(21 [pid 6052] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6051] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6052] close(14 [pid 6051] close(22 [pid 6052] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6051] <... close resumed>) = -1 EBADF (Bad file descriptor) [ 104.981566][ T6050] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 105.014297][ T6061] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 105.014743][ T6050] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6052] close(15 [pid 6051] close(23) = -1 EBADF (Bad file descriptor) [pid 6051] close(24 [pid 6052] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6051] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6052] close(16 [pid 6051] close(25 [pid 6052] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6051] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6052] close(17 [pid 6051] close(26 [pid 6052] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6051] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6052] close(18 [pid 6051] close(27 [pid 6052] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6051] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6052] close(19 [pid 6051] close(28 [pid 6052] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6051] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6052] close(20 [pid 6051] close(29 [pid 6052] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6051] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6052] close(21 [pid 6051] exit_group(0 [pid 6054] <... futex resumed>) = ? [pid 6052] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6051] <... exit_group resumed>) = ? [pid 6054] +++ exited with 0 +++ [pid 6052] close(22 [pid 6051] +++ exited with 0 +++ [pid 6052] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6052] close(23 [pid 5836] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=29, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 6052] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] restart_syscall(<... resuming interrupted clone ...> [pid 6052] close(24) = -1 EBADF (Bad file descriptor) [pid 6052] close(25) = -1 EBADF (Bad file descriptor) [pid 6052] close(26 [pid 5836] <... restart_syscall resumed>) = 0 [pid 6052] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6052] close(27) = -1 EBADF (Bad file descriptor) [pid 5836] umount2("./11", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6052] close(28 [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6052] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6052] close(29 [pid 5836] <... openat resumed>) = 3 [pid 6052] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] newfstatat(3, "", [pid 6052] exit_group(0 [pid 5836] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 6057] <... futex resumed>) = ? [pid 6052] <... exit_group resumed>) = ? [pid 5836] getdents64(3, [pid 6057] +++ exited with 0 +++ [pid 6052] +++ exited with 0 +++ [pid 5836] <... getdents64 resumed>0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 5836] umount2("./11/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5835] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=27, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5835] restart_syscall(<... resuming interrupted clone ...> [pid 5836] newfstatat(AT_FDCWD, "./11/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5836] unlink("./11/cgroup") = 0 [pid 5836] umount2("./11/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5836] newfstatat(AT_FDCWD, "./11/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5836] unlink("./11/cgroup.cpu") = 0 [pid 5836] umount2("./11/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5836] newfstatat(AT_FDCWD, "./11/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5836] unlink("./11/cgroup.net") = 0 [pid 5836] umount2("./11/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5835] <... restart_syscall resumed>) = 0 [pid 5836] newfstatat(AT_FDCWD, "./11/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5836] unlink("./11/binderfs" [pid 5835] umount2("./11", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5836] <... unlink resumed>) = 0 [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5836] umount2("./11/file2", MNT_FORCE|UMOUNT_NOFOLLOW [ 105.055923][ T6050] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 105.078330][ T6060] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5835] openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5835] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 5835] getdents64(3, 0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 5835] umount2("./11/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5835] newfstatat(AT_FDCWD, "./11/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5835] unlink("./11/cgroup") = 0 [pid 5835] umount2("./11/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5835] newfstatat(AT_FDCWD, "./11/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5835] unlink("./11/cgroup.cpu") = 0 [pid 6055] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 6055] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6053] close(3 [pid 6055] <... futex resumed>) = 0 [pid 6053] <... close resumed>) = 0 [pid 5835] umount2("./11/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5835] newfstatat(AT_FDCWD, "./11/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5835] unlink("./11/cgroup.net") = 0 [pid 5835] umount2("./11/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5835] newfstatat(AT_FDCWD, "./11/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5835] unlink("./11/binderfs") = 0 [ 105.100103][ T6059] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 105.103565][ T6050] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 105.123831][ T6059] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 105.127748][ T6050] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5835] umount2("./11/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6055] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6053] close(4) = 0 [pid 6053] close(5) = 0 [ 105.148991][ T6061] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 105.151116][ T6050] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 105.165904][ T6059] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 105.171660][ T6050] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 105.193522][ T6061] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6053] close(6) = 0 [ 105.193719][ T6050] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 105.215949][ T6059] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 105.217957][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 105.227582][ T6061] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6053] close(7) = -1 EBADF (Bad file descriptor) [pid 6053] close(8) = -1 EBADF (Bad file descriptor) [ 105.239796][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 105.261024][ T6059] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 105.261763][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 105.273927][ T6062] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 105.284523][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6053] close(9) = -1 EBADF (Bad file descriptor) [pid 6053] close(10 [pid 6058] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 6053] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6058] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6053] close(11 [pid 6058] <... futex resumed>) = 0 [pid 6053] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6056] close(3) = 0 [pid 6056] close(4) = 0 [pid 6056] close(5) = 0 [pid 6056] close(6) = 0 [pid 6056] close(7) = -1 EBADF (Bad file descriptor) [pid 6056] close(8) = -1 EBADF (Bad file descriptor) [pid 6056] close(9) = -1 EBADF (Bad file descriptor) [pid 6056] close(10) = -1 EBADF (Bad file descriptor) [pid 6056] close(11) = -1 EBADF (Bad file descriptor) [pid 6056] close(12) = -1 EBADF (Bad file descriptor) [pid 6056] close(13) = -1 EBADF (Bad file descriptor) [pid 6056] close(14) = -1 EBADF (Bad file descriptor) [pid 6056] close(15) = -1 EBADF (Bad file descriptor) [pid 6056] close(16) = -1 EBADF (Bad file descriptor) [pid 6056] close(17) = -1 EBADF (Bad file descriptor) [pid 6056] close(18) = -1 EBADF (Bad file descriptor) [pid 6056] close(19) = -1 EBADF (Bad file descriptor) [pid 6056] close(20) = -1 EBADF (Bad file descriptor) [pid 6056] close(21) = -1 EBADF (Bad file descriptor) [pid 6056] close(22) = -1 EBADF (Bad file descriptor) [pid 6056] close(23) = -1 EBADF (Bad file descriptor) [pid 6056] close(24) = -1 EBADF (Bad file descriptor) [pid 6056] close(25) = -1 EBADF (Bad file descriptor) [pid 6056] close(26) = -1 EBADF (Bad file descriptor) [pid 6056] close(27) = -1 EBADF (Bad file descriptor) [pid 6056] close(28) = -1 EBADF (Bad file descriptor) [pid 6056] close(29) = -1 EBADF (Bad file descriptor) [pid 6056] exit_group(0) = ? [ 105.293706][ T6059] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 105.305873][ T5834] NILFS (loop1): disposed unprocessed dirty file(s) when stopping log writer [ 105.315312][ T6061] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 105.335604][ T6059] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6053] close(12) = -1 EBADF (Bad file descriptor) [pid 6053] close(13 [pid 6058] +++ exited with 0 +++ [pid 6056] +++ exited with 0 +++ [pid 6053] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5837] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=29, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 5837] restart_syscall(<... resuming interrupted clone ...> [pid 6053] close(14) = -1 EBADF (Bad file descriptor) [pid 5837] <... restart_syscall resumed>) = 0 [pid 6053] close(15 [pid 5834] <... umount2 resumed>) = 0 [pid 6053] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6053] close(16) = -1 EBADF (Bad file descriptor) [pid 6053] close(17) = -1 EBADF (Bad file descriptor) [pid 6053] close(18) = -1 EBADF (Bad file descriptor) [pid 6053] close(19) = -1 EBADF (Bad file descriptor) [ 105.347818][ T6061] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 105.365285][ T6059] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 105.377190][ T6061] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 105.377964][ T6059] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6053] close(20 [pid 5834] umount2("./12/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6053] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6053] close(21) = -1 EBADF (Bad file descriptor) [pid 6053] close(22) = -1 EBADF (Bad file descriptor) [pid 6053] close(23) = -1 EBADF (Bad file descriptor) [pid 6053] close(24) = -1 EBADF (Bad file descriptor) [pid 6053] close(25) = -1 EBADF (Bad file descriptor) [pid 6053] close(26) = -1 EBADF (Bad file descriptor) [pid 6053] close(27) = -1 EBADF (Bad file descriptor) [pid 6053] close(28) = -1 EBADF (Bad file descriptor) [pid 6053] close(29) = -1 EBADF (Bad file descriptor) [pid 6053] exit_group(0 [pid 6055] <... futex resumed>) = ? [pid 6053] <... exit_group resumed>) = ? [pid 6055] +++ exited with 0 +++ [pid 6053] +++ exited with 0 +++ [pid 5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=34, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [ 105.399763][ T6061] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 105.399953][ T6061] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 105.400126][ T6061] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 105.400291][ T6061] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 105.412054][ T6059] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5833] restart_syscall(<... resuming interrupted clone ...> [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5833] <... restart_syscall resumed>) = 0 [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, 0x55555fa3d730 /* 7 entries */, 32768) = 208 [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] 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.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/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/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5837] umount2("./12", MNT_FORCE|UMOUNT_NOFOLLOW [ 105.443963][ T6061] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 105.444141][ T6061] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 105.456691][ T6059] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 105.478743][ T6061] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 105.488569][ T6059] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5834] newfstatat(AT_FDCWD, "./12/file2", [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5834] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5837] openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [ 105.500578][ T6061] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 105.509965][ T6059] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 105.520624][ T6060] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 105.530362][ T6059] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5834] umount2("./12/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5837] <... openat resumed>) = 3 [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5837] newfstatat(3, "", [pid 5834] openat(AT_FDCWD, "./12/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5837] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 5834] newfstatat(4, "", [pid 5837] getdents64(3, [pid 5834] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 5837] <... getdents64 resumed>0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 5834] getdents64(4, [pid 5837] umount2("./12/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5834] <... getdents64 resumed>0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5834] getdents64(4, [pid 5837] newfstatat(AT_FDCWD, "./12/cgroup", [pid 5834] <... getdents64 resumed>0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 5837] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5834] close(4 [pid 5837] unlink("./12/cgroup" [pid 5834] <... close resumed>) = 0 [pid 5837] <... unlink resumed>) = 0 [pid 5834] rmdir("./12/file2" [pid 5837] umount2("./12/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5834] <... rmdir resumed>) = 0 [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5834] getdents64(3, [pid 5837] newfstatat(AT_FDCWD, "./12/cgroup.cpu", [pid 5834] <... getdents64 resumed>0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 5837] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5834] close(3 [pid 5837] unlink("./12/cgroup.cpu" [pid 5834] <... close resumed>) = 0 [pid 5837] <... unlink resumed>) = 0 [pid 5834] rmdir("./12" [pid 5837] umount2("./12/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5834] <... rmdir resumed>) = 0 [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 105.542627][ T6060] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 105.550861][ T6061] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 105.573184][ T6059] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 105.575699][ T6060] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 105.583842][ T5835] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5834] mkdir("./13", 0777 [pid 5837] newfstatat(AT_FDCWD, "./12/cgroup.net", [pid 5834] <... mkdir resumed>) = 0 [pid 5837] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5834] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5837] unlink("./12/cgroup.net" [pid 5834] <... openat resumed>) = 3 [pid 5837] <... unlink resumed>) = 0 [pid 5834] ioctl(3, LOOP_CLR_FD [pid 5837] umount2("./12/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5834] <... ioctl resumed>) = 0 [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5834] close(3 [pid 5837] newfstatat(AT_FDCWD, "./12/binderfs", [pid 5834] <... close resumed>) = 0 [pid 5837] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5837] unlink("./12/binderfs") = 0 [pid 5837] umount2("./12/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5834] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6063 attached [ 105.606870][ T5836] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 105.618786][ T5835] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 105.630660][ T5836] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 105.642305][ T6060] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6063] set_robust_list(0x55555fa3c6a0, 24 [pid 5834] <... clone resumed>, child_tidptr=0x55555fa3c690) = 35 [pid 6063] <... set_robust_list resumed>) = 0 [pid 6063] chdir("./13") = 0 [pid 6063] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6063] setpgid(0, 0) = 0 [pid 6063] symlink("/syzcgroup/unified/syz1", "./cgroup") = 0 [pid 6063] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu") = 0 [ 105.654428][ T5835] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 105.665928][ T6060] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 105.677423][ T6062] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 105.687554][ T5835] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 105.698592][ T5836] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6063] symlink("/syzcgroup/net/syz1", "./cgroup.net"executing program ) = 0 [pid 6063] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6063] write(3, "1000", 4) = 4 [pid 6063] close(3) = 0 [pid 6063] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6063] write(1, "executing program\n", 18) = 18 [pid 6063] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6063] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, NULL, 8) = 0 [pid 6063] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6063] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0d6adff000 [pid 6063] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6063] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6063] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0}./strace-static-x86_64: Process 6064 attached [pid 6064] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 6063] <... clone3 resumed> => {parent_tid=[36]}, 88) = 36 [pid 6064] <... rseq resumed>) = 0 [pid 6063] rt_sigprocmask(SIG_SETMASK, [], [pid 6064] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 6063] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6064] <... set_robust_list resumed>) = 0 [pid 6063] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6064] rt_sigprocmask(SIG_SETMASK, [], [pid 6063] <... futex resumed>) = 0 [pid 6064] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6063] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6064] memfd_create("syzkaller", 0) = 3 [pid 6064] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 [ 105.709765][ T5836] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 105.716399][ T5835] NILFS (loop3): disposed unprocessed dirty file(s) when stopping log writer [ 105.720471][ T5836] NILFS (loop2): disposed unprocessed dirty file(s) when stopping log writer [ 105.739521][ T6060] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6064] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576 [pid 6064] munmap(0x7f0d62800000, 138412032) = 0 [pid 6064] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [ 105.750378][ T6062] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 105.761831][ T6060] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 105.773625][ T6060] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 105.774908][ T6064] loop1: detected capacity change from 0 to 2048 [ 105.785220][ T6060] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 105.792610][ T6062] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 105.802290][ T6060] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 105.823412][ T6060] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 105.834274][ T6060] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 105.845511][ T6060] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6064] ioctl(4, LOOP_SET_FD, 3 [pid 5836] <... umount2 resumed>) = 0 [pid 6064] <... ioctl resumed>) = 0 [pid 6064] close(3) = 0 [pid 6064] close(4) = 0 [pid 6064] mkdir("./file2", 0777) = 0 [pid 6064] mount("/dev/loop1", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 5836] umount2("./11/file2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5836] newfstatat(AT_FDCWD, "./11/file2", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5836] umount2("./11/file2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5836] openat(AT_FDCWD, "./11/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5836] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 5836] getdents64(4, 0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 5836] getdents64(4, 0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 5836] close(4) = 0 [pid 5836] rmdir("./11/file2") = 0 [pid 5836] getdents64(3, 0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 5836] close(3) = 0 [pid 5836] rmdir("./11") = 0 [pid 5836] mkdir("./12", 0777) = 0 [pid 5836] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5836] ioctl(3, LOOP_CLR_FD) = 0 [ 105.850007][ T6062] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 105.856764][ T6060] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 105.878946][ T6060] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 105.895136][ T5833] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 105.907312][ T5833] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 105.918939][ T5833] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 105.930587][ T5833] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 105.941839][ T5833] NILFS (loop0): disposed unprocessed dirty file(s) when stopping log writer [pid 5836] close(3) = 0 [pid 5836] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555fa3c690) = 31 ./strace-static-x86_64: Process 6065 attached [pid 6065] set_robust_list(0x55555fa3c6a0, 24 [pid 5833] <... umount2 resumed>) = 0 [pid 5833] umount2("./12/file2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./12/file2", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] umount2("./12/file2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] openat(AT_FDCWD, "./12/file2", 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 [ 105.941992][ T6062] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 105.970962][ T6064] NILFS (loop1): broken superblock, retrying with spare superblock (blocksize = 1024) [ 105.998112][ T6062] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6065] <... set_robust_list resumed>) = 0 [pid 6065] chdir("./12" [pid 5833] getdents64(4, [pid 6065] <... chdir resumed>) = 0 [pid 5835] <... umount2 resumed>) = 0 [pid 5833] <... getdents64 resumed>0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 6065] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5835] umount2("./11/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5833] getdents64(4, [pid 6065] <... prctl resumed>) = 0 [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6065] setpgid(0, 0 [pid 5835] newfstatat(AT_FDCWD, "./11/file2", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6065] <... setpgid resumed>) = 0 [pid 5835] umount2("./11/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6065] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6065] <... symlink resumed>) = 0 [pid 6064] <... mount resumed>) = 0 [pid 5833] <... getdents64 resumed>0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 5835] openat(AT_FDCWD, "./11/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5835] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 6065] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu") = 0 [pid 5835] getdents64(4, [pid 5833] close(4 [pid 6064] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5835] <... getdents64 resumed>0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 5835] getdents64(4, 0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 6065] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 6064] <... openat resumed>) = 3 [pid 5833] <... close resumed>) = 0 [pid 6065] <... symlink resumed>) = 0 [pid 6064] chdir("./file2" [pid 5835] close(4 [ 106.006839][ T6066] NILFS (loop1): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 106.022663][ T6062] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 106.036961][ T6062] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 106.050055][ T6062] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5833] rmdir("./12/file2"executing program [pid 6065] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6064] <... chdir resumed>) = 0 [pid 5835] <... close resumed>) = 0 [pid 5833] <... rmdir resumed>) = 0 [pid 6065] <... openat resumed>) = 3 [pid 6064] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5835] rmdir("./11/file2" [pid 6064] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5833] getdents64(3, [pid 6065] write(3, "1000", 4 [pid 6064] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5835] <... rmdir resumed>) = 0 [pid 5833] <... getdents64 resumed>0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 6065] <... write resumed>) = 4 [pid 6064] <... futex resumed>) = 1 [pid 5835] getdents64(3, [pid 5833] close(3 [pid 6065] close(3 [pid 6064] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6065] <... close resumed>) = 0 [pid 5835] <... getdents64 resumed>0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 5833] <... close resumed>) = 0 [pid 6065] symlink("/dev/binderfs", "./binderfs" [pid 5835] close(3 [pid 6065] <... symlink resumed>) = 0 [pid 5835] <... close resumed>) = 0 [pid 5833] rmdir("./12" [pid 5835] rmdir("./11" [pid 6065] write(1, "executing program\n", 18 [pid 5835] <... rmdir resumed>) = 0 [pid 5833] <... rmdir resumed>) = 0 [pid 6065] <... write resumed>) = 18 [pid 5835] mkdir("./12", 0777 [pid 5833] mkdir("./13", 0777 [pid 6065] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5835] <... mkdir resumed>) = 0 [pid 5833] <... mkdir resumed>) = 0 [pid 6065] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, [pid 5835] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6065] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5835] <... openat resumed>) = 3 [pid 5833] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6065] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5835] ioctl(3, LOOP_CLR_FD [pid 5833] <... openat resumed>) = 3 [pid 6065] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6063] <... futex resumed>) = 0 [pid 5835] <... ioctl resumed>) = 0 [pid 5833] ioctl(3, LOOP_CLR_FD [pid 6065] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5835] close(3 [pid 6065] <... mmap resumed>) = 0x7f0d6adff000 [pid 6063] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5835] <... close resumed>) = 0 [pid 5833] <... ioctl resumed>) = 0 [pid 6065] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE [pid 6064] <... futex resumed>) = 0 [pid 6063] <... futex resumed>) = 1 [pid 5835] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6065] <... mprotect resumed>) = 0 [pid 6064] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 6063] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6065] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6065] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0} => {parent_tid=[32]}, 88) = 32 [pid 6065] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6065] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6065] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 6068 attached ./strace-static-x86_64: Process 6067 attached [pid 6068] set_robust_list(0x55555fa3c6a0, 24 [pid 6064] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 5833] close(3 [pid 6068] <... set_robust_list resumed>) = 0 [pid 5835] <... clone resumed>, child_tidptr=0x55555fa3c690) = 29 [pid 6068] chdir("./12" [ 106.062397][ T6062] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 106.074629][ T6062] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 106.086795][ T6062] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6064] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6068] <... chdir resumed>) = 0 [pid 6067] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 5833] <... close resumed>) = 0 [pid 6068] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6068] setpgid(0, 0 [pid 6064] <... futex resumed>) = 1 [pid 6063] <... futex resumed>) = 0 [pid 5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6067] <... rseq resumed>) = 0 [pid 6068] <... setpgid resumed>) = 0 [pid 6067] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 6068] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 6067] <... set_robust_list resumed>) = 0 [pid 6067] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6068] <... symlink resumed>) = 0 [pid 6067] memfd_create("syzkaller", 0) = 3 [ 106.124162][ T6062] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 106.135636][ T6062] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 106.154425][ T6062] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 executing program executing program ./strace-static-x86_64: Process 6069 attached [pid 6067] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6064] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 6063] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6069] set_robust_list(0x55555fa3c6a0, 24 [pid 6068] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 6064] <... openat resumed>) = 4 [pid 5833] <... clone resumed>, child_tidptr=0x55555fa3c690) = 36 [pid 6069] <... set_robust_list resumed>) = 0 [pid 6064] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6069] chdir("./13" [pid 6068] <... symlink resumed>) = 0 [pid 6064] <... futex resumed>) = 0 [pid 6069] <... chdir resumed>) = 0 [pid 6068] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 6064] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6069] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6067] <... mmap resumed>) = 0x7f0d62800000 [pid 6069] <... prctl resumed>) = 0 [pid 6069] setpgid(0, 0 [pid 6068] <... symlink resumed>) = 0 [pid 6069] <... setpgid resumed>) = 0 [pid 6068] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6069] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 6068] <... openat resumed>) = 3 [pid 6069] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 6069] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 6068] write(3, "1000", 4 [pid 6069] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6068] <... write resumed>) = 4 [pid 6069] <... openat resumed>) = 3 [pid 6069] write(3, "1000", 4 [pid 6068] close(3 [pid 6069] <... write resumed>) = 4 [pid 6068] <... close resumed>) = 0 [pid 6069] close(3 [pid 6068] symlink("/dev/binderfs", "./binderfs" [pid 6069] <... close resumed>) = 0 [pid 6069] symlink("/dev/binderfs", "./binderfs" [pid 6068] <... symlink resumed>) = 0 [pid 6069] <... symlink resumed>) = 0 [pid 6069] write(1, "executing program\n", 18) = 18 [pid 6069] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6068] write(1, "executing program\n", 18 [pid 6069] <... futex resumed>) = 0 [pid 6068] <... write resumed>) = 18 [pid 6069] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, NULL, 8) = 0 [pid 6068] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6069] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 6068] <... futex resumed>) = 0 [pid 6069] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6068] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, [pid 6069] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6068] <... rt_sigaction resumed>NULL, 8) = 0 [pid 6069] <... mmap resumed>) = 0x7f0d6adff000 [pid 6068] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 6064] <... futex resumed>) = 0 [pid 6063] <... futex resumed>) = 1 [pid 6069] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE [pid 6068] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6064] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6069] <... mprotect resumed>) = 0 [pid 6068] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6069] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6068] <... mmap resumed>) = 0x7f0d6adff000 [pid 6069] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0} [pid 6068] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE./strace-static-x86_64: Process 6070 attached [pid 6070] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 6068] <... mprotect resumed>) = 0 [pid 6070] <... rseq resumed>) = 0 [pid 6069] <... clone3 resumed> => {parent_tid=[37]}, 88) = 37 [pid 6070] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 6068] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6070] <... set_robust_list resumed>) = 0 [pid 6069] rt_sigprocmask(SIG_SETMASK, [], [pid 6070] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6069] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6068] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6070] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6069] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6068] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0} [pid 6070] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6070] memfd_create("syzkaller", 0 [pid 6069] <... futex resumed>) = 0 [pid 6063] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6070] <... memfd_create resumed>) = 3 [pid 6069] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6063] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) ./strace-static-x86_64: Process 6071 attached [pid 6070] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6068] <... clone3 resumed> => {parent_tid=[30]}, 88) = 30 [pid 6071] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 6070] <... mmap resumed>) = 0x7f0d62800000 [pid 6068] rt_sigprocmask(SIG_SETMASK, [], [pid 6071] <... rseq resumed>) = 0 [pid 6063] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6068] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6064] <... futex resumed>) = 0 [pid 6063] <... futex resumed>) = 1 [pid 6064] read(-1, 0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 6064] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6071] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 6068] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6064] <... futex resumed>) = 0 [pid 6071] <... set_robust_list resumed>) = 0 [pid 6068] <... futex resumed>) = 0 [pid 6067] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6064] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6063] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6071] rt_sigprocmask(SIG_SETMASK, [], [pid 6068] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6071] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6071] memfd_create("syzkaller", 0) = 3 [pid 6071] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 [pid 6070] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6063] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6063] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6064] <... futex resumed>) = 0 [pid 6063] <... futex resumed>) = 1 [pid 6064] memfd_create("syzkaller", 0 [ 106.172595][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 106.197937][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6063] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6067] <... write resumed>) = 1048576 [pid 6071] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6070] <... write resumed>) = 1048576 [pid 6064] <... memfd_create resumed>) = 5 [pid 6067] munmap(0x7f0d62800000, 138412032 [pid 6070] munmap(0x7f0d62800000, 138412032 [pid 6067] <... munmap resumed>) = 0 [pid 6070] <... munmap resumed>) = 0 [pid 6070] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6067] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 6070] <... openat resumed>) = 4 [pid 6067] <... openat resumed>) = 4 [pid 6064] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6070] ioctl(4, LOOP_SET_FD, 3 [pid 6067] ioctl(4, LOOP_SET_FD, 3 [pid 6064] <... mmap resumed>) = 0x7f0d62800000 [pid 6064] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 6071] <... write resumed>) = 1048576 [pid 6070] <... ioctl resumed>) = 0 [pid 6067] <... ioctl resumed>) = 0 [pid 6064] <... write resumed>) = 524288 [pid 6064] munmap(0x7f0d62800000, 138412032 [pid 6071] munmap(0x7f0d62800000, 138412032 [pid 6070] close(3 [pid 6067] close(3 [pid 6064] <... munmap resumed>) = 0 [pid 6064] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6067] <... close resumed>) = 0 [pid 6064] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6071] <... munmap resumed>) = 0 [pid 6064] close(5 [pid 5837] <... umount2 resumed>) = 0 [pid 6071] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6070] <... close resumed>) = 0 [pid 6067] close(4 [pid 5837] umount2("./12/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6071] <... openat resumed>) = 4 [pid 6070] close(4 [pid 6067] <... close resumed>) = 0 [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 106.221748][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 106.233511][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 106.245685][ T5837] NILFS (loop4): disposed unprocessed dirty file(s) when stopping log writer [ 106.256636][ T6067] loop2: detected capacity change from 0 to 2048 [ 106.263806][ T6070] loop0: detected capacity change from 0 to 2048 [pid 6071] ioctl(4, LOOP_SET_FD, 3 [pid 6070] <... close resumed>) = 0 [pid 6067] mkdir("./file2", 0777 [pid 5837] newfstatat(AT_FDCWD, "./12/file2", [pid 6071] <... ioctl resumed>) = 0 [pid 6070] mkdir("./file2", 0777 [pid 6067] <... mkdir resumed>) = 0 [pid 6064] <... close resumed>) = 0 [pid 6071] close(3 [pid 6070] <... mkdir resumed>) = 0 [pid 6067] mount("/dev/loop2", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 6064] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6071] <... close resumed>) = 0 [pid 6070] mount("/dev/loop0", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 6071] close(4) = 0 [pid 6071] mkdir("./file2", 0777) = 0 [pid 6071] mount("/dev/loop3", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 6064] <... futex resumed>) = 1 [pid 6063] <... futex resumed>) = 0 [ 106.297339][ T6071] loop3: detected capacity change from 0 to 2048 [ 106.325106][ T6067] NILFS (loop2): broken superblock, retrying with spare superblock (blocksize = 1024) [ 106.336092][ T6070] NILFS (loop0): broken superblock, retrying with spare superblock (blocksize = 1024) [pid 5837] umount2("./12/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6064] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6063] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6064] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6064] fsync(-1 [pid 6063] <... futex resumed>) = 0 [pid 5837] openat(AT_FDCWD, "./12/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6064] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 6063] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5837] <... openat resumed>) = 4 [pid 6064] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6063] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5837] newfstatat(4, "", [pid 6064] <... futex resumed>) = 0 [pid 6063] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 6064] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6063] <... futex resumed>) = 0 [pid 5837] getdents64(4, [pid 6063] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5837] <... getdents64 resumed>0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 5837] getdents64(4, [pid 6064] <... openat resumed>) = 5 [pid 5837] <... getdents64 resumed>0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 6064] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6063] <... futex resumed>) = 0 [pid 5837] close(4 [pid 6064] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 6063] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] <... close resumed>) = 0 [pid 6063] <... futex resumed>) = 0 [ 106.345194][ T5838] udevd[5838]: incorrect nilfs2 checksum on /dev/loop2 [ 106.346766][ T6071] NILFS (loop3): broken superblock, retrying with spare superblock (blocksize = 1024) [ 106.375391][ T5838] udevd[5838]: incorrect nilfs2 checksum on /dev/loop0 [pid 5837] rmdir("./12/file2" [pid 6063] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5837] <... rmdir resumed>) = 0 [pid 6071] <... mount resumed>) = 0 [pid 5837] getdents64(3, [pid 6071] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY) = 3 [pid 6071] chdir("./file2") = 0 [pid 6071] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6071] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6068] <... futex resumed>) = 0 [pid 6071] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 6068] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] <... getdents64 resumed>0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 6071] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 6068] <... futex resumed>) = 0 [pid 6071] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 6068] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5837] close(3) = 0 [pid 5837] rmdir("./12") = 0 [pid 6064] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 5837] mkdir("./13", 0777 [pid 6071] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6068] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6064] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] <... mkdir resumed>) = 0 [pid 6071] <... futex resumed>) = 0 [pid 6070] <... mount resumed>) = 0 [pid 6068] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6067] <... mount resumed>) = 0 [pid 6064] <... futex resumed>) = 1 [pid 6063] <... futex resumed>) = 0 [pid 5837] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6071] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 6070] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 6068] <... futex resumed>) = 0 [pid 6067] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 6064] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6063] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] <... openat resumed>) = 3 [pid 6071] <... openat resumed>) = 4 [pid 6070] <... openat resumed>) = 3 [pid 6068] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6067] <... openat resumed>) = 3 [pid 6064] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6063] <... futex resumed>) = 0 [pid 5837] ioctl(3, LOOP_CLR_FD [pid 6071] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6070] chdir("./file2" [pid 6068] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6067] chdir("./file2" [pid 6064] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 6063] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5837] <... ioctl resumed>) = 0 [pid 6071] <... futex resumed>) = 0 [pid 6070] <... chdir resumed>) = 0 [pid 6068] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6067] <... chdir resumed>) = 0 [pid 6070] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6067] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5837] close(3 [pid 6067] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6071] read(-1, [pid 6070] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6068] <... futex resumed>) = 0 [pid 6067] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6071] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 6070] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6071] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6070] <... futex resumed>) = 1 [pid 6071] <... futex resumed>) = 0 [pid 6069] <... futex resumed>) = 0 [pid 6071] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6070] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6069] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6068] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6067] <... futex resumed>) = 1 [pid 6068] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6067] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6068] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6068] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6071] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6070] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6069] <... futex resumed>) = 0 [pid 6065] <... futex resumed>) = 0 [pid 6071] memfd_create("syzkaller", 0 [pid 6070] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 6069] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6065] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6071] <... memfd_create resumed>) = 5 [pid 6070] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 6065] <... futex resumed>) = 1 [pid 6071] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6070] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6065] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6070] <... futex resumed>) = 1 [pid 6069] <... futex resumed>) = 0 [pid 6071] <... mmap resumed>) = 0x7f0d62800000 [pid 6070] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6067] <... futex resumed>) = 0 [pid 6070] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6069] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6070] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 6069] <... futex resumed>) = 0 [pid 6067] ioctl(-1, BTRFS_IOC_RM_DEV, NULL) = -1 EBADF (Bad file descriptor) [pid 6070] <... openat resumed>) = 4 [pid 6069] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6070] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6069] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6070] <... futex resumed>) = 0 [pid 6069] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6070] read(-1, [pid 6069] <... futex resumed>) = 0 [pid 6070] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 6069] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6070] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6069] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6070] <... futex resumed>) = 0 [pid 6069] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6070] memfd_create("syzkaller", 0 [pid 6069] <... futex resumed>) = 0 [pid 6067] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6070] <... memfd_create resumed>) = 5 [pid 6069] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6067] <... futex resumed>) = 1 [pid 6065] <... futex resumed>) = 0 [pid 6070] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6065] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6070] <... mmap resumed>) = 0x7f0d62800000 [pid 6067] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 6065] <... futex resumed>) = 0 [pid 6067] <... openat resumed>) = 4 [pid 6067] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6067] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6065] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [ 106.400697][ T6073] NILFS (loop3): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 106.402097][ T6072] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 106.425438][ T6066] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 106.438346][ T6074] NILFS (loop2): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6070] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 6065] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6067] <... futex resumed>) = 0 [pid 6065] <... futex resumed>) = 1 [pid 6064] <... openat resumed>) = 6 [pid 6065] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6067] read(-1, [pid 6064] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6067] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 6067] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6065] <... futex resumed>) = 0 [pid 6067] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 6065] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6067] memfd_create("syzkaller", 0) = 5 [pid 6065] <... futex resumed>) = 0 [pid 6064] <... futex resumed>) = 1 [pid 6063] <... futex resumed>) = 0 [pid 6067] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6065] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6067] <... mmap resumed>) = 0x7f0d62800000 [pid 6067] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 6064] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6063] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6071] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 6067] <... write resumed>) = 524288 [pid 6067] munmap(0x7f0d62800000, 138412032 [pid 6070] <... write resumed>) = 524288 [pid 6067] <... munmap resumed>) = 0 [pid 6064] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6063] <... futex resumed>) = 0 [pid 6067] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6067] close(5) = 0 [pid 6064] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 6063] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6067] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6067] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6065] <... futex resumed>) = 0 [pid 6070] munmap(0x7f0d62800000, 138412032 [pid 6065] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6067] <... futex resumed>) = 0 [pid 6065] <... futex resumed>) = 1 [pid 6067] fsync(-1) = -1 EBADF (Bad file descriptor) [pid 6065] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6067] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6070] <... munmap resumed>) = 0 [pid 6067] <... futex resumed>) = 1 [pid 6065] <... futex resumed>) = 0 [pid 6067] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6070] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6065] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6070] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6065] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6067] <... openat resumed>) = 5 [pid 6067] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6065] <... futex resumed>) = 0 [pid 6067] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6070] close(5 [pid 6065] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6067] <... futex resumed>) = 0 [pid 6065] <... futex resumed>) = 1 [pid 6067] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 6070] <... close resumed>) = 0 [pid 6065] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6071] <... write resumed>) = 524288 [pid 5837] <... close resumed>) = 0 [pid 6071] munmap(0x7f0d62800000, 138412032 [pid 6070] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6071] <... munmap resumed>) = 0 [pid 6070] <... futex resumed>) = 1 [pid 6069] <... futex resumed>) = 0 ./strace-static-x86_64: Process 6075 attached [pid 6071] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6070] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6069] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6075] set_robust_list(0x55555fa3c6a0, 24 [pid 6071] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6070] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6069] <... futex resumed>) = 0 [pid 5837] <... clone resumed>, child_tidptr=0x55555fa3c690) = 31 [pid 6075] <... set_robust_list resumed>) = 0 [pid 6071] close(5 [pid 6070] fsync(-1 [pid 6069] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6075] chdir("./13" [pid 6071] <... close resumed>) = 0 [pid 6070] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 6075] <... chdir resumed>) = 0 [pid 6071] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6070] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6075] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6071] <... futex resumed>) = 1 [pid 6075] <... prctl resumed>) = 0 [pid 6070] <... futex resumed>) = 1 [pid 6071] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6069] <... futex resumed>) = 0 [pid 6068] <... futex resumed>) = 0 [pid 6070] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6069] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6068] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6075] setpgid(0, 0 [pid 6071] <... futex resumed>) = 0 [pid 6070] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6069] <... futex resumed>) = 0 [pid 6068] <... futex resumed>) = 1 [pid 6075] <... setpgid resumed>) = 0 [pid 6071] fsync(-1 [pid 6070] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6069] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6068] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6071] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 6071] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6070] <... openat resumed>) = 5 [pid 6071] <... futex resumed>) = 1 [pid 6070] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6068] <... futex resumed>) = 0 [pid 6075] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 6071] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6070] <... futex resumed>) = 1 [pid 6069] <... futex resumed>) = 0 [pid 6068] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6075] <... symlink resumed>) = 0 [pid 6071] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6070] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6069] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6068] <... futex resumed>) = 0 [pid 6075] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 6071] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6070] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6069] <... futex resumed>) = 0 [pid 6068] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6075] <... symlink resumed>) = 0 [pid 6070] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 6069] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6065] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6075] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 6065] futex(0x7f0d6aef46dc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6075] <... symlink resumed>) = 0 [pid 6065] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6075] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6071] <... openat resumed>) = 5 [pid 6067] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 6063] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [ 106.528297][ T6074] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6075] <... openat resumed>) = 3 [pid 6071] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6067] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6065] <... mmap resumed>) = 0x7f0d6adde000 [pid 6075] write(3, "1000", 4 [pid 6071] <... futex resumed>) = 1 [pid 6070] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 6068] <... futex resumed>) = 0 [pid 6067] <... futex resumed>) = 0 [pid 6065] mprotect(0x7f0d6addf000, 131072, PROT_READ|PROT_WRITE [pid 6075] <... write resumed>) = 4 [pid 6071] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6070] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6068] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6067] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6065] <... mprotect resumed>) = 0 [pid 6075] close(3 [pid 6071] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6070] <... futex resumed>) = 1 [pid 6069] <... futex resumed>) = 0 [pid 6068] <... futex resumed>) = 0 [pid 6075] <... close resumed>) = 0 [pid 6071] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 6070] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 6069] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6068] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6065] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6075] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6070] <... openat resumed>) = 6 [pid 6069] <... futex resumed>) = 0 [pid 6075] write(1, "executing program\n", 18executing program ) = 18 [pid 6070] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6069] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6065] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6075] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6070] <... futex resumed>) = 0 [pid 6069] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6065] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6adfe990, parent_tid=0x7f0d6adfe990, exit_signal=0, stack=0x7f0d6adde000, stack_size=0x20300, tls=0x7f0d6adfe6c0} [pid 6075] <... futex resumed>) = 0 [pid 6070] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6069] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 6076 attached [pid 6075] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, [pid 6070] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6069] <... futex resumed>) = 0 [pid 6076] rseq(0x7f0d6adfefe0, 0x20, 0, 0x53053053 [pid 6075] <... rt_sigaction resumed>NULL, 8) = 0 [pid 6070] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 6069] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6065] <... clone3 resumed> => {parent_tid=[33]}, 88) = 33 [pid 6076] <... rseq resumed>) = 0 [pid 6075] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 6065] rt_sigprocmask(SIG_SETMASK, [], [pid 6076] set_robust_list(0x7f0d6adfe9a0, 24) = 0 [pid 6075] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6065] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6075] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6076] rt_sigprocmask(SIG_SETMASK, [], [pid 6075] <... mmap resumed>) = 0x7f0d6adff000 [pid 6071] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 6065] futex(0x7f0d6aef46d8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6076] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6075] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE [pid 6071] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6065] <... futex resumed>) = 0 [ 106.568809][ T6072] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 106.604179][ T6073] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6076] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 6075] <... mprotect resumed>) = 0 [pid 6071] <... futex resumed>) = 1 [pid 6068] <... futex resumed>) = 0 [pid 6065] futex(0x7f0d6aef46dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6075] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6071] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 6068] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6076] <... openat resumed>) = 6 [pid 6075] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6071] <... openat resumed>) = 6 [pid 6068] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6076] futex(0x7f0d6aef46dc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6075] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0} [pid 6071] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6068] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) ./strace-static-x86_64: Process 6077 attached [pid 6076] <... futex resumed>) = 1 [pid 6071] <... futex resumed>) = 0 [pid 6068] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6065] <... futex resumed>) = 0 [pid 6077] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 6076] futex(0x7f0d6aef46d8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6075] <... clone3 resumed> => {parent_tid=[32]}, 88) = 32 [pid 6071] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 6068] <... futex resumed>) = 0 [pid 6065] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6077] <... rseq resumed>) = 0 [pid 6075] rt_sigprocmask(SIG_SETMASK, [], [pid 6069] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6077] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 6075] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6068] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6067] <... futex resumed>) = 0 [pid 6065] <... futex resumed>) = 1 [pid 6077] <... set_robust_list resumed>) = 0 [pid 6075] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6077] rt_sigprocmask(SIG_SETMASK, [], [pid 6075] <... futex resumed>) = 0 [pid 6077] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6075] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6077] memfd_create("syzkaller", 0 [pid 6067] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 6065] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6077] <... memfd_create resumed>) = 3 [pid 6077] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 [pid 6077] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6068] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6077] <... write resumed>) = 1048576 [pid 6064] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 6077] munmap(0x7f0d62800000, 138412032 [pid 6064] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6077] <... munmap resumed>) = 0 [pid 6064] <... futex resumed>) = 0 [pid 6077] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6064] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6063] close(3 [pid 6077] <... openat resumed>) = 4 [pid 6063] <... close resumed>) = 0 [pid 6077] ioctl(4, LOOP_SET_FD, 3 [pid 6063] close(4) = 0 [ 106.741989][ T6066] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6077] <... ioctl resumed>) = 0 [pid 6063] close(5 [pid 6077] close(3 [pid 6063] <... close resumed>) = 0 [pid 6077] <... close resumed>) = 0 [pid 6063] close(6 [pid 6077] close(4) = 0 [pid 6077] mkdir("./file2", 0777 [pid 6065] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6077] <... mkdir resumed>) = 0 [pid 6070] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 6063] <... close resumed>) = 0 [pid 6077] mount("/dev/loop4", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 6070] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6069] close(3 [pid 6063] close(7 [pid 6070] <... futex resumed>) = 0 [pid 6063] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6070] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6069] <... close resumed>) = 0 [pid 6063] close(8 [pid 6069] close(4) = 0 [pid 6063] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6069] close(5 [pid 6063] close(9 [pid 6069] <... close resumed>) = 0 [pid 6063] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6069] close(6) = 0 [pid 6063] close(10) = -1 EBADF (Bad file descriptor) [pid 6069] close(7 [pid 6063] close(11 [pid 6069] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6063] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6069] close(8 [pid 6063] close(12 [pid 6069] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6063] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6069] close(9 [pid 6063] close(13 [pid 6069] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6063] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6069] close(10 [pid 6063] close(14 [pid 6069] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6063] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6069] close(11 [pid 6063] close(15 [pid 6069] <... close resumed>) = -1 EBADF (Bad file descriptor) [ 106.782336][ T6077] loop4: detected capacity change from 0 to 2048 [ 106.790749][ T6072] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 106.813187][ T6077] NILFS (loop4): broken superblock, retrying with spare superblock (blocksize = 1024) [pid 6063] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6069] close(12 [pid 6063] close(16 [pid 6069] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6063] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6069] close(13 [pid 6063] close(17 [pid 6069] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6069] close(14 [pid 6063] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6069] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6069] close(15 [pid 6063] close(18 [pid 6069] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6063] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6069] close(16) = -1 EBADF (Bad file descriptor) [pid 6069] close(17 [pid 6063] close(19 [pid 6069] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6063] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6069] close(18 [pid 6063] close(20 [pid 6069] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6063] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6069] close(19 [pid 6063] close(21 [pid 6069] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6063] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6077] <... mount resumed>) = 0 [pid 6069] close(20 [pid 6063] close(22 [pid 6077] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 6069] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6077] <... openat resumed>) = 3 [pid 6069] close(21 [pid 6063] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6069] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6063] close(23 [pid 6077] chdir("./file2" [pid 6069] close(22 [pid 6063] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6069] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6063] close(24 [pid 6069] close(23 [pid 6063] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6069] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6063] close(25 [pid 6077] <... chdir resumed>) = 0 [pid 6069] close(24 [pid 6063] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6077] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6069] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6063] close(26 [pid 6077] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6077] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6069] close(25 [pid 6063] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6077] <... futex resumed>) = 1 [pid 6075] <... futex resumed>) = 0 [pid 6069] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6077] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6063] close(27 [pid 6077] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6075] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6069] close(26 [pid 6077] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 6063] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6077] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 6075] <... futex resumed>) = 0 [pid 6069] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6063] close(28 [pid 6077] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6075] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6069] close(27 [pid 6077] <... futex resumed>) = 0 [pid 6075] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6069] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6063] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6077] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6075] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6069] close(28 [pid 6063] close(29 [pid 6075] <... futex resumed>) = 0 [pid 6069] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6063] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6077] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6075] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6069] close(29 [pid 6063] exit_group(0 [pid 6077] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 6069] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6064] <... futex resumed>) = ? [pid 6063] <... exit_group resumed>) = ? [pid 6077] <... openat resumed>) = 4 [pid 6069] exit_group(0 [pid 6064] +++ exited with 0 +++ [pid 6063] +++ exited with 0 +++ [pid 6069] <... exit_group resumed>) = ? [pid 6070] <... futex resumed>) = ? [pid 6077] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6077] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6070] +++ exited with 0 +++ [pid 6069] +++ exited with 0 +++ [pid 6075] <... futex resumed>) = 0 [pid 6075] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=36, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=18 /* 0.18 s */} --- [pid 6077] <... futex resumed>) = 0 [pid 6075] <... futex resumed>) = 1 [pid 5834] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=35, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 5833] restart_syscall(<... resuming interrupted clone ...> [pid 6077] read(-1, [pid 6075] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5834] restart_syscall(<... resuming interrupted clone ...> [pid 6077] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 6077] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6075] <... futex resumed>) = 0 [pid 6077] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6075] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6077] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6075] <... futex resumed>) = 0 [pid 6077] memfd_create("syzkaller", 0 [pid 6075] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6077] <... memfd_create resumed>) = 5 [ 106.831470][ T5838] udevd[5838]: incorrect nilfs2 checksum on /dev/loop4 [ 106.851137][ T6078] NILFS (loop4): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6077] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5834] <... restart_syscall resumed>) = 0 [pid 5833] <... restart_syscall resumed>) = 0 [pid 6077] <... mmap resumed>) = 0x7f0d62800000 [pid 5834] umount2("./13", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5833] umount2("./13", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6077] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5834] openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6077] <... write resumed>) = 524288 [pid 6071] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 5834] <... openat resumed>) = 3 [pid 5833] openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6077] munmap(0x7f0d62800000, 138412032 [pid 5833] <... openat resumed>) = 3 [pid 6077] <... munmap resumed>) = 0 [pid 5833] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 5833] getdents64(3, [pid 6077] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5833] <... getdents64 resumed>0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 6077] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5833] umount2("./13/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6077] close(5 [pid 5833] <... umount2 resumed>) = -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" [pid 6071] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6067] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 5834] newfstatat(3, "", [pid 5833] <... unlink resumed>) = 0 [pid 6071] <... futex resumed>) = 0 [pid 5834] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 6071] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6067] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5834] getdents64(3, [pid 5833] umount2("./13/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6065] close(3 [pid 5834] <... getdents64 resumed>0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 6065] <... close resumed>) = 0 [pid 5834] umount2("./13/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6065] close(4 [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6068] close(3 [pid 6067] <... futex resumed>) = 0 [pid 6065] <... close resumed>) = 0 [pid 5834] newfstatat(AT_FDCWD, "./13/cgroup", [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6065] close(5 [pid 6068] <... close resumed>) = 0 [pid 6067] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6065] <... close resumed>) = 0 [pid 5834] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] newfstatat(AT_FDCWD, "./13/cgroup.cpu", [pid 6077] <... close resumed>) = 0 [pid 6065] close(6 [pid 5834] unlink("./13/cgroup" [pid 6077] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6075] <... futex resumed>) = 0 [pid 6068] close(4 [pid 6065] <... close resumed>) = 0 [pid 5834] <... unlink resumed>) = 0 [pid 5833] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5834] umount2("./13/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6077] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 6075] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6068] <... close resumed>) = 0 [pid 6065] close(7 [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5833] unlink("./13/cgroup.cpu" [pid 6077] fsync(-1 [pid 6075] <... futex resumed>) = 0 [pid 6077] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 5834] newfstatat(AT_FDCWD, "./13/cgroup.cpu", [pid 6077] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6075] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6065] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6077] <... futex resumed>) = 0 [pid 6075] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6065] close(8 [pid 5834] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6077] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6075] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6065] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5834] unlink("./13/cgroup.cpu" [pid 6077] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6075] <... futex resumed>) = 0 [pid 6065] close(9 [pid 6077] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6075] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6068] close(5 [pid 6065] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5834] <... unlink resumed>) = 0 [pid 5833] <... unlink resumed>) = 0 [pid 6068] <... close resumed>) = 0 [pid 6065] close(10 [pid 5834] umount2("./13/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5833] umount2("./13/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6065] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6065] close(11 [pid 5834] newfstatat(AT_FDCWD, "./13/cgroup.net", [pid 6065] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5834] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6065] close(12 [pid 5834] unlink("./13/cgroup.net" [pid 6065] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6068] close(6 [pid 6065] close(13 [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6065] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5834] <... unlink resumed>) = 0 [pid 6065] close(14 [pid 6068] <... close resumed>) = 0 [pid 6065] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5834] umount2("./13/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5833] newfstatat(AT_FDCWD, "./13/cgroup.net", [pid 6068] close(7 [pid 6065] close(15 [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5833] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6068] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6065] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5834] newfstatat(AT_FDCWD, "./13/binderfs", [pid 5833] unlink("./13/cgroup.net" [pid 6068] close(8 [pid 6065] close(16 [pid 5834] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] <... unlink resumed>) = 0 [pid 6068] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6065] <... close resumed>) = -1 EBADF (Bad file descriptor) [ 106.920713][ T6073] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 106.941717][ T6074] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5833] umount2("./13/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6068] close(9 [pid 6065] close(17 [pid 5834] unlink("./13/binderfs" [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6068] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5833] newfstatat(AT_FDCWD, "./13/binderfs", [pid 6068] close(10 [pid 6065] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5834] <... unlink resumed>) = 0 [pid 5833] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6068] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6065] close(18 [pid 5834] umount2("./13/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5833] unlink("./13/binderfs" [pid 6068] close(11 [pid 6065] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5833] <... unlink resumed>) = 0 [pid 6068] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5833] umount2("./13/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6068] close(12 [pid 6065] close(19 [pid 6068] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6068] close(13) = -1 EBADF (Bad file descriptor) [pid 6068] close(14) = -1 EBADF (Bad file descriptor) [pid 6068] close(15) = -1 EBADF (Bad file descriptor) [pid 6068] close(16) = -1 EBADF (Bad file descriptor) [pid 6068] close(17) = -1 EBADF (Bad file descriptor) [pid 6068] close(18) = -1 EBADF (Bad file descriptor) [pid 6068] close(19) = -1 EBADF (Bad file descriptor) [pid 6068] close(20) = -1 EBADF (Bad file descriptor) [pid 6068] close(21) = -1 EBADF (Bad file descriptor) [pid 6068] close(22) = -1 EBADF (Bad file descriptor) [pid 6068] close(23) = -1 EBADF (Bad file descriptor) [pid 6068] close(24) = -1 EBADF (Bad file descriptor) [pid 6068] close(25) = -1 EBADF (Bad file descriptor) [pid 6068] close(26) = -1 EBADF (Bad file descriptor) [pid 6068] close(27) = -1 EBADF (Bad file descriptor) [pid 6068] close(28) = -1 EBADF (Bad file descriptor) [pid 6068] close(29) = -1 EBADF (Bad file descriptor) [pid 6068] exit_group(0) = ? [pid 6077] <... openat resumed>) = 5 [pid 6071] <... futex resumed>) = ? [pid 6065] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6077] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6077] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6071] +++ exited with 0 +++ [pid 6068] +++ exited with 0 +++ [pid 6065] close(20) = -1 EBADF (Bad file descriptor) [pid 6065] close(21 [pid 5835] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=29, si_uid=0, si_status=0, si_utime=0, si_stime=22 /* 0.22 s */} --- [pid 6065] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5835] restart_syscall(<... resuming interrupted clone ...> [pid 6065] close(22) = -1 EBADF (Bad file descriptor) [pid 6065] close(23) = -1 EBADF (Bad file descriptor) [pid 6065] close(24) = -1 EBADF (Bad file descriptor) [pid 5835] <... restart_syscall resumed>) = 0 [pid 6065] close(25) = -1 EBADF (Bad file descriptor) [pid 6065] close(26 [pid 5835] umount2("./12", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6065] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6075] <... futex resumed>) = 0 [pid 6065] close(27 [pid 5835] openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6075] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6065] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5835] <... openat resumed>) = 3 [pid 6077] <... futex resumed>) = 0 [pid 6075] <... futex resumed>) = 1 [pid 6065] close(28 [pid 5835] newfstatat(3, "", [pid 6077] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 6075] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6065] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5835] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [ 106.972876][ T6066] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 106.984312][ T6072] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 106.984796][ T6066] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 106.996120][ T6072] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6065] close(29 [pid 5835] getdents64(3, [pid 6065] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5835] <... getdents64 resumed>0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 6065] exit_group(0 [pid 5835] umount2("./12/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6076] <... futex resumed>) = ? [pid 6067] <... futex resumed>) = ? [pid 6065] <... exit_group resumed>) = ? [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6076] +++ exited with 0 +++ [pid 6067] +++ exited with 0 +++ [pid 6065] +++ exited with 0 +++ [pid 5835] newfstatat(AT_FDCWD, "./12/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5836] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=31, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 5835] unlink("./12/cgroup" [pid 5836] restart_syscall(<... resuming interrupted clone ...> [pid 5835] <... unlink resumed>) = 0 [pid 5835] umount2("./12/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5835] newfstatat(AT_FDCWD, "./12/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5836] <... restart_syscall resumed>) = 0 [pid 5835] unlink("./12/cgroup.cpu") = 0 [pid 5835] umount2("./12/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5836] umount2("./12", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5835] newfstatat(AT_FDCWD, "./12/cgroup.net", [pid 5836] openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5835] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5836] <... openat resumed>) = 3 [ 107.009411][ T6066] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 107.030299][ T6066] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 107.036192][ T6078] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 107.041472][ T6066] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5835] unlink("./12/cgroup.net" [pid 6075] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5836] newfstatat(3, "", [pid 6075] futex(0x7f0d6aef46dc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5836] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 5835] <... unlink resumed>) = 0 [pid 6075] <... futex resumed>) = 0 [pid 5836] getdents64(3, [pid 5835] umount2("./12/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6075] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5836] <... getdents64 resumed>0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6075] <... mmap resumed>) = 0x7f0d6adde000 [pid 5836] umount2("./12/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5835] newfstatat(AT_FDCWD, "./12/binderfs", [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5835] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5836] newfstatat(AT_FDCWD, "./12/cgroup", [pid 5835] unlink("./12/binderfs" [pid 6075] mprotect(0x7f0d6addf000, 131072, PROT_READ|PROT_WRITE [pid 5836] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5835] <... unlink resumed>) = 0 [pid 6075] <... mprotect resumed>) = 0 [pid 5836] unlink("./12/cgroup" [pid 5835] umount2("./12/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6075] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5836] <... unlink resumed>) = 0 [pid 6075] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5836] umount2("./12/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6075] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6adfe990, parent_tid=0x7f0d6adfe990, exit_signal=0, stack=0x7f0d6adde000, stack_size=0x20300, tls=0x7f0d6adfe6c0} [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 6079 attached [pid 5836] newfstatat(AT_FDCWD, "./12/cgroup.cpu", [pid 6079] rseq(0x7f0d6adfefe0, 0x20, 0, 0x53053053 [pid 6075] <... clone3 resumed> => {parent_tid=[33]}, 88) = 33 [pid 5836] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6079] <... rseq resumed>) = 0 [pid 6075] rt_sigprocmask(SIG_SETMASK, [], [pid 5836] unlink("./12/cgroup.cpu" [pid 6079] set_robust_list(0x7f0d6adfe9a0, 24 [pid 6075] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5836] <... unlink resumed>) = 0 [pid 6079] <... set_robust_list resumed>) = 0 [pid 6075] futex(0x7f0d6aef46d8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5836] umount2("./12/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6079] rt_sigprocmask(SIG_SETMASK, [], [pid 6075] <... futex resumed>) = 0 [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6079] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6075] futex(0x7f0d6aef46dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5836] newfstatat(AT_FDCWD, "./12/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [ 107.058813][ T6072] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 107.064335][ T6066] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 107.088735][ T6066] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 107.100287][ T6066] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 107.103471][ T6073] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5836] unlink("./12/cgroup.net" [pid 6079] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 6077] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 5836] <... unlink resumed>) = 0 [pid 6077] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5836] umount2("./12/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5836] newfstatat(AT_FDCWD, "./12/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5836] unlink("./12/binderfs" [pid 6077] <... futex resumed>) = 0 [pid 5836] <... unlink resumed>) = 0 [pid 6077] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [ 107.112233][ T6066] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 107.135086][ T6074] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 107.135363][ T6072] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 107.146285][ T6074] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5836] umount2("./12/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6079] <... openat resumed>) = 6 [pid 6079] futex(0x7f0d6aef46dc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6075] <... futex resumed>) = 0 [pid 6079] futex(0x7f0d6aef46d8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6075] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6077] <... futex resumed>) = 0 [pid 6075] <... futex resumed>) = 1 [pid 6077] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [ 107.167842][ T6066] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 107.180568][ T6066] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 107.189952][ T6074] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 107.191796][ T6072] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 107.209896][ T6074] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6075] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [ 107.212301][ T6073] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 107.229766][ T6074] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 107.233166][ T6066] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 107.256376][ T6073] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 107.259785][ T6074] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 107.267648][ T6066] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 107.288701][ T6072] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 107.289373][ T6073] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 107.309969][ T6074] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 107.310683][ T6066] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 107.329889][ T6074] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 107.333358][ T6073] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 107.343606][ T6072] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 107.355645][ T6066] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 107.375979][ T6074] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 107.376567][ T6073] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 107.397187][ T6074] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 107.397384][ T6074] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 107.408541][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 107.429677][ T6072] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 107.441441][ T6072] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 107.444271][ T6073] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 107.452757][ T6078] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 107.463210][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 107.473975][ T6074] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 107.484724][ T6073] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 107.494550][ T6072] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 107.505468][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6077] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 6077] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6075] close(3 [pid 6077] <... futex resumed>) = 0 [pid 6075] <... close resumed>) = 0 [pid 6077] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6075] close(4) = 0 [pid 6075] close(5) = 0 [pid 6075] close(6) = 0 [pid 6075] close(7) = -1 EBADF (Bad file descriptor) [pid 6075] close(8) = -1 EBADF (Bad file descriptor) [pid 6075] close(9) = -1 EBADF (Bad file descriptor) [pid 6075] close(10) = -1 EBADF (Bad file descriptor) [pid 6075] close(11) = -1 EBADF (Bad file descriptor) [pid 6075] close(12) = -1 EBADF (Bad file descriptor) [pid 6075] close(13) = -1 EBADF (Bad file descriptor) [pid 6075] close(14) = -1 EBADF (Bad file descriptor) [pid 6075] close(15) = -1 EBADF (Bad file descriptor) [pid 6075] close(16) = -1 EBADF (Bad file descriptor) [pid 6075] close(17) = -1 EBADF (Bad file descriptor) [pid 6075] close(18) = -1 EBADF (Bad file descriptor) [pid 6075] close(19) = -1 EBADF (Bad file descriptor) [pid 6075] close(20) = -1 EBADF (Bad file descriptor) [pid 6075] close(21) = -1 EBADF (Bad file descriptor) [pid 6075] close(22) = -1 EBADF (Bad file descriptor) [pid 6075] close(23) = -1 EBADF (Bad file descriptor) [pid 6075] close(24) = -1 EBADF (Bad file descriptor) [pid 6075] close(25) = -1 EBADF (Bad file descriptor) [pid 6075] close(26) = -1 EBADF (Bad file descriptor) [pid 6075] close(27) = -1 EBADF (Bad file descriptor) [pid 6075] close(28) = -1 EBADF (Bad file descriptor) [pid 6075] close(29) = -1 EBADF (Bad file descriptor) [pid 6075] exit_group(0) = ? [pid 6079] <... futex resumed>) = ? [pid 6077] <... futex resumed>) = ? [pid 6077] +++ exited with 0 +++ [ 107.515700][ T6072] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 107.535314][ T6073] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 107.537290][ T6074] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 107.548664][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6079] +++ exited with 0 +++ [pid 6075] +++ exited with 0 +++ [ 107.568869][ T6073] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 107.580363][ T6073] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 107.580489][ T6072] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 107.591435][ T6074] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 107.602703][ T5834] NILFS (loop1): disposed unprocessed dirty file(s) when stopping log writer [pid 5837] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=31, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 5837] umount2("./13", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 107.612758][ T6072] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 107.621960][ T6073] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 107.632737][ T6074] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 107.654773][ T6072] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 107.659762][ T6073] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5837] openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5837] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [ 107.666505][ T6072] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 107.677384][ T5836] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 107.687451][ T5833] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 107.701495][ T6073] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5837] getdents64(3, 0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 5837] umount2("./13/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5836] <... umount2 resumed>) = 0 [pid 5834] <... umount2 resumed>) = 0 [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 107.720919][ T5836] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 107.731756][ T5833] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 107.732291][ T5836] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 107.744221][ T5833] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 107.752973][ T5836] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5836] umount2("./12/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5837] newfstatat(AT_FDCWD, "./13/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5837] unlink("./13/cgroup") = 0 [pid 5836] newfstatat(AT_FDCWD, "./12/file2", [pid 5837] umount2("./13/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5836] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5837] newfstatat(AT_FDCWD, "./13/cgroup.cpu", [pid 5836] umount2("./12/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5837] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5837] unlink("./13/cgroup.cpu") = 0 [pid 5836] openat(AT_FDCWD, "./12/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5837] umount2("./13/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5836] <... openat resumed>) = 4 [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5837] newfstatat(AT_FDCWD, "./13/cgroup.net", [pid 5836] newfstatat(4, "", [pid 5837] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5836] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 5837] unlink("./13/cgroup.net") = 0 [pid 5836] getdents64(4, [pid 5837] umount2("./13/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5836] <... getdents64 resumed>0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5837] newfstatat(AT_FDCWD, "./13/binderfs", [pid 5836] getdents64(4, [pid 5837] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5836] <... getdents64 resumed>0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 5837] unlink("./13/binderfs") = 0 [pid 5836] close(4 [pid 5837] umount2("./13/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5836] <... close resumed>) = 0 [pid 5836] rmdir("./12/file2") = 0 [pid 5836] getdents64(3, 0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 5836] close(3) = 0 [pid 5836] rmdir("./12") = 0 [pid 5836] mkdir("./13", 0777) = 0 [pid 5836] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5836] ioctl(3, LOOP_CLR_FD) = 0 [ 107.753036][ T5836] NILFS (loop2): disposed unprocessed dirty file(s) when stopping log writer [ 107.783429][ T5833] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 107.795691][ T5833] NILFS (loop0): disposed unprocessed dirty file(s) when stopping log writer [ 107.798724][ T6073] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5836] close(3) = 0 [pid 5834] umount2("./13/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5833] <... umount2 resumed>) = 0 [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5836] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5833] umount2("./13/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5834] newfstatat(AT_FDCWD, "./13/file2", [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5834] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] newfstatat(AT_FDCWD, "./13/file2", [pid 5836] <... clone resumed>, child_tidptr=0x55555fa3c690) = 34 [pid 5834] umount2("./13/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5833] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5833] umount2("./13/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5834] openat(AT_FDCWD, "./13/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5834] <... openat resumed>) = 4 [pid 5833] openat(AT_FDCWD, "./13/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5834] newfstatat(4, "", [pid 5833] <... openat resumed>) = 4 [pid 5834] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 5833] newfstatat(4, "", [pid 5834] getdents64(4, [pid 5833] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 5834] <... getdents64 resumed>0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 5833] getdents64(4, [pid 5834] getdents64(4, [pid 5833] <... getdents64 resumed>0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 5834] <... getdents64 resumed>0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 5833] getdents64(4, [pid 5834] close(4 [pid 5833] <... getdents64 resumed>0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 5834] <... close resumed>) = 0 [pid 5833] close(4 [pid 5834] rmdir("./13/file2" [pid 5833] <... close resumed>) = 0 [pid 5834] <... rmdir resumed>) = 0 [pid 5833] rmdir("./13/file2" [pid 5834] getdents64(3, [pid 5833] <... rmdir resumed>) = 0 [pid 5834] <... getdents64 resumed>0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 5833] getdents64(3, [pid 5834] close(3 [pid 5833] <... getdents64 resumed>0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 5834] <... close resumed>) = 0 [pid 5833] close(3 [pid 5834] rmdir("./13" [pid 5833] <... close resumed>) = 0 [pid 5834] <... rmdir resumed>) = 0 [pid 5833] rmdir("./13" [pid 5834] mkdir("./14", 0777 [pid 5833] <... rmdir resumed>) = 0 [pid 5834] <... mkdir resumed>) = 0 [pid 5833] mkdir("./14", 0777 [pid 5834] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5833] <... mkdir resumed>) = 0 [pid 5834] <... openat resumed>) = 3 [pid 5833] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5834] ioctl(3, LOOP_CLR_FD [pid 5833] <... openat resumed>) = 3 [ 107.830495][ T6078] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 107.850021][ T5835] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 107.860969][ T5835] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5834] <... ioctl resumed>) = 0 [pid 5833] ioctl(3, LOOP_CLR_FD [pid 5834] close(3 [pid 5833] <... ioctl resumed>) = 0 [pid 5834] <... close resumed>) = 0 [pid 5834] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5833] close(3./strace-static-x86_64: Process 6081 attached ) = 0 [pid 6081] set_robust_list(0x55555fa3c6a0, 24 [pid 5834] <... clone resumed>, child_tidptr=0x55555fa3c690) = 37 [pid 5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6082 attached [pid 6081] <... set_robust_list resumed>) = 0 [pid 6082] set_robust_list(0x55555fa3c6a0, 24 [pid 6081] chdir("./14" [pid 5833] <... clone resumed>, child_tidptr=0x55555fa3c690) = 38 [pid 6082] <... set_robust_list resumed>) = 0 [pid 6081] <... chdir resumed>) = 0 [pid 6082] chdir("./14" [pid 6081] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6082] <... chdir resumed>) = 0 [pid 6081] <... prctl resumed>) = 0 [pid 6082] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6081] setpgid(0, 0 [pid 6082] <... prctl resumed>) = 0 [pid 6081] <... setpgid resumed>) = 0 ./strace-static-x86_64: Process 6080 attached [pid 6082] setpgid(0, 0 [pid 6081] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 6082] <... setpgid resumed>) = 0 [pid 6081] <... symlink resumed>) = 0 [pid 6082] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 6081] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 6082] <... symlink resumed>) = 0 [pid 6081] <... symlink resumed>) = 0 [pid 6080] set_robust_list(0x55555fa3c6a0, 24) = 0 [pid 6082] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 6081] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 6080] chdir("./13" [pid 6082] <... symlink resumed>) = 0 [pid 6081] <... symlink resumed>) = 0 [pid 6080] <... chdir resumed>) = 0 [ 107.871701][ T5835] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 107.882414][ T5835] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 107.893163][ T5835] NILFS (loop3): disposed unprocessed dirty file(s) when stopping log writer [ 107.920162][ T6078] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6082] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 6081] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6080] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6082] <... symlink resumed>) = 0 [pid 6081] <... openat resumed>) = 3 [pid 6080] setpgid(0, 0 [pid 5835] <... umount2 resumed>) = 0 [pid 6080] <... setpgid resumed>) = 0 [pid 5835] umount2("./12/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6082] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6081] write(3, "1000", 4 [pid 6082] write(3, "1000", 4 [pid 6081] <... write resumed>) = 4 [pid 6082] <... write resumed>) = 4 [pid 6081] close(3 [pid 6082] close(3 [pid 6081] <... close resumed>) = 0 [pid 6082] <... close resumed>) = 0 [pid 6081] symlink("/dev/binderfs", "./binderfs" [pid 6082] symlink("/dev/binderfs", "./binderfs" [pid 6081] <... symlink resumed>) = 0 executing program [pid 6082] <... symlink resumed>) = 0 [pid 6081] write(1, "executing program\n", 18 [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) executing program [pid 6082] write(1, "executing program\n", 18 [pid 6081] <... write resumed>) = 18 [pid 5835] newfstatat(AT_FDCWD, "./12/file2", [pid 6082] <... write resumed>) = 18 [pid 6081] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6082] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6081] <... futex resumed>) = 0 [pid 6082] <... futex resumed>) = 0 [pid 6081] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, [pid 6082] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, [pid 6081] <... rt_sigaction resumed>NULL, 8) = 0 [pid 6082] <... rt_sigaction resumed>NULL, 8) = 0 [pid 6081] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5835] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6082] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 6081] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6080] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5835] umount2("./12/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6082] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6081] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6080] <... symlink resumed>) = 0 [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6082] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6081] <... mmap resumed>) = 0x7f0d6adff000 [pid 6080] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5835] openat(AT_FDCWD, "./12/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6082] <... mmap resumed>) = 0x7f0d6adff000 [pid 6081] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE [pid 6080] <... symlink resumed>) = 0 [pid 6082] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE [pid 6081] <... mprotect resumed>) = 0 [pid 6080] symlink("/syzcgroup/net/syz2", "./cgroup.net" [ 107.950743][ T6078] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 107.980563][ T6078] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6082] <... mprotect resumed>) = 0 [pid 6081] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6080] <... symlink resumed>) = 0 [pid 5835] <... openat resumed>) = 4 [pid 6082] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6081] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5835] newfstatat(4, "", [pid 6082] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6081] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0} [pid 6080] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5835] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 ./strace-static-x86_64: Process 6083 attached [pid 6082] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0} [pid 6080] <... openat resumed>) = 3 [pid 5835] getdents64(4, ./strace-static-x86_64: Process 6084 attached [pid 6083] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 6081] <... clone3 resumed> => {parent_tid=[38]}, 88) = 38 [pid 6080] write(3, "1000", 4 [pid 5835] <... getdents64 resumed>0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 6084] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 6083] <... rseq resumed>) = 0 [pid 6082] <... clone3 resumed> => {parent_tid=[39]}, 88) = 39 [pid 6081] rt_sigprocmask(SIG_SETMASK, [], [pid 6080] <... write resumed>) = 4 [pid 5835] getdents64(4, [pid 6084] <... rseq resumed>) = 0 [pid 6083] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 6082] rt_sigprocmask(SIG_SETMASK, [], [pid 6081] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6080] close(3 [pid 5835] <... getdents64 resumed>0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 6084] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 6083] <... set_robust_list resumed>) = 0 [pid 6082] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6081] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5835] close(4 [pid 6084] <... set_robust_list resumed>) = 0 [pid 6083] rt_sigprocmask(SIG_SETMASK, [], [pid 6082] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6081] <... futex resumed>) = 0 [pid 6080] <... close resumed>) = 0 [pid 5835] <... close resumed>) = 0 [pid 6084] rt_sigprocmask(SIG_SETMASK, [], [pid 6083] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6082] <... futex resumed>) = 0 [pid 6081] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5835] rmdir("./12/file2" [pid 6084] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6083] memfd_create("syzkaller", 0 [pid 6082] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6080] symlink("/dev/binderfs", "./binderfs" [pid 6084] memfd_create("syzkaller", 0 [pid 6083] <... memfd_create resumed>) = 3 [pid 5835] <... rmdir resumed>) = 0 [pid 6084] <... memfd_create resumed>) = 3 [pid 6083] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6080] <... symlink resumed>) = 0 [pid 5835] getdents64(3, [pid 6084] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6083] <... mmap resumed>) = 0x7f0d62800000 [pid 5835] <... getdents64 resumed>0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 6083] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5835] close(3) = 0 [pid 5835] rmdir("./12") = 0 [pid 5835] mkdir("./13", 0777) = 0 [pid 5835] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5835] ioctl(3, LOOP_CLR_FD) = 0 [pid 5835] close(3) = 0 [ 108.004430][ T6078] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 108.031266][ T6078] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 executing program [pid 6084] <... mmap resumed>) = 0x7f0d62800000 [pid 6083] <... write resumed>) = 1048576 [pid 6080] write(1, "executing program\n", 18 [pid 5835] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6084] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6083] munmap(0x7f0d62800000, 138412032 [pid 6080] <... write resumed>) = 18 ./strace-static-x86_64: Process 6085 attached [pid 6083] <... munmap resumed>) = 0 [pid 6080] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5835] <... clone resumed>, child_tidptr=0x55555fa3c690) = 31 [pid 6085] set_robust_list(0x55555fa3c6a0, 24 [pid 6084] <... write resumed>) = 1048576 [pid 6083] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6080] <... futex resumed>) = 0 [ 108.054992][ T6078] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 108.074084][ T6078] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6085] <... set_robust_list resumed>) = 0 [pid 6084] munmap(0x7f0d62800000, 138412032 [pid 6083] <... openat resumed>) = 4 [pid 6080] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, [pid 6083] ioctl(4, LOOP_SET_FD, 3 [pid 6085] chdir("./13" [pid 6084] <... munmap resumed>) = 0 [pid 6080] <... rt_sigaction resumed>NULL, 8) = 0 [pid 6085] <... chdir resumed>) = 0 [pid 6084] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6080] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 6085] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6084] <... openat resumed>) = 4 [pid 6080] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6085] <... prctl resumed>) = 0 [pid 6084] ioctl(4, LOOP_SET_FD, 3 [pid 6080] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6085] setpgid(0, 0 [pid 6083] <... ioctl resumed>) = 0 [pid 6083] close(3) = 0 [ 108.097432][ T6078] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 108.108634][ T6078] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 108.119887][ T6078] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 108.131013][ T6078] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 108.132824][ T6083] loop1: detected capacity change from 0 to 2048 [ 108.145708][ T6084] loop0: detected capacity change from 0 to 2048 [pid 6083] close(4 [pid 6085] <... setpgid resumed>) = 0 [pid 6083] <... close resumed>) = 0 [pid 6080] <... mmap resumed>) = 0x7f0d6adff000 [pid 6083] mkdir("./file2", 0777 [pid 6085] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 6084] <... ioctl resumed>) = 0 [pid 6083] <... mkdir resumed>) = 0 [pid 6080] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE [pid 6083] mount("/dev/loop1", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 6085] <... symlink resumed>) = 0 [pid 6080] <... mprotect resumed>) = 0 [ 108.155686][ T6078] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 108.171635][ T6078] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 108.185359][ T6078] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 108.186687][ T6083] NILFS (loop1): broken superblock, retrying with spare superblock (blocksize = 1024) executing program [pid 6085] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 6084] close(3 [pid 6080] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6085] <... symlink resumed>) = 0 [pid 6084] <... close resumed>) = 0 [pid 6080] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6085] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 6084] close(4 [pid 6080] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0} [pid 6085] <... symlink resumed>) = 0 [pid 6084] <... close resumed>) = 0 [pid 6085] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6084] mkdir("./file2", 0777 [pid 6080] <... clone3 resumed> => {parent_tid=[35]}, 88) = 35 [pid 6085] <... openat resumed>) = 3 [pid 6084] <... mkdir resumed>) = 0 [pid 6080] rt_sigprocmask(SIG_SETMASK, [], [pid 6085] write(3, "1000", 4 [pid 6084] mount("/dev/loop0", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 6080] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6085] <... write resumed>) = 4 [pid 6080] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6085] close(3 [pid 6080] <... futex resumed>) = 0 [pid 6085] <... close resumed>) = 0 [pid 6080] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6085] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6085] write(1, "executing program\n", 18) = 18 [pid 6085] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6085] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, NULL, 8) = 0 [pid 6085] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], ./strace-static-x86_64: Process 6086 attached NULL, 8) = 0 [pid 6086] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 6085] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0d6adff000 [pid 6085] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6085] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6085] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0}./strace-static-x86_64: Process 6087 attached [pid 6087] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 6085] <... clone3 resumed> => {parent_tid=[32]}, 88) = 32 [pid 6087] <... rseq resumed>) = 0 [pid 6085] rt_sigprocmask(SIG_SETMASK, [], [pid 6087] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 6085] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6087] <... set_robust_list resumed>) = 0 [pid 6085] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6087] rt_sigprocmask(SIG_SETMASK, [], [pid 6085] <... futex resumed>) = 0 [pid 6087] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6085] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6087] memfd_create("syzkaller", 0) = 3 [pid 6087] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 [ 108.206248][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 108.221292][ T6084] NILFS (loop0): broken superblock, retrying with spare superblock (blocksize = 1024) [ 108.236426][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6087] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6086] <... rseq resumed>) = 0 [pid 6083] <... mount resumed>) = 0 [pid 6087] <... write resumed>) = 1048576 [pid 6087] munmap(0x7f0d62800000, 138412032) = 0 [pid 6087] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 6087] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6086] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 6083] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 6087] close(3 [pid 6086] <... set_robust_list resumed>) = 0 [pid 6083] <... openat resumed>) = 3 [pid 6087] <... close resumed>) = 0 [pid 6087] close(4 [pid 6086] rt_sigprocmask(SIG_SETMASK, [], [ 108.238765][ T6088] NILFS (loop1): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 108.258882][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 108.268257][ T6087] loop3: detected capacity change from 0 to 2048 [ 108.270934][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 108.276831][ T5838] udevd[5838]: incorrect nilfs2 checksum on /dev/loop1 [ 108.287673][ T5837] NILFS (loop4): disposed unprocessed dirty file(s) when stopping log writer [pid 6083] chdir("./file2" [pid 6087] <... close resumed>) = 0 [pid 6086] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6083] <... chdir resumed>) = 0 [pid 6087] mkdir("./file2", 0777 [pid 6086] memfd_create("syzkaller", 0 [pid 6083] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6087] <... mkdir resumed>) = 0 [pid 6086] <... memfd_create resumed>) = 3 [pid 6083] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6086] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6083] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6087] mount("/dev/loop3", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 6086] <... mmap resumed>) = 0x7f0d62800000 [pid 6083] <... futex resumed>) = 1 [pid 6081] <... futex resumed>) = 0 [pid 6083] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6081] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6086] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6083] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6081] <... futex resumed>) = 0 [pid 6083] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 6081] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6083] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 6083] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6081] <... futex resumed>) = 0 [pid 6083] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6081] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6083] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6081] <... futex resumed>) = 0 [pid 6083] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 6081] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6084] <... mount resumed>) = 0 [pid 6083] <... openat resumed>) = 4 [pid 6086] <... write resumed>) = 1048576 [pid 6084] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 6086] munmap(0x7f0d62800000, 138412032 [pid 6084] <... openat resumed>) = 3 [pid 6086] <... munmap resumed>) = 0 [pid 6084] chdir("./file2" [pid 6086] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 6084] <... chdir resumed>) = 0 [pid 6086] <... openat resumed>) = 4 [pid 6084] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6086] ioctl(4, LOOP_SET_FD, 3 [pid 6084] <... openat resumed>) = -1 EBUSY (Device or resource busy) [ 108.304959][ T6089] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 108.337192][ T6087] NILFS (loop3): broken superblock, retrying with spare superblock (blocksize = 1024) [pid 6086] <... ioctl resumed>) = 0 [pid 6084] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6083] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6086] close(3 [pid 6084] <... futex resumed>) = 1 [pid 6083] <... futex resumed>) = 1 [pid 6082] <... futex resumed>) = 0 [pid 6081] <... futex resumed>) = 0 [pid 5837] <... umount2 resumed>) = 0 [pid 6086] <... close resumed>) = 0 [pid 6084] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6083] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6082] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6081] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] umount2("./13/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6086] close(4 [pid 6084] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6083] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6082] <... futex resumed>) = 0 [pid 6081] <... futex resumed>) = 0 [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6086] <... close resumed>) = 0 [pid 6084] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 6083] read(-1, [pid 6082] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6081] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5837] newfstatat(AT_FDCWD, "./13/file2", [pid 6086] mkdir("./file2", 0777 [pid 6084] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 6083] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 5837] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6086] <... mkdir resumed>) = 0 [pid 6084] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6083] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] umount2("./13/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6086] mount("/dev/loop2", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 6084] <... futex resumed>) = 1 [pid 6083] <... futex resumed>) = 1 [pid 6082] <... futex resumed>) = 0 [pid 6081] <... futex resumed>) = 0 [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6084] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6083] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6082] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6081] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] openat(AT_FDCWD, "./13/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6084] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6083] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6082] <... futex resumed>) = 0 [pid 6081] <... futex resumed>) = 0 [pid 5837] <... openat resumed>) = 4 [pid 6084] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 6083] memfd_create("syzkaller", 0 [pid 6082] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6081] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5837] newfstatat(4, "", [pid 6084] <... openat resumed>) = 4 [pid 6083] <... memfd_create resumed>) = 5 [pid 5837] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [ 108.364282][ T6086] loop2: detected capacity change from 0 to 2048 [ 108.376585][ T6090] NILFS (loop3): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6084] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6083] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5837] getdents64(4, [pid 6084] <... futex resumed>) = 1 [pid 6083] <... mmap resumed>) = 0x7f0d62800000 [pid 6082] <... futex resumed>) = 0 [pid 5837] <... getdents64 resumed>0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 6087] <... mount resumed>) = 0 [pid 6083] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 6087] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 6084] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6083] <... write resumed>) = 524288 [pid 6082] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] getdents64(4, [pid 6084] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6082] <... futex resumed>) = 0 [pid 5837] <... getdents64 resumed>0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 6084] read(-1, [pid 6082] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5837] close(4 [pid 6084] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 6083] munmap(0x7f0d62800000, 138412032 [pid 5837] <... close resumed>) = 0 [pid 6084] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] rmdir("./13/file2" [pid 6084] <... futex resumed>) = 1 [pid 6082] <... futex resumed>) = 0 [pid 5837] <... rmdir resumed>) = 0 [pid 6084] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6082] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] getdents64(3, [pid 6084] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6082] <... futex resumed>) = 0 [pid 5837] <... getdents64 resumed>0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 6084] memfd_create("syzkaller", 0 [pid 6082] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5837] close(3 [pid 6084] <... memfd_create resumed>) = 5 [pid 5837] <... close resumed>) = 0 [pid 6084] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5837] rmdir("./13" [pid 6087] <... openat resumed>) = 3 [pid 6084] <... mmap resumed>) = 0x7f0d62800000 [pid 6083] <... munmap resumed>) = 0 [pid 5837] <... rmdir resumed>) = 0 [pid 6087] chdir("./file2") = 0 [pid 6084] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 6083] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5837] mkdir("./14", 0777 [pid 6087] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6086] <... mount resumed>) = 0 [pid 6084] <... write resumed>) = 524288 [pid 6083] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5837] <... mkdir resumed>) = 0 [pid 6086] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 6084] munmap(0x7f0d62800000, 138412032 [pid 6083] close(5 [pid 5837] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6087] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6086] <... openat resumed>) = 3 [pid 6084] <... munmap resumed>) = 0 [pid 6083] <... close resumed>) = 0 [pid 5837] <... openat resumed>) = 3 [pid 6087] <... futex resumed>) = 1 [pid 6086] chdir("./file2" [pid 6085] <... futex resumed>) = 0 [pid 6084] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6083] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] ioctl(3, LOOP_CLR_FD [pid 6087] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6086] <... chdir resumed>) = 0 [pid 6085] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6084] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6083] <... futex resumed>) = 1 [pid 6081] <... futex resumed>) = 0 [pid 5837] <... ioctl resumed>) = 0 [pid 6087] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6086] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 6085] <... futex resumed>) = 0 [pid 6084] close(5 [pid 6083] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6081] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] close(3 [pid 6087] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 6085] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6087] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 6087] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6085] <... futex resumed>) = 0 [pid 6087] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6085] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6087] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6085] <... futex resumed>) = 0 [pid 6087] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 6085] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6087] <... openat resumed>) = 4 [pid 6087] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6085] <... futex resumed>) = 0 [pid 6087] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6085] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6087] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6085] <... futex resumed>) = 0 [pid 6084] <... close resumed>) = 0 [pid 6087] read(-1, [pid 6085] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6087] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 6087] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6085] <... futex resumed>) = 0 [pid 6087] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6085] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6087] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6085] <... futex resumed>) = 0 [pid 6087] memfd_create("syzkaller", 0 [pid 6085] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6087] <... memfd_create resumed>) = 5 [pid 6086] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6084] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6083] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6081] <... futex resumed>) = 0 [pid 5837] <... close resumed>) = 0 [pid 6087] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5837] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6092 attached [pid 6087] <... mmap resumed>) = 0x7f0d62800000 [ 108.408214][ T6086] NILFS (loop2): broken superblock, retrying with spare superblock (blocksize = 1024) [ 108.420727][ T5855] udevd[5855]: incorrect nilfs2 checksum on /dev/loop2 [ 108.445450][ T6091] NILFS (loop2): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6092] set_robust_list(0x55555fa3c6a0, 24 [pid 6087] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 6086] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6084] <... futex resumed>) = 1 [pid 6083] fsync(-1 [pid 6082] <... futex resumed>) = 0 [pid 6081] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5837] <... clone resumed>, child_tidptr=0x55555fa3c690) = 34 [pid 6086] <... futex resumed>) = 1 [pid 6084] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6083] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 6080] <... futex resumed>) = 0 [pid 6086] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6083] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6080] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6086] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6083] <... futex resumed>) = 1 [pid 6081] <... futex resumed>) = 0 [pid 6080] <... futex resumed>) = 0 [pid 6086] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 6083] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6081] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6080] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6083] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6081] <... futex resumed>) = 0 [pid 6083] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6081] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6092] <... set_robust_list resumed>) = 0 [pid 6083] <... openat resumed>) = 5 [pid 6082] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6083] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6092] chdir("./14" [pid 6087] <... write resumed>) = 524288 [pid 6084] <... futex resumed>) = 0 [pid 6083] <... futex resumed>) = 1 [pid 6082] <... futex resumed>) = 1 [pid 6081] <... futex resumed>) = 0 [pid 6084] fsync(-1 [pid 6083] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6081] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6084] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 6092] <... chdir resumed>) = 0 [pid 6087] munmap(0x7f0d62800000, 138412032 [pid 6084] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6083] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6082] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6081] <... futex resumed>) = 0 [pid 6084] <... futex resumed>) = 0 [pid 6083] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 6081] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6084] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6087] <... munmap resumed>) = 0 [pid 6082] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6087] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6082] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6087] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6084] <... futex resumed>) = 0 [pid 6082] <... futex resumed>) = 1 [pid 6084] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6087] close(5 [pid 6082] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6086] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 6086] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6092] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6087] <... close resumed>) = 0 [pid 6086] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6084] <... openat resumed>) = 5 [pid 6083] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 6080] <... futex resumed>) = 0 [pid 6087] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6083] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6080] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6084] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6092] <... prctl resumed>) = 0 [pid 6087] <... futex resumed>) = 1 [pid 6086] <... futex resumed>) = 0 [pid 6085] <... futex resumed>) = 0 [pid 6084] <... futex resumed>) = 1 [pid 6083] <... futex resumed>) = 1 [pid 6082] <... futex resumed>) = 0 [pid 6081] <... futex resumed>) = 0 [pid 6080] <... futex resumed>) = 1 [pid 6092] setpgid(0, 0) = 0 [pid 6087] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6086] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 6085] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6084] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6083] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6082] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6081] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6080] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6092] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 6087] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6086] <... openat resumed>) = 4 [pid 6085] <... futex resumed>) = 0 [pid 6084] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6083] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6082] <... futex resumed>) = 0 [pid 6081] <... futex resumed>) = 0 [pid 6092] <... symlink resumed>) = 0 [pid 6087] fsync(-1 [pid 6086] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6085] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6084] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 6083] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 6082] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6081] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6092] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 6087] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 6086] <... futex resumed>) = 1 [pid 6083] <... openat resumed>) = 6 [pid 6080] <... futex resumed>) = 0 [pid 6092] <... symlink resumed>) = 0 [pid 6086] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6083] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6080] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6092] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 6086] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6083] <... futex resumed>) = 0 [pid 6080] <... futex resumed>) = 0 [pid 6092] <... symlink resumed>) = 0 [pid 6086] read(-1, [pid 6083] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6080] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6092] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6086] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 6092] <... openat resumed>) = 3 [pid 6086] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6092] write(3, "1000", 4 [pid 6086] <... futex resumed>) = 1 [pid 6080] <... futex resumed>) = 0 [pid 6092] <... write resumed>) = 4 [pid 6086] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6080] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6092] close(3 [pid 6086] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6080] <... futex resumed>) = 0 [pid 6092] <... close resumed>) = 0 [pid 6086] memfd_create("syzkaller", 0 [pid 6080] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6092] symlink("/dev/binderfs", "./binderfs" [pid 6087] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6086] <... memfd_create resumed>) = 5 [pid 6084] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 6081] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6092] <... symlink resumed>) = 0 [pid 6087] <... futex resumed>) = 1 [pid 6086] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6085] <... futex resumed>) = 0 [pid 6084] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [ 108.513271][ T6088] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 108.537059][ T6089] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6081] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000executing program [pid 6092] write(1, "executing program\n", 18 [pid 6087] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6086] <... mmap resumed>) = 0x7f0d62800000 [pid 6085] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6084] <... futex resumed>) = 1 [pid 6083] <... futex resumed>) = 0 [pid 6082] <... futex resumed>) = 0 [pid 6081] <... futex resumed>) = 1 [pid 6087] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6085] <... futex resumed>) = 0 [pid 6084] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6083] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 6082] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6081] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6087] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6085] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6084] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6082] <... futex resumed>) = 0 [pid 6087] <... openat resumed>) = 5 [pid 6084] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 6082] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6087] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6084] <... openat resumed>) = 6 [pid 6087] <... futex resumed>) = 1 [pid 6085] <... futex resumed>) = 0 [pid 6084] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6087] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6085] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6084] <... futex resumed>) = 1 [pid 6087] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6085] <... futex resumed>) = 0 [pid 6084] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6087] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 6085] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6092] <... write resumed>) = 18 [pid 6082] <... futex resumed>) = 0 [pid 6092] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6087] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 6082] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6092] <... futex resumed>) = 0 [pid 6087] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6086] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 6084] <... futex resumed>) = 0 [pid 6082] <... futex resumed>) = 1 [pid 6092] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, [pid 6087] <... futex resumed>) = 1 [pid 6085] <... futex resumed>) = 0 [pid 6084] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 6082] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6092] <... rt_sigaction resumed>NULL, 8) = 0 [pid 6087] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 6086] <... write resumed>) = 524288 [pid 6085] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6092] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 6085] <... futex resumed>) = 0 [pid 6085] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6092] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6092] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6087] <... openat resumed>) = 6 [pid 6086] munmap(0x7f0d62800000, 138412032 [pid 6092] <... mmap resumed>) = 0x7f0d6adff000 [pid 6087] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6092] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE [pid 6087] <... futex resumed>) = 1 [pid 6086] <... munmap resumed>) = 0 [pid 6085] <... futex resumed>) = 0 [pid 6092] <... mprotect resumed>) = 0 [pid 6087] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6086] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 6085] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6092] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6087] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6086] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6092] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6087] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 6092] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0} [pid 6086] close(5 [pid 6085] <... futex resumed>) = 0 [pid 6085] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 6093 attached [pid 6086] <... close resumed>) = 0 [pid 6081] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6092] <... clone3 resumed> => {parent_tid=[35]}, 88) = 35 [pid 6086] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6092] rt_sigprocmask(SIG_SETMASK, [], [pid 6086] <... futex resumed>) = 1 [pid 6080] <... futex resumed>) = 0 [pid 6092] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6086] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6080] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6092] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6086] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6080] <... futex resumed>) = 0 [pid 6092] <... futex resumed>) = 0 [pid 6086] fsync(-1 [pid 6080] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6092] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6086] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 6093] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 6086] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6093] <... rseq resumed>) = 0 [pid 6086] <... futex resumed>) = 1 [pid 6080] <... futex resumed>) = 0 [pid 6093] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 6086] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6080] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6093] <... set_robust_list resumed>) = 0 [pid 6086] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6080] <... futex resumed>) = 0 [pid 6093] rt_sigprocmask(SIG_SETMASK, [], [pid 6086] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6080] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6093] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6093] memfd_create("syzkaller", 0 [pid 6086] <... openat resumed>) = 5 [pid 6093] <... memfd_create resumed>) = 3 [pid 6086] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6093] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6086] <... futex resumed>) = 1 [pid 6080] <... futex resumed>) = 0 [pid 6086] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6080] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6086] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6080] <... futex resumed>) = 0 [pid 6093] <... mmap resumed>) = 0x7f0d62800000 [pid 6086] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [ 108.560349][ T6090] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6080] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6093] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6085] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6082] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6086] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 6080] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6086] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6080] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6086] <... futex resumed>) = 0 [pid 6080] <... futex resumed>) = 0 [pid 6086] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [ 108.619429][ T6091] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6080] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6086] <... openat resumed>) = 6 [pid 6086] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6080] <... futex resumed>) = 0 [pid 6093] <... write resumed>) = 1048576 [pid 6086] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 6080] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6080] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6093] munmap(0x7f0d62800000, 138412032) = 0 [pid 6093] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 6093] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6093] close(3) = 0 [pid 6093] close(4) = 0 [pid 6093] mkdir("./file2", 0777) = 0 [pid 6093] mount("/dev/loop4", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 6080] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [ 108.708062][ T6093] loop4: detected capacity change from 0 to 2048 [ 108.735704][ T6093] NILFS (loop4): broken superblock, retrying with spare superblock (blocksize = 1024) [pid 6093] <... mount resumed>) = 0 [pid 6093] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY) = 3 [pid 6093] chdir("./file2") = 0 [pid 6093] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6093] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6092] <... futex resumed>) = 0 [pid 6093] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6092] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6093] <... futex resumed>) = 0 [pid 6092] <... futex resumed>) = 1 [pid 6092] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6093] ioctl(-1, BTRFS_IOC_RM_DEV, NULL) = -1 EBADF (Bad file descriptor) [pid 6093] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6092] <... futex resumed>) = 0 [pid 6093] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 6092] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6093] <... openat resumed>) = 4 [pid 6092] <... futex resumed>) = 0 [pid 6092] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6093] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6092] <... futex resumed>) = 0 [pid 6093] read(-1, [pid 6092] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6093] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 6092] <... futex resumed>) = 0 [pid 6093] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6092] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 6093] <... futex resumed>) = 0 [pid 6092] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6093] memfd_create("syzkaller", 0 [pid 6092] <... futex resumed>) = 0 [pid 6092] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6093] <... memfd_create resumed>) = 5 [pid 6093] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 [ 108.774281][ T6094] NILFS (loop4): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6093] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 6084] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 6084] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6084] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6093] munmap(0x7f0d62800000, 138412032) = 0 [pid 6082] close(3 [pid 6093] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6093] close(5) = 0 [ 108.838110][ T6089] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 108.870306][ T6088] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6093] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6083] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 6082] <... close resumed>) = 0 [pid 6087] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 6087] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6085] close(3 [pid 6087] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6085] <... close resumed>) = 0 [pid 6085] close(4) = 0 [pid 6085] close(5) = 0 [pid 6085] close(6) = 0 [pid 6085] close(7) = -1 EBADF (Bad file descriptor) [pid 6085] close(8) = -1 EBADF (Bad file descriptor) [pid 6085] close(9) = -1 EBADF (Bad file descriptor) [pid 6085] close(10) = -1 EBADF (Bad file descriptor) [pid 6085] close(11) = -1 EBADF (Bad file descriptor) [pid 6085] close(12) = -1 EBADF (Bad file descriptor) [pid 6085] close(13) = -1 EBADF (Bad file descriptor) [pid 6085] close(14) = -1 EBADF (Bad file descriptor) [pid 6085] close(15) = -1 EBADF (Bad file descriptor) [pid 6085] close(16) = -1 EBADF (Bad file descriptor) [pid 6085] close(17) = -1 EBADF (Bad file descriptor) [pid 6085] close(18) = -1 EBADF (Bad file descriptor) [pid 6085] close(19) = -1 EBADF (Bad file descriptor) [pid 6085] close(20) = -1 EBADF (Bad file descriptor) [pid 6085] close(21) = -1 EBADF (Bad file descriptor) [pid 6085] close(22) = -1 EBADF (Bad file descriptor) [pid 6085] close(23) = -1 EBADF (Bad file descriptor) [pid 6085] close(24) = -1 EBADF (Bad file descriptor) [pid 6085] close(25) = -1 EBADF (Bad file descriptor) [pid 6085] close(26) = -1 EBADF (Bad file descriptor) [pid 6085] close(27) = -1 EBADF (Bad file descriptor) [pid 6085] close(28) = -1 EBADF (Bad file descriptor) [pid 6085] close(29) = -1 EBADF (Bad file descriptor) [pid 6093] <... futex resumed>) = 1 [pid 6092] <... futex resumed>) = 0 [pid 6085] exit_group(0 [pid 6083] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6082] close(4 [pid 6093] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6092] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6087] <... futex resumed>) = ? [pid 6085] <... exit_group resumed>) = ? [pid 6083] <... futex resumed>) = 0 [pid 6082] <... close resumed>) = 0 [pid 6093] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6092] <... futex resumed>) = 0 [pid 6087] +++ exited with 0 +++ [pid 6085] +++ exited with 0 +++ [pid 6083] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6082] close(5 [pid 6081] close(3 [pid 6093] fsync(-1 [pid 6092] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6082] <... close resumed>) = 0 [pid 6081] <... close resumed>) = 0 [pid 5835] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=31, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 6093] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 6082] close(6 [pid 6081] close(4 [pid 5835] restart_syscall(<... resuming interrupted clone ...> [pid 6093] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6082] <... close resumed>) = 0 [pid 6081] <... close resumed>) = 0 [pid 6093] <... futex resumed>) = 1 [pid 6092] <... futex resumed>) = 0 [pid 6082] close(7 [pid 6081] close(5 [pid 6093] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6092] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6082] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6081] <... close resumed>) = 0 [pid 6093] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6092] <... futex resumed>) = 0 [pid 6082] close(8 [pid 6081] close(6 [pid 6093] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6092] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6082] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6081] <... close resumed>) = 0 [pid 6093] <... openat resumed>) = 5 [pid 6082] close(9 [pid 6081] close(7 [pid 5835] <... restart_syscall resumed>) = 0 [pid 6093] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6082] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6081] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6093] <... futex resumed>) = 1 [pid 6092] <... futex resumed>) = 0 [pid 6082] close(10 [pid 6081] close(8 [pid 6093] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6092] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6082] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6081] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6093] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6092] <... futex resumed>) = 0 [pid 6082] close(11 [pid 6081] close(9 [pid 5835] umount2("./13", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6093] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 6092] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6082] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6081] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6082] close(12 [pid 6081] close(10 [pid 6082] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6081] <... close resumed>) = -1 EBADF (Bad file descriptor) [ 108.897570][ T6090] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6082] close(13 [pid 6081] close(11 [pid 6082] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6081] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6082] close(14 [pid 6081] close(12 [pid 6082] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6081] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6082] close(15 [pid 6081] close(13 [pid 6082] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6081] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6082] close(16 [pid 6081] close(14 [pid 6082] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6081] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6082] close(17 [pid 6081] close(15 [pid 6082] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6081] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6082] close(18 [pid 6081] close(16 [pid 6082] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6081] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6082] close(19 [pid 6081] close(17 [pid 6082] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6081] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6082] close(20 [pid 6081] close(18 [pid 6082] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6081] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5835] openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6082] close(21 [pid 6081] close(19 [pid 5835] <... openat resumed>) = 3 [pid 6082] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6081] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6082] close(22 [pid 6081] close(20 [pid 5835] newfstatat(3, "", [pid 6082] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6081] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6082] close(23 [pid 6081] close(21 [pid 6082] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6081] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6082] close(24 [pid 6081] close(22 [pid 6082] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6081] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5835] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 6093] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 6082] close(25 [pid 6093] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5835] getdents64(3, [pid 6093] <... futex resumed>) = 1 [pid 5835] <... getdents64 resumed>0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 6093] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5835] umount2("./13/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5835] newfstatat(AT_FDCWD, "./13/cgroup", [pid 6092] <... futex resumed>) = 0 [pid 6086] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 6082] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6081] close(23 [pid 5835] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6092] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6086] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6082] close(26 [pid 6081] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6080] close(3 [pid 5835] unlink("./13/cgroup" [pid 6092] <... futex resumed>) = 1 [pid 6086] <... futex resumed>) = 0 [pid 6082] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6081] close(24 [pid 6080] <... close resumed>) = 0 [pid 6093] <... futex resumed>) = 0 [pid 5835] <... unlink resumed>) = 0 [pid 6093] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 6092] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6086] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6082] close(27 [pid 6081] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6080] close(4 [pid 6082] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6081] close(25 [pid 6080] <... close resumed>) = 0 [pid 5835] umount2("./13/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6082] close(28 [pid 6081] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6080] close(5 [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6082] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6081] close(26 [pid 6080] <... close resumed>) = 0 [pid 5835] newfstatat(AT_FDCWD, "./13/cgroup.cpu", [pid 6082] close(29 [pid 6081] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6080] close(6 [pid 6082] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6081] close(27 [pid 5835] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6082] exit_group(0 [pid 6081] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6080] <... close resumed>) = 0 [pid 5835] unlink("./13/cgroup.cpu" [pid 6084] <... futex resumed>) = ? [pid 6082] <... exit_group resumed>) = ? [pid 6081] close(28 [pid 6080] close(7 [pid 5835] <... unlink resumed>) = 0 [pid 6093] <... openat resumed>) = 6 [pid 6084] +++ exited with 0 +++ [pid 6081] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6080] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6093] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6082] +++ exited with 0 +++ [pid 6081] close(29 [pid 5835] umount2("./13/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6093] <... futex resumed>) = 1 [pid 6092] <... futex resumed>) = 0 [pid 6081] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6080] close(8 [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6093] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6092] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6081] exit_group(0 [pid 5835] newfstatat(AT_FDCWD, "./13/cgroup.net", [pid 5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=38, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 6093] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6092] <... futex resumed>) = 0 [pid 6083] <... futex resumed>) = ? [pid 6081] <... exit_group resumed>) = ? [pid 6080] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5835] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] restart_syscall(<... resuming interrupted clone ...> [pid 6093] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 6092] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6083] +++ exited with 0 +++ [pid 6080] close(9 [pid 5835] unlink("./13/cgroup.net" [pid 5833] <... restart_syscall resumed>) = 0 [pid 6081] +++ exited with 0 +++ [pid 6080] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5835] <... unlink resumed>) = 0 [pid 5834] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=37, si_uid=0, si_status=0, si_utime=0, si_stime=21 /* 0.21 s */} --- [pid 6080] close(10) = -1 EBADF (Bad file descriptor) [pid 6080] close(11) = -1 EBADF (Bad file descriptor) [pid 5835] umount2("./13/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5833] umount2("./14", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6080] close(12 [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5834] umount2("./14", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5835] newfstatat(AT_FDCWD, "./13/binderfs", [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5835] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6080] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5834] openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5833] openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [ 108.950168][ T6094] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 108.970403][ T6091] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6080] close(13 [pid 5835] unlink("./13/binderfs" [pid 6080] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5834] <... openat resumed>) = 3 [pid 5833] <... openat resumed>) = 3 [pid 6080] close(14 [pid 5835] <... unlink resumed>) = 0 [pid 5834] newfstatat(3, "", [pid 6080] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5833] newfstatat(3, "", [pid 6080] close(15 [pid 5835] umount2("./13/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6080] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5834] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 5833] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 5834] getdents64(3, [pid 5833] getdents64(3, [pid 5834] <... getdents64 resumed>0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 5833] <... getdents64 resumed>0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 5834] umount2("./14/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5833] umount2("./14/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5834] newfstatat(AT_FDCWD, "./14/cgroup", [pid 6080] close(16 [pid 5834] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] newfstatat(AT_FDCWD, "./14/cgroup", [pid 5834] unlink("./14/cgroup" [pid 6080] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6080] close(17 [pid 5834] <... unlink resumed>) = 0 [pid 5834] umount2("./14/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5833] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6080] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5833] unlink("./14/cgroup" [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6080] close(18) = -1 EBADF (Bad file descriptor) [pid 5833] <... unlink resumed>) = 0 [pid 6080] close(19 [pid 5834] newfstatat(AT_FDCWD, "./14/cgroup.cpu", [pid 6080] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6080] close(20) = -1 EBADF (Bad file descriptor) [pid 6080] close(21) = -1 EBADF (Bad file descriptor) [pid 6080] close(22) = -1 EBADF (Bad file descriptor) [pid 6080] close(23) = -1 EBADF (Bad file descriptor) [pid 6080] close(24) = -1 EBADF (Bad file descriptor) [pid 6080] close(25) = -1 EBADF (Bad file descriptor) [pid 6080] close(26) = -1 EBADF (Bad file descriptor) [pid 6080] close(27) = -1 EBADF (Bad file descriptor) [pid 6080] close(28) = -1 EBADF (Bad file descriptor) [pid 6080] close(29) = -1 EBADF (Bad file descriptor) [pid 6080] exit_group(0) = ? [pid 5833] umount2("./14/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6086] <... futex resumed>) = ? [pid 5834] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6092] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6086] +++ exited with 0 +++ [pid 6080] +++ exited with 0 +++ [pid 5834] unlink("./14/cgroup.cpu" [pid 5833] newfstatat(AT_FDCWD, "./14/cgroup.cpu", [pid 5836] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=34, si_uid=0, si_status=0, si_utime=0, si_stime=25 /* 0.25 s */} --- [pid 5834] <... unlink resumed>) = 0 [pid 5833] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./14/cgroup.cpu") = 0 [pid 5834] umount2("./14/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5836] umount2("./13", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5833] umount2("./14/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5836] openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5834] newfstatat(AT_FDCWD, "./14/cgroup.net", [pid 5836] <... openat resumed>) = 3 [pid 5833] newfstatat(AT_FDCWD, "./14/cgroup.net", [pid 5834] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5836] newfstatat(3, "", [pid 5833] unlink("./14/cgroup.net" [pid 5836] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 5834] unlink("./14/cgroup.net" [pid 5833] <... unlink resumed>) = 0 [pid 5836] getdents64(3, [pid 5834] <... unlink resumed>) = 0 [pid 5833] umount2("./14/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5836] <... getdents64 resumed>0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 5834] umount2("./14/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5836] umount2("./13/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./14/binderfs", [pid 5836] newfstatat(AT_FDCWD, "./13/cgroup", [pid 5833] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5836] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5834] newfstatat(AT_FDCWD, "./14/binderfs", [pid 5833] unlink("./14/binderfs" [pid 5836] unlink("./13/cgroup" [pid 5833] <... unlink resumed>) = 0 [pid 5836] <... unlink resumed>) = 0 [pid 5833] umount2("./14/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5836] umount2("./13/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5834] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 109.038149][ T6090] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 109.057486][ T6090] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 109.075228][ T6090] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5836] newfstatat(AT_FDCWD, "./13/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5834] unlink("./14/binderfs" [pid 5836] unlink("./13/cgroup.cpu" [pid 5834] <... unlink resumed>) = 0 [pid 5836] <... unlink resumed>) = 0 [pid 5834] umount2("./14/file2", MNT_FORCE|UMOUNT_NOFOLLOW [ 109.093008][ T6089] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 109.093279][ T6090] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 109.109908][ T6089] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 109.127437][ T6090] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5836] umount2("./13/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5836] newfstatat(AT_FDCWD, "./13/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5836] unlink("./13/cgroup.net") = 0 [pid 5836] umount2("./13/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5836] newfstatat(AT_FDCWD, "./13/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [ 109.130304][ T6088] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 109.140428][ T6090] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 109.163403][ T6089] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 109.164836][ T6090] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5836] unlink("./13/binderfs") = 0 [ 109.179892][ T6088] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 109.187432][ T6090] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 109.205121][ T6089] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 109.208607][ T6090] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 109.219071][ T6088] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5836] umount2("./13/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6093] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 6093] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6092] close(3) = 0 [pid 6092] close(4) = 0 [pid 6092] close(5) = 0 [pid 6092] close(6) = 0 [pid 6092] close(7) = -1 EBADF (Bad file descriptor) [pid 6092] close(8) = -1 EBADF (Bad file descriptor) [pid 6092] close(9) = -1 EBADF (Bad file descriptor) [pid 6092] close(10) = -1 EBADF (Bad file descriptor) [pid 6092] close(11) = -1 EBADF (Bad file descriptor) [pid 6092] close(12) = -1 EBADF (Bad file descriptor) [pid 6092] close(13) = -1 EBADF (Bad file descriptor) [pid 6092] close(14) = -1 EBADF (Bad file descriptor) [pid 6092] close(15) = -1 EBADF (Bad file descriptor) [pid 6092] close(16) = -1 EBADF (Bad file descriptor) [pid 6092] close(17) = -1 EBADF (Bad file descriptor) [pid 6092] close(18) = -1 EBADF (Bad file descriptor) [pid 6092] close(19) = -1 EBADF (Bad file descriptor) [pid 6092] close(20) = -1 EBADF (Bad file descriptor) [pid 6092] close(21) = -1 EBADF (Bad file descriptor) [pid 6092] close(22) = -1 EBADF (Bad file descriptor) [ 109.232155][ T6094] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 109.253348][ T6089] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 109.255236][ T6090] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 109.276275][ T6089] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6092] close(23) = -1 EBADF (Bad file descriptor) [pid 6093] <... futex resumed>) = 0 [pid 6092] close(24) = -1 EBADF (Bad file descriptor) [pid 6092] close(25) = -1 EBADF (Bad file descriptor) [pid 6092] close(26) = -1 EBADF (Bad file descriptor) [pid 6092] close(27) = -1 EBADF (Bad file descriptor) [pid 6092] close(28) = -1 EBADF (Bad file descriptor) [pid 6092] close(29) = -1 EBADF (Bad file descriptor) [pid 6092] exit_group(0) = ? [ 109.288021][ T6091] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 109.288211][ T6088] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 109.305233][ T6091] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 109.310764][ T6089] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 109.324275][ T6090] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6093] +++ exited with 0 +++ [pid 6092] +++ exited with 0 +++ [pid 5837] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=34, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 5837] umount2("./14", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5837] openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5837] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 5837] getdents64(3, 0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 5837] umount2("./14/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5837] newfstatat(AT_FDCWD, "./14/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5837] unlink("./14/cgroup") = 0 [pid 5837] umount2("./14/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5837] newfstatat(AT_FDCWD, "./14/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5837] unlink("./14/cgroup.cpu") = 0 [pid 5837] umount2("./14/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5837] newfstatat(AT_FDCWD, "./14/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5837] unlink("./14/cgroup.net") = 0 [pid 5837] umount2("./14/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5837] newfstatat(AT_FDCWD, "./14/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5837] unlink("./14/binderfs") = 0 [ 109.335866][ T6088] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 109.354582][ T6089] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 109.359378][ T6091] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 109.365559][ T6089] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 109.376490][ T6091] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 109.388318][ T6088] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 109.398350][ T6090] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 109.409269][ T6094] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 109.420555][ T6091] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 109.430607][ T6089] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 109.451998][ T6088] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 109.462750][ T6090] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 109.462881][ T6094] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 109.484531][ T6091] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 109.484568][ T6088] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 109.495907][ T6091] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 109.506037][ T6089] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 109.516270][ T6090] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 109.527848][ T6088] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 109.538520][ T6091] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 109.548071][ T6094] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 109.559637][ T6091] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 109.570023][ T6089] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 109.580847][ T6090] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 109.591251][ T6088] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 109.602589][ T5835] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 109.623868][ T6089] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 109.635599][ T6094] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 109.636201][ T6091] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 109.647570][ T6089] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 109.670140][ T6088] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 109.682085][ T6094] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 109.682242][ T6091] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 109.693200][ T5835] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 109.704888][ T6091] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 109.714865][ T6088] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 109.725949][ T6091] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 109.736079][ T6094] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 109.748041][ T6091] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 109.758252][ T5835] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 109.769257][ T6089] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 109.781158][ T6088] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 109.803412][ T5833] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 109.803540][ T6091] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 109.814153][ T5833] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 109.825202][ T6094] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 109.835174][ T5835] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 109.846341][ T6094] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 109.856854][ T6088] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 109.868126][ T6094] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 109.878006][ T5833] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 109.890780][ T5836] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 109.899978][ T5835] NILFS (loop3): disposed unprocessed dirty file(s) when stopping log writer [ 109.920007][ T6088] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 109.920037][ T5836] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 109.931616][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 109.941825][ T6094] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 109.951807][ T5833] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 109.951872][ T5833] NILFS (loop0): disposed unprocessed dirty file(s) when stopping log writer [ 109.963210][ T5836] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 109.989701][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 109.993252][ T6094] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 110.014755][ T6094] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 110.025554][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 110.026131][ T5836] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5837] umount2("./14/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5835] <... umount2 resumed>) = 0 [ 110.046974][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 110.059827][ T6094] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 110.070908][ T6094] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 110.085101][ T5834] NILFS (loop1): disposed unprocessed dirty file(s) when stopping log writer [pid 5835] umount2("./13/file2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] <... umount2 resumed>) = 0 [pid 5835] newfstatat(AT_FDCWD, "./13/file2", [pid 5833] umount2("./14/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5835] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5835] umount2("./13/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5833] newfstatat(AT_FDCWD, "./14/file2", [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5833] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5835] openat(AT_FDCWD, "./13/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [ 110.085770][ T5836] NILFS (loop2): disposed unprocessed dirty file(s) when stopping log writer [ 110.116415][ T6094] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 110.128075][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5833] umount2("./14/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5836] <... umount2 resumed>) = 0 [pid 5836] umount2("./13/file2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5836] newfstatat(AT_FDCWD, "./13/file2", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5836] umount2("./13/file2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5836] openat(AT_FDCWD, "./13/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5836] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 5836] getdents64(4, 0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 5836] getdents64(4, 0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 5836] close(4) = 0 [pid 5836] rmdir("./13/file2") = 0 [pid 5834] <... umount2 resumed>) = 0 [pid 5836] getdents64(3, 0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 5834] umount2("./14/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5836] close(3 [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5836] <... close resumed>) = 0 [pid 5834] newfstatat(AT_FDCWD, "./14/file2", [pid 5836] rmdir("./13" [pid 5834] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5836] <... rmdir resumed>) = 0 [pid 5834] umount2("./14/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5836] mkdir("./14", 0777 [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5836] <... mkdir resumed>) = 0 [pid 5836] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5834] openat(AT_FDCWD, "./14/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5836] <... openat resumed>) = 3 [pid 5836] ioctl(3, LOOP_CLR_FD [pid 5834] <... openat resumed>) = 4 [pid 5836] <... ioctl resumed>) = 0 [pid 5836] close(3 [pid 5834] newfstatat(4, "", [pid 5836] <... close resumed>) = 0 [pid 5834] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 5836] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5834] getdents64(4, ./strace-static-x86_64: Process 6095 attached 0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 6095] set_robust_list(0x55555fa3c6a0, 24 [pid 5836] <... clone resumed>, child_tidptr=0x55555fa3c690) = 36 [pid 5834] getdents64(4, [pid 6095] <... set_robust_list resumed>) = 0 [pid 5834] <... getdents64 resumed>0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 6095] chdir("./14" [pid 5834] close(4 [pid 6095] <... chdir resumed>) = 0 [pid 5834] <... close resumed>) = 0 [pid 6095] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5834] rmdir("./14/file2" [pid 6095] <... prctl resumed>) = 0 [pid 5834] <... rmdir resumed>) = 0 [pid 6095] setpgid(0, 0 [pid 5834] getdents64(3, [pid 6095] <... setpgid resumed>) = 0 [pid 5834] <... getdents64 resumed>0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 6095] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5834] close(3 [pid 6095] <... symlink resumed>) = 0 [pid 5834] <... close resumed>) = 0 [pid 6095] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 5834] rmdir("./14" [pid 6095] <... symlink resumed>) = 0 [pid 5834] <... rmdir resumed>) = 0 [pid 6095] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5834] mkdir("./15", 0777 [pid 6095] <... symlink resumed>) = 0 [pid 5835] newfstatat(4, "", [pid 5834] <... mkdir resumed>) = 0 [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6095] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5835] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 5833] openat(AT_FDCWD, "./14/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5834] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5834] ioctl(3, LOOP_CLR_FD) = 0 [pid 5834] close(3 [pid 5837] <... umount2 resumed>) = 0 [pid 5835] getdents64(4, [pid 5834] <... close resumed>) = 0 [pid 5833] <... openat resumed>) = 4 [pid 5837] umount2("./14/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5835] <... getdents64 resumed>0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 5833] newfstatat(4, "", [pid 5835] getdents64(4, [pid 6095] <... openat resumed>) = 3 [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5835] <... getdents64 resumed>0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 5833] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 5837] newfstatat(AT_FDCWD, "./14/file2", [pid 5835] close(4 [pid 5833] getdents64(4, [pid 5835] <... close resumed>) = 0 [pid 5833] <... getdents64 resumed>0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 5837] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5835] rmdir("./13/file2" [pid 5833] getdents64(4, [pid 6095] write(3, "1000", 4 [pid 5835] <... rmdir resumed>) = 0 [pid 5837] umount2("./14/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5833] <... getdents64 resumed>0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 5835] getdents64(3, [pid 5833] close(4 [pid 5835] <... getdents64 resumed>0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 5833] <... close resumed>) = 0 [pid 5835] close(3 [pid 5833] rmdir("./14/file2" [pid 5835] <... close resumed>) = 0 [pid 6095] <... write resumed>) = 4 [pid 6095] close(3 [pid 5835] rmdir("./13" [pid 5833] <... rmdir resumed>) = 0 [pid 6095] <... close resumed>) = 0 [pid 5835] <... rmdir resumed>) = 0 [pid 5833] getdents64(3, [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5835] mkdir("./14", 0777 [pid 5833] <... getdents64 resumed>0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 6095] symlink("/dev/binderfs", "./binderfs" [pid 5834] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5833] close(3executing program [pid 6095] <... symlink resumed>) = 0 [pid 5837] openat(AT_FDCWD, "./14/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5835] <... mkdir resumed>) = 0 [pid 5833] <... close resumed>) = 0 [pid 5835] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5833] rmdir("./14" [pid 6095] write(1, "executing program\n", 18 [pid 5835] <... openat resumed>) = 3 [pid 6095] <... write resumed>) = 18 [pid 5835] ioctl(3, LOOP_CLR_FD [pid 5833] <... rmdir resumed>) = 0 [pid 5837] <... openat resumed>) = 4 [ 110.140340][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 110.152098][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 110.163154][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 110.174123][ T5837] NILFS (loop4): disposed unprocessed dirty file(s) when stopping log writer [pid 5833] mkdir("./15", 0777 [pid 5837] newfstatat(4, "", [pid 5835] <... ioctl resumed>) = 0 ./strace-static-x86_64: Process 6096 attached [pid 6095] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5835] close(3 [pid 5837] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 5833] <... mkdir resumed>) = 0 [pid 6096] set_robust_list(0x55555fa3c6a0, 24 [pid 5834] <... clone resumed>, child_tidptr=0x55555fa3c690) = 39 [pid 5833] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6095] <... futex resumed>) = 0 [pid 6096] <... set_robust_list resumed>) = 0 [pid 6095] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, [pid 5833] <... openat resumed>) = 3 [pid 6095] <... rt_sigaction resumed>NULL, 8) = 0 [pid 6096] chdir("./15" [pid 6095] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5837] getdents64(4, [pid 5833] ioctl(3, LOOP_CLR_FD [pid 6096] <... chdir resumed>) = 0 [pid 6095] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5837] <... getdents64 resumed>0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 6096] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6095] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5837] getdents64(4, [pid 5835] <... close resumed>) = 0 [pid 5833] <... ioctl resumed>) = 0 [pid 5837] <... getdents64 resumed>0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 5833] close(3 [pid 5837] close(4 [pid 5835] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6096] <... prctl resumed>) = 0 [pid 6095] <... mmap resumed>) = 0x7f0d6adff000 [pid 5837] <... close resumed>) = 0 [pid 5833] <... close resumed>) = 0 ./strace-static-x86_64: Process 6097 attached [pid 6096] setpgid(0, 0 [pid 6095] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE [pid 5837] rmdir("./14/file2" [pid 5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6098 attached [pid 6097] set_robust_list(0x55555fa3c6a0, 24 [pid 6096] <... setpgid resumed>) = 0 [pid 6095] <... mprotect resumed>) = 0 [pid 5837] <... rmdir resumed>) = 0 [pid 6098] set_robust_list(0x55555fa3c6a0, 24 [pid 5837] getdents64(3, [pid 6098] <... set_robust_list resumed>) = 0 [pid 6097] <... set_robust_list resumed>) = 0 [pid 6096] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 5837] <... getdents64 resumed>0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 5833] <... clone resumed>, child_tidptr=0x55555fa3c690) = 40 [pid 6098] chdir("./15" [pid 6097] chdir("./14" [pid 5837] close(3 [pid 6098] <... chdir resumed>) = 0 [pid 6097] <... chdir resumed>) = 0 [pid 6096] <... symlink resumed>) = 0 [pid 5837] <... close resumed>) = 0 [pid 6098] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6097] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6096] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 6095] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5837] rmdir("./14" [pid 6098] <... prctl resumed>) = 0 [pid 6097] <... prctl resumed>) = 0 [pid 6096] <... symlink resumed>) = 0 [pid 6095] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5837] <... rmdir resumed>) = 0 [pid 5835] <... clone resumed>, child_tidptr=0x55555fa3c690) = 33 [pid 6098] setpgid(0, 0 [pid 6097] setpgid(0, 0 [pid 6095] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0} [pid 6098] <... setpgid resumed>) = 0 [pid 6097] <... setpgid resumed>) = 0 [pid 6096] symlink("/syzcgroup/net/syz1", "./cgroup.net"./strace-static-x86_64: Process 6099 attached [pid 5837] mkdir("./15", 0777 [pid 6099] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 6097] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 6096] <... symlink resumed>) = 0 [pid 5837] <... mkdir resumed>) = 0 [pid 6099] <... rseq resumed>) = 0 [pid 6098] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 6097] <... symlink resumed>) = 0 [pid 6096] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6095] <... clone3 resumed> => {parent_tid=[37]}, 88) = 37 [pid 6099] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 6098] <... symlink resumed>) = 0 [pid 5837] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6099] <... set_robust_list resumed>) = 0 [pid 6098] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 6097] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 6096] <... openat resumed>) = 3 [pid 6095] rt_sigprocmask(SIG_SETMASK, [], [pid 5837] <... openat resumed>) = 3 [pid 6099] rt_sigprocmask(SIG_SETMASK, [], [pid 6097] <... symlink resumed>) = 0 [pid 6096] write(3, "1000", 4 [pid 6097] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 6095] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6096] <... write resumed>) = 4 [pid 6095] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6096] close(3 [pid 6095] <... futex resumed>) = 0 [pid 6096] <... close resumed>) = 0 [pid 6095] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6096] symlink("/dev/binderfs", "./binderfs" [pid 6099] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6096] <... symlink resumed>) = 0 [pid 5837] ioctl(3, LOOP_CLR_FD [pid 6097] <... symlink resumed>) = 0 executing program [pid 6099] memfd_create("syzkaller", 0 [pid 6098] <... symlink resumed>) = 0 [pid 6097] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6096] write(1, "executing program\n", 18 [pid 5837] <... ioctl resumed>) = 0 [pid 6099] <... memfd_create resumed>) = 3 [pid 6098] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 6097] <... openat resumed>) = 3 [pid 6096] <... write resumed>) = 18 [pid 5837] close(3 [pid 6099] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6096] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6099] <... mmap resumed>) = 0x7f0d62800000 [pid 5837] <... close resumed>) = 0 [pid 6096] <... futex resumed>) = 0 [pid 6096] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, [pid 6099] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6098] <... symlink resumed>) = 0 [pid 6097] write(3, "1000", 4 [pid 6096] <... rt_sigaction resumed>NULL, 8) = 0 [pid 6098] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6097] <... write resumed>) = 4 [pid 6096] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 6098] <... openat resumed>) = 3 [pid 6097] close(3 [pid 6096] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6098] write(3, "1000", 4 [pid 6097] <... close resumed>) = 0 [pid 6098] <... write resumed>) = 4 [pid 6097] symlink("/dev/binderfs", "./binderfs" [pid 6096] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6098] close(3executing program [pid 6097] <... symlink resumed>) = 0 [pid 6096] <... mmap resumed>) = 0x7f0d6adff000 [pid 6098] <... close resumed>) = 0 [pid 6097] write(1, "executing program\n", 18 [pid 6096] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE [pid 6097] <... write resumed>) = 18 [pid 6096] <... mprotect resumed>) = 0 [pid 6097] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6096] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6098] symlink("/dev/binderfs", "./binderfs" [pid 6097] <... futex resumed>) = 0 [pid 6096] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0}executing program [pid 5837] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6100 attached ./strace-static-x86_64: Process 6101 attached [pid 6098] <... symlink resumed>) = 0 [pid 6097] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, [pid 6100] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 6098] write(1, "executing program\n", 18 [pid 6097] <... rt_sigaction resumed>NULL, 8) = 0 [pid 6101] set_robust_list(0x55555fa3c6a0, 24 [pid 6100] <... rseq resumed>) = 0 [pid 6098] <... write resumed>) = 18 [pid 6097] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 6096] <... clone3 resumed> => {parent_tid=[40]}, 88) = 40 [pid 6101] <... set_robust_list resumed>) = 0 [pid 6100] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 6098] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6097] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6096] rt_sigprocmask(SIG_SETMASK, [], [pid 6101] chdir("./15" [pid 6100] <... set_robust_list resumed>) = 0 [pid 6098] <... futex resumed>) = 0 [pid 6097] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6096] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5837] <... clone resumed>, child_tidptr=0x55555fa3c690) = 36 [pid 6100] rt_sigprocmask(SIG_SETMASK, [], [pid 6098] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, [pid 6101] <... chdir resumed>) = 0 [pid 6100] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6098] <... rt_sigaction resumed>NULL, 8) = 0 [pid 6097] <... mmap resumed>) = 0x7f0d6adff000 [pid 6096] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6101] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6100] memfd_create("syzkaller", 0 [pid 6098] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 6097] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE [pid 6096] <... futex resumed>) = 0 [pid 6101] setpgid(0, 0 [pid 6100] <... memfd_create resumed>) = 3 [pid 6098] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6097] <... mprotect resumed>) = 0 [pid 6096] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6101] <... setpgid resumed>) = 0 [pid 6100] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6098] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6101] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 6100] <... mmap resumed>) = 0x7f0d62800000 [pid 6098] <... mmap resumed>) = 0x7f0d6adff000 [pid 6097] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6101] <... symlink resumed>) = 0 [pid 6098] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE [pid 6097] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6101] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 6098] <... mprotect resumed>) = 0 [pid 6097] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0}./strace-static-x86_64: Process 6102 attached [pid 6098] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6097] <... clone3 resumed> => {parent_tid=[34]}, 88) = 34 [pid 6102] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 6098] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6097] rt_sigprocmask(SIG_SETMASK, [], [pid 6102] <... rseq resumed>) = 0 [pid 6101] <... symlink resumed>) = 0 [pid 6098] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0} [pid 6102] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 6097] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6102] <... set_robust_list resumed>) = 0 [pid 6101] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 6097] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6102] rt_sigprocmask(SIG_SETMASK, [], [pid 6097] <... futex resumed>) = 0 [pid 6102] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6097] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 6103 attached [pid 6102] memfd_create("syzkaller", 0 [pid 6103] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 6102] <... memfd_create resumed>) = 3 [pid 6098] <... clone3 resumed> => {parent_tid=[41]}, 88) = 41 [pid 6102] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6101] <... symlink resumed>) = 0 [pid 6098] rt_sigprocmask(SIG_SETMASK, [], [pid 6103] <... rseq resumed>) = 0 [pid 6102] <... mmap resumed>) = 0x7f0d62800000 [pid 6098] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6103] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 6101] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6103] <... set_robust_list resumed>) = 0 [pid 6103] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6103] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6101] <... openat resumed>) = 3 [pid 6098] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6101] write(3, "1000", 4 [pid 6103] <... futex resumed>) = 0 [pid 6102] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6101] <... write resumed>) = 4 [pid 6100] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6098] <... futex resumed>) = 1 [pid 6103] memfd_create("syzkaller", 0) = 3 [pid 6103] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 [pid 6103] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6101] close(3 [pid 6098] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6101] <... close resumed>) = 0 [pid 6101] symlink("/dev/binderfs", "./binderfs" [pid 6099] <... write resumed>) = 1048576 [pid 6101] <... symlink resumed>) = 0 [pid 6099] munmap(0x7f0d62800000, 138412032) = 0 [pid 6099] openat(AT_FDCWD, "/dev/loop2", O_RDWRexecuting program ) = 4 [pid 6101] write(1, "executing program\n", 18 [pid 6099] ioctl(4, LOOP_SET_FD, 3 [pid 6101] <... write resumed>) = 18 [pid 6101] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6101] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, NULL, 8) = 0 [pid 6101] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6101] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6099] <... ioctl resumed>) = 0 [pid 6101] <... mmap resumed>) = 0x7f0d6adff000 [pid 6099] close(3) = 0 [pid 6099] close(4) = 0 [pid 6099] mkdir("./file2", 0777) = 0 [pid 6099] mount("/dev/loop2", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 6101] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE [pid 6102] <... write resumed>) = 1048576 [pid 6101] <... mprotect resumed>) = 0 [pid 6100] <... write resumed>) = 1048576 [pid 6103] <... write resumed>) = 1048576 [pid 6102] munmap(0x7f0d62800000, 138412032 [pid 6101] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6102] <... munmap resumed>) = 0 [ 110.361053][ T6099] loop2: detected capacity change from 0 to 2048 [ 110.398327][ T6099] NILFS (loop2): broken superblock, retrying with spare superblock (blocksize = 1024) [pid 6101] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0}./strace-static-x86_64: Process 6104 attached [pid 6103] munmap(0x7f0d62800000, 138412032 [pid 6102] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6101] <... clone3 resumed> => {parent_tid=[37]}, 88) = 37 [pid 6100] munmap(0x7f0d62800000, 138412032 [pid 6104] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 6102] <... openat resumed>) = 4 [pid 6101] rt_sigprocmask(SIG_SETMASK, [], [pid 6104] <... rseq resumed>) = 0 [pid 6102] ioctl(4, LOOP_SET_FD, 3 [pid 6101] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6104] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 6103] <... munmap resumed>) = 0 [pid 6101] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6100] <... munmap resumed>) = 0 [pid 6104] <... set_robust_list resumed>) = 0 [pid 6103] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6101] <... futex resumed>) = 0 [pid 6100] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6104] rt_sigprocmask(SIG_SETMASK, [], [pid 6103] <... openat resumed>) = 4 [pid 6101] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6104] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6104] memfd_create("syzkaller", 0 [pid 6103] ioctl(4, LOOP_SET_FD, 3 [pid 6100] <... openat resumed>) = 4 [pid 6104] <... memfd_create resumed>) = 3 [pid 6104] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 [pid 6100] ioctl(4, LOOP_SET_FD, 3 [pid 6103] <... ioctl resumed>) = 0 [pid 6104] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6102] <... ioctl resumed>) = 0 [pid 6100] <... ioctl resumed>) = 0 [pid 6099] <... mount resumed>) = 0 [pid 6103] close(3 [pid 6100] close(3 [pid 6099] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 6100] <... close resumed>) = 0 [pid 6099] <... openat resumed>) = 3 [pid 6100] close(4 [pid 6099] chdir("./file2" [pid 6104] <... write resumed>) = 1048576 [pid 6103] <... close resumed>) = 0 [pid 6102] close(3 [pid 6100] <... close resumed>) = 0 [pid 6099] <... chdir resumed>) = 0 [pid 6104] munmap(0x7f0d62800000, 138412032 [pid 6103] close(4 [pid 6102] <... close resumed>) = 0 [pid 6100] mkdir("./file2", 0777 [pid 6099] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 6104] <... munmap resumed>) = 0 [pid 6103] <... close resumed>) = 0 [pid 6102] close(4 [pid 6100] <... mkdir resumed>) = 0 [pid 6099] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6103] mkdir("./file2", 0777 [pid 6102] <... close resumed>) = 0 [pid 6100] mount("/dev/loop1", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 6104] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6103] <... mkdir resumed>) = 0 [pid 6102] mkdir("./file2", 0777 [pid 6099] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6104] <... openat resumed>) = 4 [ 110.430553][ T5855] udevd[5855]: incorrect nilfs2 checksum on /dev/loop2 [ 110.441686][ T6102] loop3: detected capacity change from 0 to 2048 [ 110.452528][ T6103] loop0: detected capacity change from 0 to 2048 [ 110.459396][ T6100] loop1: detected capacity change from 0 to 2048 [ 110.461986][ T6105] NILFS (loop2): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6103] mount("/dev/loop0", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 6102] <... mkdir resumed>) = 0 [pid 6104] ioctl(4, LOOP_SET_FD, 3 [pid 6102] mount("/dev/loop3", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 6099] <... futex resumed>) = 1 [pid 6095] <... futex resumed>) = 0 [pid 6099] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6095] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6099] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6095] <... futex resumed>) = 0 [pid 6099] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 6095] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6099] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 6104] <... ioctl resumed>) = 0 [pid 6099] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6095] <... futex resumed>) = 0 [pid 6104] close(3) = 0 [pid 6104] close(4) = 0 [pid 6104] mkdir("./file2", 0777) = 0 [ 110.502750][ T6100] NILFS (loop1): broken superblock, retrying with spare superblock (blocksize = 1024) [ 110.505646][ T6104] loop4: detected capacity change from 0 to 2048 [ 110.520847][ T6106] NILFS (loop1): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 110.534495][ T6102] NILFS (loop3): broken superblock, retrying with spare superblock (blocksize = 1024) [pid 6104] mount("/dev/loop4", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 6102] <... mount resumed>) = 0 [pid 6099] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6095] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6102] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 6099] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6095] <... futex resumed>) = 0 [pid 6102] <... openat resumed>) = 3 [pid 6100] <... mount resumed>) = 0 [pid 6099] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 6095] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6102] chdir("./file2" [pid 6100] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 6099] <... openat resumed>) = 4 [pid 6102] <... chdir resumed>) = 0 [pid 6100] <... openat resumed>) = 3 [pid 6099] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6102] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6100] chdir("./file2" [pid 6099] <... futex resumed>) = 0 [pid 6102] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6100] <... chdir resumed>) = 0 [pid 6099] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6102] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6100] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6102] <... futex resumed>) = 1 [pid 6100] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6102] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6100] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6100] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6095] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6097] <... futex resumed>) = 0 [pid 6095] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6099] <... futex resumed>) = 0 [pid 6099] read(-1, [pid 6097] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6096] <... futex resumed>) = 0 [ 110.539966][ T6103] NILFS (loop0): broken superblock, retrying with spare superblock (blocksize = 1024) [ 110.553762][ T6107] NILFS (loop3): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 110.560169][ T5838] udevd[5838]: incorrect nilfs2 checksum on /dev/loop1 [ 110.576966][ T5855] udevd[5855]: incorrect nilfs2 checksum on /dev/loop0 [ 110.584866][ T6104] NILFS (loop4): broken superblock, retrying with spare superblock (blocksize = 1024) [pid 6095] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6102] <... futex resumed>) = 0 [pid 6097] <... futex resumed>) = 1 [pid 6096] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6102] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 6100] <... futex resumed>) = 0 [pid 6097] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6096] <... futex resumed>) = 1 [pid 6099] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 6102] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 6100] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 6099] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6096] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6095] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6102] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6100] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 6099] <... futex resumed>) = 0 [pid 6095] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6102] <... futex resumed>) = 1 [pid 6100] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6097] <... futex resumed>) = 0 [pid 6102] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6100] <... futex resumed>) = 1 [pid 6097] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6096] <... futex resumed>) = 0 [pid 6102] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6100] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6099] memfd_create("syzkaller", 0 [pid 6097] <... futex resumed>) = 0 [pid 6096] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6095] <... futex resumed>) = 0 [pid 6102] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 6100] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6097] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6096] <... futex resumed>) = 0 [pid 6099] <... memfd_create resumed>) = 5 [pid 6095] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6099] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6102] <... openat resumed>) = 4 [pid 6100] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 6099] <... mmap resumed>) = 0x7f0d62800000 [pid 6096] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6102] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6100] <... openat resumed>) = 4 [pid 6102] <... futex resumed>) = 1 [pid 6097] <... futex resumed>) = 0 [pid 6102] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6100] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6102] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6100] <... futex resumed>) = 1 [pid 6097] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6096] <... futex resumed>) = 0 [pid 6102] read(-1, [pid 6100] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6097] <... futex resumed>) = 0 [pid 6102] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 6100] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6097] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6096] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6102] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6100] read(-1, [pid 6097] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6096] <... futex resumed>) = 0 [pid 6102] <... futex resumed>) = 0 [pid 6100] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 6097] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6096] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6102] memfd_create("syzkaller", 0 [pid 6100] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6097] <... futex resumed>) = 0 [pid 6096] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6102] <... memfd_create resumed>) = 5 [pid 6100] <... futex resumed>) = 0 [pid 6099] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 6097] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6096] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6102] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6100] memfd_create("syzkaller", 0 [pid 6096] <... futex resumed>) = 0 [pid 6102] <... mmap resumed>) = 0x7f0d62800000 [pid 6100] <... memfd_create resumed>) = 5 [pid 6096] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6103] <... mount resumed>) = 0 [pid 6102] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 6099] <... write resumed>) = 524288 [pid 6103] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 6100] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 [pid 6103] <... openat resumed>) = 3 [pid 6100] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 6099] munmap(0x7f0d62800000, 138412032 [pid 6103] chdir("./file2" [pid 6102] <... write resumed>) = 524288 [pid 6100] <... write resumed>) = 524288 [pid 6100] munmap(0x7f0d62800000, 138412032) = 0 [pid 6100] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6103] <... chdir resumed>) = 0 [pid 6100] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6100] close(5 [pid 6099] <... munmap resumed>) = 0 [pid 6103] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6102] munmap(0x7f0d62800000, 138412032 [pid 6103] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6102] <... munmap resumed>) = 0 [pid 6099] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 6100] <... close resumed>) = 0 [pid 6102] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6102] close(5 [pid 6100] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6096] <... futex resumed>) = 0 [pid 6100] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6096] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6103] <... futex resumed>) = 1 [pid 6100] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6098] <... futex resumed>) = 0 [pid 6096] <... futex resumed>) = 0 [pid 6103] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6099] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6098] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6103] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6100] fsync(-1 [pid 6099] close(5 [pid 6098] <... futex resumed>) = 0 [pid 6096] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6103] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 6102] <... close resumed>) = 0 [pid 6100] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 6098] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6100] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6096] <... futex resumed>) = 0 [pid 6100] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6096] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6102] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6100] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6096] <... futex resumed>) = 0 [pid 6102] <... futex resumed>) = 1 [pid 6100] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6097] <... futex resumed>) = 0 [pid 6096] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6103] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 6102] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6097] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6102] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6097] <... futex resumed>) = 0 [pid 6103] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6102] fsync(-1 [pid 6099] <... close resumed>) = 0 [pid 6097] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6102] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 6102] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6097] <... futex resumed>) = 0 [pid 6102] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6097] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6102] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6097] <... futex resumed>) = 0 [pid 6102] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6103] <... futex resumed>) = 1 [pid 6097] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6103] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6098] <... futex resumed>) = 0 [pid 6100] <... openat resumed>) = 5 [pid 6099] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6098] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6103] <... futex resumed>) = 0 [pid 6102] <... openat resumed>) = 5 [pid 6099] <... futex resumed>) = 1 [pid 6098] <... futex resumed>) = 1 [pid 6095] <... futex resumed>) = 0 [pid 6102] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6100] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6103] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 6102] <... futex resumed>) = 1 [pid 6100] <... futex resumed>) = 1 [pid 6099] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6098] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6097] <... futex resumed>) = 0 [pid 6096] <... futex resumed>) = 0 [pid 6095] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6102] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6100] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6097] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6096] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6103] <... openat resumed>) = 4 [pid 6102] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6100] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6099] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6097] <... futex resumed>) = 0 [pid 6096] <... futex resumed>) = 0 [pid 6095] <... futex resumed>) = 0 [pid 6104] <... mount resumed>) = 0 [pid 6103] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6102] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 6100] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 6099] fsync(-1 [pid 6097] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6096] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6104] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 6103] <... futex resumed>) = 1 [pid 6099] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 6098] <... futex resumed>) = 0 [pid 6095] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6104] <... openat resumed>) = 3 [pid 6103] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6099] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [ 110.615983][ T6108] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 110.635884][ T6109] NILFS (loop4): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6098] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6095] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6104] chdir("./file2" [pid 6103] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6099] <... futex resumed>) = 0 [pid 6098] <... futex resumed>) = 0 [pid 6095] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6104] <... chdir resumed>) = 0 [pid 6103] read(-1, [pid 6099] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6098] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6095] <... futex resumed>) = 0 [pid 6104] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6103] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 6095] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6104] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6103] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6104] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6103] <... futex resumed>) = 1 [pid 6098] <... futex resumed>) = 0 [pid 6104] <... futex resumed>) = 1 [pid 6103] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6101] <... futex resumed>) = 0 [pid 6098] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6104] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6103] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6101] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6098] <... futex resumed>) = 0 [pid 6104] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6103] memfd_create("syzkaller", 0 [pid 6101] <... futex resumed>) = 0 [pid 6098] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6104] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 6103] <... memfd_create resumed>) = 5 [pid 6101] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6099] <... openat resumed>) = 5 [pid 6104] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 6103] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6102] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 6100] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 6099] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6104] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6103] <... mmap resumed>) = 0x7f0d62800000 [pid 6102] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6100] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6104] <... futex resumed>) = 1 [pid 6102] <... futex resumed>) = 1 [pid 6101] <... futex resumed>) = 0 [pid 6100] <... futex resumed>) = 1 [pid 6099] <... futex resumed>) = 1 [pid 6097] <... futex resumed>) = 0 [pid 6096] <... futex resumed>) = 0 [pid 6095] <... futex resumed>) = 0 [pid 6104] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6102] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6101] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6100] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6099] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6097] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6095] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6104] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6102] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6100] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6099] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6097] <... futex resumed>) = 0 [pid 6096] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6095] <... futex resumed>) = 0 [pid 6104] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 6102] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 6101] <... futex resumed>) = 0 [pid 6100] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 6099] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 6097] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6096] <... futex resumed>) = 0 [pid 6095] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6104] <... openat resumed>) = 4 [pid 6102] <... openat resumed>) = 6 [pid 6101] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6104] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6101] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6100] <... openat resumed>) = 6 [pid 6096] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6104] <... futex resumed>) = 0 [pid 6102] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6101] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6104] read(-1, [pid 6102] <... futex resumed>) = 1 [pid 6100] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6097] <... futex resumed>) = 0 [pid 6096] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [ 110.675322][ T6107] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 110.687263][ T6106] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6102] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6100] <... futex resumed>) = 0 [pid 6097] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6096] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6102] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6100] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 6097] <... futex resumed>) = 0 [pid 6102] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 6096] <... futex resumed>) = 0 [pid 6104] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 6101] <... futex resumed>) = 0 [pid 6103] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 6097] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6104] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6101] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6103] <... write resumed>) = 524288 [pid 6104] <... futex resumed>) = 0 [pid 6101] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6104] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6103] munmap(0x7f0d62800000, 138412032 [pid 6101] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6099] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 6096] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6104] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6101] <... futex resumed>) = 0 [pid 6104] memfd_create("syzkaller", 0 [pid 6101] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6099] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6104] <... memfd_create resumed>) = 5 [pid 6099] <... futex resumed>) = 1 [pid 6095] <... futex resumed>) = 0 [pid 6104] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6103] <... munmap resumed>) = 0 [pid 6099] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6095] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6104] <... mmap resumed>) = 0x7f0d62800000 [pid 6103] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6099] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6095] <... futex resumed>) = 0 [pid 6099] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 6095] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6104] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 6103] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6099] <... openat resumed>) = 6 [pid 6103] close(5 [pid 6099] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6095] <... futex resumed>) = 0 [pid 6099] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 6095] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6099] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 6095] <... futex resumed>) = 0 [pid 6103] <... close resumed>) = 0 [pid 6104] <... write resumed>) = 524288 [pid 6095] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6103] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [ 110.730137][ T6105] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6103] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6098] <... futex resumed>) = 0 [pid 6098] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6104] munmap(0x7f0d62800000, 138412032 [pid 6103] <... futex resumed>) = 0 [pid 6098] <... futex resumed>) = 1 [pid 6104] <... munmap resumed>) = 0 [pid 6103] fsync(-1 [pid 6098] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6104] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6103] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 6104] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6103] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6104] close(5 [pid 6103] <... futex resumed>) = 1 [pid 6098] <... futex resumed>) = 0 [pid 6103] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6096] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6104] <... close resumed>) = 0 [pid 6098] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6097] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6104] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6103] <... futex resumed>) = 0 [pid 6098] <... futex resumed>) = 1 [pid 6095] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6104] <... futex resumed>) = 1 [pid 6103] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6101] <... futex resumed>) = 0 [pid 6098] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6104] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6103] <... openat resumed>) = 5 [pid 6101] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6104] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6103] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6101] <... futex resumed>) = 0 [pid 6104] fsync(-1 [pid 6103] <... futex resumed>) = 1 [pid 6101] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6098] <... futex resumed>) = 0 [pid 6104] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 6103] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6098] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6104] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6103] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6098] <... futex resumed>) = 0 [pid 6104] <... futex resumed>) = 1 [pid 6103] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 6101] <... futex resumed>) = 0 [pid 6098] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6104] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6101] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6104] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6104] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6101] <... futex resumed>) = 0 [pid 6101] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6104] <... openat resumed>) = 5 [pid 6104] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6101] <... futex resumed>) = 0 [pid 6104] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 6101] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6104] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 6101] <... futex resumed>) = 0 [pid 6101] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6103] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 6103] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6103] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6098] <... futex resumed>) = 0 [pid 6098] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6104] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 6103] <... futex resumed>) = 0 [pid 6098] <... futex resumed>) = 1 [pid 6104] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6103] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 6098] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6104] <... futex resumed>) = 1 [pid 6103] <... openat resumed>) = 6 [pid 6101] <... futex resumed>) = 0 [pid 6104] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6103] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6101] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6104] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6103] <... futex resumed>) = 1 [pid 6101] <... futex resumed>) = 0 [pid 6098] <... futex resumed>) = 0 [pid 6104] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 6103] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6101] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6103] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6098] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6103] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 6098] <... futex resumed>) = 0 [ 110.866515][ T6108] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 110.883037][ T6109] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6098] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6104] <... openat resumed>) = 6 [pid 6104] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6100] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 6100] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6100] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6096] close(3) = 0 [pid 6096] close(4) = 0 [pid 6096] close(5) = 0 [pid 6096] close(6) = 0 [pid 6096] close(7) = -1 EBADF (Bad file descriptor) [pid 6096] close(8) = -1 EBADF (Bad file descriptor) [pid 6104] <... futex resumed>) = 1 [pid 6101] <... futex resumed>) = 0 [pid 6096] close(9) = -1 EBADF (Bad file descriptor) [pid 6096] close(10) = -1 EBADF (Bad file descriptor) [pid 6096] close(11) = -1 EBADF (Bad file descriptor) [pid 6096] close(12) = -1 EBADF (Bad file descriptor) [pid 6096] close(13) = -1 EBADF (Bad file descriptor) [pid 6096] close(14) = -1 EBADF (Bad file descriptor) [pid 6096] close(15) = -1 EBADF (Bad file descriptor) [pid 6096] close(16) = -1 EBADF (Bad file descriptor) [pid 6096] close(17) = -1 EBADF (Bad file descriptor) [pid 6096] close(18) = -1 EBADF (Bad file descriptor) [pid 6096] close(19) = -1 EBADF (Bad file descriptor) [pid 6096] close(20) = -1 EBADF (Bad file descriptor) [pid 6096] close(21 [pid 6104] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 6101] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6096] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6101] <... futex resumed>) = 0 [pid 6096] close(22 [pid 6101] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6096] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6096] close(23) = -1 EBADF (Bad file descriptor) [pid 6096] close(24) = -1 EBADF (Bad file descriptor) [pid 6096] close(25) = -1 EBADF (Bad file descriptor) [pid 6096] close(26) = -1 EBADF (Bad file descriptor) [pid 6096] close(27) = -1 EBADF (Bad file descriptor) [pid 6096] close(28) = -1 EBADF (Bad file descriptor) [pid 6096] close(29) = -1 EBADF (Bad file descriptor) [pid 6096] exit_group(0 [pid 6100] <... futex resumed>) = ? [pid 6096] <... exit_group resumed>) = ? [pid 6100] +++ exited with 0 +++ [pid 6096] +++ exited with 0 +++ [pid 5834] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=39, si_uid=0, si_status=0, si_utime=0, si_stime=22 /* 0.22 s */} --- [pid 6098] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [ 110.930793][ T6106] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5834] umount2("./15", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5834] openat(AT_FDCWD, "./15", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5834] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 5834] getdents64(3, 0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 5834] umount2("./15/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5834] newfstatat(AT_FDCWD, "./15/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5834] unlink("./15/cgroup") = 0 [pid 5834] umount2("./15/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5834] newfstatat(AT_FDCWD, "./15/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5834] unlink("./15/cgroup.cpu") = 0 [pid 5834] umount2("./15/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5834] newfstatat(AT_FDCWD, "./15/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5834] unlink("./15/cgroup.net") = 0 [pid 5834] umount2("./15/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5834] newfstatat(AT_FDCWD, "./15/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5834] unlink("./15/binderfs") = 0 [pid 5834] umount2("./15/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6101] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [ 111.042691][ T6106] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 111.054029][ T6105] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 111.079371][ T6107] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6099] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 6099] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6095] close(3) = 0 [pid 6095] close(4) = 0 [pid 6095] close(5) = 0 [pid 6095] close(6) = 0 [pid 6095] close(7) = -1 EBADF (Bad file descriptor) [pid 6095] close(8) = -1 EBADF (Bad file descriptor) [pid 6095] close(9) = -1 EBADF (Bad file descriptor) [pid 6095] close(10) = -1 EBADF (Bad file descriptor) [pid 6095] close(11) = -1 EBADF (Bad file descriptor) [pid 6095] close(12) = -1 EBADF (Bad file descriptor) [pid 6095] close(13 [pid 6099] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6095] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6095] close(14) = -1 EBADF (Bad file descriptor) [pid 6095] close(15) = -1 EBADF (Bad file descriptor) [pid 6095] close(16) = -1 EBADF (Bad file descriptor) [pid 6095] close(17) = -1 EBADF (Bad file descriptor) [pid 6095] close(18) = -1 EBADF (Bad file descriptor) [pid 6095] close(19) = -1 EBADF (Bad file descriptor) [pid 6095] close(20) = -1 EBADF (Bad file descriptor) [pid 6095] close(21) = -1 EBADF (Bad file descriptor) [pid 6095] close(22) = -1 EBADF (Bad file descriptor) [pid 6095] close(23) = -1 EBADF (Bad file descriptor) [pid 6095] close(24) = -1 EBADF (Bad file descriptor) [pid 6095] close(25) = -1 EBADF (Bad file descriptor) [pid 6095] close(26) = -1 EBADF (Bad file descriptor) [pid 6095] close(27) = -1 EBADF (Bad file descriptor) [pid 6095] close(28) = -1 EBADF (Bad file descriptor) [pid 6095] close(29) = -1 EBADF (Bad file descriptor) [pid 6095] exit_group(0) = ? [pid 6099] <... futex resumed>) = ? [pid 6099] +++ exited with 0 +++ [pid 6095] +++ exited with 0 +++ [pid 5836] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=36, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5836] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5836] umount2("./14", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6102] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6102] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5836] openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6102] <... futex resumed>) = 0 [pid 5836] <... openat resumed>) = 3 [pid 6102] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6097] close(3 [pid 5836] newfstatat(3, "", [pid 6097] <... close resumed>) = 0 [pid 5836] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [ 111.093146][ T6106] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 111.106039][ T6106] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 111.129686][ T6106] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5836] getdents64(3, 0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 6097] close(4 [pid 5836] umount2("./14/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 6097] <... close resumed>) = 0 [pid 5836] newfstatat(AT_FDCWD, "./14/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6097] close(5 [pid 5836] unlink("./14/cgroup" [pid 6097] <... close resumed>) = 0 [pid 5836] <... unlink resumed>) = 0 [pid 6097] close(6 [pid 5836] umount2("./14/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5836] newfstatat(AT_FDCWD, "./14/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6097] <... close resumed>) = 0 [pid 5836] unlink("./14/cgroup.cpu" [pid 6097] close(7 [pid 5836] <... unlink resumed>) = 0 [pid 6097] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6097] close(8 [pid 5836] umount2("./14/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6097] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6097] close(9 [pid 5836] newfstatat(AT_FDCWD, "./14/cgroup.net", [pid 6097] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6097] close(10 [pid 5836] unlink("./14/cgroup.net" [pid 6097] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] <... unlink resumed>) = 0 [pid 6097] close(11 [pid 5836] umount2("./14/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6097] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6097] close(12 [pid 5836] newfstatat(AT_FDCWD, "./14/binderfs", [pid 6097] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6097] close(13 [pid 5836] unlink("./14/binderfs" [pid 6097] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] <... unlink resumed>) = 0 [pid 6097] close(14 [pid 5836] umount2("./14/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6097] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6097] close(15) = -1 EBADF (Bad file descriptor) [pid 6097] close(16) = -1 EBADF (Bad file descriptor) [pid 6097] close(17) = -1 EBADF (Bad file descriptor) [pid 6097] close(18) = -1 EBADF (Bad file descriptor) [pid 6097] close(19) = -1 EBADF (Bad file descriptor) [pid 6097] close(20) = -1 EBADF (Bad file descriptor) [pid 6097] close(21) = -1 EBADF (Bad file descriptor) [pid 6097] close(22) = -1 EBADF (Bad file descriptor) [pid 6097] close(23) = -1 EBADF (Bad file descriptor) [pid 6097] close(24) = -1 EBADF (Bad file descriptor) [pid 6097] close(25) = -1 EBADF (Bad file descriptor) [pid 6097] close(26) = -1 EBADF (Bad file descriptor) [pid 6097] close(27) = -1 EBADF (Bad file descriptor) [pid 6097] close(28) = -1 EBADF (Bad file descriptor) [pid 6097] close(29) = -1 EBADF (Bad file descriptor) [pid 6097] exit_group(0) = ? [ 111.161384][ T6106] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 111.183554][ T6105] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 111.190036][ T6106] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6102] <... futex resumed>) = ? [pid 6102] +++ exited with 0 +++ [pid 6097] +++ exited with 0 +++ [pid 5835] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=33, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 5835] umount2("./14", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5835] openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5835] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 5835] getdents64(3, 0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 5835] umount2("./14/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5835] newfstatat(AT_FDCWD, "./14/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5835] unlink("./14/cgroup") = 0 [pid 5835] umount2("./14/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5835] newfstatat(AT_FDCWD, "./14/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5835] unlink("./14/cgroup.cpu") = 0 [pid 5835] umount2("./14/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5835] newfstatat(AT_FDCWD, "./14/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5835] unlink("./14/cgroup.net") = 0 [ 111.203452][ T6105] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 111.221547][ T6106] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 111.250911][ T6106] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5835] umount2("./14/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5835] newfstatat(AT_FDCWD, "./14/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5835] unlink("./14/binderfs") = 0 [ 111.253773][ T6105] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 111.269703][ T6106] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 111.280328][ T6109] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 111.287206][ T6106] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5835] umount2("./14/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6103] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 6103] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6103] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6104] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 6104] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6101] close(3) = 0 [pid 6101] close(4) = 0 [pid 6101] close(5) = 0 [pid 6101] close(6) = 0 [pid 6101] close(7) = -1 EBADF (Bad file descriptor) [pid 6101] close(8) = -1 EBADF (Bad file descriptor) [pid 6101] close(9) = -1 EBADF (Bad file descriptor) [pid 6101] close(10) = -1 EBADF (Bad file descriptor) [pid 6101] close(11) = -1 EBADF (Bad file descriptor) [pid 6101] close(12) = -1 EBADF (Bad file descriptor) [pid 6101] close(13) = -1 EBADF (Bad file descriptor) [pid 6101] close(14) = -1 EBADF (Bad file descriptor) [pid 6101] close(15) = -1 EBADF (Bad file descriptor) [pid 6101] close(16) = -1 EBADF (Bad file descriptor) [pid 6101] close(17) = -1 EBADF (Bad file descriptor) [pid 6101] close(18) = -1 EBADF (Bad file descriptor) [pid 6101] close(19) = -1 EBADF (Bad file descriptor) [pid 6101] close(20) = -1 EBADF (Bad file descriptor) [pid 6101] close(21) = -1 EBADF (Bad file descriptor) [pid 6101] close(22) = -1 EBADF (Bad file descriptor) [pid 6101] close(23) = -1 EBADF (Bad file descriptor) [pid 6101] close(24) = -1 EBADF (Bad file descriptor) [pid 6101] close(25) = -1 EBADF (Bad file descriptor) [pid 6101] close(26) = -1 EBADF (Bad file descriptor) [pid 6101] close(27) = -1 EBADF (Bad file descriptor) [pid 6101] close(28) = -1 EBADF (Bad file descriptor) [pid 6101] close(29) = -1 EBADF (Bad file descriptor) [pid 6101] exit_group(0) = ? [ 111.304939][ T6108] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 111.311564][ T6106] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 111.324966][ T6107] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 111.335486][ T6105] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6098] close(3 [pid 6104] +++ exited with 0 +++ [pid 6101] +++ exited with 0 +++ [pid 6098] <... close resumed>) = 0 [pid 6098] close(4 [pid 5837] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=36, si_uid=0, si_status=0, si_utime=0, si_stime=23 /* 0.23 s */} --- [ 111.368316][ T6107] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 111.372695][ T6106] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 111.380821][ T6107] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 111.390392][ T6105] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6098] <... close resumed>) = 0 [pid 6098] close(5) = 0 [ 111.402365][ T6107] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 111.412595][ T6106] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 111.424086][ T6107] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 111.435645][ T6105] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 111.445708][ T6107] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5837] umount2("./15", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6098] close(6 [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 111.459214][ T6105] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 111.480069][ T6107] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 111.480276][ T6107] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 111.491800][ T6105] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6098] <... close resumed>) = 0 [pid 5837] openat(AT_FDCWD, "./15", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6098] close(7 [pid 5837] <... openat resumed>) = 3 [pid 6098] <... close resumed>) = -1 EBADF (Bad file descriptor) [ 111.512827][ T6107] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 111.513718][ T6105] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 111.525135][ T6106] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 111.535949][ T6105] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 111.546308][ T6107] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5837] newfstatat(3, "", [pid 6098] close(8 [pid 5837] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 6098] <... close resumed>) = -1 EBADF (Bad file descriptor) [ 111.557601][ T6105] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 111.568805][ T6106] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 111.582856][ T6105] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 111.589671][ T6107] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5837] getdents64(3, [pid 6098] close(9 [pid 5837] <... getdents64 resumed>0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 6098] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5837] umount2("./15/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 6098] close(10) = -1 EBADF (Bad file descriptor) [ 111.600626][ T6105] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 111.611698][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 111.622731][ T6105] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 111.646172][ T6105] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5837] newfstatat(AT_FDCWD, "./15/cgroup", [pid 6098] close(11 [pid 5837] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6098] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5837] unlink("./15/cgroup" [pid 6098] close(12 [pid 5837] <... unlink resumed>) = 0 [pid 6098] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5837] umount2("./15/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6098] close(13) = -1 EBADF (Bad file descriptor) [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 111.660309][ T6107] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 111.661671][ T5836] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 111.672319][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 111.684265][ T5836] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 111.696172][ T6107] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6098] close(14 [pid 5837] newfstatat(AT_FDCWD, "./15/cgroup.cpu", [pid 6098] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5837] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [ 111.717421][ T5836] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 111.717974][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 111.730291][ T5836] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 111.740746][ T6107] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 111.751224][ T5836] NILFS (loop2): disposed unprocessed dirty file(s) when stopping log writer [pid 6098] close(15 [pid 5837] unlink("./15/cgroup.cpu" [pid 6098] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6098] close(16 [pid 5837] <... unlink resumed>) = 0 [pid 6098] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6098] close(17 [pid 5837] umount2("./15/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6098] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6098] close(18 [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6098] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6098] close(19 [pid 5837] newfstatat(AT_FDCWD, "./15/cgroup.net", [pid 6098] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6098] close(20 [pid 5837] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6098] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5837] unlink("./15/cgroup.net" [pid 6098] close(21 [pid 5837] <... unlink resumed>) = 0 [pid 6098] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5837] umount2("./15/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6098] close(22 [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6098] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5837] newfstatat(AT_FDCWD, "./15/binderfs", [pid 6098] close(23) = -1 EBADF (Bad file descriptor) [pid 5837] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6098] close(24 [pid 5837] unlink("./15/binderfs" [pid 6098] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6098] close(25 [pid 5837] <... unlink resumed>) = 0 [pid 6098] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5837] umount2("./15/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6098] close(26) = -1 EBADF (Bad file descriptor) [pid 6098] close(27) = -1 EBADF (Bad file descriptor) [pid 6098] close(28) = -1 EBADF (Bad file descriptor) [pid 6098] close(29) = -1 EBADF (Bad file descriptor) [pid 6098] exit_group(0 [pid 6103] <... futex resumed>) = ? [pid 6098] <... exit_group resumed>) = ? [pid 6103] +++ exited with 0 +++ [ 111.761936][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 111.792927][ T6107] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 111.796978][ T5834] NILFS (loop1): disposed unprocessed dirty file(s) when stopping log writer [ 111.810408][ T5835] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 111.820403][ T6109] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 111.827213][ T5835] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 111.853724][ T5835] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6098] +++ exited with 0 +++ [pid 5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=40, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 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, 0x55555fa3d730 /* 7 entries */, 32768) = 208 [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] 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.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/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/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5836] <... umount2 resumed>) = 0 [pid 5835] <... umount2 resumed>) = 0 [pid 5835] umount2("./14/file2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5835] newfstatat(AT_FDCWD, "./14/file2", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5835] umount2("./14/file2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5835] openat(AT_FDCWD, "./14/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5835] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 5835] getdents64(4, 0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 5835] getdents64(4, 0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 5836] umount2("./14/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5835] close(4 [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5835] <... close resumed>) = 0 [pid 5836] newfstatat(AT_FDCWD, "./14/file2", [pid 5835] rmdir("./14/file2" [pid 5836] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5835] <... rmdir resumed>) = 0 [pid 5836] umount2("./14/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5835] getdents64(3, [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5835] <... getdents64 resumed>0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 5836] openat(AT_FDCWD, "./14/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5835] close(3 [pid 5836] <... openat resumed>) = 4 [pid 5835] <... close resumed>) = 0 [pid 5836] newfstatat(4, "", [pid 5835] rmdir("./14" [pid 5836] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 5835] <... rmdir resumed>) = 0 [pid 5836] getdents64(4, [pid 5835] mkdir("./15", 0777 [pid 5836] <... getdents64 resumed>0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 5835] <... mkdir resumed>) = 0 [pid 5836] getdents64(4, [pid 5835] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5836] <... getdents64 resumed>0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 5835] <... openat resumed>) = 3 [pid 5836] close(4 [pid 5835] ioctl(3, LOOP_CLR_FD [pid 5836] <... close resumed>) = 0 [pid 5835] <... ioctl resumed>) = 0 [pid 5836] rmdir("./14/file2" [pid 5835] close(3 [pid 5836] <... rmdir resumed>) = 0 [pid 5835] <... close resumed>) = 0 [ 111.867800][ T5835] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 111.879628][ T5835] NILFS (loop3): disposed unprocessed dirty file(s) when stopping log writer [ 111.881095][ T6108] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 111.901184][ T6109] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5835] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5836] getdents64(3, [pid 5835] <... clone resumed>, child_tidptr=0x55555fa3c690) = 35 [pid 5836] <... getdents64 resumed>0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 5836] close(3) = 0 [pid 5836] rmdir("./14") = 0 [pid 5836] mkdir("./15", 0777 [pid 5834] <... umount2 resumed>) = 0 ./strace-static-x86_64: Process 6110 attached [pid 6110] set_robust_list(0x55555fa3c6a0, 24 [pid 5834] umount2("./15/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6110] <... set_robust_list resumed>) = 0 [pid 5836] <... mkdir resumed>) = 0 [pid 6110] chdir("./15" [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6110] <... chdir resumed>) = 0 [pid 5834] newfstatat(AT_FDCWD, "./15/file2", [pid 6110] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5834] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6110] <... prctl resumed>) = 0 [pid 5834] umount2("./15/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6110] setpgid(0, 0 [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6110] <... setpgid resumed>) = 0 [pid 5834] openat(AT_FDCWD, "./15/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6110] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5834] <... openat resumed>) = 4 [ 111.946211][ T6109] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 111.963151][ T6109] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 111.976464][ T6108] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6110] <... symlink resumed>) = 0 [pid 5834] newfstatat(4, "", [pid 6110] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 5834] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 6110] <... symlink resumed>) = 0 [pid 5834] getdents64(4, 0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 6110] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5834] getdents64(4, [pid 6110] <... symlink resumed>) = 0 [pid 5834] <... getdents64 resumed>0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 6110] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5834] close(4 [pid 6110] <... openat resumed>) = 3 [pid 5834] <... close resumed>) = 0 [pid 6110] write(3, "1000", 4 [pid 5834] rmdir("./15/file2" [pid 6110] <... write resumed>) = 4 [pid 5834] <... rmdir resumed>) = 0 [pid 6110] close(3 [pid 5836] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5834] getdents64(3, [pid 6110] <... close resumed>) = 0 [pid 5834] <... getdents64 resumed>0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 6110] symlink("/dev/binderfs", "./binderfs" [pid 5834] close(3 [pid 6110] <... symlink resumed>) = 0 [pid 5834] <... close resumed>) = 0 [pid 5834] rmdir("./15") = 0 [pid 5834] mkdir("./16", 0777executing program [pid 6110] write(1, "executing program\n", 18 [pid 5834] <... mkdir resumed>) = 0 [pid 6110] <... write resumed>) = 18 [pid 5834] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6110] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5834] <... openat resumed>) = 3 [pid 6110] <... futex resumed>) = 0 [pid 5834] ioctl(3, LOOP_CLR_FD [pid 6110] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, [pid 5836] <... openat resumed>) = 3 [pid 5834] <... ioctl resumed>) = 0 [pid 6110] <... rt_sigaction resumed>NULL, 8) = 0 [pid 6110] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [ 111.990522][ T6109] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 112.004241][ T6109] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 112.018362][ T6109] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 112.029324][ T6108] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5834] close(3 [pid 6110] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5834] <... close resumed>) = 0 [pid 6110] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5836] ioctl(3, LOOP_CLR_FD [pid 6110] <... mmap resumed>) = 0x7f0d6adff000 [pid 6110] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6110] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6110] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0}./strace-static-x86_64: Process 6111 attached [pid 6111] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 6110] <... clone3 resumed> => {parent_tid=[36]}, 88) = 36 [pid 6111] <... rseq resumed>) = 0 [pid 6110] rt_sigprocmask(SIG_SETMASK, [], [pid 6111] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 6110] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6111] <... set_robust_list resumed>) = 0 [pid 6110] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6111] rt_sigprocmask(SIG_SETMASK, [], [pid 6110] <... futex resumed>) = 0 [pid 6111] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6110] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [ 112.041653][ T6109] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 112.050729][ T6108] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 112.053423][ T6109] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 112.065526][ T6108] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6111] memfd_create("syzkaller", 0) = 3 [pid 6111] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 [pid 6111] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5836] <... ioctl resumed>) = 0 [pid 5834] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6112 attached [pid 6112] set_robust_list(0x55555fa3c6a0, 24 [pid 5834] <... clone resumed>, child_tidptr=0x55555fa3c690) = 41 [pid 6112] <... set_robust_list resumed>) = 0 [pid 6112] chdir("./16") = 0 [pid 6112] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6112] setpgid(0, 0 [pid 5836] close(3 [pid 6112] <... setpgid resumed>) = 0 [pid 6112] symlink("/syzcgroup/unified/syz1", "./cgroup") = 0 [pid 6112] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu") = 0 [pid 6112] symlink("/syzcgroup/net/syz1", "./cgroup.net") = 0 [pid 5836] <... close resumed>) = 0 [pid 6112] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6112] write(3, "1000", 4) = 4 [pid 6112] close(3) = 0 [ 112.076944][ T6109] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 112.101781][ T6109] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 112.114457][ T6109] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 112.133505][ T6109] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6112] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 6112] write(1, "executing program\n", 18 [pid 5836] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6112] <... write resumed>) = 18 [pid 6112] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6112] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, NULL, 8) = 0 [pid 6112] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6112] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0d6adff000 [pid 6112] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6112] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6112] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0} => {parent_tid=[42]}, 88) = 42 [pid 6112] rt_sigprocmask(SIG_SETMASK, [], ./strace-static-x86_64: Process 6114 attached NULL, 8) = 0 [pid 6112] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6112] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6111] <... write resumed>) = 1048576 [pid 6114] set_robust_list(0x55555fa3c6a0, 24 [pid 5836] <... clone resumed>, child_tidptr=0x55555fa3c690) = 38 [pid 6111] munmap(0x7f0d62800000, 138412032) = 0 [pid 6111] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [ 112.145762][ T6109] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 112.160729][ T6109] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 112.172728][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 112.185121][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6111] ioctl(4, LOOP_SET_FD, 3 [pid 6114] <... set_robust_list resumed>) = 0 [pid 6114] chdir("./15" [pid 6111] <... ioctl resumed>) = 0 [pid 6114] <... chdir resumed>) = 0 [ 112.191210][ T6111] loop3: detected capacity change from 0 to 2048 [ 112.197281][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 112.203908][ T6108] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 112.214963][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 112.236635][ T5837] NILFS (loop4): disposed unprocessed dirty file(s) when stopping log writer [pid 6111] close(3 [pid 6114] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6111] <... close resumed>) = 0 [pid 6111] close(4 [pid 6114] <... prctl resumed>) = 0 [pid 6111] <... close resumed>) = 0 [pid 6114] setpgid(0, 0 [pid 6111] mkdir("./file2", 0777 [pid 6114] <... setpgid resumed>) = 0 ./strace-static-x86_64: Process 6113 attached [pid 6114] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 6111] <... mkdir resumed>) = 0 [pid 6114] <... symlink resumed>) = 0 [pid 6113] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 6111] mount("/dev/loop3", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [ 112.242405][ T6108] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 112.267870][ T6108] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 112.287086][ T6108] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6114] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 6113] <... rseq resumed>) = 0 [pid 6114] <... symlink resumed>) = 0 [pid 6113] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 6114] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 6113] <... set_robust_list resumed>) = 0 [pid 6114] <... symlink resumed>) = 0 [pid 6113] rt_sigprocmask(SIG_SETMASK, [], [pid 6114] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6113] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6114] <... openat resumed>) = 3 [pid 6113] memfd_create("syzkaller", 0 [pid 6114] write(3, "1000", 4 [pid 6113] <... memfd_create resumed>) = 3 [pid 6114] <... write resumed>) = 4 [pid 6113] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6114] close(3 [pid 6113] <... mmap resumed>) = 0x7f0d62800000 [pid 6114] <... close resumed>) = 0 [pid 6114] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 6114] write(1, "executing program\n", 18) = 18 [pid 6114] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6114] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, NULL, 8) = 0 [pid 6114] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6114] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0d6adff000 [pid 6114] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6114] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6113] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6114] <... rt_sigprocmask resumed>[], 8) = 0 [ 112.290153][ T5838] udevd[5838]: incorrect nilfs2 checksum on /dev/loop3 [ 112.298408][ T6108] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 112.316161][ T6108] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 112.323239][ T6111] NILFS (loop3): broken superblock, retrying with spare superblock (blocksize = 1024) [ 112.327916][ T6108] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6114] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0} [pid 5837] <... umount2 resumed>) = 0 [pid 6114] <... clone3 resumed> => {parent_tid=[39]}, 88) = 39 [pid 5837] umount2("./15/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6114] rt_sigprocmask(SIG_SETMASK, [], [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6114] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5837] newfstatat(AT_FDCWD, "./15/file2", [pid 6114] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6114] <... futex resumed>) = 0 [pid 5837] umount2("./15/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6114] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5837] openat(AT_FDCWD, "./15/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 6115 attached ) = 4 [pid 5837] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 5837] getdents64(4, 0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 5837] getdents64(4, 0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 5837] close(4) = 0 [pid 5837] rmdir("./15/file2") = 0 [pid 5837] getdents64(3, 0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 5837] close(3) = 0 [pid 5837] rmdir("./15") = 0 [pid 6115] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 5837] mkdir("./16", 0777 [pid 6115] <... rseq resumed>) = 0 [pid 5837] <... mkdir resumed>) = 0 [pid 5837] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5837] ioctl(3, LOOP_CLR_FD) = 0 [pid 5837] close(3) = 0 [pid 6115] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 6113] <... write resumed>) = 1048576 [ 112.348971][ T6108] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 112.360495][ T6108] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 112.372109][ T6108] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5837] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6116 attached [pid 6115] <... set_robust_list resumed>) = 0 [pid 6113] munmap(0x7f0d62800000, 138412032) = 0 [pid 5837] <... clone resumed>, child_tidptr=0x55555fa3c690) = 38 [pid 6116] set_robust_list(0x55555fa3c6a0, 24 [pid 6115] rt_sigprocmask(SIG_SETMASK, [], [pid 6116] <... set_robust_list resumed>) = 0 [pid 6115] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6116] chdir("./16" [pid 6115] memfd_create("syzkaller", 0 [pid 6113] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 6113] ioctl(4, LOOP_SET_FD, 3 [pid 6116] <... chdir resumed>) = 0 [pid 6115] <... memfd_create resumed>) = 3 [pid 6115] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6116] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6115] <... mmap resumed>) = 0x7f0d62800000 [ 112.394233][ T5833] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 112.405404][ T5833] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 112.417948][ T5833] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 112.422139][ T6113] loop1: detected capacity change from 0 to 2048 [ 112.430146][ T5833] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6113] <... ioctl resumed>) = 0 [pid 6116] setpgid(0, 0 [pid 6115] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6111] <... mount resumed>) = 0 [pid 6113] close(3) = 0 [pid 6113] close(4) = 0 [pid 6113] mkdir("./file2", 0777) = 0 [pid 6111] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 6113] mount("/dev/loop1", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 6116] <... setpgid resumed>) = 0 [pid 6115] <... write resumed>) = 1048576 [pid 6111] <... openat resumed>) = 3 [pid 6116] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 6115] munmap(0x7f0d62800000, 138412032 [pid 6111] chdir("./file2" [pid 6116] <... symlink resumed>) = 0 [pid 6115] <... munmap resumed>) = 0 [pid 6111] <... chdir resumed>) = 0 [pid 6116] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 6115] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 6111] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6116] <... symlink resumed>) = 0 [pid 6115] <... openat resumed>) = 4 [pid 6111] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6116] symlink("/syzcgroup/net/syz4", "./cgroup.net" [ 112.453560][ T5833] NILFS (loop0): disposed unprocessed dirty file(s) when stopping log writer [ 112.459356][ T6117] NILFS (loop3): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 112.491297][ T6115] loop2: detected capacity change from 0 to 2048 [pid 6115] ioctl(4, LOOP_SET_FD, 3 [pid 6111] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6116] <... symlink resumed>) = 0 [pid 6115] <... ioctl resumed>) = 0 [pid 6111] <... futex resumed>) = 1 [pid 6110] <... futex resumed>) = 0 [pid 6116] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6115] close(3 [pid 6111] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6110] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6116] <... openat resumed>) = 3 [pid 6115] <... close resumed>) = 0 [pid 6111] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6110] <... futex resumed>) = 0 [pid 6116] write(3, "1000", 4 [pid 6115] close(4 [pid 6111] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 6110] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6116] <... write resumed>) = 4 [pid 6115] <... close resumed>) = 0 [pid 6111] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 6116] close(3 [pid 6115] mkdir("./file2", 0777 [pid 6111] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6116] <... close resumed>) = 0 [pid 6115] <... mkdir resumed>) = 0 [pid 6111] <... futex resumed>) = 1 [pid 6110] <... futex resumed>) = 0 [pid 6116] symlink("/dev/binderfs", "./binderfs" [pid 6115] mount("/dev/loop2", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 6111] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6110] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6116] <... symlink resumed>) = 0 [pid 6111] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6116] write(1, "executing program\n", 18 executing program [pid 6111] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 6110] <... futex resumed>) = 0 [pid 6116] <... write resumed>) = 18 [pid 6111] <... openat resumed>) = 4 [pid 6116] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6110] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6111] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6116] <... futex resumed>) = 0 [pid 6110] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6116] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, [pid 6111] <... futex resumed>) = 0 [ 112.491839][ T6113] NILFS (loop1): broken superblock, retrying with spare superblock (blocksize = 1024) [ 112.505245][ T6115] NILFS (loop2): broken superblock, retrying with spare superblock (blocksize = 1024) [ 112.543030][ T6118] NILFS (loop1): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6110] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6116] <... rt_sigaction resumed>NULL, 8) = 0 [pid 6111] read(-1, [pid 6110] <... futex resumed>) = 0 [pid 6116] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 6111] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 6110] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5833] <... umount2 resumed>) = 0 [pid 6116] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6115] <... mount resumed>) = 0 [pid 6113] <... mount resumed>) = 0 [pid 6111] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6110] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6116] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6113] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 6111] <... futex resumed>) = 0 [pid 6110] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6116] <... mmap resumed>) = 0x7f0d6adff000 [pid 6113] <... openat resumed>) = 3 [pid 6111] memfd_create("syzkaller", 0 [pid 6110] <... futex resumed>) = 0 [pid 6116] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE [pid 6113] chdir("./file2" [pid 6111] <... memfd_create resumed>) = 5 [pid 6110] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6116] <... mprotect resumed>) = 0 [pid 6113] <... chdir resumed>) = 0 [pid 6111] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6116] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6113] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6111] <... mmap resumed>) = 0x7f0d62800000 [pid 6116] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6115] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 6113] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5833] umount2("./15/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6116] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0} [pid 6115] <... openat resumed>) = 3 [pid 6113] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 6120 attached [pid 6115] chdir("./file2" [pid 6113] <... futex resumed>) = 1 [pid 6112] <... futex resumed>) = 0 [pid 6120] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 6116] <... clone3 resumed> => {parent_tid=[39]}, 88) = 39 [pid 6115] <... chdir resumed>) = 0 [pid 6113] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6112] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6111] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5833] newfstatat(AT_FDCWD, "./15/file2", [pid 6120] <... rseq resumed>) = 0 [pid 6116] rt_sigprocmask(SIG_SETMASK, [], [pid 6115] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 6113] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6112] <... futex resumed>) = 0 [pid 5833] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6120] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 6116] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6115] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6113] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 6112] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5833] umount2("./15/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6120] <... set_robust_list resumed>) = 0 [pid 6116] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6115] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6113] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6120] rt_sigprocmask(SIG_SETMASK, [], [pid 6116] <... futex resumed>) = 0 [pid 6115] <... futex resumed>) = 1 [pid 6114] <... futex resumed>) = 0 [pid 6113] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5833] openat(AT_FDCWD, "./15/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6120] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6116] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6115] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6114] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6113] <... futex resumed>) = 1 [pid 6112] <... futex resumed>) = 0 [pid 6111] <... write resumed>) = 524288 [pid 6120] memfd_create("syzkaller", 0 [pid 6115] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6114] <... futex resumed>) = 0 [pid 6113] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6112] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5833] <... openat resumed>) = 4 [pid 6120] <... memfd_create resumed>) = 3 [pid 6115] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 6114] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6113] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6112] <... futex resumed>) = 0 [pid 6111] munmap(0x7f0d62800000, 138412032 [pid 5833] newfstatat(4, "", [pid 6120] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6115] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 6113] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 6112] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6111] <... munmap resumed>) = 0 [pid 6120] <... mmap resumed>) = 0x7f0d62800000 [pid 6115] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6113] <... openat resumed>) = 4 [pid 5833] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 6115] <... futex resumed>) = 1 [pid 6114] <... futex resumed>) = 0 [pid 6113] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6111] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6113] <... futex resumed>) = 1 [pid 6112] <... futex resumed>) = 0 [pid 6111] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6113] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6112] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6113] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6112] <... futex resumed>) = 0 [pid 6111] close(5 [pid 6113] read(-1, [pid 6112] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6113] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 6113] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6112] <... futex resumed>) = 0 [pid 6113] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6112] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6113] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6112] <... futex resumed>) = 0 [pid 6113] memfd_create("syzkaller", 0 [pid 6112] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6113] <... memfd_create resumed>) = 5 [pid 6113] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 [pid 6120] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6115] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6114] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6111] <... close resumed>) = 0 [pid 5833] getdents64(4, [pid 6115] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6114] <... futex resumed>) = 0 [pid 6113] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5833] <... getdents64 resumed>0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 6115] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 6114] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6113] <... write resumed>) = 524288 [pid 6111] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5833] getdents64(4, [pid 6115] <... openat resumed>) = 4 [pid 6113] munmap(0x7f0d62800000, 138412032 [pid 5833] <... getdents64 resumed>0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 6115] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5833] close(4 [pid 6115] <... futex resumed>) = 1 [pid 6114] <... futex resumed>) = 0 [pid 5833] <... close resumed>) = 0 [pid 6115] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6114] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5833] rmdir("./15/file2" [pid 6115] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6114] <... futex resumed>) = 0 [pid 5833] <... rmdir resumed>) = 0 [pid 6115] read(-1, [pid 6114] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5833] getdents64(3, [pid 6115] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 5833] <... getdents64 resumed>0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 6120] <... write resumed>) = 1048576 [pid 6115] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5833] close(3 [pid 6115] <... futex resumed>) = 1 [pid 6114] <... futex resumed>) = 0 [pid 5833] <... close resumed>) = 0 [pid 6115] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6114] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5833] rmdir("./15" [pid 6120] munmap(0x7f0d62800000, 138412032 [ 112.550109][ T5855] udevd[5855]: incorrect nilfs2 checksum on /dev/loop2 [ 112.568627][ T6119] NILFS (loop2): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 112.572602][ T5838] udevd[5838]: incorrect nilfs2 checksum on /dev/loop1 [pid 6115] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6114] <... futex resumed>) = 0 [pid 6113] <... munmap resumed>) = 0 [pid 6111] <... futex resumed>) = 1 [pid 6110] <... futex resumed>) = 0 [pid 5833] <... rmdir resumed>) = 0 [pid 6120] <... munmap resumed>) = 0 [pid 6115] memfd_create("syzkaller", 0 [pid 6114] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6113] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6111] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6110] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5833] mkdir("./16", 0777 [pid 6120] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6115] <... memfd_create resumed>) = 5 [pid 6113] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6111] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6110] <... futex resumed>) = 0 [pid 5833] <... mkdir resumed>) = 0 [pid 6120] <... openat resumed>) = 4 [pid 6115] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6113] close(5 [pid 6111] fsync(-1 [pid 6110] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5833] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6115] <... mmap resumed>) = 0x7f0d62800000 [pid 6120] ioctl(4, LOOP_SET_FD, 3 [pid 6113] <... close resumed>) = 0 [pid 6115] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 6111] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 5833] <... openat resumed>) = 3 [pid 6120] <... ioctl resumed>) = 0 [pid 6113] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6111] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5833] ioctl(3, LOOP_CLR_FD [pid 6120] close(3 [pid 6113] <... futex resumed>) = 1 [pid 6112] <... futex resumed>) = 0 [pid 6111] <... futex resumed>) = 1 [pid 6110] <... futex resumed>) = 0 [pid 5833] <... ioctl resumed>) = 0 [pid 6120] <... close resumed>) = 0 [pid 6115] <... write resumed>) = 524288 [pid 6113] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6112] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6111] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6110] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5833] close(3 [pid 6120] close(4 [pid 6115] munmap(0x7f0d62800000, 138412032 [pid 6113] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6112] <... futex resumed>) = 0 [pid 6111] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6110] <... futex resumed>) = 0 [pid 6120] <... close resumed>) = 0 [pid 6115] <... munmap resumed>) = 0 [pid 6113] fsync(-1 [pid 6112] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6111] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6110] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6120] mkdir("./file2", 0777 [pid 6115] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 6113] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 6111] <... openat resumed>) = 5 [pid 6120] <... mkdir resumed>) = 0 [pid 6113] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6111] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6115] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6113] <... futex resumed>) = 1 [pid 6112] <... futex resumed>) = 0 [pid 6111] <... futex resumed>) = 1 [pid 6110] <... futex resumed>) = 0 [pid 6111] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [ 112.645117][ T6120] loop4: detected capacity change from 0 to 2048 [pid 6110] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6120] mount("/dev/loop4", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 6115] close(5 [pid 6113] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6112] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6110] <... futex resumed>) = 0 [pid 6115] <... close resumed>) = 0 [pid 6113] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6112] <... futex resumed>) = 0 [pid 6110] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5833] <... close resumed>) = 0 [pid 6113] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6112] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6121 attached [pid 6121] set_robust_list(0x55555fa3c6a0, 24 [pid 6113] <... openat resumed>) = 5 [pid 6121] <... set_robust_list resumed>) = 0 [pid 6121] chdir("./16") = 0 [pid 6121] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6121] setpgid(0, 0) = 0 [pid 6121] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 6113] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6111] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 5833] <... clone resumed>, child_tidptr=0x55555fa3c690) = 42 [pid 6111] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6110] <... futex resumed>) = 0 [pid 6111] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6110] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6111] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6110] <... futex resumed>) = 0 [pid 6111] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 6110] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6120] <... mount resumed>) = 0 [pid 6111] <... openat resumed>) = 6 [pid 6121] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 6120] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 6111] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6121] <... symlink resumed>) = 0 [pid 6120] <... openat resumed>) = 3 [pid 6111] <... futex resumed>) = 1 [pid 6110] <... futex resumed>) = 0 [pid 6121] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 6120] chdir("./file2" [pid 6113] <... futex resumed>) = 1 [pid 6112] <... futex resumed>) = 0 [pid 6111] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [ 112.691475][ T6120] NILFS (loop4): broken superblock, retrying with spare superblock (blocksize = 1024) [ 112.709111][ T6117] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 112.722255][ T5855] udevd[5855]: incorrect nilfs2 checksum on /dev/loop4 [pid 6110] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6120] <... chdir resumed>) = 0 [pid 6113] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 6112] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6111] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6110] <... futex resumed>) = 0 [pid 6120] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6111] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 6110] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6120] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6112] <... futex resumed>) = 0 [pid 6121] <... symlink resumed>) = 0 [pid 6120] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6112] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6120] <... futex resumed>) = 1 [pid 6116] <... futex resumed>) = 0 [pid 6115] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6121] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6120] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6116] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6115] <... futex resumed>) = 1 [pid 6114] <... futex resumed>) = 0 [pid 6121] <... openat resumed>) = 3 [pid 6120] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6116] <... futex resumed>) = 0 [pid 6115] fsync(-1 [pid 6114] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6121] write(3, "1000", 4 [pid 6120] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 6116] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6114] <... futex resumed>) = 0 [pid 6120] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 6114] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6120] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6121] <... write resumed>) = 4 [pid 6120] <... futex resumed>) = 1 [pid 6116] <... futex resumed>) = 0 [pid 6115] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 6121] close(3 [pid 6115] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6115] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6114] <... futex resumed>) = 0 [pid 6114] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6121] <... close resumed>) = 0 [pid 6120] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6116] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6115] <... futex resumed>) = 0 [pid 6114] <... futex resumed>) = 1 [pid 6120] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6116] <... futex resumed>) = 0 [pid 6115] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6114] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6121] symlink("/dev/binderfs", "./binderfs" [pid 6120] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 6116] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6115] <... openat resumed>) = 5 [ 112.737080][ T6122] NILFS (loop4): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 112.757325][ T6118] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6121] <... symlink resumed>) = 0 [pid 6120] <... openat resumed>) = 4 [pid 6115] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000executing program ) = 1 [pid 6114] <... futex resumed>) = 0 [pid 6121] write(1, "executing program\n", 18 [pid 6120] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6115] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6114] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6113] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 6121] <... write resumed>) = 18 [pid 6120] <... futex resumed>) = 1 [pid 6116] <... futex resumed>) = 0 [pid 6115] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6114] <... futex resumed>) = 0 [pid 6113] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6121] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6120] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6116] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6115] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 6114] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6113] <... futex resumed>) = 1 [pid 6112] <... futex resumed>) = 0 [pid 6121] <... futex resumed>) = 0 [pid 6120] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6116] <... futex resumed>) = 0 [pid 6113] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6112] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6121] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, [pid 6120] read(-1, [pid 6116] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6113] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6121] <... rt_sigaction resumed>NULL, 8) = 0 [pid 6120] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 6113] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 6112] <... futex resumed>) = 0 [pid 6121] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 6120] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6113] <... openat resumed>) = 6 [pid 6121] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6120] <... futex resumed>) = 1 [pid 6116] <... futex resumed>) = 0 [pid 6113] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6112] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6121] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6120] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6116] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6113] <... futex resumed>) = 0 [pid 6112] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6121] <... mmap resumed>) = 0x7f0d6adff000 [pid 6120] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6116] <... futex resumed>) = 0 [pid 6113] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6112] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6121] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE [pid 6120] memfd_create("syzkaller", 0 [pid 6116] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6113] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6112] <... futex resumed>) = 0 [pid 6121] <... mprotect resumed>) = 0 [pid 6120] <... memfd_create resumed>) = 5 [pid 6113] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 6121] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6120] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6121] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6121] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0} [pid 6120] <... mmap resumed>) = 0x7f0d62800000 ./strace-static-x86_64: Process 6123 attached [pid 6120] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 6123] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 6121] <... clone3 resumed> => {parent_tid=[43]}, 88) = 43 [pid 6115] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 6112] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6123] <... rseq resumed>) = 0 [pid 6121] rt_sigprocmask(SIG_SETMASK, [], [pid 6123] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 6121] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6115] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6123] <... set_robust_list resumed>) = 0 [pid 6121] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6120] <... write resumed>) = 524288 [pid 6115] <... futex resumed>) = 1 [pid 6114] <... futex resumed>) = 0 [pid 6123] rt_sigprocmask(SIG_SETMASK, [], [pid 6121] <... futex resumed>) = 0 [pid 6115] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 6114] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6123] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6121] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6114] <... futex resumed>) = 0 [pid 6110] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6123] memfd_create("syzkaller", 0) = 3 [pid 6114] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6123] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6115] <... openat resumed>) = 6 [pid 6123] <... mmap resumed>) = 0x7f0d62800000 [pid 6115] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [ 112.786535][ T6119] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6114] <... futex resumed>) = 0 [pid 6115] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6114] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6120] munmap(0x7f0d62800000, 138412032 [pid 6115] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6114] <... futex resumed>) = 0 [pid 6120] <... munmap resumed>) = 0 [pid 6115] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 6114] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6120] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6120] close(5) = 0 [pid 6120] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6116] <... futex resumed>) = 0 [pid 6120] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6116] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6120] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6116] <... futex resumed>) = 0 [pid 6120] fsync(-1 [pid 6116] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6123] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6120] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 6120] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6116] <... futex resumed>) = 0 [pid 6120] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6116] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6120] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6116] <... futex resumed>) = 0 [pid 6120] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6116] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6120] <... openat resumed>) = 5 [pid 6120] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6120] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6116] <... futex resumed>) = 0 [pid 6116] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6120] <... futex resumed>) = 0 [pid 6116] <... futex resumed>) = 1 [pid 6120] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 6116] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6123] <... write resumed>) = 1048576 [pid 6123] munmap(0x7f0d62800000, 138412032) = 0 [pid 6114] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6112] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6123] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6123] ioctl(4, LOOP_SET_FD, 3 [pid 6120] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 6120] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6116] <... futex resumed>) = 0 [pid 6120] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6116] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6120] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6116] <... futex resumed>) = 0 [pid 6120] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 6116] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6120] <... openat resumed>) = 6 [pid 6120] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6116] <... futex resumed>) = 0 [pid 6120] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6116] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6120] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6116] <... futex resumed>) = 0 [pid 6120] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 6116] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6123] <... ioctl resumed>) = 0 [pid 6123] close(3) = 0 [pid 6123] close(4) = 0 [pid 6123] mkdir("./file2", 0777) = 0 [ 112.876068][ T6122] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 112.902799][ T6123] loop0: detected capacity change from 0 to 2048 [pid 6123] mount("/dev/loop0", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 6116] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [ 112.932762][ T6123] NILFS (loop0): broken superblock, retrying with spare superblock (blocksize = 1024) [ 112.992865][ T5838] udevd[5838]: incorrect nilfs2 checksum on /dev/loop0 [pid 6123] <... mount resumed>) = 0 [pid 6123] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY) = 3 [pid 6123] chdir("./file2") = 0 [pid 6123] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6123] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6121] <... futex resumed>) = 0 [pid 6123] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6121] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6123] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6121] <... futex resumed>) = 0 [pid 6123] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 6121] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6123] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 6123] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6121] <... futex resumed>) = 0 [pid 6123] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 6121] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6123] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 6121] <... futex resumed>) = 0 [pid 6123] <... openat resumed>) = 4 [pid 6123] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6121] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6123] <... futex resumed>) = 0 [pid 6121] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6123] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6121] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6123] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6121] <... futex resumed>) = 0 [pid 6123] read(-1, [pid 6121] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6123] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 6123] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6121] <... futex resumed>) = 0 [pid 6123] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6121] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6123] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6121] <... futex resumed>) = 0 [pid 6123] memfd_create("syzkaller", 0 [pid 6121] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6123] <... memfd_create resumed>) = 5 [pid 6123] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 [pid 6111] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 6115] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 6111] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 113.071300][ T6117] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 113.080434][ T6119] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 113.103208][ T6124] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6111] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6115] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6110] close(3) = 0 [pid 6110] close(4) = 0 [pid 6110] close(5) = 0 [pid 6110] close(6) = 0 [pid 6110] close(7) = -1 EBADF (Bad file descriptor) [pid 6110] close(8 [pid 6123] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 6110] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6110] close(9) = -1 EBADF (Bad file descriptor) [pid 6123] <... write resumed>) = 524288 [pid 6110] close(10 [pid 6115] <... futex resumed>) = 0 [pid 6114] close(3 [pid 6110] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6110] close(11) = -1 EBADF (Bad file descriptor) [pid 6110] close(12) = -1 EBADF (Bad file descriptor) [pid 6110] close(13) = -1 EBADF (Bad file descriptor) [pid 6110] close(14) = -1 EBADF (Bad file descriptor) [pid 6110] close(15) = -1 EBADF (Bad file descriptor) [pid 6110] close(16) = -1 EBADF (Bad file descriptor) [pid 6110] close(17) = -1 EBADF (Bad file descriptor) [pid 6110] close(18) = -1 EBADF (Bad file descriptor) [pid 6110] close(19) = -1 EBADF (Bad file descriptor) [pid 6110] close(20) = -1 EBADF (Bad file descriptor) [pid 6110] close(21) = -1 EBADF (Bad file descriptor) [pid 6110] close(22) = -1 EBADF (Bad file descriptor) [pid 6110] close(23) = -1 EBADF (Bad file descriptor) [pid 6110] close(24) = -1 EBADF (Bad file descriptor) [pid 6110] close(25) = -1 EBADF (Bad file descriptor) [pid 6110] close(26) = -1 EBADF (Bad file descriptor) [pid 6110] close(27) = -1 EBADF (Bad file descriptor) [pid 6110] close(28) = -1 EBADF (Bad file descriptor) [pid 6110] close(29) = -1 EBADF (Bad file descriptor) [pid 6110] exit_group(0 [pid 6111] <... futex resumed>) = ? [pid 6110] <... exit_group resumed>) = ? [ 113.104947][ T6118] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6111] +++ exited with 0 +++ [pid 6110] +++ exited with 0 +++ [pid 6115] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6114] <... close resumed>) = 0 [pid 5835] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=35, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 5835] restart_syscall(<... resuming interrupted clone ...> [pid 6123] munmap(0x7f0d62800000, 138412032) = 0 [pid 5835] <... restart_syscall resumed>) = 0 [pid 5835] umount2("./15", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5835] openat(AT_FDCWD, "./15", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5835] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 5835] getdents64(3, 0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 5835] umount2("./15/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5835] newfstatat(AT_FDCWD, "./15/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5835] unlink("./15/cgroup") = 0 [pid 5835] umount2("./15/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5835] newfstatat(AT_FDCWD, "./15/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5835] unlink("./15/cgroup.cpu") = 0 [pid 5835] umount2("./15/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5835] newfstatat(AT_FDCWD, "./15/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6123] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5835] unlink("./15/cgroup.net") = 0 [pid 5835] umount2("./15/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5835] newfstatat(AT_FDCWD, "./15/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5835] unlink("./15/binderfs") = 0 [pid 5835] umount2("./15/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6114] close(4 [pid 6123] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6123] close(5) = 0 [pid 6114] <... close resumed>) = 0 [pid 6123] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6121] <... futex resumed>) = 0 [pid 6123] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6121] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6123] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6121] <... futex resumed>) = 0 [pid 6123] fsync(-1 [pid 6121] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6123] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 6123] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6121] <... futex resumed>) = 0 [pid 6123] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6121] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6123] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6121] <... futex resumed>) = 0 [pid 6123] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6121] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6123] <... openat resumed>) = 5 [pid 6123] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6121] <... futex resumed>) = 0 [pid 6123] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 6121] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6114] close(5 [pid 6113] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 6114] <... close resumed>) = 0 [pid 6113] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6112] close(3 [pid 6114] close(6 [pid 6113] <... futex resumed>) = 0 [pid 6112] <... close resumed>) = 0 [pid 6114] <... close resumed>) = 0 [pid 6113] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6112] close(4 [pid 6114] close(7 [pid 6112] <... close resumed>) = 0 [pid 6114] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6112] close(5 [pid 6114] close(8 [pid 6112] <... close resumed>) = 0 [pid 6114] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6112] close(6 [pid 6114] close(9 [pid 6112] <... close resumed>) = 0 [pid 6121] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6114] <... close resumed>) = -1 EBADF (Bad file descriptor) [ 113.166178][ T6117] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 113.188958][ T6122] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 113.202908][ T6117] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6120] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 6114] close(10 [pid 6112] close(7 [pid 6123] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 6123] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6121] <... futex resumed>) = 0 [pid 6123] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6121] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6123] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6121] <... futex resumed>) = 0 [pid 6123] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 6121] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6120] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6123] <... openat resumed>) = 6 [pid 6114] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6112] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6123] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6120] <... futex resumed>) = 0 [pid 6116] close(3 [pid 6114] close(11 [pid 6112] close(8 [pid 6123] <... futex resumed>) = 1 [pid 6121] <... futex resumed>) = 0 [pid 6120] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6116] <... close resumed>) = 0 [pid 6114] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6112] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6123] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 6121] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6116] close(4 [pid 6114] close(12 [pid 6112] close(9 [pid 6121] <... futex resumed>) = 0 [pid 6116] <... close resumed>) = 0 [pid 6114] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6116] close(5 [pid 6114] close(13 [pid 6112] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6116] <... close resumed>) = 0 [pid 6114] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6112] close(10 [pid 6116] close(6 [pid 6114] close(14 [pid 6112] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6116] <... close resumed>) = 0 [pid 6114] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6112] close(11 [pid 6116] close(7 [pid 6114] close(15 [pid 6112] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6116] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6114] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6112] close(12 [pid 6116] close(8 [pid 6114] close(16 [pid 6112] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6116] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6114] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6112] close(13 [pid 6116] close(9 [pid 6114] close(17 [pid 6112] <... close resumed>) = -1 EBADF (Bad file descriptor) [ 113.207678][ T6124] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 113.215534][ T6117] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 113.235892][ T6117] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 113.246865][ T6117] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6116] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6114] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6112] close(14 [pid 6116] close(10 [pid 6114] close(18 [pid 6112] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6116] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6114] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6112] close(15 [pid 6116] close(11 [pid 6114] close(19 [pid 6112] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6116] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6114] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6112] close(16 [pid 6116] close(12 [pid 6114] close(20 [pid 6116] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6112] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6116] close(13 [pid 6114] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6112] close(17 [pid 6116] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6114] close(21 [pid 6112] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6116] close(14 [pid 6114] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6112] close(18 [pid 6116] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6114] close(22 [pid 6112] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6116] close(15 [pid 6114] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6112] close(19 [pid 6116] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6114] close(23 [pid 6112] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6116] close(16 [pid 6114] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6112] close(20 [pid 6116] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6114] close(24 [pid 6112] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6116] close(17 [pid 6114] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6112] close(21 [pid 6114] close(25 [pid 6112] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6116] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6114] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6112] close(22 [pid 6121] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6116] close(18 [pid 6114] close(26 [pid 6116] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6114] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6112] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6114] close(27 [pid 6112] close(23 [pid 6114] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6112] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6114] close(28 [pid 6112] close(24 [pid 6116] close(19 [pid 6114] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6112] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6116] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6114] close(29 [pid 6116] close(20 [pid 6112] close(25 [pid 6116] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6114] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6116] close(21 [pid 6114] exit_group(0 [pid 6112] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6116] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6114] <... exit_group resumed>) = ? [pid 6112] close(26 [pid 6116] close(22 [pid 6115] <... futex resumed>) = ? [pid 6112] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6116] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6112] close(27 [pid 6116] close(23 [pid 6112] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6116] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6112] close(28 [pid 6116] close(24 [pid 6112] <... close resumed>) = -1 EBADF (Bad file descriptor) [ 113.259914][ T6117] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 113.271657][ T6117] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 113.282935][ T6117] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 113.294742][ T6117] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6116] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6112] close(29 [pid 6116] close(25 [pid 6112] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6116] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6112] exit_group(0 [pid 6116] close(26 [pid 6112] <... exit_group resumed>) = ? [pid 6116] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6116] close(27) = -1 EBADF (Bad file descriptor) [pid 6116] close(28) = -1 EBADF (Bad file descriptor) [pid 6116] close(29) = -1 EBADF (Bad file descriptor) [pid 6116] exit_group(0 [pid 6120] <... futex resumed>) = ? [pid 6116] <... exit_group resumed>) = ? [pid 6120] +++ exited with 0 +++ [pid 6116] +++ exited with 0 +++ [pid 6113] <... futex resumed>) = ? [pid 5837] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=38, si_uid=0, si_status=0, si_utime=0, si_stime=22 /* 0.22 s */} --- [pid 5837] restart_syscall(<... resuming interrupted clone ...> [pid 6115] +++ exited with 0 +++ [pid 6114] +++ exited with 0 +++ [pid 5836] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=38, si_uid=0, si_status=0, si_utime=0, si_stime=21 /* 0.21 s */} --- [pid 5836] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 6113] +++ exited with 0 +++ [pid 6112] +++ exited with 0 +++ [pid 5836] umount2("./15", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5837] <... restart_syscall resumed>) = 0 [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5834] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=41, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 5836] openat(AT_FDCWD, "./15", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5834] restart_syscall(<... resuming interrupted clone ...> [pid 5836] <... openat resumed>) = 3 [pid 5837] umount2("./16", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5836] newfstatat(3, "", [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5836] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 5837] openat(AT_FDCWD, "./16", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5836] getdents64(3, [pid 5837] <... openat resumed>) = 3 [pid 5836] <... getdents64 resumed>0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 5837] newfstatat(3, "", [pid 5836] umount2("./15/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5837] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5837] getdents64(3, [pid 5836] newfstatat(AT_FDCWD, "./15/cgroup", [pid 5837] <... getdents64 resumed>0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 5836] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5834] <... restart_syscall resumed>) = 0 [pid 5837] umount2("./16/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5836] unlink("./15/cgroup" [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5836] <... unlink resumed>) = 0 [pid 5837] newfstatat(AT_FDCWD, "./16/cgroup", [pid 5836] umount2("./15/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5834] umount2("./16", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5837] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 113.306624][ T6117] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5837] unlink("./16/cgroup" [pid 5836] newfstatat(AT_FDCWD, "./15/cgroup.cpu", [pid 5834] openat(AT_FDCWD, "./16", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5837] <... unlink resumed>) = 0 [pid 5836] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5834] <... openat resumed>) = 3 [pid 5837] umount2("./16/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5836] unlink("./15/cgroup.cpu" [pid 5834] newfstatat(3, "", [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5836] <... unlink resumed>) = 0 [pid 5834] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 5837] newfstatat(AT_FDCWD, "./16/cgroup.cpu", [pid 5834] getdents64(3, [pid 5837] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5836] umount2("./15/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5834] <... getdents64 resumed>0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 5837] unlink("./16/cgroup.cpu" [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5834] umount2("./16/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6121] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5837] <... unlink resumed>) = 0 [pid 5836] newfstatat(AT_FDCWD, "./15/cgroup.net", [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5837] umount2("./16/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5836] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5834] newfstatat(AT_FDCWD, "./16/cgroup", [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5836] unlink("./15/cgroup.net" [pid 5834] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5837] newfstatat(AT_FDCWD, "./16/cgroup.net", [pid 5836] <... unlink resumed>) = 0 [pid 5834] unlink("./16/cgroup" [pid 5837] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5836] umount2("./15/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5834] <... unlink resumed>) = 0 [pid 5837] unlink("./16/cgroup.net" [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5834] umount2("./16/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5837] <... unlink resumed>) = 0 [pid 5836] newfstatat(AT_FDCWD, "./15/binderfs", [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5837] umount2("./16/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5836] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5834] newfstatat(AT_FDCWD, "./16/cgroup.cpu", [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5837] newfstatat(AT_FDCWD, "./16/binderfs", [pid 5836] unlink("./15/binderfs" [pid 5834] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5837] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5837] unlink("./16/binderfs" [pid 5836] <... unlink resumed>) = 0 [pid 5834] unlink("./16/cgroup.cpu" [pid 5837] <... unlink resumed>) = 0 [pid 5834] <... unlink resumed>) = 0 [pid 5836] umount2("./15/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5837] umount2("./16/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5834] umount2("./16/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5834] newfstatat(AT_FDCWD, "./16/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5834] unlink("./16/cgroup.net") = 0 [pid 5834] umount2("./16/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5834] newfstatat(AT_FDCWD, "./16/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [ 113.349885][ T6117] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 113.369793][ T6117] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 113.381144][ T6117] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5834] unlink("./16/binderfs") = 0 [ 113.393307][ T6119] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 113.404970][ T6122] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 113.416172][ T6119] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 113.416294][ T6118] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 113.427826][ T6122] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 113.450058][ T6118] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 113.464288][ T6117] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 113.465069][ T6118] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 113.476600][ T6119] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 113.487752][ T6117] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 113.513418][ T6122] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 113.526118][ T6119] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 113.534115][ T6124] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5834] umount2("./16/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6123] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 6123] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 113.538744][ T5835] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 113.549083][ T6122] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 113.560745][ T6119] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 113.571098][ T6118] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6123] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6121] close(3) = 0 [pid 6121] close(4) = 0 [pid 6121] close(5) = 0 [pid 6121] close(6) = 0 [pid 6121] close(7) = -1 EBADF (Bad file descriptor) [pid 6121] close(8) = -1 EBADF (Bad file descriptor) [pid 6121] close(9) = -1 EBADF (Bad file descriptor) [pid 6121] close(10) = -1 EBADF (Bad file descriptor) [pid 6121] close(11) = -1 EBADF (Bad file descriptor) [pid 6121] close(12) = -1 EBADF (Bad file descriptor) [pid 6121] close(13) = -1 EBADF (Bad file descriptor) [pid 6121] close(14) = -1 EBADF (Bad file descriptor) [pid 6121] close(15) = -1 EBADF (Bad file descriptor) [pid 6121] close(16) = -1 EBADF (Bad file descriptor) [pid 6121] close(17) = -1 EBADF (Bad file descriptor) [pid 6121] close(18) = -1 EBADF (Bad file descriptor) [pid 6121] close(19) = -1 EBADF (Bad file descriptor) [pid 6121] close(20) = -1 EBADF (Bad file descriptor) [pid 6121] close(21) = -1 EBADF (Bad file descriptor) [pid 6121] close(22) = -1 EBADF (Bad file descriptor) [pid 6121] close(23) = -1 EBADF (Bad file descriptor) [pid 6121] close(24) = -1 EBADF (Bad file descriptor) [pid 6121] close(25) = -1 EBADF (Bad file descriptor) [ 113.595232][ T5835] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 113.596199][ T6118] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 113.602944][ T6122] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 113.608528][ T6119] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 113.629332][ T6118] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6121] close(26) = -1 EBADF (Bad file descriptor) [ 113.640128][ T5835] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 113.652639][ T6119] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 113.662112][ T6122] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 113.672601][ T6118] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6121] close(27) = -1 EBADF (Bad file descriptor) [ 113.684279][ T5835] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 113.696035][ T6118] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 113.717365][ T6122] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 113.717653][ T6119] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 113.740018][ T6122] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 113.740557][ T6118] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 113.751841][ T6122] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 113.763286][ T6118] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 113.773225][ T6119] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 113.784076][ T6118] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 113.797072][ T6122] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 113.809173][ T6118] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 113.819718][ T6119] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6121] close(28) = -1 EBADF (Bad file descriptor) [ 113.831444][ T6118] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 113.843168][ T6122] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 113.864306][ T6118] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 113.875471][ T5835] NILFS (loop3): disposed unprocessed dirty file(s) when stopping log writer [ 113.875575][ T6119] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6121] close(29) = -1 EBADF (Bad file descriptor) [ 113.876672][ T6122] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 113.886524][ T6118] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 113.897225][ T6119] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 113.928935][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6121] exit_group(0 [pid 5835] <... umount2 resumed>) = 0 [ 113.932283][ T6122] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 113.954108][ T6119] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 113.955099][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 113.966105][ T6122] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 113.977626][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6121] <... exit_group resumed>) = ? [pid 5835] umount2("./15/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6123] <... futex resumed>) = ? [pid 6123] +++ exited with 0 +++ [ 113.987276][ T6119] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 114.010861][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 114.014916][ T6119] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 114.022227][ T6122] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6121] +++ exited with 0 +++ [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5835] newfstatat(AT_FDCWD, "./15/file2", [pid 5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=42, si_uid=0, si_status=0, si_utime=0, si_stime=21 /* 0.21 s */} --- [pid 5835] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [ 114.036030][ T5836] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 114.045112][ T5834] NILFS (loop1): disposed unprocessed dirty file(s) when stopping log writer [ 114.057386][ T5836] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 114.067297][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 114.079696][ T5836] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5835] umount2("./15/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5833] umount2("./16", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5835] openat(AT_FDCWD, "./15/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5833] openat(AT_FDCWD, "./16", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5835] <... openat resumed>) = 4 [pid 5833] <... openat resumed>) = 3 [pid 5835] newfstatat(4, "", [pid 5833] newfstatat(3, "", [pid 5835] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 5833] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 5835] getdents64(4, [pid 5833] getdents64(3, [pid 5835] <... getdents64 resumed>0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 5833] <... getdents64 resumed>0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 5835] getdents64(4, [pid 5833] umount2("./16/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5835] <... getdents64 resumed>0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5835] close(4 [pid 5833] newfstatat(AT_FDCWD, "./16/cgroup", [pid 5835] <... close resumed>) = 0 [pid 5835] rmdir("./15/file2" [pid 5833] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5835] <... rmdir resumed>) = 0 [pid 5833] unlink("./16/cgroup" [pid 5835] getdents64(3, 0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 5833] <... unlink resumed>) = 0 [pid 5835] close(3) = 0 [pid 5834] <... umount2 resumed>) = 0 [pid 5833] umount2("./16/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5835] rmdir("./15" [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5834] umount2("./16/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5835] <... rmdir resumed>) = 0 [pid 5833] newfstatat(AT_FDCWD, "./16/cgroup.cpu", [pid 5835] mkdir("./16", 0777 [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5833] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5834] newfstatat(AT_FDCWD, "./16/file2", [pid 5835] <... mkdir resumed>) = 0 [pid 5833] unlink("./16/cgroup.cpu" [pid 5835] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5834] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] <... unlink resumed>) = 0 [pid 5834] umount2("./16/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5835] <... openat resumed>) = 3 [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5833] umount2("./16/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5834] openat(AT_FDCWD, "./16/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5835] ioctl(3, LOOP_CLR_FD [pid 5833] newfstatat(AT_FDCWD, "./16/cgroup.net", [pid 5834] <... openat resumed>) = 4 [pid 5834] newfstatat(4, "", [pid 5833] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5835] <... ioctl resumed>) = 0 [pid 5833] unlink("./16/cgroup.net" [pid 5835] close(3 [pid 5834] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 5834] getdents64(4, [pid 5833] <... unlink resumed>) = 0 [pid 5834] <... getdents64 resumed>0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 5834] getdents64(4, 0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 5834] close(4) = 0 [pid 5834] rmdir("./16/file2") = 0 [pid 5834] getdents64(3, 0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 5834] close(3) = 0 [pid 5834] rmdir("./16") = 0 [pid 5834] mkdir("./17", 0777 [pid 5833] umount2("./16/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5834] <... mkdir resumed>) = 0 [pid 5834] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5834] ioctl(3, LOOP_CLR_FD) = 0 [pid 5834] close(3 [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5835] <... close resumed>) = 0 [pid 5833] newfstatat(AT_FDCWD, "./16/binderfs", [pid 5835] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5834] <... close resumed>) = 0 [pid 5833] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./16/binderfs"./strace-static-x86_64: Process 6125 attached ) = 0 [ 114.103133][ T5836] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 114.105152][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 114.115551][ T5836] NILFS (loop2): disposed unprocessed dirty file(s) when stopping log writer [pid 5834] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5835] <... clone resumed>, child_tidptr=0x55555fa3c690) = 37 [pid 5833] umount2("./16/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6125] set_robust_list(0x55555fa3c6a0, 24 [pid 5836] <... umount2 resumed>) = 0 ./strace-static-x86_64: Process 6126 attached [pid 6125] <... set_robust_list resumed>) = 0 [pid 5836] umount2("./15/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6126] set_robust_list(0x55555fa3c6a0, 24 [pid 5834] <... clone resumed>, child_tidptr=0x55555fa3c690) = 43 [pid 6126] <... set_robust_list resumed>) = 0 [pid 6125] chdir("./16" [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6126] chdir("./17") = 0 [pid 6126] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6126] setpgid(0, 0) = 0 [pid 6126] symlink("/syzcgroup/unified/syz1", "./cgroup") = 0 [pid 5836] newfstatat(AT_FDCWD, "./15/file2", [pid 6125] <... chdir resumed>) = 0 [pid 5836] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6125] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5836] umount2("./15/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6126] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu") = 0 [pid 6126] symlink("/syzcgroup/net/syz1", "./cgroup.net") = 0 [pid 6125] <... prctl resumed>) = 0 [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6126] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [ 114.187784][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 114.197648][ T6124] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 114.212133][ T6124] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 114.223675][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5836] openat(AT_FDCWD, "./15/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6125] setpgid(0, 0 [pid 5836] <... openat resumed>) = 4 [pid 6126] write(3, "1000", 4) = 4 [pid 6126] close(3 [pid 6125] <... setpgid resumed>) = 0 [pid 5836] newfstatat(4, "", [pid 6126] <... close resumed>) = 0 [pid 6126] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 6126] write(1, "executing program\n", 18 [pid 5836] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 6126] <... write resumed>) = 18 [pid 6126] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6126] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, [pid 6125] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5836] getdents64(4, [pid 6126] <... rt_sigaction resumed>NULL, 8) = 0 [pid 6126] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6126] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0d6adff000 [pid 6126] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6126] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5836] <... getdents64 resumed>0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 6126] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6126] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0} => {parent_tid=[44]}, 88) = 44 [pid 6126] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6126] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6126] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 6127 attached [pid 6125] <... symlink resumed>) = 0 [pid 5836] getdents64(4, [pid 6127] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 6125] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 6127] <... rseq resumed>) = 0 [pid 5836] <... getdents64 resumed>0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 6127] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 5836] close(4 [pid 6127] <... set_robust_list resumed>) = 0 [pid 6127] rt_sigprocmask(SIG_SETMASK, [], [pid 6125] <... symlink resumed>) = 0 [pid 5836] <... close resumed>) = 0 [pid 6127] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5836] rmdir("./15/file2" [pid 6127] memfd_create("syzkaller", 0) = 3 [pid 6125] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 5836] <... rmdir resumed>) = 0 [pid 6127] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5836] getdents64(3, [pid 6127] <... mmap resumed>) = 0x7f0d62800000 [pid 6125] <... symlink resumed>) = 0 [pid 5836] <... getdents64 resumed>0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 5836] close(3) = 0 [pid 6125] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5836] rmdir("./15") = 0 [pid 5836] mkdir("./16", 0777) = 0 [pid 5836] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [ 114.249348][ T5837] NILFS (loop4): disposed unprocessed dirty file(s) when stopping log writer [pid 5836] ioctl(3, LOOP_CLR_FD [pid 6125] <... openat resumed>) = 3 [pid 6127] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5836] <... ioctl resumed>) = 0 [pid 5836] close(3) = 0 [pid 6125] write(3, "1000", 4 [pid 5836] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6125] <... write resumed>) = 4 [pid 6125] close(3 [pid 5837] <... umount2 resumed>) = 0 [pid 6125] <... close resumed>) = 0 [pid 5837] umount2("./16/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6125] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 ./strace-static-x86_64: Process 6128 attached [pid 6125] write(1, "executing program\n", 18 [pid 6128] set_robust_list(0x55555fa3c6a0, 24 [pid 6125] <... write resumed>) = 18 [pid 5836] <... clone resumed>, child_tidptr=0x55555fa3c690) = 40 [pid 6128] <... set_robust_list resumed>) = 0 [pid 6125] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6128] chdir("./16" [pid 6125] <... futex resumed>) = 0 [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6125] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, [pid 5837] newfstatat(AT_FDCWD, "./16/file2", [pid 6125] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5837] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6125] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5837] umount2("./16/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6125] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6125] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0d6adff000 [pid 6128] <... chdir resumed>) = 0 [pid 6125] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE [pid 5837] openat(AT_FDCWD, "./16/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6128] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6125] <... mprotect resumed>) = 0 [pid 5837] <... openat resumed>) = 4 [pid 6128] <... prctl resumed>) = 0 [pid 6125] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6128] setpgid(0, 0 [pid 6125] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5837] newfstatat(4, "", [pid 6128] <... setpgid resumed>) = 0 [pid 5837] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 6128] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 5837] getdents64(4, [pid 6128] <... symlink resumed>) = 0 [pid 6125] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0} [pid 5837] <... getdents64 resumed>0x55555fa45770 /* 2 entries */, 32768) = 48 [ 114.300210][ T6124] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 ./strace-static-x86_64: Process 6129 attached [pid 6128] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 6127] <... write resumed>) = 1048576 [pid 5837] getdents64(4, [pid 6128] <... symlink resumed>) = 0 [pid 5837] <... getdents64 resumed>0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 6129] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 6125] <... clone3 resumed> => {parent_tid=[38]}, 88) = 38 [pid 5837] close(4 [pid 6129] <... rseq resumed>) = 0 [pid 6128] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 6125] rt_sigprocmask(SIG_SETMASK, [], [pid 5837] <... close resumed>) = 0 [pid 6129] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 6128] <... symlink resumed>) = 0 [pid 6127] munmap(0x7f0d62800000, 138412032 [pid 6125] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5837] rmdir("./16/file2" [pid 6129] <... set_robust_list resumed>) = 0 [pid 6128] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6127] <... munmap resumed>) = 0 [pid 6125] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] <... rmdir resumed>) = 0 [pid 6129] rt_sigprocmask(SIG_SETMASK, [], [pid 6128] <... openat resumed>) = 3 [pid 6127] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6125] <... futex resumed>) = 0 [pid 5837] getdents64(3, [pid 6129] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6128] write(3, "1000", 4 [pid 6127] <... openat resumed>) = 4 [pid 6125] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5837] <... getdents64 resumed>0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 6129] memfd_create("syzkaller", 0 [pid 6128] <... write resumed>) = 4 [pid 6127] ioctl(4, LOOP_SET_FD, 3 [pid 5837] close(3 [pid 6129] <... memfd_create resumed>) = 3 [pid 6128] close(3 [pid 5837] <... close resumed>) = 0 [ 114.341005][ T6124] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 114.364055][ T6124] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 114.365922][ T6127] loop1: detected capacity change from 0 to 2048 [pid 6129] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6128] <... close resumed>) = 0 [pid 6127] <... ioctl resumed>) = 0 [pid 5837] rmdir("./16" [pid 6129] <... mmap resumed>) = 0x7f0d62800000 [pid 6128] symlink("/dev/binderfs", "./binderfs" [pid 6127] close(3 [pid 5837] <... rmdir resumed>) = 0 [pid 6127] <... close resumed>) = 0 [pid 6127] close(4executing program [pid 6129] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6128] <... symlink resumed>) = 0 [pid 6127] <... close resumed>) = 0 [pid 5837] mkdir("./17", 0777 [pid 6127] mkdir("./file2", 0777 [pid 6128] write(1, "executing program\n", 18 [pid 6127] <... mkdir resumed>) = 0 [pid 5837] <... mkdir resumed>) = 0 [pid 6127] mount("/dev/loop1", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 6128] <... write resumed>) = 18 [pid 5837] openat(AT_FDCWD, "/dev/loop4", O_RDWR [ 114.382781][ T6124] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 114.405604][ T6127] NILFS (loop1): broken superblock, retrying with spare superblock (blocksize = 1024) [ 114.410295][ T6124] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6128] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6129] <... write resumed>) = 1048576 [pid 6128] <... futex resumed>) = 0 [pid 6127] <... mount resumed>) = 0 [pid 5837] <... openat resumed>) = 3 [pid 6129] munmap(0x7f0d62800000, 138412032) = 0 [pid 6129] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6128] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, [pid 6127] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5837] ioctl(3, LOOP_CLR_FD [pid 6129] <... openat resumed>) = 4 [pid 6129] ioctl(4, LOOP_SET_FD, 3 [pid 6128] <... rt_sigaction resumed>NULL, 8) = 0 [pid 6127] <... openat resumed>) = 3 [pid 5837] <... ioctl resumed>) = 0 [pid 6129] <... ioctl resumed>) = 0 [pid 6128] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 6127] chdir("./file2" [ 114.432948][ T6130] NILFS (loop1): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 114.435032][ T6124] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 114.455761][ T6124] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 114.460841][ T6129] loop3: detected capacity change from 0 to 2048 [ 114.473459][ T6124] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5837] close(3 [pid 6129] close(3 [pid 6128] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6127] <... chdir resumed>) = 0 [pid 6128] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6127] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6129] <... close resumed>) = 0 [pid 6128] <... mmap resumed>) = 0x7f0d6adff000 [pid 6127] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6129] close(4 [pid 6128] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE [pid 6127] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6129] <... close resumed>) = 0 [pid 6128] <... mprotect resumed>) = 0 [pid 6127] <... futex resumed>) = 1 [pid 6126] <... futex resumed>) = 0 [pid 6129] mkdir("./file2", 0777 [pid 6128] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6127] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6126] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6129] <... mkdir resumed>) = 0 [pid 6128] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6127] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6126] <... futex resumed>) = 0 [pid 6129] mount("/dev/loop3", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 6128] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0} [pid 6127] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 6126] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 6131 attached [pid 6127] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 6131] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 6128] <... clone3 resumed> => {parent_tid=[41]}, 88) = 41 [pid 6127] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6131] <... rseq resumed>) = 0 [pid 6128] rt_sigprocmask(SIG_SETMASK, [], [pid 6127] <... futex resumed>) = 1 [pid 6126] <... futex resumed>) = 0 [pid 6131] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 6128] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6127] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6126] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6131] <... set_robust_list resumed>) = 0 [pid 6128] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6127] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6126] <... futex resumed>) = 0 [pid 6131] rt_sigprocmask(SIG_SETMASK, [], [pid 6128] <... futex resumed>) = 0 [pid 6127] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 6126] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6131] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6128] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6127] <... openat resumed>) = 4 [pid 6131] memfd_create("syzkaller", 0 [pid 6127] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6131] <... memfd_create resumed>) = 3 [pid 6127] <... futex resumed>) = 1 [pid 6126] <... futex resumed>) = 0 [pid 5837] <... close resumed>) = 0 [pid 6131] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6127] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6126] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6131] <... mmap resumed>) = 0x7f0d62800000 [pid 6127] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6126] <... futex resumed>) = 0 [pid 6127] read(-1, [pid 6126] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6131] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6127] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 6127] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6126] <... futex resumed>) = 0 [pid 6127] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6126] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6127] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6126] <... futex resumed>) = 0 [pid 6127] memfd_create("syzkaller", 0) = 5 [pid 6126] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5837] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [ 114.484914][ T6124] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 114.499795][ T6124] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 114.520039][ T6129] NILFS (loop3): broken superblock, retrying with spare superblock (blocksize = 1024) [pid 6127] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 [pid 6127] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288./strace-static-x86_64: Process 6132 attached ) = 524288 [pid 6132] set_robust_list(0x55555fa3c6a0, 24 [pid 6131] <... write resumed>) = 1048576 [pid 5837] <... clone resumed>, child_tidptr=0x55555fa3c690) = 40 [pid 6127] munmap(0x7f0d62800000, 138412032 [pid 6131] munmap(0x7f0d62800000, 138412032 [pid 6127] <... munmap resumed>) = 0 [pid 6131] <... munmap resumed>) = 0 [pid 6127] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6131] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 6127] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6131] <... openat resumed>) = 4 [pid 6127] close(5 [ 114.542306][ T6124] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 114.563458][ T6124] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 114.568012][ T6133] NILFS (loop3): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 114.584624][ T6131] loop2: detected capacity change from 0 to 2048 [pid 6131] ioctl(4, LOOP_SET_FD, 3 [pid 6127] <... close resumed>) = 0 [pid 6132] <... set_robust_list resumed>) = 0 [pid 6131] <... ioctl resumed>) = 0 [pid 6129] <... mount resumed>) = 0 [pid 6132] chdir("./17" [pid 6129] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 6132] <... chdir resumed>) = 0 [pid 6129] <... openat resumed>) = 3 [pid 6132] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6129] chdir("./file2" [pid 6132] <... prctl resumed>) = 0 [pid 6129] <... chdir resumed>) = 0 [pid 6132] setpgid(0, 0 [pid 6129] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6132] <... setpgid resumed>) = 0 [pid 6129] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6132] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 6131] close(3 [pid 6129] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6127] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6126] <... futex resumed>) = 0 [pid 6127] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6126] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6127] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6127] fsync(-1 [pid 6126] <... futex resumed>) = 0 [pid 6127] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 6127] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6126] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6127] <... futex resumed>) = 0 [pid 6126] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6127] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6126] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6129] <... futex resumed>) = 1 [pid 6127] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6126] <... futex resumed>) = 0 [pid 6125] <... futex resumed>) = 0 [pid 6129] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6125] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6127] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6126] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6132] <... symlink resumed>) = 0 [pid 6131] <... close resumed>) = 0 [pid 6129] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6125] <... futex resumed>) = 0 [pid 6129] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 6132] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 6131] close(4 [pid 6129] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 6125] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6132] <... symlink resumed>) = 0 [pid 6131] <... close resumed>) = 0 [pid 6129] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6125] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [ 114.606506][ T6124] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 114.637636][ T5833] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6132] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 6131] mkdir("./file2", 0777 [pid 6129] <... futex resumed>) = 0 [pid 6127] <... openat resumed>) = 5 [pid 6125] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6131] <... mkdir resumed>) = 0 [pid 6129] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 6125] <... futex resumed>) = 0 [pid 6127] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6131] mount("/dev/loop2", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 6127] <... futex resumed>) = 1 [pid 6125] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6129] <... openat resumed>) = 4 [pid 6127] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6126] <... futex resumed>) = 0 [pid 6126] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6129] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6127] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6126] <... futex resumed>) = 0 [pid 6126] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6132] <... symlink resumed>) = 0 [pid 6129] <... futex resumed>) = 1 [pid 6127] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 6125] <... futex resumed>) = 0 [pid 6132] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6129] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 6125] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6129] read(-1, [pid 6125] <... futex resumed>) = 0 [pid 6132] <... openat resumed>) = 3 [pid 6129] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 6125] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6132] write(3, "1000", 4 [pid 6129] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6125] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6132] <... write resumed>) = 4 [pid 6129] <... futex resumed>) = 0 [pid 6125] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6132] close(3 [pid 6129] memfd_create("syzkaller", 0 [pid 6125] <... futex resumed>) = 0 [pid 6132] <... close resumed>) = 0 [pid 6132] symlink("/dev/binderfs", "./binderfs" [pid 6129] <... memfd_create resumed>) = 5 [ 114.651291][ T5833] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 114.651713][ T6131] NILFS (loop2): broken superblock, retrying with spare superblock (blocksize = 1024) [ 114.664960][ T5833] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 114.688828][ T6130] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6125] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}executing program [pid 6132] <... symlink resumed>) = 0 [pid 6129] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6132] write(1, "executing program\n", 18) = 18 [pid 6129] <... mmap resumed>) = 0x7f0d62800000 [pid 6127] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 6127] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6126] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6126] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6126] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6127] <... futex resumed>) = 1 [pid 6126] <... futex resumed>) = 0 [pid 6132] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6126] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=49000000} [pid 6132] <... futex resumed>) = 0 [pid 6129] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 6127] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 6129] <... write resumed>) = 524288 [pid 6132] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, [pid 6129] munmap(0x7f0d62800000, 138412032 [pid 6132] <... rt_sigaction resumed>NULL, 8) = 0 [pid 6127] <... openat resumed>) = 6 [pid 6127] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6132] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 6129] <... munmap resumed>) = 0 [pid 6127] <... futex resumed>) = 1 [pid 6126] <... futex resumed>) = 0 [pid 6132] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6129] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6126] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6132] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6129] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6127] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 6126] <... futex resumed>) = 0 [pid 6132] <... mmap resumed>) = 0x7f0d6adff000 [pid 6131] <... mount resumed>) = 0 [pid 6126] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6131] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY) = 3 [pid 6131] chdir("./file2") = 0 [pid 6131] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6131] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6128] <... futex resumed>) = 0 [pid 6131] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6128] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6131] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6128] <... futex resumed>) = 0 [pid 6131] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 6128] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6131] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 6131] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6128] <... futex resumed>) = 0 [pid 6131] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6128] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6131] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6128] <... futex resumed>) = 0 [pid 6131] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 6128] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6131] <... openat resumed>) = 4 [pid 6131] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6128] <... futex resumed>) = 0 [pid 6131] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6128] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6131] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6128] <... futex resumed>) = 0 [pid 6131] read(-1, [pid 6128] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6131] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 6131] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6128] <... futex resumed>) = 0 [pid 6131] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6128] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6132] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE [pid 6131] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6129] close(5 [pid 6128] <... futex resumed>) = 0 [pid 6131] memfd_create("syzkaller", 0 [pid 6128] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6131] <... memfd_create resumed>) = 5 [pid 6131] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 [pid 6132] <... mprotect resumed>) = 0 [pid 6129] <... close resumed>) = 0 [pid 6132] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6129] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6132] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0} [pid 6129] <... futex resumed>) = 1 [pid 6125] <... futex resumed>) = 0 [ 114.690794][ T5833] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 114.717185][ T5833] NILFS (loop0): disposed unprocessed dirty file(s) when stopping log writer [ 114.722931][ T6134] NILFS (loop2): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6131] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288./strace-static-x86_64: Process 6135 attached ) = 524288 [pid 6129] fsync(-1 [pid 6125] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6129] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 6131] munmap(0x7f0d62800000, 138412032) = 0 [pid 6135] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 6132] <... clone3 resumed> => {parent_tid=[41]}, 88) = 41 [pid 6129] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6126] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6125] <... futex resumed>) = 0 [pid 5833] <... umount2 resumed>) = 0 [pid 6135] <... rseq resumed>) = 0 [pid 6132] rt_sigprocmask(SIG_SETMASK, [], [pid 6129] <... futex resumed>) = 0 [pid 6125] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5833] umount2("./16/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6135] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 6132] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6129] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6125] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6135] <... set_robust_list resumed>) = 0 [pid 6132] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6125] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5833] newfstatat(AT_FDCWD, "./16/file2", [pid 6135] rt_sigprocmask(SIG_SETMASK, [], [pid 6132] <... futex resumed>) = 0 [pid 6129] <... futex resumed>) = 0 [pid 6125] <... futex resumed>) = 1 [pid 6135] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6129] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6125] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5833] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6132] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6131] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 6129] <... openat resumed>) = 5 [pid 5833] umount2("./16/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6135] memfd_create("syzkaller", 0 [pid 6129] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6125] <... futex resumed>) = 0 [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6129] <... futex resumed>) = 1 [pid 6125] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5833] openat(AT_FDCWD, "./16/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6129] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 6125] <... futex resumed>) = 0 [pid 6131] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6125] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5833] <... openat resumed>) = 4 [pid 6131] close(5 [pid 5833] newfstatat(4, "", [pid 6135] <... memfd_create resumed>) = 3 [pid 6131] <... close resumed>) = 0 [pid 5833] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 6135] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5833] getdents64(4, [pid 6135] <... mmap resumed>) = 0x7f0d62800000 [pid 6131] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6129] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 5833] <... getdents64 resumed>0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 6129] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5833] getdents64(4, [pid 6129] <... futex resumed>) = 1 [pid 6125] <... futex resumed>) = 0 [pid 5833] <... getdents64 resumed>0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 6129] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6125] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5833] close(4 [pid 6129] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6125] <... futex resumed>) = 0 [pid 6129] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 6125] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5833] <... close resumed>) = 0 [pid 6131] <... futex resumed>) = 1 [pid 5833] rmdir("./16/file2" [pid 6131] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5833] <... rmdir resumed>) = 0 [pid 6129] <... openat resumed>) = 6 [pid 5833] getdents64(3, [pid 6129] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5833] <... getdents64 resumed>0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 6129] <... futex resumed>) = 1 [pid 6125] <... futex resumed>) = 0 [pid 5833] close(3 [pid 6129] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6128] <... futex resumed>) = 0 [pid 6125] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6135] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6129] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6128] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6125] <... futex resumed>) = 0 [pid 5833] <... close resumed>) = 0 [pid 6131] <... futex resumed>) = 0 [pid 6129] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 6128] <... futex resumed>) = 1 [pid 6125] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5833] rmdir("./16" [pid 6131] fsync(-1 [pid 6128] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6131] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 5833] <... rmdir resumed>) = 0 [pid 6131] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5833] mkdir("./17", 0777 [pid 6131] <... futex resumed>) = 1 [pid 6128] <... futex resumed>) = 0 [pid 6135] <... write resumed>) = 1048576 [pid 6131] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6128] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5833] <... mkdir resumed>) = 0 [pid 6131] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6128] <... futex resumed>) = 0 [ 114.821967][ T6133] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5833] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6131] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6128] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6131] <... openat resumed>) = 5 [pid 5833] <... openat resumed>) = 3 [pid 6131] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5833] ioctl(3, LOOP_CLR_FD [pid 6131] <... futex resumed>) = 1 [pid 6128] <... futex resumed>) = 0 [pid 6131] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6128] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5833] <... ioctl resumed>) = 0 [pid 6131] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6128] <... futex resumed>) = 0 [pid 5833] close(3 [pid 6131] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 6128] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6135] munmap(0x7f0d62800000, 138412032) = 0 [pid 6135] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 6135] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6135] close(3) = 0 [pid 6135] close(4) = 0 [pid 6135] mkdir("./file2", 0777) = 0 [pid 6135] mount("/dev/loop4", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 6127] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 6127] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6127] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6126] close(3) = 0 [ 114.901050][ T6135] loop4: detected capacity change from 0 to 2048 [ 114.916388][ T6130] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5833] <... close resumed>) = 0 [pid 6131] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 6126] close(4 [pid 6125] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6131] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6126] <... close resumed>) = 0 [pid 6131] <... futex resumed>) = 1 [pid 6128] <... futex resumed>) = 0 [pid 6126] close(5 [pid 5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6131] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6128] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6126] <... close resumed>) = 0 ./strace-static-x86_64: Process 6136 attached [pid 6131] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6128] <... futex resumed>) = 0 [pid 6126] close(6 [pid 6131] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 6126] <... close resumed>) = 0 [pid 6136] set_robust_list(0x55555fa3c6a0, 24 [pid 6128] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5833] <... clone resumed>, child_tidptr=0x55555fa3c690) = 44 [pid 6136] <... set_robust_list resumed>) = 0 [pid 6126] close(7 [pid 6136] chdir("./17" [pid 6126] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6126] close(8 [pid 6131] <... openat resumed>) = 6 [pid 6126] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6136] <... chdir resumed>) = 0 [pid 6136] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6126] close(9 [pid 6136] <... prctl resumed>) = 0 [pid 6136] setpgid(0, 0) = 0 [pid 6126] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6131] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6136] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 6131] <... futex resumed>) = 1 [pid 6128] <... futex resumed>) = 0 [pid 6126] close(10 [pid 6135] <... mount resumed>) = 0 [pid 6136] <... symlink resumed>) = 0 [pid 6131] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 6128] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6135] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 6126] <... close resumed>) = -1 EBADF (Bad file descriptor) [ 114.947781][ T6134] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 114.958911][ T6135] NILFS (loop4): broken superblock, retrying with spare superblock (blocksize = 1024) [ 114.976924][ T5855] udevd[5855]: incorrect nilfs2 checksum on /dev/loop4 [pid 6128] <... futex resumed>) = 0 [pid 6126] close(11 [pid 6135] <... openat resumed>) = 3 [pid 6128] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6126] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6136] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 6136] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 6136] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6136] write(3, "1000", 4) = 4 [pid 6136] close(3) = 0 [pid 6135] chdir("./file2" [pid 6126] close(12 [pid 6136] symlink("/dev/binderfs", "./binderfs" [pid 6135] <... chdir resumed>) = 0 [pid 6126] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6135] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6126] close(13 [pid 6136] <... symlink resumed>) = 0 [pid 6135] <... openat resumed>) = -1 EBUSY (Device or resource busy) executing program [pid 6126] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6136] write(1, "executing program\n", 18 [pid 6135] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6126] close(14 [pid 6136] <... write resumed>) = 18 [pid 6135] <... futex resumed>) = 1 [pid 6132] <... futex resumed>) = 0 [pid 6126] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6136] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6135] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6132] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6126] close(15 [pid 6136] <... futex resumed>) = 0 [pid 6135] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6132] <... futex resumed>) = 0 [pid 6126] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6136] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, [pid 6135] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 6132] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6126] close(16 [pid 6136] <... rt_sigaction resumed>NULL, 8) = 0 [pid 6135] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 6126] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6136] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 6135] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6126] close(17 [pid 6136] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6135] <... futex resumed>) = 1 [pid 6132] <... futex resumed>) = 0 [pid 6126] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6136] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6135] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6132] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6126] close(18 [pid 6136] <... mmap resumed>) = 0x7f0d6adff000 [pid 6135] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6132] <... futex resumed>) = 0 [pid 6126] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6136] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE [pid 6135] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 6132] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6126] close(19 [pid 6136] <... mprotect resumed>) = 0 [pid 6126] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6136] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6135] <... openat resumed>) = 4 [pid 6126] close(20 [pid 6136] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6136] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0}./strace-static-x86_64: Process 6138 attached [pid 6135] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6138] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 6136] <... clone3 resumed> => {parent_tid=[45]}, 88) = 45 [pid 6132] <... futex resumed>) = 0 [pid 6126] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6138] <... rseq resumed>) = 0 [pid 6136] rt_sigprocmask(SIG_SETMASK, [], [pid 6135] <... futex resumed>) = 1 [pid 6132] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6126] close(21 [pid 6138] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 6136] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6138] <... set_robust_list resumed>) = 0 [pid 6136] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6135] read(-1, [pid 6132] <... futex resumed>) = 0 [pid 6126] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6138] rt_sigprocmask(SIG_SETMASK, [], [pid 6136] <... futex resumed>) = 0 [pid 6135] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 6132] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6126] close(22 [pid 6138] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6136] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6135] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6132] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6126] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6138] memfd_create("syzkaller", 0 [pid 6135] <... futex resumed>) = 0 [pid 6132] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6126] close(23 [pid 6138] <... memfd_create resumed>) = 3 [pid 6135] memfd_create("syzkaller", 0 [pid 6126] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6138] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6135] <... memfd_create resumed>) = 5 [pid 6132] <... futex resumed>) = 0 [pid 6126] close(24 [pid 6138] <... mmap resumed>) = 0x7f0d62800000 [pid 6135] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6132] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6126] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6135] <... mmap resumed>) = 0x7f0d62800000 [pid 6126] close(25) = -1 EBADF (Bad file descriptor) [pid 6126] close(26 [pid 6138] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6126] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6126] close(27) = -1 EBADF (Bad file descriptor) [pid 6135] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 6128] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6126] close(28) = -1 EBADF (Bad file descriptor) [ 114.998691][ T6137] NILFS (loop4): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6126] close(29) = -1 EBADF (Bad file descriptor) [pid 6126] exit_group(0 [pid 6127] <... futex resumed>) = ? [pid 6126] <... exit_group resumed>) = ? [pid 6127] +++ exited with 0 +++ [pid 6135] <... write resumed>) = 524288 [pid 6135] munmap(0x7f0d62800000, 138412032 [pid 6126] +++ exited with 0 +++ [pid 5834] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=43, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 5834] restart_syscall(<... resuming interrupted clone ...> [pid 6135] <... munmap resumed>) = 0 [pid 6135] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6135] close(5 [pid 5834] <... restart_syscall resumed>) = 0 [pid 5834] umount2("./17", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5834] openat(AT_FDCWD, "./17", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6135] <... close resumed>) = 0 [pid 5834] <... openat resumed>) = 3 [pid 6135] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5834] newfstatat(3, "", [pid 6135] <... futex resumed>) = 1 [pid 6132] <... futex resumed>) = 0 [pid 5834] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 6135] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6132] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5834] getdents64(3, [pid 6135] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6132] <... futex resumed>) = 0 [pid 5834] <... getdents64 resumed>0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 6135] fsync(-1 [pid 6132] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5834] umount2("./17/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6135] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6138] <... write resumed>) = 1048576 [pid 6135] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5834] newfstatat(AT_FDCWD, "./17/cgroup", [pid 6138] munmap(0x7f0d62800000, 138412032 [pid 6135] <... futex resumed>) = 1 [pid 6132] <... futex resumed>) = 0 [pid 5834] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6138] <... munmap resumed>) = 0 [pid 5834] unlink("./17/cgroup" [pid 6135] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6132] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6138] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6135] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6132] <... futex resumed>) = 0 [pid 5834] <... unlink resumed>) = 0 [pid 6138] <... openat resumed>) = 4 [pid 6135] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6132] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5834] umount2("./17/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6138] ioctl(4, LOOP_SET_FD, 3 [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5834] newfstatat(AT_FDCWD, "./17/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5834] unlink("./17/cgroup.cpu") = 0 [pid 5834] umount2("./17/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5834] newfstatat(AT_FDCWD, "./17/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5834] unlink("./17/cgroup.net") = 0 [pid 5834] umount2("./17/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5834] newfstatat(AT_FDCWD, "./17/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5834] unlink("./17/binderfs") = 0 [pid 5834] umount2("./17/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6135] <... openat resumed>) = 5 [pid 6135] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6132] <... futex resumed>) = 0 [pid 6135] <... futex resumed>) = 1 [pid 6135] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 6132] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6135] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 6132] <... futex resumed>) = 0 [ 115.115031][ T6138] loop0: detected capacity change from 0 to 2048 [ 115.126340][ T6130] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 115.148922][ T6137] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6132] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6138] <... ioctl resumed>) = 0 [pid 6135] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 6135] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6138] close(3) = 0 [pid 6135] <... futex resumed>) = 0 [pid 6132] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6135] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6132] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6135] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6132] <... futex resumed>) = 0 [pid 6135] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [ 115.170378][ T6130] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 115.183418][ T6130] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 115.195483][ T6130] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 115.207836][ T6133] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6132] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6138] close(4 [pid 6135] <... openat resumed>) = 6 [pid 6138] <... close resumed>) = 0 [pid 6135] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6129] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 6138] mkdir("./file2", 0777 [pid 6135] <... futex resumed>) = 1 [pid 6132] <... futex resumed>) = 0 [pid 6129] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6138] <... mkdir resumed>) = 0 [pid 6135] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6132] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6129] <... futex resumed>) = 0 [pid 6138] mount("/dev/loop0", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 6135] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6132] <... futex resumed>) = 0 [pid 6129] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6125] close(3 [pid 6131] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 6135] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 6132] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6131] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6125] <... close resumed>) = 0 [pid 6125] close(4 [pid 6131] <... futex resumed>) = 0 [pid 6125] <... close resumed>) = 0 [ 115.216254][ T6130] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 115.219120][ T6134] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 115.239317][ T6138] NILFS (loop0): broken superblock, retrying with spare superblock (blocksize = 1024) [ 115.249678][ T6130] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6131] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6125] close(5 [pid 6128] close(3 [pid 6125] <... close resumed>) = 0 [pid 6128] <... close resumed>) = 0 [pid 6125] close(6 [pid 6128] close(4 [pid 6125] <... close resumed>) = 0 [pid 6128] <... close resumed>) = 0 [pid 6125] close(7) = -1 EBADF (Bad file descriptor) [pid 6128] close(5 [pid 6125] close(8 [pid 6128] <... close resumed>) = 0 [pid 6125] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6128] close(6 [pid 6125] close(9 [pid 6128] <... close resumed>) = 0 [pid 6125] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6128] close(7 [pid 6125] close(10 [pid 6128] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6125] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6128] close(8 [pid 6125] close(11 [pid 6128] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6125] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6128] close(9 [pid 6125] close(12 [pid 6128] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6125] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6128] close(10) = -1 EBADF (Bad file descriptor) [pid 6125] close(13 [pid 6128] close(11 [pid 6125] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6128] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6125] close(14 [pid 6128] close(12 [pid 6125] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6128] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6125] close(15 [pid 6128] close(13 [pid 6125] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6128] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6125] close(16 [pid 6128] close(14 [pid 6125] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6128] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6125] close(17 [pid 6128] close(15 [pid 6125] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6128] <... close resumed>) = -1 EBADF (Bad file descriptor) [ 115.269543][ T5838] udevd[5838]: incorrect nilfs2 checksum on /dev/loop0 [ 115.280189][ T6130] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 115.304317][ T6130] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6125] close(18 [pid 6132] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6128] close(16 [pid 6125] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6138] <... mount resumed>) = 0 [pid 6128] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6125] close(19 [pid 6128] close(17 [pid 6125] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6125] close(20 [pid 6128] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6125] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6138] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 6125] close(21 [pid 6138] <... openat resumed>) = 3 [pid 6128] close(18 [pid 6125] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6128] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6125] close(22 [pid 6128] close(19 [pid 6125] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6138] chdir("./file2" [pid 6128] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6125] close(23 [pid 6128] close(20 [pid 6125] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6128] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6125] close(24 [pid 6128] close(21 [pid 6125] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6128] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6125] close(25 [pid 6128] close(22 [pid 6125] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6128] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6128] close(23 [pid 6125] close(26 [pid 6128] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6125] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6128] close(24 [pid 6125] close(27 [pid 6128] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6125] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6128] close(25 [pid 6125] close(28 [pid 6128] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6125] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6128] close(26 [pid 6125] close(29 [pid 6128] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6125] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6128] close(27 [pid 6138] <... chdir resumed>) = 0 [pid 6128] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6125] exit_group(0 [pid 6128] close(28 [pid 6129] <... futex resumed>) = ? [pid 6125] <... exit_group resumed>) = ? [pid 6128] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6138] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6129] +++ exited with 0 +++ [pid 6138] <... openat resumed>) = -1 EBUSY (Device or resource busy) [ 115.316642][ T6139] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 115.319796][ T6130] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 115.339117][ T6130] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 115.358799][ T6130] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6138] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6136] <... futex resumed>) = 0 [pid 6128] close(29 [pid 6125] +++ exited with 0 +++ [pid 6138] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6136] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6138] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6136] <... futex resumed>) = 0 [pid 6138] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 6136] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6138] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 6128] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5835] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=37, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 6128] exit_group(0 [pid 6131] <... futex resumed>) = ? [pid 6128] <... exit_group resumed>) = ? [pid 6131] +++ exited with 0 +++ [pid 6128] +++ exited with 0 +++ [pid 5835] umount2("./16", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5835] openat(AT_FDCWD, "./16", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5835] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 5836] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=40, si_uid=0, si_status=0, si_utime=0, si_stime=24 /* 0.24 s */} --- [pid 5835] getdents64(3, [pid 5836] restart_syscall(<... resuming interrupted clone ...> [pid 5835] <... getdents64 resumed>0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 5835] umount2("./16/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5835] newfstatat(AT_FDCWD, "./16/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5835] unlink("./16/cgroup") = 0 [pid 5835] umount2("./16/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5835] newfstatat(AT_FDCWD, "./16/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5835] unlink("./16/cgroup.cpu") = 0 [pid 5835] umount2("./16/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5835] newfstatat(AT_FDCWD, "./16/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6138] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5835] unlink("./16/cgroup.net" [pid 6136] <... futex resumed>) = 0 [pid 6138] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5835] <... unlink resumed>) = 0 [pid 5836] <... restart_syscall resumed>) = 0 [pid 5835] umount2("./16/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5835] newfstatat(AT_FDCWD, "./16/binderfs", [pid 5836] umount2("./16", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5835] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5835] unlink("./16/binderfs" [pid 5836] openat(AT_FDCWD, "./16", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5835] <... unlink resumed>) = 0 [pid 5836] <... openat resumed>) = 3 [pid 5835] umount2("./16/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5836] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 5836] getdents64(3, 0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 5836] umount2("./16/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5836] newfstatat(AT_FDCWD, "./16/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5836] unlink("./16/cgroup") = 0 [pid 5836] umount2("./16/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5836] newfstatat(AT_FDCWD, "./16/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5836] unlink("./16/cgroup.cpu") = 0 [pid 5836] umount2("./16/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5836] newfstatat(AT_FDCWD, "./16/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5836] unlink("./16/cgroup.net" [pid 6138] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6136] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5836] <... unlink resumed>) = 0 [pid 5836] umount2("./16/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5836] newfstatat(AT_FDCWD, "./16/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5836] unlink("./16/binderfs") = 0 [pid 5836] umount2("./16/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6138] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 6136] <... futex resumed>) = 0 [ 115.370426][ T6130] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 115.382073][ T6130] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 115.394628][ T6130] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 115.406766][ T6133] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6138] <... openat resumed>) = 4 [pid 6136] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6138] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6136] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6138] <... futex resumed>) = 0 [pid 6136] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6138] read(-1, [pid 6136] <... futex resumed>) = 0 [ 115.418307][ T6134] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 115.429704][ T6134] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 115.430017][ T6133] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 115.441381][ T6134] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6138] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 6136] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6138] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6136] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [ 115.462366][ T6130] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 115.463504][ T6133] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 115.479742][ T6134] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 115.486256][ T6133] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 115.500081][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6138] <... futex resumed>) = 0 [pid 6136] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6138] memfd_create("syzkaller", 0 [pid 6136] <... futex resumed>) = 0 [pid 6138] <... memfd_create resumed>) = 5 [ 115.507247][ T6133] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 115.527784][ T6133] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 115.529132][ T6134] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 115.541185][ T6137] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 115.559979][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6136] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6138] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 [pid 6135] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [ 115.561962][ T6133] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 115.581262][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 115.583771][ T6133] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 115.592674][ T6134] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6138] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 6135] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6132] close(3) = 0 [pid 6132] close(4) = 0 [pid 6132] close(5) = 0 [pid 6132] close(6) = 0 [pid 6132] close(7) = -1 EBADF (Bad file descriptor) [pid 6132] close(8) = -1 EBADF (Bad file descriptor) [pid 6132] close(9) = -1 EBADF (Bad file descriptor) [pid 6132] close(10) = -1 EBADF (Bad file descriptor) [pid 6132] close(11) = -1 EBADF (Bad file descriptor) [pid 6132] close(12) = -1 EBADF (Bad file descriptor) [pid 6132] close(13) = -1 EBADF (Bad file descriptor) [pid 6132] close(14) = -1 EBADF (Bad file descriptor) [pid 6132] close(15) = -1 EBADF (Bad file descriptor) [pid 6132] close(16 [pid 6135] <... futex resumed>) = 0 [pid 6132] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6132] close(17) = -1 EBADF (Bad file descriptor) [pid 6132] close(18) = -1 EBADF (Bad file descriptor) [pid 6132] close(19) = -1 EBADF (Bad file descriptor) [pid 6132] close(20) = -1 EBADF (Bad file descriptor) [pid 6132] close(21) = -1 EBADF (Bad file descriptor) [pid 6132] close(22) = -1 EBADF (Bad file descriptor) [pid 6132] close(23) = -1 EBADF (Bad file descriptor) [pid 6135] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6132] close(24) = -1 EBADF (Bad file descriptor) [pid 6132] close(25) = -1 EBADF (Bad file descriptor) [pid 6132] close(26) = -1 EBADF (Bad file descriptor) [pid 6132] close(27) = -1 EBADF (Bad file descriptor) [pid 6132] close(28) = -1 EBADF (Bad file descriptor) [pid 6132] close(29) = -1 EBADF (Bad file descriptor) [pid 6138] <... write resumed>) = 524288 [pid 6132] exit_group(0) = ? [pid 6138] munmap(0x7f0d62800000, 138412032 [pid 6135] <... futex resumed>) = ? [ 115.605107][ T6133] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 115.624444][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 115.641935][ T5834] NILFS (loop1): disposed unprocessed dirty file(s) when stopping log writer [ 115.643310][ T6133] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 115.652311][ T6134] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6138] <... munmap resumed>) = 0 [pid 6135] +++ exited with 0 +++ [pid 6132] +++ exited with 0 +++ [pid 5837] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=40, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 5837] umount2("./17", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5837] openat(AT_FDCWD, "./17", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5837] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 5837] getdents64(3, 0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 5837] umount2("./17/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5837] newfstatat(AT_FDCWD, "./17/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5837] unlink("./17/cgroup") = 0 [pid 5837] umount2("./17/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5837] newfstatat(AT_FDCWD, "./17/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5837] unlink("./17/cgroup.cpu" [pid 6138] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5837] <... unlink resumed>) = 0 [ 115.664910][ T6133] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 115.677171][ T6134] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 115.696786][ T6134] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 115.709160][ T6134] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6138] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5837] umount2("./17/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6138] close(5 [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6138] <... close resumed>) = 0 [pid 5837] newfstatat(AT_FDCWD, "./17/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5837] unlink("./17/cgroup.net") = 0 [pid 5837] umount2("./17/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5837] newfstatat(AT_FDCWD, "./17/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5837] unlink("./17/binderfs") = 0 [pid 5837] umount2("./17/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5834] <... umount2 resumed>) = 0 [ 115.715602][ T6133] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 115.720633][ T6134] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 115.732394][ T6133] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 115.755897][ T6134] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5834] umount2("./17/file2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5834] newfstatat(AT_FDCWD, "./17/file2", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5834] umount2("./17/file2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5834] openat(AT_FDCWD, "./17/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6138] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5834] <... openat resumed>) = 4 [pid 5834] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 5834] getdents64(4, 0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 5834] getdents64(4, 0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 5834] close(4) = 0 [pid 5834] rmdir("./17/file2") = 0 [pid 5834] getdents64(3, 0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 5834] close(3) = 0 [pid 5834] rmdir("./17") = 0 [pid 5834] mkdir("./18", 0777 [pid 6138] <... futex resumed>) = 1 [pid 6136] <... futex resumed>) = 0 [pid 5834] <... mkdir resumed>) = 0 [pid 6138] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6136] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6138] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6136] <... futex resumed>) = 0 [pid 6138] fsync(-1 [pid 6136] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6138] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 6138] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6136] <... futex resumed>) = 0 [pid 6138] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6136] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6138] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6136] <... futex resumed>) = 0 [pid 6138] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6136] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6138] <... openat resumed>) = 5 [pid 6138] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6136] <... futex resumed>) = 0 [pid 6138] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6136] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6138] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6136] <... futex resumed>) = 0 [ 115.767210][ T6134] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 115.779206][ T6137] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 115.779303][ T6134] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 115.801822][ T6134] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 115.809593][ T6139] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6138] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 6136] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6138] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 5834] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6138] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6136] <... futex resumed>) = 0 [pid 6138] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6136] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6138] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6136] <... futex resumed>) = 0 [pid 6138] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 6136] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6138] <... openat resumed>) = 6 [pid 6138] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6136] <... futex resumed>) = 0 [pid 6138] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 6136] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6136] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5834] <... openat resumed>) = 3 [pid 5834] ioctl(3, LOOP_CLR_FD) = 0 [pid 5834] close(3) = 0 [ 115.814117][ T6137] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 115.823397][ T6133] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 115.834490][ T5836] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 115.857722][ T6133] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5834] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555fa3c690) = 45 ./strace-static-x86_64: Process 6140 attached [pid 6140] set_robust_list(0x55555fa3c6a0, 24) = 0 [pid 6140] chdir("./18") = 0 [pid 6140] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6140] setpgid(0, 0) = 0 [pid 6140] symlink("/syzcgroup/unified/syz1", "./cgroup") = 0 [pid 6140] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu") = 0 [pid 6140] symlink("/syzcgroup/net/syz1", "./cgroup.net") = 0 [pid 6140] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6140] write(3, "1000", 4) = 4 [pid 6140] close(3) = 0 [pid 6140] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 6136] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6140] write(1, "executing program\n", 18) = 18 [pid 6140] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6140] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, NULL, 8) = 0 [pid 6140] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6140] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0d6adff000 [pid 6140] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6140] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6140] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0}./strace-static-x86_64: Process 6141 attached [ 115.893643][ T6137] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 115.905765][ T5836] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 115.920453][ T5835] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 115.932093][ T6137] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 115.940997][ T5835] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 115.943627][ T5836] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 115.964515][ T5836] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 115.975169][ T5836] NILFS (loop2): disposed unprocessed dirty file(s) when stopping log writer [pid 6141] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 6140] <... clone3 resumed> => {parent_tid=[46]}, 88) = 46 [pid 6141] <... rseq resumed>) = 0 [pid 6140] rt_sigprocmask(SIG_SETMASK, [], [pid 6141] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 6140] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6141] <... set_robust_list resumed>) = 0 [pid 6140] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6141] rt_sigprocmask(SIG_SETMASK, [], [pid 6140] <... futex resumed>) = 0 [pid 6141] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6140] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6141] memfd_create("syzkaller", 0) = 3 [pid 6141] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 [ 115.979654][ T5835] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 116.003402][ T6137] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 116.014570][ T6137] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 116.025497][ T5835] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6141] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5836] <... umount2 resumed>) = 0 [pid 5836] umount2("./16/file2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5836] newfstatat(AT_FDCWD, "./16/file2", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5836] umount2("./16/file2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5836] openat(AT_FDCWD, "./16/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5836] newfstatat(4, "", [pid 6141] <... write resumed>) = 1048576 [pid 5836] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 5836] getdents64(4, 0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 5836] getdents64(4, 0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 5836] close(4) = 0 [pid 5836] rmdir("./16/file2") = 0 [pid 6141] munmap(0x7f0d62800000, 138412032 [pid 5836] getdents64(3, 0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 5836] close(3) = 0 [pid 5836] rmdir("./16") = 0 [pid 5836] mkdir("./17", 0777) = 0 [pid 5836] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 6141] <... munmap resumed>) = 0 [pid 5836] ioctl(3, LOOP_CLR_FD) = 0 [pid 5836] close(3 [pid 6141] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 6141] ioctl(4, LOOP_SET_FD, 3) = 0 [ 116.025847][ T6137] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 116.048250][ T6137] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 116.061041][ T6137] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 116.070121][ T6141] loop1: detected capacity change from 0 to 2048 [ 116.071923][ T6137] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5836] <... close resumed>) = 0 [pid 5836] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6142 attached [pid 6141] close(3 [pid 6142] set_robust_list(0x55555fa3c6a0, 24 [pid 5836] <... clone resumed>, child_tidptr=0x55555fa3c690) = 42 [pid 6142] <... set_robust_list resumed>) = 0 [pid 6142] chdir("./17") = 0 [pid 6142] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6141] <... close resumed>) = 0 [pid 6142] <... prctl resumed>) = 0 [pid 6142] setpgid(0, 0 [pid 6141] close(4) = 0 [pid 6142] <... setpgid resumed>) = 0 [pid 6142] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 6141] mkdir("./file2", 0777) = 0 [pid 6142] <... symlink resumed>) = 0 [ 116.090287][ T6137] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 116.102106][ T6137] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 116.113850][ T6137] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 116.116708][ T6141] NILFS (loop1): broken superblock, retrying with spare superblock (blocksize = 1024) [pid 6141] mount("/dev/loop1", "./file2", "nilfs2", MS_SYNCHRONOUS, ""executing program [pid 6142] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu") = 0 [pid 6142] symlink("/syzcgroup/net/syz2", "./cgroup.net") = 0 [pid 6142] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6142] write(3, "1000", 4) = 4 [pid 6142] close(3) = 0 [pid 6142] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6142] write(1, "executing program\n", 18) = 18 [pid 6142] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6142] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, NULL, 8) = 0 [pid 6142] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6142] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0d6adff000 [pid 6142] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6142] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6142] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0} => {parent_tid=[43]}, 88) = 43 [pid 6142] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6142] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6142] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 6143 attached [ 116.125397][ T6137] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 116.146082][ T6137] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 116.157551][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 116.169687][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6143] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053) = 0 [pid 6143] set_robust_list(0x7f0d6ae1f9a0, 24) = 0 [pid 6143] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6143] memfd_create("syzkaller", 0) = 3 [pid 6143] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 [ 116.188834][ T6144] NILFS (loop1): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 116.189057][ T5855] udevd[5855]: incorrect nilfs2 checksum on /dev/loop1 [ 116.200828][ T5835] NILFS (loop3): disposed unprocessed dirty file(s) when stopping log writer [ 116.225357][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6143] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6141] <... mount resumed>) = 0 [pid 6141] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY) = 3 [pid 6141] chdir("./file2") = 0 [pid 6141] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6141] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6140] <... futex resumed>) = 0 [pid 6141] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6140] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6141] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6140] <... futex resumed>) = 0 [pid 6141] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 6140] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6141] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 6141] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6140] <... futex resumed>) = 0 [pid 6141] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6140] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6141] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6140] <... futex resumed>) = 0 [pid 6141] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 6140] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6141] <... openat resumed>) = 4 [pid 6141] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6140] <... futex resumed>) = 0 [pid 6141] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6140] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6141] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6140] <... futex resumed>) = 0 [pid 6141] read(-1, [pid 6140] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6141] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 6141] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6143] <... write resumed>) = 1048576 [pid 6140] <... futex resumed>) = 0 [pid 6138] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 6143] munmap(0x7f0d62800000, 138412032 [pid 6138] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6143] <... munmap resumed>) = 0 [pid 6141] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6140] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6138] <... futex resumed>) = 0 [pid 6143] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 6138] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6143] <... openat resumed>) = 4 [pid 6141] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6140] <... futex resumed>) = 0 [pid 6136] close(3 [pid 6143] ioctl(4, LOOP_SET_FD, 3 [pid 6141] memfd_create("syzkaller", 0 [pid 6140] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6136] <... close resumed>) = 0 [pid 6141] <... memfd_create resumed>) = 5 [ 116.236733][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 116.248699][ T5837] NILFS (loop4): disposed unprocessed dirty file(s) when stopping log writer [ 116.265677][ T6139] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6136] close(4 [pid 6141] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6136] <... close resumed>) = 0 [pid 6141] <... mmap resumed>) = 0x7f0d62800000 [pid 6136] close(5 [pid 6141] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 6136] <... close resumed>) = 0 [pid 6141] <... write resumed>) = 524288 [pid 6136] close(6 [pid 6143] <... ioctl resumed>) = 0 [pid 6141] munmap(0x7f0d62800000, 138412032 [pid 6136] <... close resumed>) = 0 [pid 5835] <... umount2 resumed>) = 0 [pid 5835] umount2("./16/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6143] close(3 [pid 6141] <... munmap resumed>) = 0 [pid 6136] close(7 [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5835] newfstatat(AT_FDCWD, "./16/file2", [pid 6143] <... close resumed>) = 0 [pid 6141] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6136] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5835] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5835] umount2("./16/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6143] close(4 [pid 6141] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6136] close(8 [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5835] openat(AT_FDCWD, "./16/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6143] <... close resumed>) = 0 [pid 6141] close(5 [pid 6136] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5835] <... openat resumed>) = 4 [pid 6143] mkdir("./file2", 0777 [pid 6141] <... close resumed>) = 0 [pid 6136] close(9 [pid 5835] newfstatat(4, "", [pid 6143] <... mkdir resumed>) = 0 [pid 5835] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 6143] mount("/dev/loop2", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 6141] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6136] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5835] getdents64(4, 0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 5835] getdents64(4, 0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 5835] close(4) = 0 [pid 6141] <... futex resumed>) = 1 [pid 6136] close(10 [pid 5835] rmdir("./16/file2" [pid 6141] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6140] <... futex resumed>) = 0 [pid 6136] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5835] <... rmdir resumed>) = 0 [pid 6136] close(11 [pid 5835] getdents64(3, [pid 6136] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5835] <... getdents64 resumed>0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 6136] close(12 [pid 5835] close(3) = 0 [pid 5835] rmdir("./16") = 0 [pid 5835] mkdir("./17", 0777 [pid 6136] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5835] <... mkdir resumed>) = 0 [pid 6140] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5835] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6140] <... futex resumed>) = 1 [pid 6136] close(13 [pid 6140] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6136] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5835] <... openat resumed>) = 3 [pid 6136] close(14 [pid 5837] <... umount2 resumed>) = 0 [pid 5835] ioctl(3, LOOP_CLR_FD [pid 6136] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5837] umount2("./17/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6141] <... futex resumed>) = 0 [pid 6136] close(15 [pid 5835] <... ioctl resumed>) = 0 [pid 6136] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6141] fsync(-1 [pid 6136] close(16 [pid 6141] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 6136] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6141] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6136] close(17 [pid 6141] <... futex resumed>) = 1 [pid 6136] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6140] <... futex resumed>) = 0 [pid 6136] close(18 [pid 6141] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6140] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6136] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6141] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6140] <... futex resumed>) = 0 [pid 6136] close(19) = -1 EBADF (Bad file descriptor) [pid 6136] close(20 [pid 6141] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6140] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6136] <... close resumed>) = -1 EBADF (Bad file descriptor) [ 116.294334][ T6143] loop2: detected capacity change from 0 to 2048 [pid 6136] close(21) = -1 EBADF (Bad file descriptor) [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5835] close(3 [pid 6141] <... openat resumed>) = 5 [pid 6136] close(22) = -1 EBADF (Bad file descriptor) [pid 6141] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6136] close(23 [pid 6140] <... futex resumed>) = 0 [pid 6136] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6136] close(24 [pid 6141] <... futex resumed>) = 1 [pid 6140] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6136] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6141] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 6136] close(25 [pid 6140] <... futex resumed>) = 0 [pid 6136] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6136] close(26) = -1 EBADF (Bad file descriptor) [pid 6136] close(27) = -1 EBADF (Bad file descriptor) [pid 6136] close(28) = -1 EBADF (Bad file descriptor) [pid 6140] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6136] close(29) = -1 EBADF (Bad file descriptor) [pid 6136] exit_group(0) = ? [pid 6138] <... futex resumed>) = ? [pid 5837] newfstatat(AT_FDCWD, "./17/file2", [pid 5835] <... close resumed>) = 0 [pid 6138] +++ exited with 0 +++ [pid 6136] +++ exited with 0 +++ [pid 5837] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5835] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=44, si_uid=0, si_status=0, si_utime=0, si_stime=24 /* 0.24 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, 0x55555fa3d730 /* 7 entries */, 32768) = 208 [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] 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.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"./strace-static-x86_64: Process 6148 attached [pid 5837] umount2("./17/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5833] <... unlink resumed>) = 0 [pid 6148] set_robust_list(0x55555fa3c6a0, 24 [pid 6143] <... mount resumed>) = 0 [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5835] <... clone resumed>, child_tidptr=0x55555fa3c690) = 39 [pid 5833] umount2("./17/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6143] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6143] <... openat resumed>) = 3 [ 116.360207][ T5838] udevd[5838]: incorrect nilfs2 checksum on /dev/loop2 [ 116.369990][ T6143] NILFS (loop2): broken superblock, retrying with spare superblock (blocksize = 1024) [ 116.399383][ T6147] NILFS (loop2): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 5833] newfstatat(AT_FDCWD, "./17/binderfs", [pid 6143] chdir("./file2" [pid 5833] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6143] <... chdir resumed>) = 0 [pid 5833] unlink("./17/binderfs" [pid 6143] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5833] <... unlink resumed>) = 0 [pid 6143] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6140] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5833] umount2("./17/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6143] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6140] futex(0x7f0d6aef46dc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6143] <... futex resumed>) = 1 [pid 6142] <... futex resumed>) = 0 [pid 6140] <... futex resumed>) = 0 [pid 6143] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6142] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6140] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6143] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6142] <... futex resumed>) = 0 [pid 6140] <... mmap resumed>) = 0x7f0d6adde000 [pid 6143] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 6142] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6140] mprotect(0x7f0d6addf000, 131072, PROT_READ|PROT_WRITE [pid 6143] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 6140] <... mprotect resumed>) = 0 [pid 6143] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6141] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 6140] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6148] <... set_robust_list resumed>) = 0 [pid 6143] <... futex resumed>) = 1 [pid 6142] <... futex resumed>) = 0 [pid 6140] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5837] openat(AT_FDCWD, "./17/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6141] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6148] chdir("./17" [pid 6143] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6142] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6140] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6adfe990, parent_tid=0x7f0d6adfe990, exit_signal=0, stack=0x7f0d6adde000, stack_size=0x20300, tls=0x7f0d6adfe6c0} [pid 6143] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6142] <... futex resumed>) = 0 [pid 6143] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 6142] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6140] <... clone3 resumed> => {parent_tid=[47]}, 88) = 47 [pid 6143] <... openat resumed>) = 4 [pid 6140] rt_sigprocmask(SIG_SETMASK, [], [pid 6143] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6140] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6143] <... futex resumed>) = 1 [pid 6142] <... futex resumed>) = 0 [pid 6140] futex(0x7f0d6aef46d8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6143] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6142] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6140] <... futex resumed>) = 0 ./strace-static-x86_64: Process 6149 attached [pid 6148] <... chdir resumed>) = 0 [pid 6143] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6142] <... futex resumed>) = 0 [pid 6141] <... futex resumed>) = 0 [pid 6140] futex(0x7f0d6aef46dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6143] read(-1, [pid 6142] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5837] <... openat resumed>) = 4 [pid 6143] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 6143] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6142] <... futex resumed>) = 0 [pid 6143] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6142] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6143] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6142] <... futex resumed>) = 0 [pid 6143] memfd_create("syzkaller", 0 [pid 6142] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6148] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6149] rseq(0x7f0d6adfefe0, 0x20, 0, 0x53053053 [pid 5837] newfstatat(4, "", [pid 6141] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6143] <... memfd_create resumed>) = 5 [pid 6143] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 [ 116.415041][ T6144] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 116.428343][ T6139] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 116.440120][ T6139] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6143] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 6149] <... rseq resumed>) = 0 [pid 6148] <... prctl resumed>) = 0 [pid 6143] <... write resumed>) = 524288 [pid 5837] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 5837] getdents64(4, 0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 5837] getdents64(4, 0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 6149] set_robust_list(0x7f0d6adfe9a0, 24) = 0 [pid 6149] rt_sigprocmask(SIG_SETMASK, [], [pid 6148] setpgid(0, 0 [pid 6149] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6149] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 6148] <... setpgid resumed>) = 0 [pid 6148] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 6143] munmap(0x7f0d62800000, 138412032 [pid 6149] <... openat resumed>) = 6 [pid 6148] <... symlink resumed>) = 0 [pid 6143] <... munmap resumed>) = 0 [pid 6148] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 6149] futex(0x7f0d6aef46dc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6143] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5837] close(4 [pid 6149] <... futex resumed>) = 0 [pid 6148] <... symlink resumed>) = 0 [pid 6143] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6140] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5837] <... close resumed>) = 0 [pid 6149] futex(0x7f0d6aef46d8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6148] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 6143] close(5 [pid 6140] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6143] <... close resumed>) = 0 [pid 6140] <... futex resumed>) = 1 [pid 5837] rmdir("./17/file2" [pid 6148] <... symlink resumed>) = 0 [pid 6140] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5837] <... rmdir resumed>) = 0 [pid 5837] getdents64(3, [pid 6148] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6141] <... futex resumed>) = 0 [pid 5837] <... getdents64 resumed>0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 6148] <... openat resumed>) = 3 [pid 5837] close(3) = 0 [pid 5837] rmdir("./17") = 0 [ 116.461277][ T6139] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 116.479924][ T6139] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 116.491011][ T6139] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 116.501970][ T6139] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6148] write(3, "1000", 4 [pid 5837] mkdir("./18", 0777 [pid 6148] <... write resumed>) = 4 [pid 5837] <... mkdir resumed>) = 0 [pid 6148] close(3) = 0 [pid 6143] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6148] symlink("/dev/binderfs", "./binderfs" [pid 6143] <... futex resumed>) = 1 [pid 6142] <... futex resumed>) = 0 [pid 6148] <... symlink resumed>) = 0 [pid 5837] <... openat resumed>) = 3 [pid 5837] ioctl(3, LOOP_CLR_FD [pid 6143] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6142] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6141] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 5837] <... ioctl resumed>) = 0 [pid 6143] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6142] <... futex resumed>) = 0 [pid 5837] close(3 [pid 6143] fsync(-1 [pid 6142] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6143] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 6148] write(1, "executing program\n", 18 [pid 6143] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6142] <... futex resumed>) = 0 [pid 6143] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6142] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6143] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6142] <... futex resumed>) = 0 executing program [pid 6143] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6142] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6148] <... write resumed>) = 18 [pid 5837] <... close resumed>) = 0 [pid 6148] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6150 attached [pid 6148] <... futex resumed>) = 0 [pid 6143] <... openat resumed>) = 5 [pid 6140] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6150] set_robust_list(0x55555fa3c6a0, 24 [pid 6148] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, [pid 6143] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6142] <... futex resumed>) = 0 [pid 6143] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 6142] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6142] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5837] <... clone resumed>, child_tidptr=0x55555fa3c690) = 42 [pid 6150] <... set_robust_list resumed>) = 0 [pid 6148] <... rt_sigaction resumed>NULL, 8) = 0 [pid 6150] chdir("./18" [pid 6148] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 6150] <... chdir resumed>) = 0 [pid 6148] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6150] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6148] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6150] <... prctl resumed>) = 0 [ 116.513315][ T6139] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 116.538735][ T6139] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 116.553748][ T6139] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6150] setpgid(0, 0) = 0 [pid 6148] <... mmap resumed>) = 0x7f0d6adff000 [pid 6143] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 6143] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6142] <... futex resumed>) = 0 [pid 6150] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 6148] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE [pid 6143] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6142] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6150] <... symlink resumed>) = 0 [pid 6148] <... mprotect resumed>) = 0 [pid 6150] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 6143] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6148] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6142] <... futex resumed>) = 0 [pid 6150] <... symlink resumed>) = 0 [pid 6148] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6143] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 6142] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6150] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 6148] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0} [pid 6150] <... symlink resumed>) = 0 [pid 6150] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6148] <... clone3 resumed> => {parent_tid=[40]}, 88) = 40 [pid 6150] <... openat resumed>) = 3 [pid 6148] rt_sigprocmask(SIG_SETMASK, [], [pid 6150] write(3, "1000", 4 [pid 6148] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6150] <... write resumed>) = 4 [pid 6148] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6150] close(3 [pid 6148] <... futex resumed>) = 0 [pid 6150] <... close resumed>) = 0 [pid 6148] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 6151 attached [pid 6151] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053) = 0 [pid 6151] set_robust_list(0x7f0d6ae1f9a0, 24) = 0 [pid 6151] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6151] memfd_create("syzkaller", 0) = 3 [pid 6151] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 [ 116.572727][ T6147] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 116.572802][ T6139] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 executing program [pid 6143] <... openat resumed>) = 6 [pid 6151] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6150] symlink("/dev/binderfs", "./binderfs" [pid 6143] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6142] <... futex resumed>) = 0 [pid 6150] <... symlink resumed>) = 0 [pid 6150] write(1, "executing program\n", 18 [pid 6143] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6150] <... write resumed>) = 18 [pid 6150] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6142] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6150] <... futex resumed>) = 0 [pid 6150] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, [pid 6143] <... futex resumed>) = 0 [pid 6142] <... futex resumed>) = 1 [pid 6150] <... rt_sigaction resumed>NULL, 8) = 0 [pid 6143] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 6142] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6150] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6150] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0d6adff000 [ 116.615753][ T6139] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 116.639408][ T6139] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6151] <... write resumed>) = 1048576 [pid 6150] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE [pid 6151] munmap(0x7f0d62800000, 138412032) = 0 [pid 6150] <... mprotect resumed>) = 0 [pid 6151] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 6150] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6151] ioctl(4, LOOP_SET_FD, 3 [pid 6150] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6142] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6151] <... ioctl resumed>) = 0 [pid 6151] close(3) = 0 [pid 6151] close(4) = 0 [pid 6150] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0} [pid 6151] mkdir("./file2", 0777) = 0 [pid 6151] mount("/dev/loop3", "./file2", "nilfs2", MS_SYNCHRONOUS, ""./strace-static-x86_64: Process 6153 attached [pid 6150] <... clone3 resumed> => {parent_tid=[43]}, 88) = 43 [ 116.658455][ T6139] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 116.677052][ T6151] loop3: detected capacity change from 0 to 2048 [ 116.696019][ T6139] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6153] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 6150] rt_sigprocmask(SIG_SETMASK, [], [pid 6153] <... rseq resumed>) = 0 [pid 6150] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6153] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 6150] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6153] <... set_robust_list resumed>) = 0 [pid 6150] <... futex resumed>) = 0 [pid 6153] rt_sigprocmask(SIG_SETMASK, [], [pid 6150] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6153] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6153] memfd_create("syzkaller", 0) = 3 [pid 6153] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 [ 116.706948][ T6151] NILFS (loop3): broken superblock, retrying with spare superblock (blocksize = 1024) [ 116.730993][ T6139] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 116.750247][ T5838] udevd[5838]: incorrect nilfs2 checksum on /dev/loop3 [pid 6153] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6151] <... mount resumed>) = 0 [pid 6151] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY) = 3 [pid 6151] chdir("./file2") = 0 [pid 6151] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6151] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6148] <... futex resumed>) = 0 [pid 6151] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6148] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6151] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6148] <... futex resumed>) = 0 [pid 6151] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 6148] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6151] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 6151] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6148] <... futex resumed>) = 0 [pid 6151] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 6148] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6151] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 6148] <... futex resumed>) = 0 [pid 6151] <... openat resumed>) = 4 [pid 6148] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6151] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6148] <... futex resumed>) = 0 [pid 6151] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6148] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6153] <... write resumed>) = 1048576 [pid 6151] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6148] <... futex resumed>) = 0 [pid 6153] munmap(0x7f0d62800000, 138412032 [pid 6151] read(-1, [pid 6148] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6153] <... munmap resumed>) = 0 [pid 6151] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 6153] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6151] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6151] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6148] <... futex resumed>) = 0 [ 116.751629][ T6154] NILFS (loop3): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 116.771646][ T5833] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 116.800025][ T5833] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6153] <... openat resumed>) = 4 [pid 6153] ioctl(4, LOOP_SET_FD, 3 [pid 6148] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5833] <... umount2 resumed>) = 0 [pid 5833] umount2("./17/file2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 116.813102][ T5833] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 116.829941][ T5833] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 116.841276][ T5833] NILFS (loop0): disposed unprocessed dirty file(s) when stopping log writer [pid 5833] newfstatat(AT_FDCWD, "./17/file2", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] umount2("./17/file2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] openat(AT_FDCWD, "./17/file2", 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 6153] <... ioctl resumed>) = 0 [pid 6151] <... futex resumed>) = 0 [pid 6148] <... futex resumed>) = 1 [pid 5833] getdents64(4, [pid 6151] memfd_create("syzkaller", 0) = 5 [pid 6148] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5833] <... getdents64 resumed>0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 6151] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 [pid 5833] getdents64(4, [pid 6151] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5833] <... getdents64 resumed>0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 5833] close(4) = 0 [pid 5833] rmdir("./17/file2") = 0 [pid 5833] getdents64(3, 0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 5833] close(3 [pid 6151] <... write resumed>) = 524288 [pid 5833] <... close resumed>) = 0 [pid 5833] rmdir("./17") = 0 [pid 6153] close(3 [pid 5833] mkdir("./18", 0777) = 0 [pid 6151] munmap(0x7f0d62800000, 138412032 [pid 5833] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6151] <... munmap resumed>) = 0 [pid 5833] <... openat resumed>) = 3 [pid 5833] ioctl(3, LOOP_CLR_FD [pid 6151] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5833] <... ioctl resumed>) = 0 [pid 6151] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5833] close(3 [pid 6151] close(5 [pid 6141] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 6153] <... close resumed>) = 0 [ 116.889832][ T6153] loop4: detected capacity change from 0 to 2048 [ 116.918156][ T6144] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6151] <... close resumed>) = 0 [pid 6153] close(4 [pid 6143] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 6141] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5833] <... close resumed>) = 0 [pid 6143] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6142] close(3 [pid 6143] <... futex resumed>) = 0 [pid 6142] <... close resumed>) = 0 [pid 6143] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6142] close(4) = 0 [pid 6140] close(3 [pid 5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6142] close(5 [pid 6140] <... close resumed>) = 0 [pid 6142] <... close resumed>) = 0 [pid 6140] close(4./strace-static-x86_64: Process 6155 attached [pid 6142] close(6 [pid 6140] <... close resumed>) = 0 [pid 6155] set_robust_list(0x55555fa3c6a0, 24 [pid 6142] <... close resumed>) = 0 [pid 6140] close(5 [pid 5833] <... clone resumed>, child_tidptr=0x55555fa3c690) = 46 [pid 6155] <... set_robust_list resumed>) = 0 [pid 6142] close(7 [pid 6140] <... close resumed>) = 0 [pid 6141] <... futex resumed>) = 0 [pid 6155] chdir("./18" [pid 6153] <... close resumed>) = 0 [pid 6151] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6142] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6141] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6140] close(6 [pid 6155] <... chdir resumed>) = 0 [pid 6151] <... futex resumed>) = 1 [pid 6148] <... futex resumed>) = 0 [pid 6142] close(8 [pid 6140] <... close resumed>) = 0 [pid 6155] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6151] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6148] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6142] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6140] close(7 [pid 6155] <... prctl resumed>) = 0 [pid 6151] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6148] <... futex resumed>) = 0 [pid 6142] close(9 [pid 6155] setpgid(0, 0 [ 116.930797][ T6147] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6151] fsync(-1 [pid 6142] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6140] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6151] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 6148] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6142] close(10 [pid 6140] close(8 [pid 6155] <... setpgid resumed>) = 0 [pid 6151] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6148] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6142] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6140] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6155] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 6151] <... futex resumed>) = 0 [pid 6148] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6142] close(11 [pid 6140] close(9 [pid 6155] <... symlink resumed>) = 0 [pid 6151] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6148] <... futex resumed>) = 0 [pid 6142] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6140] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6155] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 6153] mkdir("./file2", 0777 [pid 6151] <... openat resumed>) = 5 [pid 6148] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6142] close(12 [pid 6140] close(10 [pid 6155] <... symlink resumed>) = 0 [pid 6153] <... mkdir resumed>) = 0 [pid 6151] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6148] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6142] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6140] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6155] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 6151] <... futex resumed>) = 0 [pid 6148] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6142] close(13 [pid 6140] close(11 [pid 6155] <... symlink resumed>) = 0 [pid 6151] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 6148] <... futex resumed>) = 0 [pid 6142] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6140] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6155] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6142] close(14 [pid 6140] close(12 [pid 6142] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6140] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6155] <... openat resumed>) = 3 [pid 6148] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6142] close(15 [pid 6140] close(13 [pid 6155] write(3, "1000", 4 [pid 6142] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6140] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6155] <... write resumed>) = 4 [pid 6142] close(16 [pid 6140] close(14 [pid 6155] close(3 [pid 6142] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6140] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6155] <... close resumed>) = 0 [pid 6153] mount("/dev/loop4", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 6142] close(17 [pid 6140] close(15 [pid 6155] symlink("/dev/binderfs", "./binderfs" [pid 6140] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6155] <... symlink resumed>) = 0 [pid 6142] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6140] close(16 [pid 6155] write(1, "executing program\n", 18 [pid 6153] <... mount resumed>) = 0 [pid 6151] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 6142] close(18 [pid 6140] <... close resumed>) = -1 EBADF (Bad file descriptor) [ 116.996539][ T5838] udevd[5838]: incorrect nilfs2 checksum on /dev/loop4 [ 117.015335][ T6153] NILFS (loop4): broken superblock, retrying with spare superblock (blocksize = 1024) [ 117.015690][ T6154] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 executing program [pid 6155] <... write resumed>) = 18 [pid 6153] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 6142] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6140] close(17 [pid 6155] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6153] <... openat resumed>) = 3 [pid 6151] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6142] close(19 [pid 6140] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6155] <... futex resumed>) = 0 [pid 6153] chdir("./file2" [pid 6151] <... futex resumed>) = 1 [pid 6148] <... futex resumed>) = 0 [pid 6142] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6140] close(18 [pid 6155] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, [pid 6153] <... chdir resumed>) = 0 [pid 6151] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6148] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6142] close(20 [pid 6140] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6155] <... rt_sigaction resumed>NULL, 8) = 0 [pid 6153] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6151] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6148] <... futex resumed>) = 0 [pid 6142] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6140] close(19 [pid 6155] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 6153] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6151] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 6148] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6142] close(21 [pid 6140] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6155] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6142] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6140] close(20 [pid 6155] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6142] close(22 [pid 6140] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6155] <... mmap resumed>) = 0x7f0d6adff000 [pid 6142] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6140] close(21 [pid 6155] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE [pid 6142] close(23 [pid 6151] <... openat resumed>) = 6 [pid 6140] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6155] <... mprotect resumed>) = 0 [pid 6153] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6142] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6140] close(22 [pid 6155] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6153] <... futex resumed>) = 1 [pid 6151] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6140] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6155] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6142] close(24 [pid 6140] close(23 [pid 6155] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0} [pid 6153] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6151] <... futex resumed>) = 1 [pid 6150] <... futex resumed>) = 0 [pid 6148] <... futex resumed>) = 0 [pid 6142] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6140] <... close resumed>) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 6157 attached [pid 6151] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6148] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6142] close(25 [pid 6157] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 6151] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6150] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6148] <... futex resumed>) = 0 [pid 6142] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6140] close(24 [pid 6157] <... rseq resumed>) = 0 [pid 6155] <... clone3 resumed> => {parent_tid=[47]}, 88) = 47 [pid 6153] <... futex resumed>) = 0 [pid 6151] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 6150] <... futex resumed>) = 1 [pid 6148] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6142] close(26 [pid 6140] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6157] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 6155] rt_sigprocmask(SIG_SETMASK, [], [pid 6142] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6140] close(25 [pid 6155] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6142] close(27 [pid 6140] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6155] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6142] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6140] close(26 [pid 6155] <... futex resumed>) = 0 [pid 6142] close(28 [pid 6140] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6155] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6142] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6140] close(27 [pid 6142] close(29 [pid 6140] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6142] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6140] close(28 [pid 6142] exit_group(0 [pid 6140] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6142] <... exit_group resumed>) = ? [pid 6140] close(29) = -1 EBADF (Bad file descriptor) [pid 6157] <... set_robust_list resumed>) = 0 [pid 6153] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 6150] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6143] <... futex resumed>) = ? [pid 6140] exit_group(0 [pid 6157] rt_sigprocmask(SIG_SETMASK, [], [pid 6153] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 6140] <... exit_group resumed>) = ? [pid 6141] <... futex resumed>) = ? [pid 6157] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6153] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6149] <... futex resumed>) = ? [pid 6141] +++ exited with 0 +++ [pid 6157] memfd_create("syzkaller", 0 [pid 6153] <... futex resumed>) = 1 [pid 6150] <... futex resumed>) = 0 [ 117.034188][ T6156] NILFS (loop4): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6157] <... memfd_create resumed>) = 3 [pid 6153] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6150] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6149] +++ exited with 0 +++ [pid 6143] +++ exited with 0 +++ [pid 6142] +++ exited with 0 +++ [pid 6140] +++ exited with 0 +++ [pid 6157] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6153] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6150] <... futex resumed>) = 0 [pid 5834] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=45, si_uid=0, si_status=0, si_utime=0, si_stime=23 /* 0.23 s */} --- [pid 6157] <... mmap resumed>) = 0x7f0d62800000 [pid 6153] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 5836] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=42, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 6157] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6150] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5834] restart_syscall(<... resuming interrupted clone ...> [pid 6153] <... openat resumed>) = 4 [pid 5836] restart_syscall(<... resuming interrupted clone ...> [pid 5834] <... restart_syscall resumed>) = 0 [pid 6153] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5836] <... restart_syscall resumed>) = 0 [pid 5834] umount2("./18", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6150] <... futex resumed>) = 0 [pid 6153] <... futex resumed>) = 1 [pid 6150] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6153] read(-1, [pid 6150] <... futex resumed>) = 0 [pid 5836] umount2("./17", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5834] openat(AT_FDCWD, "./18", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6153] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 6150] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5834] <... openat resumed>) = 3 [pid 5836] openat(AT_FDCWD, "./17", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6153] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5834] newfstatat(3, "", [pid 5836] <... openat resumed>) = 3 [pid 5836] newfstatat(3, "", [pid 5834] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 6153] <... futex resumed>) = 1 [pid 6150] <... futex resumed>) = 0 [pid 5836] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 6153] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6150] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5834] getdents64(3, [pid 6153] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6150] <... futex resumed>) = 0 [pid 5836] getdents64(3, [pid 6153] memfd_create("syzkaller", 0 [pid 5834] <... getdents64 resumed>0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 6150] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5836] <... getdents64 resumed>0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 6153] <... memfd_create resumed>) = 5 [pid 5834] umount2("./18/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6153] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5836] umount2("./17/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5834] newfstatat(AT_FDCWD, "./18/cgroup", [pid 6153] <... mmap resumed>) = 0x7f0d62800000 [pid 5836] newfstatat(AT_FDCWD, "./17/cgroup", [pid 6157] <... write resumed>) = 1048576 [pid 5834] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6148] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5836] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5834] unlink("./18/cgroup" [pid 6157] munmap(0x7f0d62800000, 138412032 [pid 5836] unlink("./17/cgroup" [pid 6157] <... munmap resumed>) = 0 [pid 5834] <... unlink resumed>) = 0 [pid 5836] <... unlink resumed>) = 0 [pid 5834] umount2("./18/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5836] umount2("./17/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5834] newfstatat(AT_FDCWD, "./18/cgroup.cpu", [pid 5836] newfstatat(AT_FDCWD, "./17/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5834] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6157] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5836] unlink("./17/cgroup.cpu" [pid 5834] unlink("./18/cgroup.cpu" [pid 6157] <... openat resumed>) = 4 [pid 6153] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5836] <... unlink resumed>) = 0 [pid 5834] <... unlink resumed>) = 0 [pid 6157] ioctl(4, LOOP_SET_FD, 3 [pid 5834] umount2("./18/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5836] umount2("./17/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5836] newfstatat(AT_FDCWD, "./17/cgroup.net", [pid 5834] newfstatat(AT_FDCWD, "./18/cgroup.net", [pid 5836] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5834] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5836] unlink("./17/cgroup.net" [pid 5834] unlink("./18/cgroup.net" [pid 5836] <... unlink resumed>) = 0 [pid 5836] umount2("./17/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5834] <... unlink resumed>) = 0 [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5834] umount2("./18/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5836] newfstatat(AT_FDCWD, "./17/binderfs", [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6157] <... ioctl resumed>) = 0 [pid 6153] <... write resumed>) = 524288 [pid 5836] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5834] newfstatat(AT_FDCWD, "./18/binderfs", [pid 6157] close(3 [pid 6153] munmap(0x7f0d62800000, 138412032 [pid 5836] unlink("./17/binderfs" [pid 5834] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6157] <... close resumed>) = 0 [pid 6153] <... munmap resumed>) = 0 [pid 5836] <... unlink resumed>) = 0 [pid 5834] unlink("./18/binderfs" [pid 6157] close(4 [pid 6153] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5836] umount2("./17/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6157] <... close resumed>) = 0 [pid 6153] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6157] mkdir("./file2", 0777 [pid 6153] close(5 [pid 6157] <... mkdir resumed>) = 0 [ 117.132241][ T6157] loop0: detected capacity change from 0 to 2048 [pid 6157] mount("/dev/loop0", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 6153] <... close resumed>) = 0 [pid 6153] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5834] <... unlink resumed>) = 0 [pid 6153] <... futex resumed>) = 1 [pid 5834] umount2("./18/file2", MNT_FORCE|UMOUNT_NOFOLLOW [ 117.174186][ T6157] NILFS (loop0): broken superblock, retrying with spare superblock (blocksize = 1024) [ 117.188980][ T6147] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 117.202103][ T6147] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6153] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6150] <... futex resumed>) = 0 [pid 6150] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6153] <... futex resumed>) = 0 [pid 6150] <... futex resumed>) = 1 [pid 6153] fsync(-1 [pid 6150] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6153] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 6153] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6150] <... futex resumed>) = 0 [pid 6153] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6150] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6153] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6150] <... futex resumed>) = 0 [pid 6153] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6150] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6153] <... openat resumed>) = 5 [pid 6153] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6150] <... futex resumed>) = 0 [pid 6153] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6150] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6153] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6150] <... futex resumed>) = 0 [pid 6153] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [ 117.215078][ T6144] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 117.227477][ T6147] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 117.237474][ T6144] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 117.256227][ T5838] udevd[5838]: incorrect nilfs2 checksum on /dev/loop0 [ 117.260507][ T6154] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 117.272592][ T6144] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 117.277545][ T6159] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 117.286659][ T6144] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 117.299349][ T6147] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6150] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6151] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 6150] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6150] futex(0x7f0d6aef46dc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6151] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6157] <... mount resumed>) = 0 [pid 6151] <... futex resumed>) = 0 [pid 6148] close(3 [pid 6157] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 6151] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6148] <... close resumed>) = 0 [pid 6157] <... openat resumed>) = 3 [pid 6148] close(4 [pid 6157] chdir("./file2" [pid 6148] <... close resumed>) = 0 [pid 6157] <... chdir resumed>) = 0 [pid 6148] close(5 [pid 6157] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6148] <... close resumed>) = 0 [pid 6157] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6148] close(6 [pid 6157] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6148] <... close resumed>) = 0 [pid 6157] <... futex resumed>) = 1 [pid 6155] <... futex resumed>) = 0 [pid 6148] close(7 [pid 6157] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6155] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6148] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6157] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6155] <... futex resumed>) = 0 [pid 6148] close(8 [pid 6157] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 6155] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6148] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6157] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 6148] close(9 [pid 6157] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6148] <... close resumed>) = -1 EBADF (Bad file descriptor) [ 117.309106][ T6144] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 117.332353][ T6144] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 117.344209][ T6144] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 117.346016][ T6156] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6157] <... futex resumed>) = 1 [pid 6155] <... futex resumed>) = 0 [pid 6150] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6148] close(10 [pid 6157] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6155] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6148] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6157] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6155] <... futex resumed>) = 0 [pid 6150] <... mmap resumed>) = 0x7f0d6adde000 [pid 6148] close(11 [pid 6157] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 6155] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6150] mprotect(0x7f0d6addf000, 131072, PROT_READ|PROT_WRITE [pid 6148] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6157] <... openat resumed>) = 4 [pid 6150] <... mprotect resumed>) = 0 [pid 6148] close(12 [pid 6157] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6150] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6148] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6157] <... futex resumed>) = 1 [pid 6155] <... futex resumed>) = 0 [pid 6150] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6148] close(13 [pid 6157] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6155] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6150] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6adfe990, parent_tid=0x7f0d6adfe990, exit_signal=0, stack=0x7f0d6adde000, stack_size=0x20300, tls=0x7f0d6adfe6c0} [pid 6148] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6157] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6155] <... futex resumed>) = 0 [pid 6148] close(14 [pid 6157] read(-1, [pid 6155] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6150] <... clone3 resumed> => {parent_tid=[44]}, 88) = 44 [pid 6148] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6157] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 6150] rt_sigprocmask(SIG_SETMASK, [], [pid 6148] close(15./strace-static-x86_64: Process 6160 attached [pid 6157] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6150] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6157] <... futex resumed>) = 1 [pid 6155] <... futex resumed>) = 0 [pid 6150] futex(0x7f0d6aef46d8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6148] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6157] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6155] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6150] <... futex resumed>) = 0 [pid 6148] close(16 [pid 6157] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6155] <... futex resumed>) = 0 [pid 6150] futex(0x7f0d6aef46dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6148] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6157] memfd_create("syzkaller", 0 [pid 6155] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6157] <... memfd_create resumed>) = 5 [pid 6148] close(17 [pid 6157] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 [pid 6148] <... close resumed>) = -1 EBADF (Bad file descriptor) [ 117.355304][ T6144] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 117.376626][ T6144] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 117.387770][ T6144] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 117.398864][ T6144] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 117.409825][ T6144] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6157] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 6148] close(18 [pid 6160] rseq(0x7f0d6adfefe0, 0x20, 0, 0x53053053 [pid 6157] <... write resumed>) = 524288 [pid 6148] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6148] close(19 [pid 6160] <... rseq resumed>) = 0 [pid 6157] munmap(0x7f0d62800000, 138412032 [pid 6153] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 6148] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6160] set_robust_list(0x7f0d6adfe9a0, 24 [pid 6157] <... munmap resumed>) = 0 [pid 6153] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6148] close(20 [pid 6160] <... set_robust_list resumed>) = 0 [pid 6157] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6153] <... futex resumed>) = 0 [pid 6148] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6160] rt_sigprocmask(SIG_SETMASK, [], [pid 6157] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6153] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6148] close(21 [pid 6160] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6157] close(5 [pid 6148] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6160] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 6157] <... close resumed>) = 0 [pid 6160] <... openat resumed>) = 6 [pid 6157] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6148] close(22 [pid 6160] futex(0x7f0d6aef46dc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6157] <... futex resumed>) = 1 [pid 6155] <... futex resumed>) = 0 [pid 6160] <... futex resumed>) = 1 [pid 6150] <... futex resumed>) = 0 [pid 6148] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6160] futex(0x7f0d6aef46d8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6157] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6155] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6150] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6148] close(23 [pid 6157] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6155] <... futex resumed>) = 0 [pid 6153] <... futex resumed>) = 0 [pid 6150] <... futex resumed>) = 1 [pid 6148] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6157] fsync(-1 [pid 6155] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6153] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 6150] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6148] close(24 [pid 6157] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 6148] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6157] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6148] close(25 [pid 6157] <... futex resumed>) = 1 [pid 6155] <... futex resumed>) = 0 [pid 6148] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6157] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6155] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6148] close(26 [pid 6157] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6155] <... futex resumed>) = 0 [pid 6148] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6157] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6155] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6157] <... openat resumed>) = 5 [pid 6148] close(27 [pid 6157] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6148] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6157] <... futex resumed>) = 1 [pid 6155] <... futex resumed>) = 0 [pid 6148] close(28 [pid 6157] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 6155] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6148] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6155] <... futex resumed>) = 0 [pid 6148] close(29 [pid 6155] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6148] <... close resumed>) = -1 EBADF (Bad file descriptor) [ 117.421016][ T6144] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 117.431883][ T6144] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 117.442912][ T6144] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 117.454190][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6148] exit_group(0 [pid 6151] <... futex resumed>) = ? [pid 6148] <... exit_group resumed>) = ? [pid 6151] +++ exited with 0 +++ [pid 6148] +++ exited with 0 +++ [pid 5835] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=39, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 5835] umount2("./17", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5835] openat(AT_FDCWD, "./17", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5835] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 5835] getdents64(3, 0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 5835] umount2("./17/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5835] newfstatat(AT_FDCWD, "./17/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5835] unlink("./17/cgroup") = 0 [pid 5835] umount2("./17/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5835] newfstatat(AT_FDCWD, "./17/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5835] unlink("./17/cgroup.cpu") = 0 [pid 5835] umount2("./17/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5835] newfstatat(AT_FDCWD, "./17/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5835] unlink("./17/cgroup.net") = 0 [pid 5835] umount2("./17/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5835] newfstatat(AT_FDCWD, "./17/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5835] unlink("./17/binderfs") = 0 [pid 6155] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6155] futex(0x7f0d6aef46dc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5835] umount2("./17/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6155] <... futex resumed>) = 0 [pid 6155] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0d6adde000 [pid 6155] mprotect(0x7f0d6addf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6155] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6155] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6adfe990, parent_tid=0x7f0d6adfe990, exit_signal=0, stack=0x7f0d6adde000, stack_size=0x20300, tls=0x7f0d6adfe6c0} => {parent_tid=[48]}, 88) = 48 [ 117.465566][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 117.476624][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 117.483905][ T6159] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 117.487608][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 117.509037][ T5834] NILFS (loop1): disposed unprocessed dirty file(s) when stopping log writer [pid 6155] rt_sigprocmask(SIG_SETMASK, [], ./strace-static-x86_64: Process 6161 attached NULL, 8) = 0 [pid 6155] futex(0x7f0d6aef46d8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6155] futex(0x7f0d6aef46dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6157] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 6150] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6157] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 117.529830][ T6147] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 117.542793][ T6147] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 117.558521][ T6147] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6157] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6161] rseq(0x7f0d6adfefe0, 0x20, 0, 0x53053053 [pid 5834] <... umount2 resumed>) = 0 [pid 5834] umount2("./18/file2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5834] newfstatat(AT_FDCWD, "./18/file2", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5834] umount2("./18/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6155] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6155] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5834] openat(AT_FDCWD, "./18/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6157] <... futex resumed>) = 0 [pid 6155] <... futex resumed>) = 1 [pid 5834] <... openat resumed>) = 4 [pid 6157] pwritev2(-1, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 6155] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5834] newfstatat(4, "", [pid 6157] <... pwritev2 resumed>) = -1 EBADF (Bad file descriptor) [pid 5834] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 6157] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5834] getdents64(4, [pid 6157] <... futex resumed>) = 1 [pid 6155] <... futex resumed>) = 0 [pid 5834] <... getdents64 resumed>0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 6161] <... rseq resumed>) = 0 [pid 6157] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5834] getdents64(4, 0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 5834] close(4) = 0 [ 117.570604][ T6154] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5834] rmdir("./18/file2") = 0 [pid 5834] getdents64(3, 0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 5834] close(3) = 0 [pid 5834] rmdir("./18") = 0 [pid 6161] set_robust_list(0x7f0d6adfe9a0, 24 [pid 5834] mkdir("./19", 0777 [pid 6161] <... set_robust_list resumed>) = 0 [pid 5834] <... mkdir resumed>) = 0 [pid 5834] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5834] ioctl(3, LOOP_CLR_FD) = 0 [pid 5834] close(3 [ 117.602751][ T6154] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 117.621352][ T6147] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6161] rt_sigprocmask(SIG_SETMASK, [], [pid 5834] <... close resumed>) = 0 [pid 6161] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5834] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6162 attached [pid 6161] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 6153] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 6162] set_robust_list(0x55555fa3c6a0, 24 [pid 5834] <... clone resumed>, child_tidptr=0x55555fa3c690) = 48 [ 117.647211][ T6147] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 117.647897][ T6154] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 117.670142][ T6147] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 117.681406][ T6156] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 117.685614][ T6154] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6162] <... set_robust_list resumed>) = 0 [pid 6162] chdir("./19") = 0 [pid 6162] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6162] setpgid(0, 0) = 0 [pid 6162] symlink("/syzcgroup/unified/syz1", "./cgroup"executing program ) = 0 [pid 6161] <... openat resumed>) = 6 [pid 6153] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6150] close(3 [pid 6162] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu") = 0 [pid 6162] symlink("/syzcgroup/net/syz1", "./cgroup.net") = 0 [pid 6162] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6162] write(3, "1000", 4) = 4 [pid 6162] close(3) = 0 [pid 6162] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6162] write(1, "executing program\n", 18) = 18 [pid 6162] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6162] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, NULL, 8) = 0 [pid 6162] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6162] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0d6adff000 [pid 6162] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6162] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6162] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0}./strace-static-x86_64: Process 6163 attached [pid 6163] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 6162] <... clone3 resumed> => {parent_tid=[49]}, 88) = 49 [pid 6163] <... rseq resumed>) = 0 [pid 6162] rt_sigprocmask(SIG_SETMASK, [], [pid 6163] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 6162] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6163] <... set_robust_list resumed>) = 0 [pid 6162] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6163] rt_sigprocmask(SIG_SETMASK, [], [pid 6162] <... futex resumed>) = 0 [pid 6163] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6162] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6163] memfd_create("syzkaller", 0 [pid 6161] futex(0x7f0d6aef46dc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6153] <... futex resumed>) = 0 [pid 6150] <... close resumed>) = 0 [pid 6163] <... memfd_create resumed>) = 3 [pid 6163] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 [pid 6161] <... futex resumed>) = 0 [pid 6153] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6150] close(4 [pid 6161] futex(0x7f0d6aef46d8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6155] close(3 [pid 6150] <... close resumed>) = 0 [pid 6155] <... close resumed>) = 0 [pid 6150] close(5 [pid 6155] close(4 [pid 6150] <... close resumed>) = 0 [pid 6155] <... close resumed>) = 0 [pid 6150] close(6 [pid 6155] close(5 [pid 6150] <... close resumed>) = 0 [pid 6155] <... close resumed>) = 0 [pid 6150] close(7 [pid 6155] close(6 [pid 6150] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6155] <... close resumed>) = 0 [pid 6150] close(8 [pid 6155] close(7 [pid 6150] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6155] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6150] close(9 [pid 6155] close(8 [pid 6150] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6155] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6150] close(10 [pid 6155] close(9 [pid 6150] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6155] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6150] close(11 [pid 6155] close(10 [pid 6150] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6155] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6150] close(12 [pid 6155] close(11 [pid 6150] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6155] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6150] close(13 [pid 6155] close(12 [pid 6150] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6155] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6150] close(14 [pid 6155] close(13 [pid 6150] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6155] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6150] close(15 [pid 6155] close(14 [pid 6150] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6155] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6150] close(16 [pid 6155] close(15 [pid 6150] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6155] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6150] close(17 [pid 6155] close(16 [pid 6150] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6155] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6150] close(18 [pid 6155] close(17 [pid 6150] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6155] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6150] close(19 [pid 6155] close(18 [pid 6150] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6163] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6155] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6150] close(20 [pid 6155] close(19 [pid 6150] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6155] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6150] close(21 [pid 6155] close(20 [pid 6150] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6155] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6150] close(22 [pid 6155] close(21 [pid 6150] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6155] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6150] close(23 [pid 6155] close(22 [pid 6150] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6155] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6150] close(24 [pid 6155] close(23 [pid 6150] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6155] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6150] close(25 [pid 6155] close(24 [pid 6150] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6155] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6150] close(26 [pid 6155] close(25 [pid 6150] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6155] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6150] close(27 [pid 6155] close(26 [pid 6150] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6155] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6150] close(28 [pid 6155] close(27 [pid 6150] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6155] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6150] close(29 [pid 6155] close(28 [pid 6150] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6155] <... close resumed>) = -1 EBADF (Bad file descriptor) [ 117.703611][ T6147] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 117.716998][ T6154] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 117.729958][ T6147] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6150] exit_group(0 [pid 6155] close(29 [pid 6153] <... futex resumed>) = ? [pid 6150] <... exit_group resumed>) = ? [pid 6155] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6153] +++ exited with 0 +++ [pid 6155] exit_group(0 [pid 6161] <... futex resumed>) = ? [pid 6155] <... exit_group resumed>) = ? [pid 6161] +++ exited with 0 +++ [pid 6163] <... write resumed>) = 1048576 [pid 6160] <... futex resumed>) = ? [pid 6157] <... futex resumed>) = ? [pid 6160] +++ exited with 0 +++ [pid 6150] +++ exited with 0 +++ [pid 6163] munmap(0x7f0d62800000, 138412032) = 0 [pid 6163] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [ 117.759847][ T6154] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 117.770641][ T6147] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 117.771629][ T6154] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 117.790969][ T6163] loop1: detected capacity change from 0 to 2048 [ 117.793198][ T6154] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6163] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6157] +++ exited with 0 +++ [pid 6155] +++ exited with 0 +++ [pid 5837] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=42, si_uid=0, si_status=0, si_utime=0, si_stime=26 /* 0.26 s */} --- [ 117.802413][ T6147] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 117.809762][ T6154] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 117.821130][ T6147] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 117.841840][ T6154] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6163] close(3) = 0 [pid 5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=46, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 6163] close(4 [pid 5837] umount2("./18", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6163] <... close resumed>) = 0 [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6163] mkdir("./file2", 0777 [pid 5837] openat(AT_FDCWD, "./18", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5833] umount2("./18", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6163] <... mkdir resumed>) = 0 [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6163] mount("/dev/loop1", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 5837] <... openat resumed>) = 3 [ 117.843196][ T5836] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 117.854163][ T6154] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 117.865199][ T5836] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 117.876131][ T6154] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 117.898548][ T6163] NILFS (loop1): broken superblock, retrying with spare superblock (blocksize = 1024) [pid 5833] openat(AT_FDCWD, "./18", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6163] <... mount resumed>) = 0 [pid 5837] newfstatat(3, "", [pid 5833] <... openat resumed>) = 3 [ 117.904027][ T6154] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 117.910915][ T5836] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 117.924182][ T5838] udevd[5838]: incorrect nilfs2 checksum on /dev/loop1 [ 117.936125][ T6164] NILFS (loop1): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 117.936399][ T5836] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6163] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5837] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 5833] newfstatat(3, "", [pid 6163] <... openat resumed>) = 3 [pid 5837] getdents64(3, [pid 5833] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 6163] chdir("./file2" [pid 5837] <... getdents64 resumed>0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 6163] <... chdir resumed>) = 0 [pid 5833] getdents64(3, [pid 6163] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5837] umount2("./18/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5833] <... getdents64 resumed>0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5833] umount2("./18/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5837] newfstatat(AT_FDCWD, "./18/cgroup", [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6163] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5837] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] newfstatat(AT_FDCWD, "./18/cgroup", [pid 6163] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] unlink("./18/cgroup" [pid 6163] <... futex resumed>) = 1 [pid 6162] <... futex resumed>) = 0 [pid 5837] <... unlink resumed>) = 0 [pid 5833] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6163] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5837] umount2("./18/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5833] unlink("./18/cgroup" [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6162] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] newfstatat(AT_FDCWD, "./18/cgroup.cpu", [pid 5833] <... unlink resumed>) = 0 [pid 6163] <... futex resumed>) = 0 [pid 6162] <... futex resumed>) = 1 [pid 5837] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] umount2("./18/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6163] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 5837] unlink("./18/cgroup.cpu" [pid 6163] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6163] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6162] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5837] <... unlink resumed>) = 0 [pid 5833] newfstatat(AT_FDCWD, "./18/cgroup.cpu", [pid 6163] <... futex resumed>) = 0 [pid 5837] umount2("./18/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5833] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6163] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5833] unlink("./18/cgroup.cpu" [pid 5837] newfstatat(AT_FDCWD, "./18/cgroup.net", [pid 6162] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5837] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] <... unlink resumed>) = 0 [pid 5837] unlink("./18/cgroup.net" [pid 5833] umount2("./18/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6162] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] <... unlink resumed>) = 0 [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5837] umount2("./18/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6163] <... futex resumed>) = 0 [pid 6162] <... futex resumed>) = 1 [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./18/cgroup.net", [pid 6163] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 5837] newfstatat(AT_FDCWD, "./18/binderfs", [pid 5833] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6163] <... openat resumed>) = 4 [pid 6162] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5837] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./18/cgroup.net" [pid 6163] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] unlink("./18/binderfs" [pid 6163] <... futex resumed>) = 0 [pid 6162] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5837] <... unlink resumed>) = 0 [pid 5833] <... unlink resumed>) = 0 [pid 6163] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5837] umount2("./18/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6162] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 117.954138][ T6154] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 117.962516][ T5836] NILFS (loop2): disposed unprocessed dirty file(s) when stopping log writer [ 117.976934][ T6154] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 117.988484][ T5835] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6162] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6163] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5833] umount2("./18/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6163] read(-1, [pid 5836] <... umount2 resumed>) = 0 [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6163] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 5836] umount2("./17/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5833] newfstatat(AT_FDCWD, "./18/binderfs", [pid 6163] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5833] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6163] <... futex resumed>) = 1 [pid 5836] newfstatat(AT_FDCWD, "./17/file2", [pid 5833] unlink("./18/binderfs" [pid 6163] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5836] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] <... unlink resumed>) = 0 [pid 5836] umount2("./17/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5833] umount2("./18/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 118.014877][ T6156] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 118.016950][ T5835] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 118.037681][ T6156] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 118.038902][ T5835] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5836] openat(AT_FDCWD, "./17/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6162] <... futex resumed>) = 0 [pid 5836] <... openat resumed>) = 4 [pid 5836] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 5836] getdents64(4, 0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 5836] getdents64(4, 0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 5836] close(4) = 0 [pid 5836] rmdir("./17/file2") = 0 [pid 5836] getdents64(3, 0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 5836] close(3) = 0 [pid 5836] rmdir("./17") = 0 [pid 5836] mkdir("./18", 0777) = 0 [pid 5836] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5836] ioctl(3, LOOP_CLR_FD) = 0 [pid 5836] close(3 [pid 6162] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6163] <... futex resumed>) = 0 [pid 6162] <... futex resumed>) = 1 [pid 6163] memfd_create("syzkaller", 0 [pid 6162] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6163] <... memfd_create resumed>) = 5 [pid 6163] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 [pid 6163] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [ 118.056583][ T6156] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 118.060697][ T5835] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 118.082848][ T5835] NILFS (loop3): disposed unprocessed dirty file(s) when stopping log writer [ 118.083076][ T6159] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6163] munmap(0x7f0d62800000, 138412032) = 0 [pid 6163] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6163] close(5) = 0 [pid 5836] <... close resumed>) = 0 [pid 5835] <... umount2 resumed>) = 0 [pid 5835] umount2("./17/file2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5835] newfstatat(AT_FDCWD, "./17/file2", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [ 118.130815][ T6156] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 118.154672][ T6156] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 118.162859][ T6159] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6163] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6162] <... futex resumed>) = 0 [pid 5836] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5835] umount2("./17/file2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5835] openat(AT_FDCWD, "./17/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5835] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 5835] getdents64(4, 0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 5835] getdents64(4, 0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 5835] close(4) = 0 [pid 6163] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6162] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5835] rmdir("./17/file2"./strace-static-x86_64: Process 6165 attached [pid 6163] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6162] <... futex resumed>) = 0 [pid 5835] <... rmdir resumed>) = 0 [pid 6165] set_robust_list(0x55555fa3c6a0, 24 [pid 6163] fsync(-1 [pid 6162] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5836] <... clone resumed>, child_tidptr=0x55555fa3c690) = 44 [pid 5835] getdents64(3, [pid 6165] <... set_robust_list resumed>) = 0 [pid 6163] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 5835] <... getdents64 resumed>0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 6165] chdir("./18" [pid 6163] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5835] close(3 [pid 6165] <... chdir resumed>) = 0 [pid 6163] <... futex resumed>) = 1 [pid 6162] <... futex resumed>) = 0 [pid 5835] <... close resumed>) = 0 [pid 6165] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6163] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6162] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5835] rmdir("./17" [pid 6165] <... prctl resumed>) = 0 [pid 6163] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6162] <... futex resumed>) = 0 [pid 6165] setpgid(0, 0 [pid 6163] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6162] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5835] <... rmdir resumed>) = 0 [pid 6165] <... setpgid resumed>) = 0 [pid 6163] <... openat resumed>) = 5 [pid 5835] mkdir("./18", 0777executing program [pid 6165] symlink("/syzcgroup/unified/syz2", "./cgroup" [pid 6163] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5835] <... mkdir resumed>) = 0 [pid 6165] <... symlink resumed>) = 0 [pid 6163] <... futex resumed>) = 1 [pid 6162] <... futex resumed>) = 0 [pid 5835] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6165] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu" [pid 6163] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 6162] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5835] <... openat resumed>) = 3 [pid 6165] <... symlink resumed>) = 0 [pid 6162] <... futex resumed>) = 0 [pid 5835] ioctl(3, LOOP_CLR_FD [pid 6165] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 6162] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5835] <... ioctl resumed>) = 0 [pid 6165] <... symlink resumed>) = 0 [pid 5835] close(3 [pid 6165] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6165] write(3, "1000", 4) = 4 [pid 6165] close(3) = 0 [pid 6165] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6165] write(1, "executing program\n", 18) = 18 [pid 6165] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6165] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, NULL, 8) = 0 [pid 6165] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [ 118.177570][ T6156] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 118.193263][ T6156] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 118.214673][ T6164] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6165] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0d6adff000 [pid 5835] <... close resumed>) = 0 [pid 6165] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5835] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6165] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 ./strace-static-x86_64: Process 6166 attached [pid 6163] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 6163] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6162] <... futex resumed>) = 0 [pid 6163] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6162] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6163] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6162] <... futex resumed>) = 0 [pid 6163] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 6162] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6165] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0}./strace-static-x86_64: Process 6167 attached [pid 6166] set_robust_list(0x55555fa3c6a0, 24 [pid 5835] <... clone resumed>, child_tidptr=0x55555fa3c690) = 41 [pid 6166] <... set_robust_list resumed>) = 0 [pid 6166] chdir("./18") = 0 [pid 6166] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6166] setpgid(0, 0) = 0 [pid 6166] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 6167] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 6165] <... clone3 resumed> => {parent_tid=[45]}, 88) = 45 [pid 6167] <... rseq resumed>) = 0 [pid 6165] rt_sigprocmask(SIG_SETMASK, [], [pid 6166] <... symlink resumed>) = 0 [pid 6167] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 6165] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6167] <... set_robust_list resumed>) = 0 [pid 6165] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6167] rt_sigprocmask(SIG_SETMASK, [], [pid 6165] <... futex resumed>) = 0 [pid 6167] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6166] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 6165] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6166] <... symlink resumed>) = 0 [pid 6167] memfd_create("syzkaller", 0 [pid 6166] symlink("/syzcgroup/net/syz3", "./cgroup.net") = 0 [pid 6163] <... openat resumed>) = 6 [pid 6166] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6163] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6166] <... openat resumed>) = 3 [pid 6163] <... futex resumed>) = 1 [pid 6162] <... futex resumed>) = 0 [pid 6166] write(3, "1000", 4 [pid 6163] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 6162] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6166] <... write resumed>) = 4 [pid 6162] <... futex resumed>) = 0 [pid 6167] <... memfd_create resumed>) = 3 [pid 6166] close(3 [pid 6167] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [ 118.217300][ T6156] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 118.241959][ T6159] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 118.244728][ T6156] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 118.269119][ T6156] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6162] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}executing program [pid 6167] <... mmap resumed>) = 0x7f0d62800000 [pid 6166] <... close resumed>) = 0 [pid 6167] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6166] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6166] write(1, "executing program\n", 18) = 18 [pid 6166] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6166] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, NULL, 8) = 0 [pid 6166] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6166] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0d6adff000 [pid 6166] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6166] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6166] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0}./strace-static-x86_64: Process 6169 attached [pid 6169] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 6166] <... clone3 resumed> => {parent_tid=[42]}, 88) = 42 [pid 6169] <... rseq resumed>) = 0 [pid 6166] rt_sigprocmask(SIG_SETMASK, [], [pid 6169] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 6166] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6169] <... set_robust_list resumed>) = 0 [pid 6166] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6169] rt_sigprocmask(SIG_SETMASK, [], [pid 6166] <... futex resumed>) = 0 [pid 6169] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6166] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6169] memfd_create("syzkaller", 0) = 3 [pid 6169] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 [ 118.290321][ T6156] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 118.308521][ T6159] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 118.309728][ T6156] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6162] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6169] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6167] <... write resumed>) = 1048576 [pid 6167] munmap(0x7f0d62800000, 138412032) = 0 [pid 6167] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [ 118.340057][ T6156] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 118.351993][ T6159] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 118.352702][ T6156] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 118.375285][ T6156] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 118.376688][ T6167] loop2: detected capacity change from 0 to 2048 [ 118.388707][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 118.406024][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 118.417353][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 118.424647][ T6169] loop3: detected capacity change from 0 to 2048 [pid 6167] ioctl(4, LOOP_SET_FD, 3 [pid 6169] <... write resumed>) = 1048576 [pid 6167] <... ioctl resumed>) = 0 [pid 6169] munmap(0x7f0d62800000, 138412032) = 0 [pid 6169] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 6169] ioctl(4, LOOP_SET_FD, 3 [pid 6167] close(3) = 0 [pid 6167] close(4) = 0 [pid 6167] mkdir("./file2", 0777) = 0 [pid 6167] mount("/dev/loop2", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 6169] <... ioctl resumed>) = 0 [pid 6169] close(3) = 0 [pid 6169] close(4) = 0 [ 118.430159][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 118.450764][ T5837] NILFS (loop4): disposed unprocessed dirty file(s) when stopping log writer [ 118.457314][ T6167] NILFS (loop2): broken superblock, retrying with spare superblock (blocksize = 1024) [ 118.481817][ T6159] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 118.493805][ T5833] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 118.497296][ T5838] udevd[5838]: incorrect nilfs2 checksum on /dev/loop2 [ 118.505274][ T5833] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 118.523342][ T6169] NILFS (loop3): broken superblock, retrying with spare superblock (blocksize = 1024) [pid 6169] mkdir("./file2", 0777) = 0 [pid 5837] <... umount2 resumed>) = 0 [pid 6169] mount("/dev/loop3", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 5837] umount2("./18/file2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5837] newfstatat(AT_FDCWD, "./18/file2", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5837] umount2("./18/file2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5837] openat(AT_FDCWD, "./18/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5837] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 5837] getdents64(4, 0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 5837] getdents64(4, 0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 5837] close(4) = 0 [pid 5837] rmdir("./18/file2") = 0 [pid 5837] getdents64(3, 0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 5837] close(3) = 0 [pid 5837] rmdir("./18") = 0 [pid 5837] mkdir("./19", 0777) = 0 [pid 5837] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5837] ioctl(3, LOOP_CLR_FD) = 0 [ 118.535349][ T5833] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 118.546410][ T5833] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 118.559394][ T5833] NILFS (loop0): disposed unprocessed dirty file(s) when stopping log writer [ 118.573062][ T6170] NILFS (loop3): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 5837] close(3) = 0 [pid 6169] <... mount resumed>) = 0 [pid 6169] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY) = 3 [pid 6169] chdir("./file2") = 0 [pid 6169] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6169] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6166] <... futex resumed>) = 0 [pid 6169] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6166] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6169] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6166] <... futex resumed>) = 0 [pid 6169] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 6167] <... mount resumed>) = 0 [pid 6166] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6169] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 6167] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5837] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6169] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6167] <... openat resumed>) = 3 [pid 5833] <... umount2 resumed>) = 0 ./strace-static-x86_64: Process 6172 attached [pid 6169] <... futex resumed>) = 1 [pid 6167] chdir("./file2" [pid 6166] <... futex resumed>) = 0 [pid 6172] set_robust_list(0x55555fa3c6a0, 24 [pid 6169] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6167] <... chdir resumed>) = 0 [pid 6166] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] <... clone resumed>, child_tidptr=0x55555fa3c690) = 45 [pid 5833] umount2("./18/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6172] <... set_robust_list resumed>) = 0 [pid 6169] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6167] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 6166] <... futex resumed>) = 0 [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6172] chdir("./19" [pid 6169] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 6167] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6166] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5833] newfstatat(AT_FDCWD, "./18/file2", [pid 6172] <... chdir resumed>) = 0 [pid 6169] <... openat resumed>) = 4 [pid 6167] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6172] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5833] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6172] <... prctl resumed>) = 0 [pid 6169] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6167] <... futex resumed>) = 1 [pid 6165] <... futex resumed>) = 0 [pid 5833] umount2("./18/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6172] setpgid(0, 0 [pid 6169] <... futex resumed>) = 1 [pid 6167] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6166] <... futex resumed>) = 0 [pid 6165] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6169] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6167] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6166] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6165] <... futex resumed>) = 0 [pid 5833] openat(AT_FDCWD, "./18/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6169] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6167] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 6166] <... futex resumed>) = 0 [pid 6172] <... setpgid resumed>) = 0 [pid 6169] read(-1, [pid 6165] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5833] <... openat resumed>) = 4 [pid 6172] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 6169] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 6167] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 6166] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [ 118.598339][ T6171] NILFS (loop2): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6172] <... symlink resumed>) = 0 [pid 6169] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6167] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6166] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5833] newfstatat(4, "", [pid 6167] <... futex resumed>) = 1 [pid 6165] <... futex resumed>) = 0 [pid 5833] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 6167] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6165] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5833] getdents64(4, [pid 6167] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6165] <... futex resumed>) = 0 [pid 6167] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 5833] <... getdents64 resumed>0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 6172] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 6169] <... futex resumed>) = 0 [pid 6167] <... openat resumed>) = 4 [pid 6166] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6165] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5833] getdents64(4, [pid 6172] <... symlink resumed>) = 0 [pid 6169] memfd_create("syzkaller", 0 [pid 6166] <... futex resumed>) = 0 [pid 6172] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 6169] <... memfd_create resumed>) = 5 [pid 6172] <... symlink resumed>) = 0 [pid 6166] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6169] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6172] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6169] <... mmap resumed>) = 0x7f0d62800000 [pid 6172] <... openat resumed>) = 3 [pid 6172] write(3, "1000", 4) = 4 [pid 6172] close(3) = 0 [pid 6172] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 6172] write(1, "executing program\n", 18) = 18 [pid 6163] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 6172] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6163] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6172] <... futex resumed>) = 0 [pid 6167] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6165] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6163] <... futex resumed>) = 0 [pid 6162] close(3 [pid 5833] <... getdents64 resumed>0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 6172] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, [pid 6167] <... futex resumed>) = 0 [pid 6165] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6163] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6162] <... close resumed>) = 0 [pid 5833] close(4 [pid 6172] <... rt_sigaction resumed>NULL, 8) = 0 [pid 6169] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 6167] read(-1, [pid 6165] <... futex resumed>) = 0 [pid 6162] close(4 [pid 5833] <... close resumed>) = 0 [pid 6172] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 6167] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 6165] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6162] <... close resumed>) = 0 [pid 5833] rmdir("./18/file2" [pid 6172] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6167] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6165] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6162] close(5 [pid 6172] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6167] <... futex resumed>) = 0 [pid 6165] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6162] <... close resumed>) = 0 [pid 5833] <... rmdir resumed>) = 0 [pid 6172] <... mmap resumed>) = 0x7f0d6adff000 [pid 6167] memfd_create("syzkaller", 0 [pid 6165] <... futex resumed>) = 0 [pid 6162] close(6 [pid 5833] getdents64(3, [pid 6172] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6167] <... memfd_create resumed>) = 5 [pid 6165] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6162] <... close resumed>) = 0 [pid 5833] <... getdents64 resumed>0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 6172] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6167] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6162] close(7 [pid 5833] close(3 [pid 6172] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6172] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0} [pid 6167] <... mmap resumed>) = 0x7f0d62800000 [pid 6162] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5833] <... close resumed>) = 0 ./strace-static-x86_64: Process 6174 attached [pid 6162] close(8 [pid 5833] rmdir("./18" [pid 6174] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 6172] <... clone3 resumed> => {parent_tid=[46]}, 88) = 46 [pid 6162] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6172] rt_sigprocmask(SIG_SETMASK, [], [pid 5833] <... rmdir resumed>) = 0 [pid 6174] <... rseq resumed>) = 0 [pid 6172] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6162] close(9 [pid 5833] mkdir("./19", 0777 [pid 6174] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 6172] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6162] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6174] <... set_robust_list resumed>) = 0 [pid 6172] <... futex resumed>) = 0 [pid 6174] rt_sigprocmask(SIG_SETMASK, [], [pid 6172] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6162] close(10 [pid 6174] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6162] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6174] memfd_create("syzkaller", 0 [pid 6162] close(11 [pid 6174] <... memfd_create resumed>) = 3 [pid 6169] <... write resumed>) = 524288 [pid 6167] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 6162] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5833] <... mkdir resumed>) = 0 [pid 6174] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6169] munmap(0x7f0d62800000, 138412032 [pid 6162] close(12 [pid 6169] <... munmap resumed>) = 0 [pid 6162] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5833] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6174] <... mmap resumed>) = 0x7f0d62800000 [pid 6162] close(13 [pid 5833] <... openat resumed>) = 3 [pid 6169] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6167] <... write resumed>) = 524288 [pid 6162] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6162] close(14) = -1 EBADF (Bad file descriptor) [pid 6162] close(15) = -1 EBADF (Bad file descriptor) [pid 6162] close(16) = -1 EBADF (Bad file descriptor) [pid 6162] close(17) = -1 EBADF (Bad file descriptor) [pid 6162] close(18) = -1 EBADF (Bad file descriptor) [pid 6162] close(19 [pid 5833] ioctl(3, LOOP_CLR_FD [pid 6162] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5833] <... ioctl resumed>) = 0 [pid 6162] close(20) = -1 EBADF (Bad file descriptor) [pid 6162] close(21) = -1 EBADF (Bad file descriptor) [pid 6162] close(22 [pid 5833] close(3 [pid 6174] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6169] <... openat resumed>) = -1 EBUSY (Device or resource busy) [ 118.672484][ T6164] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6167] munmap(0x7f0d62800000, 138412032 [pid 6162] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6169] close(5) = 0 [pid 6167] <... munmap resumed>) = 0 [pid 6169] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6167] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 6169] <... futex resumed>) = 1 [pid 6167] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6166] <... futex resumed>) = 0 [pid 6162] close(23 [pid 5833] <... close resumed>) = 0 [pid 6169] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6166] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6167] close(5 [pid 5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6162] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6169] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6166] <... futex resumed>) = 0 ./strace-static-x86_64: Process 6175 attached [pid 6167] <... close resumed>) = 0 [pid 6162] close(24) = -1 EBADF (Bad file descriptor) [pid 6162] close(25 [pid 6175] set_robust_list(0x55555fa3c6a0, 24 [pid 6162] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5833] <... clone resumed>, child_tidptr=0x55555fa3c690) = 49 [pid 6175] <... set_robust_list resumed>) = 0 [pid 6169] fsync(-1 [pid 6166] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6162] close(26 [pid 6169] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 6162] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6175] chdir("./19" [pid 6162] close(27 [pid 6169] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6162] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6175] <... chdir resumed>) = 0 [pid 6175] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6169] <... futex resumed>) = 1 [pid 6166] <... futex resumed>) = 0 [pid 6162] close(28 [pid 6175] <... prctl resumed>) = 0 [pid 6162] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6169] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6175] setpgid(0, 0 [pid 6166] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6175] <... setpgid resumed>) = 0 [pid 6169] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6162] close(29 [pid 6169] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6166] <... futex resumed>) = 0 [pid 6162] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6175] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 6166] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6169] <... openat resumed>) = 5 [pid 6162] exit_group(0 [pid 6175] <... symlink resumed>) = 0 [pid 6169] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6163] <... futex resumed>) = ? [pid 6162] <... exit_group resumed>) = ? [pid 6175] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 6169] <... futex resumed>) = 1 [pid 6166] <... futex resumed>) = 0 [pid 6163] +++ exited with 0 +++ [pid 6166] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6166] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6167] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6165] <... futex resumed>) = 0 [pid 6165] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6165] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6167] fsync(-1) = -1 EBADF (Bad file descriptor) [pid 6167] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6165] <... futex resumed>) = 0 [pid 6167] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6165] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6162] +++ exited with 0 +++ [pid 6167] <... futex resumed>) = 0 [pid 6165] <... futex resumed>) = 1 [pid 6167] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6175] <... symlink resumed>) = 0 [pid 6169] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 6165] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5834] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=48, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [pid 6167] <... openat resumed>) = 5 [pid 5834] restart_syscall(<... resuming interrupted clone ...> [pid 6175] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 6174] <... write resumed>) = 1048576 [pid 5834] <... restart_syscall resumed>) = 0 [pid 6175] <... symlink resumed>) = 0 [pid 6175] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5834] umount2("./19", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6167] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6175] <... openat resumed>) = 3 [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6175] write(3, "1000", 4 [pid 5834] openat(AT_FDCWD, "./19", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6175] <... write resumed>) = 4 [pid 6167] <... futex resumed>) = 1 [pid 5834] <... openat resumed>) = 3 [pid 6165] <... futex resumed>) = 0 [pid 6175] close(3 [pid 5834] newfstatat(3, "", [pid 6175] <... close resumed>) = 0 [pid 6165] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6175] symlink("/dev/binderfs", "./binderfs"executing program [pid 6165] <... futex resumed>) = 0 [pid 5834] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 6175] <... symlink resumed>) = 0 [pid 6167] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 6175] write(1, "executing program\n", 18 [pid 6165] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5834] getdents64(3, [pid 6175] <... write resumed>) = 18 [pid 6175] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5834] <... getdents64 resumed>0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 6175] <... futex resumed>) = 0 [pid 6174] munmap(0x7f0d62800000, 138412032 [pid 6175] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, [pid 5834] umount2("./19/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6175] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6175] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5834] newfstatat(AT_FDCWD, "./19/cgroup", [pid 6175] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5834] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6175] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5834] unlink("./19/cgroup" [pid 6175] <... mmap resumed>) = 0x7f0d6adff000 [pid 5834] <... unlink resumed>) = 0 [pid 6175] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE [pid 5834] umount2("./19/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6175] <... mprotect resumed>) = 0 [pid 6174] <... munmap resumed>) = 0 [pid 6169] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6175] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6174] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6169] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5834] newfstatat(AT_FDCWD, "./19/cgroup.cpu", [pid 6175] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6174] <... openat resumed>) = 4 [pid 6169] <... futex resumed>) = 1 [pid 5834] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6175] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0} [pid 6174] ioctl(4, LOOP_SET_FD, 3 [pid 6169] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5834] unlink("./19/cgroup.cpu"./strace-static-x86_64: Process 6176 attached [pid 6167] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 6166] <... futex resumed>) = 0 [pid 6176] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 6167] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6166] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6176] <... rseq resumed>) = 0 [pid 6167] <... futex resumed>) = 1 [pid 6166] <... futex resumed>) = 0 [pid 6176] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 6167] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6166] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6176] <... set_robust_list resumed>) = 0 [pid 6175] <... clone3 resumed> => {parent_tid=[50]}, 88) = 50 [pid 6174] <... ioctl resumed>) = 0 [pid 6169] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6165] <... futex resumed>) = 0 [pid 5834] <... unlink resumed>) = 0 [pid 6176] rt_sigprocmask(SIG_SETMASK, [], [pid 6175] rt_sigprocmask(SIG_SETMASK, [], [pid 6174] close(3 [pid 6169] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 6165] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5834] umount2("./19/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6176] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6175] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6174] <... close resumed>) = 0 [pid 6167] <... futex resumed>) = 0 [pid 6165] <... futex resumed>) = 1 [pid 6176] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6175] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6174] close(4 [pid 6169] <... openat resumed>) = 6 [pid 6167] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 6165] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6176] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6175] <... futex resumed>) = 0 [pid 6174] <... close resumed>) = 0 [pid 6169] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6176] memfd_create("syzkaller", 0 [pid 6175] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6174] mkdir("./file2", 0777 [pid 6169] <... futex resumed>) = 1 [pid 6167] <... openat resumed>) = 6 [pid 6166] <... futex resumed>) = 0 [pid 5834] newfstatat(AT_FDCWD, "./19/cgroup.net", [pid 6176] <... memfd_create resumed>) = 3 [pid 6174] <... mkdir resumed>) = 0 [pid 6169] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6167] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6166] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5834] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6176] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6174] mount("/dev/loop4", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 6169] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6167] <... futex resumed>) = 1 [pid 6166] <... futex resumed>) = 0 [pid 6165] <... futex resumed>) = 0 [ 118.768721][ T6170] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 118.790333][ T6171] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 118.797716][ T6174] loop4: detected capacity change from 0 to 2048 [pid 5834] unlink("./19/cgroup.net" [pid 6176] <... mmap resumed>) = 0x7f0d62800000 [pid 6169] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 6167] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6166] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6165] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6176] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5834] <... unlink resumed>) = 0 [pid 6176] <... write resumed>) = 1048576 [pid 6167] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6165] <... futex resumed>) = 0 [pid 5834] umount2("./19/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6176] munmap(0x7f0d62800000, 138412032 [pid 6167] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 6165] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5834] newfstatat(AT_FDCWD, "./19/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6176] <... munmap resumed>) = 0 [pid 5834] unlink("./19/binderfs") = 0 [pid 5834] umount2("./19/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6176] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6166] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [ 118.830950][ T6174] NILFS (loop4): broken superblock, retrying with spare superblock (blocksize = 1024) [ 118.866393][ T5838] udevd[5838]: incorrect nilfs2 checksum on /dev/loop4 [pid 6176] ioctl(4, LOOP_SET_FD, 3 [pid 6174] <... mount resumed>) = 0 [pid 6165] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [ 118.929810][ T6164] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 118.941607][ T6176] loop0: detected capacity change from 0 to 2048 [ 118.950113][ T6164] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 118.959643][ T6177] NILFS (loop4): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6174] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY) = 3 [pid 6176] <... ioctl resumed>) = 0 [pid 6176] close(3) = 0 [pid 6176] close(4) = 0 [pid 6176] mkdir("./file2", 0777) = 0 [pid 6176] mount("/dev/loop0", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 6174] chdir("./file2") = 0 [pid 6174] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6174] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6174] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6172] <... futex resumed>) = 0 [pid 6172] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6174] <... futex resumed>) = 0 [pid 6172] <... futex resumed>) = 1 [pid 6172] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6174] ioctl(-1, BTRFS_IOC_RM_DEV, NULL) = -1 EBADF (Bad file descriptor) [pid 6174] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6174] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6172] <... futex resumed>) = 0 [pid 6172] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6172] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6174] <... futex resumed>) = 0 [pid 6174] openat(AT_FDCWD, "/dev/cuse", O_RDWR) = 4 [pid 6174] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6172] <... futex resumed>) = 0 [pid 6172] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6174] read(-1, [pid 6172] <... futex resumed>) = 0 [pid 6174] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 6172] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [ 118.969857][ T6164] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 118.985497][ T6176] NILFS (loop0): broken superblock, retrying with spare superblock (blocksize = 1024) [ 119.018985][ T6178] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6174] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6172] <... futex resumed>) = 0 [pid 6174] memfd_create("syzkaller", 0 [pid 6172] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6174] <... memfd_create resumed>) = 5 [pid 6172] <... futex resumed>) = 0 [pid 6174] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 [pid 6174] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 6172] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6174] munmap(0x7f0d62800000, 138412032) = 0 [pid 6174] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6174] close(5) = 0 [pid 6174] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6176] <... mount resumed>) = 0 [pid 6169] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 6169] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6169] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6174] <... futex resumed>) = 1 [pid 6174] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6176] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY) = 3 [pid 6176] chdir("./file2") = 0 [pid 6166] close(3) = 0 [ 119.025289][ T6164] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 119.043917][ T6170] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 119.064099][ T6164] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6166] close(4) = 0 [pid 6176] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6172] <... futex resumed>) = 0 [pid 6176] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6176] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6166] close(5 [pid 6176] <... futex resumed>) = 1 [pid 6175] <... futex resumed>) = 0 [pid 6172] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6166] <... close resumed>) = 0 [pid 6174] <... futex resumed>) = 0 [pid 6172] <... futex resumed>) = 1 [pid 6166] close(6 [pid 6176] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6175] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6174] fsync(-1 [pid 6172] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6166] <... close resumed>) = 0 [pid 6176] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6175] <... futex resumed>) = 0 [pid 6174] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 6166] close(7 [pid 6176] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 6175] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6174] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6166] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6176] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 6174] <... futex resumed>) = 1 [pid 6172] <... futex resumed>) = 0 [pid 6166] close(8 [pid 6176] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6174] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6172] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6166] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6176] <... futex resumed>) = 1 [pid 6175] <... futex resumed>) = 0 [pid 6174] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6172] <... futex resumed>) = 0 [pid 6166] close(9 [pid 6176] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6175] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6174] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6172] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6166] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6176] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6175] <... futex resumed>) = 0 [pid 6166] close(10 [pid 6176] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 6175] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6166] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6176] <... openat resumed>) = 4 [pid 6166] close(11 [pid 6176] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6166] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6176] <... futex resumed>) = 1 [pid 6175] <... futex resumed>) = 0 [pid 6166] close(12 [pid 6176] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6175] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6166] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6176] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6175] <... futex resumed>) = 0 [pid 6166] close(13 [pid 6176] read(-1, [pid 6175] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6166] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6176] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 6166] close(14 [pid 6176] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6174] <... openat resumed>) = 5 [pid 6167] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 6166] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6176] <... futex resumed>) = 1 [pid 6175] <... futex resumed>) = 0 [pid 6174] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6166] close(15 [pid 6176] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6175] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6174] <... futex resumed>) = 1 [pid 6166] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6172] <... futex resumed>) = 0 [pid 6176] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6175] <... futex resumed>) = 0 [pid 6174] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6172] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6166] close(16 [pid 6176] memfd_create("syzkaller", 0 [pid 6175] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6174] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6172] <... futex resumed>) = 0 [pid 6166] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6176] <... memfd_create resumed>) = 5 [pid 6174] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 6172] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6176] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6166] close(17) = -1 EBADF (Bad file descriptor) [pid 6176] <... mmap resumed>) = 0x7f0d62800000 [pid 6167] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6166] close(18 [pid 6167] <... futex resumed>) = 0 [ 119.091617][ T6164] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 119.107539][ T6171] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 119.124591][ T6164] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6167] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6176] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 6174] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 6166] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6165] close(3 [pid 6166] close(19 [pid 6165] <... close resumed>) = 0 [pid 6166] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6165] close(4 [pid 6174] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6166] close(20 [pid 6176] <... write resumed>) = 524288 [pid 6172] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6166] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6165] <... close resumed>) = 0 [pid 6174] <... futex resumed>) = 0 [pid 6176] munmap(0x7f0d62800000, 138412032 [pid 6166] close(21 [pid 6165] close(5 [pid 6174] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 6172] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6166] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6165] <... close resumed>) = 0 [pid 6166] close(22 [pid 6165] close(6 [pid 6166] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6165] <... close resumed>) = 0 [pid 6166] close(23 [pid 6165] close(7 [pid 6166] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6165] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6172] <... futex resumed>) = 0 [pid 6166] close(24 [pid 6165] close(8 [pid 6166] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6172] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6165] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6166] close(25 [pid 6165] close(9 [pid 6166] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6165] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6174] <... openat resumed>) = 6 [pid 6166] close(26 [pid 6176] <... munmap resumed>) = 0 [pid 6174] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [ 119.127951][ T6177] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 119.141865][ T6164] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 119.161929][ T6164] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 119.179346][ T6164] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6174] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6176] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6172] <... futex resumed>) = 0 [pid 6166] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6165] close(10 [pid 6176] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6172] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6166] close(27 [pid 6176] close(5 [pid 6172] <... futex resumed>) = 1 [pid 6166] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6165] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6174] <... futex resumed>) = 0 [pid 6172] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6166] close(28 [pid 6165] close(11) = -1 EBADF (Bad file descriptor) [pid 6166] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6166] close(29) = -1 EBADF (Bad file descriptor) [pid 6174] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 6166] exit_group(0 [pid 6165] close(12) = -1 EBADF (Bad file descriptor) [pid 6176] <... close resumed>) = 0 [pid 6166] <... exit_group resumed>) = ? [pid 6176] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6165] close(13 [pid 6176] <... futex resumed>) = 1 [pid 6165] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6176] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6165] close(14) = -1 EBADF (Bad file descriptor) [pid 6165] close(15 [pid 6169] <... futex resumed>) = ? [pid 6165] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6175] <... futex resumed>) = 0 [pid 6175] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6169] +++ exited with 0 +++ [pid 6166] +++ exited with 0 +++ [pid 6165] close(16 [pid 6176] <... futex resumed>) = 0 [pid 6175] <... futex resumed>) = 1 [pid 6176] fsync(-1 [pid 6175] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6176] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 6176] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6175] <... futex resumed>) = 0 [pid 5835] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=41, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 6176] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6175] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6165] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6176] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6175] <... futex resumed>) = 0 [pid 6165] close(17 [pid 6176] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6175] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6165] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5835] umount2("./18", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6165] close(18 [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6176] <... openat resumed>) = 5 [pid 6165] <... close resumed>) = -1 EBADF (Bad file descriptor) [ 119.191273][ T6164] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 119.202577][ T6164] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 119.214431][ T6164] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 119.228760][ T6164] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5835] openat(AT_FDCWD, "./18", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6176] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6165] close(19 [pid 5835] <... openat resumed>) = 3 [pid 6176] <... futex resumed>) = 1 [pid 6175] <... futex resumed>) = 0 [pid 6176] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6175] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6176] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6175] <... futex resumed>) = 0 [pid 5835] newfstatat(3, "", [pid 6176] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 6175] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5835] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 5835] getdents64(3, [pid 6165] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5835] <... getdents64 resumed>0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 6165] close(20 [pid 5835] umount2("./18/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6165] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6165] close(21 [pid 5835] newfstatat(AT_FDCWD, "./18/cgroup", [pid 6165] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5835] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6165] close(22) = -1 EBADF (Bad file descriptor) [pid 6165] close(23 [pid 5835] unlink("./18/cgroup" [pid 6165] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5835] <... unlink resumed>) = 0 [pid 6165] close(24) = -1 EBADF (Bad file descriptor) [pid 6165] close(25) = -1 EBADF (Bad file descriptor) [pid 6165] close(26 [pid 5835] umount2("./18/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6165] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6165] close(27) = -1 EBADF (Bad file descriptor) [pid 5835] newfstatat(AT_FDCWD, "./18/cgroup.cpu", [pid 6165] close(28) = -1 EBADF (Bad file descriptor) [pid 5835] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6165] close(29 [pid 5835] unlink("./18/cgroup.cpu") = 0 [pid 6172] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6165] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5835] umount2("./18/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6165] exit_group(0 [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6167] <... futex resumed>) = ? [pid 6165] <... exit_group resumed>) = ? [pid 5835] newfstatat(AT_FDCWD, "./18/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5835] unlink("./18/cgroup.net" [pid 6167] +++ exited with 0 +++ [pid 6165] +++ exited with 0 +++ [pid 5835] <... unlink resumed>) = 0 [pid 5835] umount2("./18/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5835] newfstatat(AT_FDCWD, "./18/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5835] unlink("./18/binderfs") = 0 [pid 5835] umount2("./18/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5836] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=44, si_uid=0, si_status=0, si_utime=0, si_stime=21 /* 0.21 s */} --- [pid 6176] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 6176] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6175] <... futex resumed>) = 0 [pid 5836] umount2("./18", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6176] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 6175] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6175] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5836] openat(AT_FDCWD, "./18", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5836] newfstatat(3, "", [pid 6176] <... openat resumed>) = 6 [pid 5836] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [ 119.250141][ T6164] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 119.265447][ T6178] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 119.280051][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5836] getdents64(3, [pid 6176] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5836] <... getdents64 resumed>0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 5836] umount2("./18/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5836] newfstatat(AT_FDCWD, "./18/cgroup", [pid 6176] <... futex resumed>) = 1 [pid 6175] <... futex resumed>) = 0 [pid 5836] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5836] unlink("./18/cgroup" [pid 6176] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 6175] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5836] <... unlink resumed>) = 0 [pid 5836] umount2("./18/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5836] newfstatat(AT_FDCWD, "./18/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5836] unlink("./18/cgroup.cpu") = 0 [pid 5836] umount2("./18/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5836] newfstatat(AT_FDCWD, "./18/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5836] unlink("./18/cgroup.net") = 0 [pid 5836] umount2("./18/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5836] newfstatat(AT_FDCWD, "./18/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5836] unlink("./18/binderfs") = 0 [pid 5836] umount2("./18/file2", MNT_FORCE|UMOUNT_NOFOLLOW [ 119.295872][ T6170] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 119.299855][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 119.309646][ T6170] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 119.337457][ T6170] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 119.351517][ T6171] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 119.362879][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 119.374873][ T6170] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 119.387476][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 119.399010][ T6170] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 119.410890][ T5834] NILFS (loop1): disposed unprocessed dirty file(s) when stopping log writer [ 119.420905][ T6170] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6175] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [ 119.446959][ T6170] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 119.466670][ T6178] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 119.469792][ T6171] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 119.488656][ T6170] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5834] <... umount2 resumed>) = 0 [pid 5834] umount2("./19/file2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5834] newfstatat(AT_FDCWD, "./19/file2", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5834] umount2("./19/file2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5834] openat(AT_FDCWD, "./19/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5834] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 5834] getdents64(4, 0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 5834] getdents64(4, 0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 5834] close(4) = 0 [pid 5834] rmdir("./19/file2") = 0 [pid 6176] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 5834] getdents64(3, 0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 6176] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5834] close(3) = 0 [pid 5834] rmdir("./19") = 0 [pid 5834] mkdir("./20", 0777) = 0 [pid 5834] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5834] ioctl(3, LOOP_CLR_FD) = 0 [pid 5834] close(3 [ 119.502815][ T6170] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 119.510318][ T6171] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 119.519521][ T6170] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 119.537799][ T6171] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6176] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6175] close(3 [pid 5834] <... close resumed>) = 0 [pid 5834] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6179 attached [pid 6179] set_robust_list(0x55555fa3c6a0, 24 [pid 5834] <... clone resumed>, child_tidptr=0x55555fa3c690) = 50 [pid 6179] <... set_robust_list resumed>) = 0 [pid 6179] chdir("./20") = 0 [pid 6179] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6179] setpgid(0, 0) = 0 [ 119.550534][ T6171] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 119.563749][ T6170] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 119.576924][ T6171] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 119.582722][ T6170] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6179] symlink("/syzcgroup/unified/syz1", "./cgroup"executing program ) = 0 [pid 6175] <... close resumed>) = 0 [pid 6179] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu") = 0 [pid 6179] symlink("/syzcgroup/net/syz1", "./cgroup.net") = 0 [pid 6179] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6179] write(3, "1000", 4) = 4 [pid 6179] close(3) = 0 [pid 6179] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6179] write(1, "executing program\n", 18) = 18 [pid 6179] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6179] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, NULL, 8) = 0 [pid 6179] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6179] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0d6adff000 [pid 6179] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6179] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6179] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0}./strace-static-x86_64: Process 6180 attached [pid 6180] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 6179] <... clone3 resumed> => {parent_tid=[51]}, 88) = 51 [pid 6180] <... rseq resumed>) = 0 [pid 6180] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 6179] rt_sigprocmask(SIG_SETMASK, [], [pid 6180] <... set_robust_list resumed>) = 0 [pid 6179] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6180] rt_sigprocmask(SIG_SETMASK, [], [pid 6179] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6180] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6179] <... futex resumed>) = 0 [pid 6180] memfd_create("syzkaller", 0 [pid 6179] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6180] <... memfd_create resumed>) = 3 [pid 6180] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 [pid 6175] close(4 [ 119.607214][ T6171] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 119.619848][ T6171] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 119.627825][ T6170] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 119.633266][ T6177] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6180] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6175] <... close resumed>) = 0 [pid 6174] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 6175] close(5 [pid 6174] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6172] close(3) = 0 [pid 6172] close(4) = 0 [pid 6172] close(5) = 0 [pid 6172] close(6) = 0 [pid 6172] close(7) = -1 EBADF (Bad file descriptor) [pid 6172] close(8) = -1 EBADF (Bad file descriptor) [pid 6172] close(9) = -1 EBADF (Bad file descriptor) [pid 6172] close(10) = -1 EBADF (Bad file descriptor) [pid 6172] close(11) = -1 EBADF (Bad file descriptor) [pid 6172] close(12) = -1 EBADF (Bad file descriptor) [pid 6172] close(13) = -1 EBADF (Bad file descriptor) [pid 6172] close(14) = -1 EBADF (Bad file descriptor) [pid 6172] close(15) = -1 EBADF (Bad file descriptor) [pid 6172] close(16) = -1 EBADF (Bad file descriptor) [pid 6172] close(17) = -1 EBADF (Bad file descriptor) [pid 6172] close(18) = -1 EBADF (Bad file descriptor) [pid 6172] close(19) = -1 EBADF (Bad file descriptor) [pid 6172] close(20) = -1 EBADF (Bad file descriptor) [pid 6172] close(21) = -1 EBADF (Bad file descriptor) [pid 6172] close(22) = -1 EBADF (Bad file descriptor) [pid 6172] close(23) = -1 EBADF (Bad file descriptor) [pid 6172] close(24) = -1 EBADF (Bad file descriptor) [pid 6172] close(25) = -1 EBADF (Bad file descriptor) [pid 6172] close(26) = -1 EBADF (Bad file descriptor) [pid 6172] close(27) = -1 EBADF (Bad file descriptor) [pid 6172] close(28) = -1 EBADF (Bad file descriptor) [pid 6172] close(29) = -1 EBADF (Bad file descriptor) [pid 6172] exit_group(0) = ? [pid 6175] <... close resumed>) = 0 [pid 6174] <... futex resumed>) = ? [pid 6180] <... write resumed>) = 1048576 [pid 6180] munmap(0x7f0d62800000, 138412032) = 0 [pid 6180] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 6180] ioctl(4, LOOP_SET_FD, 3 [pid 6175] close(6 [pid 6174] +++ exited with 0 +++ [pid 6172] +++ exited with 0 +++ [ 119.652568][ T6171] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 119.665315][ T6171] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 119.676894][ T6171] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 119.683422][ T6180] loop1: detected capacity change from 0 to 2048 [ 119.691852][ T6171] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6175] <... close resumed>) = 0 [pid 5837] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=45, si_uid=0, si_status=0, si_utime=0, si_stime=28 /* 0.28 s */} --- [pid 6180] <... ioctl resumed>) = 0 [pid 6180] close(3) = 0 [pid 6180] close(4) = 0 [pid 6175] close(7 [pid 6180] mkdir("./file2", 0777) = 0 [ 119.695001][ T6170] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 119.705344][ T6171] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 119.728396][ T6171] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 119.729285][ T6180] NILFS (loop1): broken superblock, retrying with spare superblock (blocksize = 1024) [pid 6180] mount("/dev/loop1", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 6175] <... close resumed>) = -1 EBADF (Bad file descriptor) [ 119.740568][ T6171] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 119.752883][ T6170] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 119.767099][ T5836] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 119.780186][ T5835] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 119.781368][ T5836] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6175] close(8 [pid 5837] umount2("./19", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6175] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6175] close(9) = -1 EBADF (Bad file descriptor) [pid 6175] close(10) = -1 EBADF (Bad file descriptor) [pid 6175] close(11) = -1 EBADF (Bad file descriptor) [pid 6175] close(12) = -1 EBADF (Bad file descriptor) [pid 6175] close(13) = -1 EBADF (Bad file descriptor) [pid 6175] close(14) = -1 EBADF (Bad file descriptor) [pid 6175] close(15) = -1 EBADF (Bad file descriptor) [pid 6175] close(16) = -1 EBADF (Bad file descriptor) [pid 6175] close(17) = -1 EBADF (Bad file descriptor) [pid 6175] close(18) = -1 EBADF (Bad file descriptor) [pid 6175] close(19) = -1 EBADF (Bad file descriptor) [pid 6175] close(20) = -1 EBADF (Bad file descriptor) [pid 6175] close(21) = -1 EBADF (Bad file descriptor) [pid 6175] close(22) = -1 EBADF (Bad file descriptor) [pid 6175] close(23) = -1 EBADF (Bad file descriptor) [pid 6175] close(24) = -1 EBADF (Bad file descriptor) [pid 6175] close(25) = -1 EBADF (Bad file descriptor) [pid 6175] close(26) = -1 EBADF (Bad file descriptor) [pid 6175] close(27) = -1 EBADF (Bad file descriptor) [pid 6175] close(28) = -1 EBADF (Bad file descriptor) [pid 6175] close(29) = -1 EBADF (Bad file descriptor) [pid 6175] exit_group(0) = ? [pid 6176] <... futex resumed>) = ? [pid 6176] +++ exited with 0 +++ [pid 6175] +++ exited with 0 +++ [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5837] openat(AT_FDCWD, "./19", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5837] newfstatat(3, "", [pid 5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=49, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [ 119.804018][ T5836] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 119.815116][ T5836] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 119.825964][ T5836] NILFS (loop2): disposed unprocessed dirty file(s) when stopping log writer [ 119.826736][ T5835] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6180] <... mount resumed>) = 0 [pid 5837] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 6180] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5837] getdents64(3, [pid 6180] <... openat resumed>) = 3 [pid 5837] <... getdents64 resumed>0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 6180] chdir("./file2" [pid 5837] umount2("./19/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6180] <... chdir resumed>) = 0 [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6180] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5837] newfstatat(AT_FDCWD, "./19/cgroup", [pid 6180] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5837] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6180] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] unlink("./19/cgroup" [pid 6180] <... futex resumed>) = 1 [pid 6179] <... futex resumed>) = 0 [pid 5837] <... unlink resumed>) = 0 [pid 6180] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6179] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] umount2("./19/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5833] umount2("./19", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6180] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6179] <... futex resumed>) = 0 [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6180] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 6179] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5837] newfstatat(AT_FDCWD, "./19/cgroup.cpu", [pid 6180] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 5837] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6180] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] unlink("./19/cgroup.cpu" [pid 6180] <... futex resumed>) = 1 [pid 6179] <... futex resumed>) = 0 [pid 5837] <... unlink resumed>) = 0 [pid 5836] <... umount2 resumed>) = 0 [pid 6180] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6179] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] umount2("./19/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5836] umount2("./18/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6180] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6179] <... futex resumed>) = 0 [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6180] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 6179] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5837] newfstatat(AT_FDCWD, "./19/cgroup.net", [pid 6180] <... openat resumed>) = 4 [pid 5837] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6180] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] unlink("./19/cgroup.net" [pid 6180] <... futex resumed>) = 1 [pid 6179] <... futex resumed>) = 0 [pid 5837] <... unlink resumed>) = 0 [pid 6180] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6179] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] umount2("./19/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6180] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6179] <... futex resumed>) = 0 [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6180] read(-1, [pid 6179] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5837] newfstatat(AT_FDCWD, "./19/binderfs", [pid 6180] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 5837] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6180] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] unlink("./19/binderfs" [pid 5833] openat(AT_FDCWD, "./19", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6180] <... futex resumed>) = 1 [pid 6179] <... futex resumed>) = 0 [pid 5837] <... unlink resumed>) = 0 [pid 5833] <... openat resumed>) = 3 [pid 6180] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6179] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] umount2("./19/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5833] newfstatat(3, "", [pid 6180] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6179] <... futex resumed>) = 0 [pid 5833] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 6180] memfd_create("syzkaller", 0 [pid 6179] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5833] getdents64(3, [pid 6180] <... memfd_create resumed>) = 5 [pid 5833] <... getdents64 resumed>0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 6180] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5833] umount2("./19/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6180] <... mmap resumed>) = 0x7f0d62800000 [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6180] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5836] newfstatat(AT_FDCWD, "./18/file2", [pid 5833] newfstatat(AT_FDCWD, "./19/cgroup", [pid 6180] <... write resumed>) = 524288 [pid 5833] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6180] munmap(0x7f0d62800000, 138412032 [pid 5836] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./19/cgroup" [pid 6180] <... munmap resumed>) = 0 [pid 5833] <... unlink resumed>) = 0 [pid 6180] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5833] umount2("./19/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6180] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 119.853715][ T6181] NILFS (loop1): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 119.880519][ T5835] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 119.891906][ T5835] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6180] close(5 [pid 5833] newfstatat(AT_FDCWD, "./19/cgroup.cpu", [pid 6180] <... close resumed>) = 0 [pid 5833] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6180] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5836] umount2("./18/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5833] unlink("./19/cgroup.cpu" [pid 6180] <... futex resumed>) = 1 [pid 6179] <... futex resumed>) = 0 [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5833] <... unlink resumed>) = 0 [pid 6180] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6179] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5836] openat(AT_FDCWD, "./18/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5835] <... umount2 resumed>) = 0 [pid 5833] umount2("./19/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6180] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6179] <... futex resumed>) = 0 [pid 5836] <... openat resumed>) = 4 [pid 5835] umount2("./18/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6180] fsync(-1 [pid 6179] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5836] newfstatat(4, "", [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6180] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 5835] newfstatat(AT_FDCWD, "./18/file2", [pid 6180] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5835] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6180] <... futex resumed>) = 1 [pid 6179] <... futex resumed>) = 0 [pid 5836] getdents64(4, [pid 5835] umount2("./18/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6180] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6179] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6180] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6179] <... futex resumed>) = 0 [pid 5836] <... getdents64 resumed>0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6180] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6179] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5836] getdents64(4, [ 119.904316][ T5835] NILFS (loop3): disposed unprocessed dirty file(s) when stopping log writer [ 119.913910][ T6177] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 119.929178][ T6177] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 119.944430][ T6177] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5835] openat(AT_FDCWD, "./18/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5836] <... getdents64 resumed>0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 6180] <... openat resumed>) = 5 [pid 5835] <... openat resumed>) = 4 [pid 5833] newfstatat(AT_FDCWD, "./19/cgroup.net", [pid 6180] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5836] close(4 [pid 5835] newfstatat(4, "", [pid 5833] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6180] <... futex resumed>) = 1 [pid 6179] <... futex resumed>) = 0 [pid 5836] <... close resumed>) = 0 [pid 5835] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 6180] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6179] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5836] rmdir("./18/file2" [pid 5835] getdents64(4, [pid 5833] unlink("./19/cgroup.net" [pid 6180] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6179] <... futex resumed>) = 0 [pid 5836] <... rmdir resumed>) = 0 [pid 5835] <... getdents64 resumed>0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 5833] <... unlink resumed>) = 0 [pid 6180] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 6179] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5836] getdents64(3, [pid 5835] getdents64(4, 0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 5833] umount2("./19/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5835] close(4 [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5835] <... close resumed>) = 0 [pid 5835] rmdir("./18/file2" [pid 5833] newfstatat(AT_FDCWD, "./19/binderfs", [pid 5835] <... rmdir resumed>) = 0 [pid 5833] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5835] getdents64(3, [pid 5833] unlink("./19/binderfs" [pid 5835] <... getdents64 resumed>0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 5835] close(3) = 0 [pid 5833] <... unlink resumed>) = 0 [pid 5835] rmdir("./18" [pid 5833] umount2("./19/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5835] <... rmdir resumed>) = 0 [ 119.957399][ T6177] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 119.970001][ T6177] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 119.986842][ T6177] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 119.998655][ T6177] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5835] mkdir("./19", 0777) = 0 [pid 6180] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 5836] <... getdents64 resumed>0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 6180] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5835] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6180] <... futex resumed>) = 1 [pid 6179] <... futex resumed>) = 0 [pid 5835] <... openat resumed>) = 3 [pid 6180] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 6179] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5835] ioctl(3, LOOP_CLR_FD) = 0 [pid 5835] close(3 [pid 6179] <... futex resumed>) = 0 [pid 6179] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [ 120.000721][ T6181] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 120.010315][ T6177] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 120.042283][ T6178] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5836] close(3 [pid 6180] <... openat resumed>) = 6 [pid 5836] <... close resumed>) = 0 [pid 5835] <... close resumed>) = 0 [pid 5836] rmdir("./18" [pid 6180] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6179] <... futex resumed>) = 0 [pid 6180] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 6179] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5836] <... rmdir resumed>) = 0 [pid 5835] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6182 attached [pid 6179] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5836] mkdir("./19", 0777 [pid 6182] set_robust_list(0x55555fa3c6a0, 24) = 0 [pid 5836] <... mkdir resumed>) = 0 [pid 5835] <... clone resumed>, child_tidptr=0x55555fa3c690) = 43 [ 120.054142][ T6177] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 120.070366][ T6178] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 120.079775][ T6177] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 120.094042][ T6178] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6182] chdir("./19" [pid 5836] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 6182] <... chdir resumed>) = 0 [pid 5836] <... openat resumed>) = 3 [ 120.095219][ T6177] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 120.116945][ T6178] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 120.129211][ T6178] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 120.142495][ T6177] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6182] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6179] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5836] ioctl(3, LOOP_CLR_FD [pid 6182] setpgid(0, 0 [pid 5836] <... ioctl resumed>) = 0 [pid 6182] <... setpgid resumed>) = 0 [ 120.142542][ T6178] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 120.165282][ T6177] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 120.166655][ T6178] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 120.188815][ T6178] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 120.199965][ T6177] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5836] close(3 [pid 6182] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 5836] <... close resumed>) = 0 [pid 6182] <... symlink resumed>) = 0 [ 120.207154][ T6178] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 120.223422][ T6177] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 120.244972][ T6178] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5836] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6182] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu"executing program ./strace-static-x86_64: Process 6183 attached ) = 0 [pid 5836] <... clone resumed>, child_tidptr=0x55555fa3c690) = 46 [pid 6182] symlink("/syzcgroup/net/syz3", "./cgroup.net") = 0 [pid 6182] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6182] write(3, "1000", 4) = 4 [pid 6182] close(3) = 0 [pid 6182] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6182] write(1, "executing program\n", 18) = 18 [pid 6182] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6182] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, NULL, 8) = 0 [pid 6182] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6182] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0d6adff000 [pid 6182] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6182] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6182] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0} => {parent_tid=[44]}, 88) = 44 [pid 6182] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6182] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6182] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6183] set_robust_list(0x55555fa3c6a0, 24) = 0 [pid 6183] chdir("./19") = 0 [pid 6183] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6183] setpgid(0, 0) = 0 [pid 6183] symlink("/syzcgroup/unified/syz2", "./cgroup") = 0 [pid 6183] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu") = 0 [pid 6183] symlink("/syzcgroup/net/syz2", "./cgroup.net"./strace-static-x86_64: Process 6184 attached ) = 0 [pid 6183] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6183] write(3, "1000", 4) = 4 [pid 6183] close(3) = 0 [pid 6183] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 6183] write(1, "executing program\n", 18) = 18 [pid 6183] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6183] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, NULL, 8) = 0 [pid 6183] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6183] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0d6adff000 [ 120.250142][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 120.267755][ T6178] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 120.268481][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 120.288841][ T6178] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6183] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE [pid 6184] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 6183] <... mprotect resumed>) = 0 [pid 6183] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6183] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0} => {parent_tid=[47]}, 88) = 47 [pid 6183] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 6183] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6183] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 6185 attached [pid 6184] <... rseq resumed>) = 0 [pid 6185] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [ 120.301742][ T6178] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 120.314661][ T6178] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 120.326574][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 120.338418][ T6178] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6184] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 6185] <... rseq resumed>) = 0 [pid 6184] <... set_robust_list resumed>) = 0 [pid 6180] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 6180] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6179] close(3 [pid 6180] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6179] <... close resumed>) = 0 [pid 6179] close(4) = 0 [pid 6179] close(5) = 0 [pid 6179] close(6) = 0 [pid 6179] close(7) = -1 EBADF (Bad file descriptor) [pid 6179] close(8) = -1 EBADF (Bad file descriptor) [pid 6179] close(9) = -1 EBADF (Bad file descriptor) [pid 6179] close(10) = -1 EBADF (Bad file descriptor) [pid 6179] close(11) = -1 EBADF (Bad file descriptor) [pid 6179] close(12) = -1 EBADF (Bad file descriptor) [pid 6179] close(13) = -1 EBADF (Bad file descriptor) [pid 6179] close(14) = -1 EBADF (Bad file descriptor) [ 120.343799][ T6181] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 120.362440][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 120.374862][ T5837] NILFS (loop4): disposed unprocessed dirty file(s) when stopping log writer [ 120.375235][ T5833] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 120.395952][ T5833] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6185] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 6184] rt_sigprocmask(SIG_SETMASK, [], [pid 6179] close(15 [pid 6185] <... set_robust_list resumed>) = 0 [pid 6185] rt_sigprocmask(SIG_SETMASK, [], [pid 6184] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6179] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5837] <... umount2 resumed>) = 0 [pid 6185] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6184] memfd_create("syzkaller", 0 [pid 6185] memfd_create("syzkaller", 0 [pid 6184] <... memfd_create resumed>) = 3 [pid 5837] umount2("./19/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6185] <... memfd_create resumed>) = 3 [pid 6184] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6185] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6184] <... mmap resumed>) = 0x7f0d62800000 [pid 5837] newfstatat(AT_FDCWD, "./19/file2", [pid 6185] <... mmap resumed>) = 0x7f0d62800000 [pid 6184] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6185] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6179] close(16) = -1 EBADF (Bad file descriptor) [pid 5837] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6179] close(17) = -1 EBADF (Bad file descriptor) [pid 5837] umount2("./19/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6179] close(18) = -1 EBADF (Bad file descriptor) [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6179] close(19 [pid 6185] <... write resumed>) = 1048576 [pid 6179] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5837] openat(AT_FDCWD, "./19/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6185] munmap(0x7f0d62800000, 138412032 [pid 6179] close(20) = -1 EBADF (Bad file descriptor) [pid 5837] <... openat resumed>) = 4 [pid 6179] close(21 [pid 5837] newfstatat(4, "", [pid 6179] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6184] <... write resumed>) = 1048576 [pid 6179] close(22 [pid 5837] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 6179] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6184] munmap(0x7f0d62800000, 138412032 [ 120.406705][ T5833] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 120.417484][ T5833] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 120.428336][ T5833] NILFS (loop0): disposed unprocessed dirty file(s) when stopping log writer [pid 6179] close(23 [pid 6185] <... munmap resumed>) = 0 [pid 6184] <... munmap resumed>) = 0 [pid 6179] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5837] getdents64(4, [pid 6184] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 6184] ioctl(4, LOOP_SET_FD, 3 [pid 6185] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 6179] close(24 [pid 5837] <... getdents64 resumed>0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 5833] <... umount2 resumed>) = 0 [pid 6185] <... openat resumed>) = 4 [pid 6179] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5837] getdents64(4, [pid 5833] umount2("./19/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6185] ioctl(4, LOOP_SET_FD, 3 [pid 6184] <... ioctl resumed>) = 0 [pid 6179] close(25 [pid 5837] <... getdents64 resumed>0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6184] close(3) = 0 [pid 6184] close(4 [pid 6185] <... ioctl resumed>) = 0 [pid 6184] <... close resumed>) = 0 [pid 6179] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5837] close(4 [pid 5833] newfstatat(AT_FDCWD, "./19/file2", [pid 6185] close(3 [pid 6184] mkdir("./file2", 0777 [pid 6179] close(26 [pid 5837] <... close resumed>) = 0 [pid 5833] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6185] <... close resumed>) = 0 [pid 6184] <... mkdir resumed>) = 0 [pid 6179] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5837] rmdir("./19/file2" [pid 5833] umount2("./19/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6185] close(4 [pid 6184] mount("/dev/loop3", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 6179] close(27 [pid 5837] <... rmdir resumed>) = 0 [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6185] <... close resumed>) = 0 [pid 6179] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5837] getdents64(3, [pid 5833] openat(AT_FDCWD, "./19/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6185] mkdir("./file2", 0777 [pid 6179] close(28 [pid 5837] <... getdents64 resumed>0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 5833] <... openat resumed>) = 4 [pid 6185] <... mkdir resumed>) = 0 [pid 6179] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5837] close(3 [pid 5833] newfstatat(4, "", [pid 6179] close(29 [pid 5837] <... close resumed>) = 0 [pid 5833] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 6185] mount("/dev/loop2", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 6179] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5837] rmdir("./19" [pid 5833] getdents64(4, [pid 6179] exit_group(0 [pid 5837] <... rmdir resumed>) = 0 [pid 5833] <... getdents64 resumed>0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 6180] <... futex resumed>) = ? [pid 6179] <... exit_group resumed>) = ? [ 120.468029][ T6184] loop3: detected capacity change from 0 to 2048 [ 120.476440][ T6185] loop2: detected capacity change from 0 to 2048 [ 120.492998][ T6184] NILFS (loop3): broken superblock, retrying with spare superblock (blocksize = 1024) [pid 5837] mkdir("./20", 0777 [pid 5833] getdents64(4, [pid 6180] +++ exited with 0 +++ [pid 6179] +++ exited with 0 +++ [pid 5837] <... mkdir resumed>) = 0 [pid 5833] <... getdents64 resumed>0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 5837] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5833] close(4 [pid 5837] <... openat resumed>) = 3 [pid 5833] <... close resumed>) = 0 [pid 5837] ioctl(3, LOOP_CLR_FD [pid 5833] rmdir("./19/file2" [pid 5837] <... ioctl resumed>) = 0 [pid 5833] <... rmdir resumed>) = 0 [pid 5837] close(3 [pid 5833] getdents64(3, [pid 5834] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=50, si_uid=0, si_status=0, si_utime=0, si_stime=22 /* 0.22 s */} --- [pid 5833] <... getdents64 resumed>0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 5834] restart_syscall(<... resuming interrupted clone ...> [pid 5833] close(3) = 0 [pid 5833] rmdir("./19") = 0 [pid 5833] mkdir("./20", 0777) = 0 [pid 5833] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5834] <... restart_syscall resumed>) = 0 [pid 5833] ioctl(3, LOOP_CLR_FD) = 0 [pid 5833] close(3 [pid 5834] umount2("./20", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5833] <... close resumed>) = 0 [pid 5837] <... close resumed>) = 0 [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6186 attached [pid 5834] openat(AT_FDCWD, "./20", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6186] set_robust_list(0x55555fa3c6a0, 24 [pid 5834] <... openat resumed>) = 3 [pid 5833] <... clone resumed>, child_tidptr=0x55555fa3c690) = 51 [pid 6186] <... set_robust_list resumed>) = 0 [pid 5834] newfstatat(3, "", [pid 5837] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6186] chdir("./20" [pid 5834] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 6186] <... chdir resumed>) = 0 [pid 5834] getdents64(3, [pid 6186] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5834] <... getdents64 resumed>0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 6186] <... prctl resumed>) = 0 [pid 5834] umount2("./20/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6186] setpgid(0, 0 [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6186] <... setpgid resumed>) = 0 [pid 5834] newfstatat(AT_FDCWD, "./20/cgroup", [pid 6186] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 5834] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6186] <... symlink resumed>) = 0 [pid 5834] unlink("./20/cgroup" [pid 6186] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 5834] <... unlink resumed>) = 0 ./strace-static-x86_64: Process 6187 attached [pid 6186] <... symlink resumed>) = 0 [pid 5837] <... clone resumed>, child_tidptr=0x55555fa3c690) = 47 [pid 5834] umount2("./20/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6186] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6187] set_robust_list(0x55555fa3c6a0, 24 [pid 6186] <... symlink resumed>) = 0 [pid 5834] newfstatat(AT_FDCWD, "./20/cgroup.cpu", [pid 6187] <... set_robust_list resumed>) = 0 [pid 6187] chdir("./20" [pid 6186] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5834] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6187] <... chdir resumed>) = 0 [pid 6186] <... openat resumed>) = 3 [ 120.521627][ T6185] NILFS (loop2): broken superblock, retrying with spare superblock (blocksize = 1024) [ 120.535141][ T5838] udevd[5838]: incorrect nilfs2 checksum on /dev/loop3 [pid 5834] unlink("./20/cgroup.cpu" [pid 6186] write(3, "1000", 4 [pid 5834] <... unlink resumed>) = 0 [pid 6186] <... write resumed>) = 4 [pid 5834] umount2("./20/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 6186] close(3 [pid 5834] newfstatat(AT_FDCWD, "./20/cgroup.net", [pid 6186] <... close resumed>) = 0 [pid 5834] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6186] symlink("/dev/binderfs", "./binderfs" [pid 5834] unlink("./20/cgroup.net" [pid 6186] <... symlink resumed>) = 0 [pid 5834] <... unlink resumed>) = 0 executing program [pid 6186] write(1, "executing program\n", 18 [pid 5834] umount2("./20/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6186] <... write resumed>) = 18 [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6186] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5834] newfstatat(AT_FDCWD, "./20/binderfs", [pid 6186] <... futex resumed>) = 0 [pid 5834] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6186] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, [pid 5834] unlink("./20/binderfs" [pid 6186] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5834] <... unlink resumed>) = 0 [pid 6187] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6187] setpgid(0, 0 [pid 6186] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5834] umount2("./20/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6186] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6187] <... setpgid resumed>) = 0 [pid 6186] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6187] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 6186] <... mmap resumed>) = 0x7f0d6adff000 [pid 6186] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE [pid 6187] <... symlink resumed>) = 0 [pid 6186] <... mprotect resumed>) = 0 [pid 6187] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [ 120.563926][ T6188] NILFS (loop3): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 120.576970][ T6189] NILFS (loop2): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 120.592097][ T6181] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6186] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6187] <... symlink resumed>) = 0 [pid 6186] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0} [pid 6187] symlink("/syzcgroup/net/syz4", "./cgroup.net"./strace-static-x86_64: Process 6190 attached ) = 0 [pid 6190] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 6187] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6186] <... clone3 resumed> => {parent_tid=[52]}, 88) = 52 [pid 6190] <... rseq resumed>) = 0 [pid 6187] <... openat resumed>) = 3 [pid 6186] rt_sigprocmask(SIG_SETMASK, [], [pid 6190] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 6187] write(3, "1000", 4 [pid 6186] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6190] <... set_robust_list resumed>) = 0 [pid 6187] <... write resumed>) = 4 [pid 6186] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6190] rt_sigprocmask(SIG_SETMASK, [], executing program [pid 6187] close(3 [pid 6186] <... futex resumed>) = 0 [pid 6190] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6187] <... close resumed>) = 0 [pid 6186] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6190] memfd_create("syzkaller", 0 [pid 6187] symlink("/dev/binderfs", "./binderfs" [pid 6190] <... memfd_create resumed>) = 3 [pid 6187] <... symlink resumed>) = 0 [pid 6190] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6187] write(1, "executing program\n", 18 [pid 6190] <... mmap resumed>) = 0x7f0d62800000 [pid 6187] <... write resumed>) = 18 [pid 6187] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6190] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6187] <... futex resumed>) = 0 [pid 6187] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, NULL, 8) = 0 [pid 6187] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6187] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0d6adff000 [pid 6187] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6187] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6187] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0}./strace-static-x86_64: Process 6191 attached [pid 6191] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 6187] <... clone3 resumed> => {parent_tid=[48]}, 88) = 48 [pid 6191] <... rseq resumed>) = 0 [pid 6187] rt_sigprocmask(SIG_SETMASK, [], [pid 6191] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 6187] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6191] <... set_robust_list resumed>) = 0 [pid 6187] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6191] rt_sigprocmask(SIG_SETMASK, [], [pid 6187] <... futex resumed>) = 0 [pid 6191] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6187] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6191] memfd_create("syzkaller", 0) = 3 [pid 6191] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 [ 120.607012][ T6181] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6191] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6185] <... mount resumed>) = 0 [pid 6185] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 6184] <... mount resumed>) = 0 [pid 6185] <... openat resumed>) = 3 [pid 6184] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 6185] chdir("./file2" [pid 6184] <... openat resumed>) = 3 [pid 6185] <... chdir resumed>) = 0 [pid 6184] chdir("./file2" [pid 6185] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 6184] <... chdir resumed>) = 0 [pid 6185] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6184] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6185] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6184] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6185] <... futex resumed>) = 1 [pid 6184] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6183] <... futex resumed>) = 0 [pid 6185] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 6184] <... futex resumed>) = 1 [pid 6183] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6182] <... futex resumed>) = 0 [pid 6183] <... futex resumed>) = 0 [pid 6185] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 6184] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6183] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6182] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6185] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6184] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6182] <... futex resumed>) = 0 [pid 6185] <... futex resumed>) = 1 [pid 6184] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 6183] <... futex resumed>) = 0 [pid 6182] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6185] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6184] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 6183] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6185] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6184] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6183] <... futex resumed>) = 0 [pid 6185] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 6184] <... futex resumed>) = 1 [pid 6183] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6182] <... futex resumed>) = 0 [pid 6190] <... write resumed>) = 1048576 [pid 6185] <... openat resumed>) = 4 [pid 6190] munmap(0x7f0d62800000, 138412032 [pid 6185] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6184] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6182] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6185] <... futex resumed>) = 1 [pid 6184] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6183] <... futex resumed>) = 0 [pid 6182] <... futex resumed>) = 0 [pid 6185] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6184] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 6183] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6185] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6183] <... futex resumed>) = 0 [pid 6182] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [ 120.653240][ T6181] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6185] read(-1, [pid 6184] <... openat resumed>) = 4 [pid 6183] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6191] <... write resumed>) = 1048576 [pid 6190] <... munmap resumed>) = 0 [pid 6185] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 6191] munmap(0x7f0d62800000, 138412032 [pid 6190] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6185] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6184] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6191] <... munmap resumed>) = 0 [pid 6185] <... futex resumed>) = 1 [pid 6184] <... futex resumed>) = 1 [pid 6183] <... futex resumed>) = 0 [pid 6182] <... futex resumed>) = 0 [pid 6191] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6190] ioctl(4, LOOP_SET_FD, 3 [pid 6183] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6183] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6191] <... openat resumed>) = 4 [pid 6185] memfd_create("syzkaller", 0 [pid 6184] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6182] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6191] ioctl(4, LOOP_SET_FD, 3 [pid 6190] <... ioctl resumed>) = 0 [pid 6185] <... memfd_create resumed>) = 5 [pid 6184] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6182] <... futex resumed>) = 0 [ 120.708286][ T6181] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 120.723462][ T6181] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 120.727328][ T6190] loop0: detected capacity change from 0 to 2048 [ 120.735494][ T6181] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 120.745153][ T6191] loop4: detected capacity change from 0 to 2048 [pid 6191] <... ioctl resumed>) = 0 [pid 6190] close(3 [pid 6185] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6184] read(-1, [pid 6182] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6191] close(3) = 0 [pid 6190] <... close resumed>) = 0 [pid 6185] <... mmap resumed>) = 0x7f0d62800000 [pid 6184] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 6190] close(4) = 0 [pid 6190] mkdir("./file2", 0777 [pid 6184] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6191] close(4 [pid 6190] <... mkdir resumed>) = 0 [pid 6184] <... futex resumed>) = 1 [pid 6182] <... futex resumed>) = 0 [pid 6190] mount("/dev/loop0", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 6184] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6191] <... close resumed>) = 0 [pid 6184] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6182] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [ 120.753605][ T6181] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 120.769815][ T6181] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 120.781064][ T6181] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 120.795227][ T6190] NILFS (loop0): broken superblock, retrying with spare superblock (blocksize = 1024) [pid 6191] mkdir("./file2", 0777) = 0 [pid 6185] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 6184] memfd_create("syzkaller", 0 [pid 6182] <... futex resumed>) = 0 [pid 6184] <... memfd_create resumed>) = 5 [pid 6182] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6184] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 [pid 6184] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 6185] <... write resumed>) = 524288 [pid 6184] <... write resumed>) = 524288 [pid 6185] munmap(0x7f0d62800000, 138412032) = 0 [pid 6185] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6185] close(5 [pid 6191] mount("/dev/loop4", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 6184] munmap(0x7f0d62800000, 138412032 [pid 6185] <... close resumed>) = 0 [pid 6184] <... munmap resumed>) = 0 [pid 6190] <... mount resumed>) = 0 [pid 6185] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6183] <... futex resumed>) = 0 [pid 6185] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6183] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6185] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6183] <... futex resumed>) = 0 [pid 6190] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 6185] fsync(-1 [pid 6184] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6190] <... openat resumed>) = 3 [pid 6185] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 6190] chdir("./file2" [pid 6184] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6183] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6185] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6183] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6190] <... chdir resumed>) = 0 [pid 6184] close(5 [pid 6190] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6185] <... futex resumed>) = 0 [pid 6183] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6190] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6185] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6183] <... futex resumed>) = 0 [ 120.806496][ T6181] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 120.832282][ T5838] udevd[5838]: incorrect nilfs2 checksum on /dev/loop0 [ 120.845619][ T6192] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6183] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6190] <... futex resumed>) = 1 [pid 6186] <... futex resumed>) = 0 [pid 6185] <... openat resumed>) = 5 [pid 6184] <... close resumed>) = 0 [pid 6185] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6184] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6190] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6185] <... futex resumed>) = 1 [pid 6184] <... futex resumed>) = 1 [pid 6190] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6186] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6185] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6184] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6182] <... futex resumed>) = 0 [pid 6190] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 6186] <... futex resumed>) = 0 [pid 6182] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6190] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 6186] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6184] <... futex resumed>) = 0 [pid 6182] <... futex resumed>) = 1 [pid 6190] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6186] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6184] fsync(-1 [pid 6182] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6190] <... futex resumed>) = 0 [pid 6186] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6184] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 6190] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 6186] <... futex resumed>) = 0 [pid 6184] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6190] <... openat resumed>) = 4 [pid 6186] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6184] <... futex resumed>) = 1 [pid 6182] <... futex resumed>) = 0 [pid 6190] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6186] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6184] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6182] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6190] <... futex resumed>) = 0 [pid 6186] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6184] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6182] <... futex resumed>) = 0 [pid 6190] read(-1, [pid 6186] <... futex resumed>) = 0 [pid 6184] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6182] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6190] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 6186] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6190] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6186] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6190] <... futex resumed>) = 0 [pid 6186] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6190] memfd_create("syzkaller", 0 [pid 6186] <... futex resumed>) = 0 [pid 6190] <... memfd_create resumed>) = 5 [pid 6186] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6190] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 [pid 6183] <... futex resumed>) = 0 [pid 6191] <... mount resumed>) = 0 [pid 6184] <... openat resumed>) = 5 [pid 6183] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6183] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6191] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 6185] <... futex resumed>) = 0 [ 120.861998][ T6191] NILFS (loop4): broken superblock, retrying with spare superblock (blocksize = 1024) [ 120.864591][ T6181] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 120.884271][ T6181] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 120.896801][ T6193] NILFS (loop4): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6184] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6190] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 6191] <... openat resumed>) = 3 [pid 6185] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 6184] <... futex resumed>) = 1 [pid 6182] <... futex resumed>) = 0 [pid 6191] chdir("./file2" [pid 6190] <... write resumed>) = 524288 [pid 6184] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6182] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6190] munmap(0x7f0d62800000, 138412032 [pid 6191] <... chdir resumed>) = 0 [pid 6185] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 6184] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6182] <... futex resumed>) = 0 [pid 6191] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6190] <... munmap resumed>) = 0 [pid 6185] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6184] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 6182] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6191] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6190] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6185] <... futex resumed>) = 1 [pid 6183] <... futex resumed>) = 0 [pid 6191] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6190] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6185] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [ 120.910567][ T6181] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 120.921791][ T6181] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 120.931776][ T6189] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 120.933440][ T6181] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6183] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6191] <... futex resumed>) = 1 [pid 6190] close(5 [pid 6185] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6183] <... futex resumed>) = 0 [pid 6191] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6190] <... close resumed>) = 0 [pid 6187] <... futex resumed>) = 0 [pid 6185] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 6183] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6190] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6190] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6185] <... openat resumed>) = 6 [pid 6185] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6183] <... futex resumed>) = 0 [pid 6185] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [ 120.954738][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 120.966236][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 120.977939][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 120.991674][ T6188] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6183] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6187] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6186] <... futex resumed>) = 0 [pid 6183] <... futex resumed>) = 0 [pid 6183] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6186] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6186] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6187] <... futex resumed>) = 1 [pid 6187] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6190] <... futex resumed>) = 0 [pid 6184] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 6182] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6190] fsync(-1 [pid 6186] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6184] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6182] futex(0x7f0d6aef46dc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6190] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 6186] futex(0x7f0d6aef46dc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6184] <... futex resumed>) = 0 [pid 6182] <... futex resumed>) = 0 [pid 6190] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6186] <... futex resumed>) = 0 [pid 6184] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6182] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6190] <... futex resumed>) = 0 [pid 6186] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6182] <... mmap resumed>) = 0x7f0d6adde000 [pid 6190] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6186] <... mmap resumed>) = 0x7f0d6adde000 [pid 6182] mprotect(0x7f0d6addf000, 131072, PROT_READ|PROT_WRITE [pid 6186] mprotect(0x7f0d6addf000, 131072, PROT_READ|PROT_WRITE [pid 6182] <... mprotect resumed>) = 0 [pid 6186] <... mprotect resumed>) = 0 [pid 6182] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6186] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6182] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6191] <... futex resumed>) = 0 [pid 6186] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6182] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6adfe990, parent_tid=0x7f0d6adfe990, exit_signal=0, stack=0x7f0d6adde000, stack_size=0x20300, tls=0x7f0d6adfe6c0} [pid 6191] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 6186] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6adfe990, parent_tid=0x7f0d6adfe990, exit_signal=0, stack=0x7f0d6adde000, stack_size=0x20300, tls=0x7f0d6adfe6c0} [pid 6191] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 6182] <... clone3 resumed> => {parent_tid=[45]}, 88) = 45 [pid 6191] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6186] <... clone3 resumed> => {parent_tid=[53]}, 88) = 53 [pid 6182] rt_sigprocmask(SIG_SETMASK, [], [pid 6191] <... futex resumed>) = 1 [pid 6187] <... futex resumed>) = 0 [pid 6186] rt_sigprocmask(SIG_SETMASK, [], [pid 6182] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6191] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6187] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6186] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6182] futex(0x7f0d6aef46d8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 6195 attached ./strace-static-x86_64: Process 6194 attached [pid 6195] rseq(0x7f0d6adfefe0, 0x20, 0, 0x53053053 [pid 6194] rseq(0x7f0d6adfefe0, 0x20, 0, 0x53053053 [pid 6195] <... rseq resumed>) = 0 [pid 6194] <... rseq resumed>) = 0 [pid 6191] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6187] <... futex resumed>) = 0 [pid 6186] futex(0x7f0d6aef46d8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6182] <... futex resumed>) = 0 [pid 6191] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 6187] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6186] <... futex resumed>) = 0 [pid 6182] futex(0x7f0d6aef46dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6191] <... openat resumed>) = 4 [pid 6186] futex(0x7f0d6aef46dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6191] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6187] <... futex resumed>) = 0 [pid 6191] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6187] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6191] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6187] <... futex resumed>) = 0 [pid 6191] read(-1, 0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 6187] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6191] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6187] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6191] <... futex resumed>) = 0 [pid 6187] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6183] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6191] memfd_create("syzkaller", 0 [pid 6187] <... futex resumed>) = 0 [pid 6195] set_robust_list(0x7f0d6adfe9a0, 24 [pid 6191] <... memfd_create resumed>) = 5 [pid 6187] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6194] set_robust_list(0x7f0d6adfe9a0, 24 [pid 6195] <... set_robust_list resumed>) = 0 [pid 6191] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6194] <... set_robust_list resumed>) = 0 [pid 6195] rt_sigprocmask(SIG_SETMASK, [], [pid 6191] <... mmap resumed>) = 0x7f0d62800000 [pid 6195] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6194] rt_sigprocmask(SIG_SETMASK, [], [ 121.005204][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 121.017772][ T5834] NILFS (loop1): disposed unprocessed dirty file(s) when stopping log writer [pid 6191] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 6195] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6194] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6194] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 6191] munmap(0x7f0d62800000, 138412032 [pid 6195] <... openat resumed>) = 5 [pid 6195] futex(0x7f0d6aef46dc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6191] <... munmap resumed>) = 0 [pid 6185] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 6195] <... futex resumed>) = 1 [pid 6191] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6186] <... futex resumed>) = 0 [pid 6185] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6194] <... openat resumed>) = 6 [pid 6185] <... futex resumed>) = 0 [pid 6185] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6191] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6195] futex(0x7f0d6aef46d8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6194] futex(0x7f0d6aef46dc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6191] close(5 [pid 6194] <... futex resumed>) = 1 [pid 6186] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6182] <... futex resumed>) = 0 [pid 6186] <... futex resumed>) = 1 [pid 6183] close(3 [pid 6182] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6194] futex(0x7f0d6aef46d8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6191] <... close resumed>) = 0 [pid 6190] <... futex resumed>) = 0 [pid 6186] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6183] <... close resumed>) = 0 [pid 6182] <... futex resumed>) = 1 [pid 6191] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6190] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 6184] <... futex resumed>) = 0 [pid 6183] close(4 [pid 6182] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5834] <... umount2 resumed>) = 0 [pid 6187] <... futex resumed>) = 0 [pid 6191] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5834] umount2("./20/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6191] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6187] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6184] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 6183] <... close resumed>) = 0 [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6191] fsync(-1 [pid 6187] <... futex resumed>) = 0 [pid 6183] close(5 [pid 5834] newfstatat(AT_FDCWD, "./20/file2", [pid 6191] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 6187] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6191] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5834] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6191] <... futex resumed>) = 0 [pid 6187] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6191] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6187] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5834] umount2("./20/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6191] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6187] <... futex resumed>) = 0 [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6191] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6187] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5834] openat(AT_FDCWD, "./20/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 6191] <... openat resumed>) = 5 [pid 6183] <... close resumed>) = 0 [pid 6191] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6187] <... futex resumed>) = 0 [pid 6183] close(6 [ 121.088166][ T6189] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 121.116678][ T6192] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6191] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 6190] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 6187] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6183] <... close resumed>) = 0 [pid 5834] newfstatat(4, "", [pid 6190] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6187] <... futex resumed>) = 0 [pid 6190] <... futex resumed>) = 1 [pid 6187] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6186] <... futex resumed>) = 0 [pid 6190] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6186] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6190] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6183] close(7 [pid 5834] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 6190] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 6186] <... futex resumed>) = 0 [pid 6183] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5834] getdents64(4, [pid 6190] <... openat resumed>) = 6 [pid 6190] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6186] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5834] <... getdents64 resumed>0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 6190] <... futex resumed>) = 0 [pid 6186] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5834] getdents64(4, [pid 6190] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6186] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5834] <... getdents64 resumed>0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 6190] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6186] <... futex resumed>) = 0 [pid 5834] close(4 [pid 6190] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 6186] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5834] <... close resumed>) = 0 [pid 6183] close(8 [pid 5834] rmdir("./20/file2") = 0 [pid 6183] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6182] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5834] getdents64(3, 0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 6183] close(9 [pid 5834] close(3) = 0 [pid 5834] rmdir("./20") = 0 [pid 5834] mkdir("./21", 0777) = 0 [pid 5834] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5834] ioctl(3, LOOP_CLR_FD) = 0 [pid 5834] close(3 [pid 6191] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 6183] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5834] <... close resumed>) = 0 [pid 6191] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6187] <... futex resumed>) = 0 [pid 5834] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6191] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6187] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6191] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6187] <... futex resumed>) = 0 [pid 6191] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 6187] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5834] <... clone resumed>, child_tidptr=0x55555fa3c690) = 52 [ 121.142603][ T6193] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6183] close(10 [pid 6191] <... openat resumed>) = 6 [pid 6191] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6187] <... futex resumed>) = 0 [pid 6191] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6187] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6191] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6187] <... futex resumed>) = 0 [pid 6183] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6191] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 6187] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6183] close(11) = -1 EBADF (Bad file descriptor) [pid 6183] close(12 [pid 6186] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6183] <... close resumed>) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 6196 attached [pid 6184] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 6183] close(13 [pid 6196] set_robust_list(0x55555fa3c6a0, 24 [pid 6184] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6183] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6182] close(3 [pid 6196] <... set_robust_list resumed>) = 0 [pid 6184] <... futex resumed>) = 0 [pid 6183] close(14 [pid 6182] <... close resumed>) = 0 [pid 6184] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6183] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6182] close(4 [pid 6183] close(15 [pid 6182] <... close resumed>) = 0 [pid 6196] chdir("./21" [pid 6183] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6182] close(5 [pid 6196] <... chdir resumed>) = 0 [pid 6183] close(16 [pid 6182] <... close resumed>) = 0 [pid 6196] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6183] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6182] close(6 [pid 6196] <... prctl resumed>) = 0 [pid 6183] close(17 [pid 6182] <... close resumed>) = 0 [pid 6183] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6196] setpgid(0, 0 [pid 6182] close(7 [pid 6183] close(18 [pid 6182] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6196] <... setpgid resumed>) = 0 [pid 6183] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6182] close(8 [pid 6183] close(19 [pid 6182] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6196] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 6183] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6182] close(9 [pid 6183] close(20 [pid 6182] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6196] <... symlink resumed>) = 0 [pid 6183] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6182] close(10 [pid 6196] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu" [pid 6187] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6196] <... symlink resumed>) = 0 [pid 6183] close(21 [pid 6182] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6183] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6182] close(11 [pid 6196] symlink("/syzcgroup/net/syz1", "./cgroup.net" [pid 6183] close(22 [pid 6182] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6196] <... symlink resumed>) = 0 [pid 6183] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6182] close(12 [pid 6196] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6183] close(23 [pid 6182] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6183] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6182] close(13 [pid 6183] close(24 [pid 6182] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6196] <... openat resumed>) = 3 [pid 6183] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6182] close(14 [pid 6196] write(3, "1000", 4 [pid 6183] close(25 [pid 6182] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6196] <... write resumed>) = 4 [pid 6183] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6182] close(15 [pid 6196] close(3 [pid 6183] close(26 [pid 6182] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6196] <... close resumed>) = 0 [pid 6183] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6196] symlink("/dev/binderfs", "./binderfs" [pid 6183] close(27 [ 121.259717][ T6188] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6182] close(16 [pid 6196] <... symlink resumed>) = 0 [pid 6183] <... close resumed>) = -1 EBADF (Bad file descriptor) executing program [pid 6182] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6196] write(1, "executing program\n", 18 [pid 6183] close(28 [pid 6196] <... write resumed>) = 18 [pid 6183] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6196] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6183] close(29 [pid 6196] <... futex resumed>) = 0 [pid 6183] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6196] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, [pid 6183] exit_group(0 [pid 6196] <... rt_sigaction resumed>NULL, 8) = 0 [pid 6185] <... futex resumed>) = ? [pid 6183] <... exit_group resumed>) = ? [pid 6196] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 6185] +++ exited with 0 +++ [pid 6183] +++ exited with 0 +++ [pid 6196] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6196] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5836] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=46, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 6196] <... mmap resumed>) = 0x7f0d6adff000 [pid 5836] restart_syscall(<... resuming interrupted clone ...> [pid 6196] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE [pid 6182] close(17 [pid 6196] <... mprotect resumed>) = 0 [pid 6182] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6196] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6182] close(18 [pid 6196] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6196] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0} [pid 6182] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6182] close(19) = -1 EBADF (Bad file descriptor) [pid 6182] close(20./strace-static-x86_64: Process 6197 attached ) = -1 EBADF (Bad file descriptor) [pid 6197] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 6196] <... clone3 resumed> => {parent_tid=[53]}, 88) = 53 [pid 6182] close(21 [pid 6197] <... rseq resumed>) = 0 [pid 6196] rt_sigprocmask(SIG_SETMASK, [], [pid 6182] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6197] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 6196] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6182] close(22 [pid 6197] <... set_robust_list resumed>) = 0 [pid 6196] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6182] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6197] rt_sigprocmask(SIG_SETMASK, [], [pid 6196] <... futex resumed>) = 0 [pid 6182] close(23 [pid 6197] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6196] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6182] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] <... restart_syscall resumed>) = 0 [pid 6197] memfd_create("syzkaller", 0 [pid 6182] close(24 [pid 6197] <... memfd_create resumed>) = 3 [pid 6182] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6197] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6182] close(25 [pid 5836] umount2("./19", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6197] <... mmap resumed>) = 0x7f0d62800000 [pid 6182] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6182] close(26 [pid 5836] openat(AT_FDCWD, "./19", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6182] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] <... openat resumed>) = 3 [pid 6182] close(27 [pid 5836] newfstatat(3, "", [pid 6182] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 6182] close(28 [pid 5836] getdents64(3, [pid 6182] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] <... getdents64 resumed>0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 6182] close(29 [pid 5836] umount2("./19/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6182] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6182] exit_group(0 [pid 5836] newfstatat(AT_FDCWD, "./19/cgroup", [pid 6194] <... futex resumed>) = ? [pid 6184] <... futex resumed>) = ? [pid 6182] <... exit_group resumed>) = ? [pid 5836] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6194] +++ exited with 0 +++ [pid 6184] +++ exited with 0 +++ [pid 5836] unlink("./19/cgroup") = 0 [pid 6182] +++ exited with 0 +++ [pid 5836] umount2("./19/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5835] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=43, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 6197] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 5836] newfstatat(AT_FDCWD, "./19/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5836] unlink("./19/cgroup.cpu") = 0 [pid 5836] umount2("./19/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5836] newfstatat(AT_FDCWD, "./19/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5836] unlink("./19/cgroup.net") = 0 [pid 5836] umount2("./19/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5836] newfstatat(AT_FDCWD, "./19/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5836] unlink("./19/binderfs") = 0 [pid 5836] umount2("./19/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6197] <... write resumed>) = 1048576 [ 121.377493][ T6189] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 121.388485][ T6189] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 121.405901][ T6192] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 121.410760][ T6189] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6197] munmap(0x7f0d62800000, 138412032 [pid 5835] umount2("./19", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6191] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 6191] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6191] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6187] close(3) = 0 [pid 6187] close(4) = 0 [pid 6187] close(5) = 0 [pid 6187] close(6) = 0 [pid 6187] close(7) = -1 EBADF (Bad file descriptor) [pid 6187] close(8) = -1 EBADF (Bad file descriptor) [pid 6187] close(9) = -1 EBADF (Bad file descriptor) [pid 6187] close(10) = -1 EBADF (Bad file descriptor) [pid 6187] close(11) = -1 EBADF (Bad file descriptor) [pid 6187] close(12 [pid 6190] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 6187] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6190] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6187] close(13 [pid 5835] openat(AT_FDCWD, "./19", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6197] <... munmap resumed>) = 0 [pid 6190] <... futex resumed>) = 0 [pid 6187] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6197] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6190] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6187] close(14 [pid 5835] <... openat resumed>) = 3 [pid 6197] <... openat resumed>) = 4 [pid 6187] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6187] close(15) = -1 EBADF (Bad file descriptor) [pid 6186] close(3 [pid 6187] close(16 [pid 6186] <... close resumed>) = 0 [pid 6187] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6186] close(4 [pid 6187] close(17 [pid 6186] <... close resumed>) = 0 [pid 6187] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6186] close(5 [pid 6187] close(18 [pid 6186] <... close resumed>) = 0 [pid 6187] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6186] close(6 [pid 6187] close(19 [pid 6186] <... close resumed>) = 0 [pid 6187] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6186] close(7 [pid 6187] close(20 [pid 6186] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6187] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6186] close(8 [pid 6187] close(21 [pid 6186] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6187] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6186] close(9 [pid 6187] close(22 [pid 6186] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6187] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6186] close(10 [pid 6187] close(23 [pid 6186] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6187] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6186] close(11 [pid 6187] close(24 [pid 6186] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6187] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6186] close(12 [pid 6187] close(25 [pid 6186] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6187] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6186] close(13 [pid 6187] close(26 [pid 6186] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6187] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6186] close(14 [pid 6187] close(27 [pid 6186] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6197] ioctl(4, LOOP_SET_FD, 3 [pid 6187] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6186] close(15 [pid 5835] newfstatat(3, "", [pid 6187] close(28 [pid 6186] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6187] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6186] close(16 [pid 6187] close(29 [pid 6186] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6187] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6186] close(17 [ 121.429068][ T6189] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 121.431786][ T6193] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 121.440410][ T6189] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 121.463897][ T6189] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6187] exit_group(0 [pid 6186] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6191] <... futex resumed>) = ? [pid 6187] <... exit_group resumed>) = ? [pid 6186] close(18 [pid 6191] +++ exited with 0 +++ [pid 6187] +++ exited with 0 +++ [pid 6186] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6186] close(19 [pid 5837] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=47, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=21 /* 0.21 s */} --- [pid 6186] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5837] restart_syscall(<... resuming interrupted clone ...> [pid 6186] close(20) = -1 EBADF (Bad file descriptor) [pid 6186] close(21) = -1 EBADF (Bad file descriptor) [pid 6186] close(22) = -1 EBADF (Bad file descriptor) [pid 6186] close(23) = -1 EBADF (Bad file descriptor) [pid 6186] close(24) = -1 EBADF (Bad file descriptor) [pid 6186] close(25) = -1 EBADF (Bad file descriptor) [pid 5837] <... restart_syscall resumed>) = 0 [pid 6186] close(26) = -1 EBADF (Bad file descriptor) [pid 6186] close(27 [pid 5837] umount2("./20", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6186] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6186] close(28 [pid 5837] openat(AT_FDCWD, "./20", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6186] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5837] <... openat resumed>) = 3 [pid 6186] close(29 [pid 5837] newfstatat(3, "", [pid 6186] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5837] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 6186] exit_group(0 [pid 5837] getdents64(3, [pid 6195] <... futex resumed>) = ? [pid 6190] <... futex resumed>) = ? [pid 6186] <... exit_group resumed>) = ? [pid 5837] <... getdents64 resumed>0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 5835] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 6197] <... ioctl resumed>) = 0 [pid 6195] +++ exited with 0 +++ [pid 6190] +++ exited with 0 +++ [pid 5837] umount2("./20/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5837] newfstatat(AT_FDCWD, "./20/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5837] unlink("./20/cgroup") = 0 [pid 5837] umount2("./20/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5837] newfstatat(AT_FDCWD, "./20/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5837] unlink("./20/cgroup.cpu") = 0 [pid 5837] umount2("./20/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5837] newfstatat(AT_FDCWD, "./20/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5837] unlink("./20/cgroup.net") = 0 [pid 5837] umount2("./20/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5837] newfstatat(AT_FDCWD, "./20/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5837] unlink("./20/binderfs") = 0 [pid 5837] umount2("./20/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6197] close(3 [pid 5835] getdents64(3, [pid 6197] <... close resumed>) = 0 [ 121.476347][ T6189] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 121.476630][ T6197] loop1: detected capacity change from 0 to 2048 [ 121.495748][ T6189] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 121.507013][ T6189] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6197] close(4 [pid 5835] <... getdents64 resumed>0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 6197] <... close resumed>) = 0 [pid 5835] umount2("./19/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6186] +++ exited with 0 +++ [pid 5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=51, si_uid=0, si_status=0, si_utime=0, si_stime=25 /* 0.25 s */} --- [pid 6197] mkdir("./file2", 0777 [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5833] restart_syscall(<... resuming interrupted clone ...> [pid 6197] <... mkdir resumed>) = 0 [pid 5835] newfstatat(AT_FDCWD, "./19/cgroup", [pid 6197] mount("/dev/loop1", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 5835] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] <... restart_syscall resumed>) = 0 [ 121.520527][ T6189] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 121.521397][ T6193] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 121.546850][ T6193] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 121.550045][ T6189] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 121.561160][ T6193] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5835] unlink("./19/cgroup") = 0 [pid 5835] umount2("./19/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5833] umount2("./20", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5833] openat(AT_FDCWD, "./20", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5835] newfstatat(AT_FDCWD, "./19/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5835] unlink("./19/cgroup.cpu" [pid 5833] <... openat resumed>) = 3 [pid 5835] <... unlink resumed>) = 0 [pid 5833] newfstatat(3, "", [pid 5835] umount2("./19/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5833] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5835] newfstatat(AT_FDCWD, "./19/cgroup.net", [pid 5833] getdents64(3, [pid 5835] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] <... getdents64 resumed>0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 5835] unlink("./19/cgroup.net" [ 121.570287][ T6189] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 121.581748][ T6193] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 121.609259][ T6197] NILFS (loop1): broken superblock, retrying with spare superblock (blocksize = 1024) [ 121.614204][ T5838] udevd[5838]: incorrect nilfs2 checksum on /dev/loop1 [pid 5833] umount2("./20/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5835] <... unlink resumed>) = 0 [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./20/cgroup", [pid 5835] umount2("./19/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5835] newfstatat(AT_FDCWD, "./19/binderfs", [ 121.620935][ T6189] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 121.635829][ T6193] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 121.640895][ T6189] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 121.663937][ T6193] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5833] unlink("./20/cgroup" [pid 6197] <... mount resumed>) = 0 [pid 5835] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] <... unlink resumed>) = 0 [pid 6197] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 5835] unlink("./19/binderfs" [ 121.666352][ T6198] NILFS (loop1): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 121.676641][ T6193] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 121.688245][ T6189] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 121.697760][ T6193] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 121.707997][ T5836] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5833] umount2("./20/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6197] <... openat resumed>) = 3 [pid 5835] <... unlink resumed>) = 0 [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6197] chdir("./file2") = 0 [pid 6197] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6197] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6197] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6196] <... futex resumed>) = 0 [pid 5835] umount2("./19/file2", MNT_FORCE|UMOUNT_NOFOLLOW [ 121.720157][ T6193] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 121.730162][ T5836] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 121.743869][ T6193] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 121.750242][ T5836] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5833] newfstatat(AT_FDCWD, "./20/cgroup.cpu", [pid 6196] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5833] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6197] <... futex resumed>) = 0 [pid 6196] <... futex resumed>) = 1 [pid 6197] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 6196] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6197] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 6197] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6196] <... futex resumed>) = 0 [pid 6197] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6196] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6197] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6196] <... futex resumed>) = 0 [pid 6197] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 6196] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6197] <... openat resumed>) = 4 [pid 6197] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6196] <... futex resumed>) = 0 [pid 6197] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6196] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6197] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6196] <... futex resumed>) = 0 [pid 6197] read(-1, [pid 6196] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6197] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 6197] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6196] <... futex resumed>) = 0 [pid 6197] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6196] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6197] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6196] <... futex resumed>) = 0 [pid 6197] memfd_create("syzkaller", 0 [pid 6196] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6197] <... memfd_create resumed>) = 5 [pid 6197] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 [pid 6197] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5833] unlink("./20/cgroup.cpu" [pid 6197] <... write resumed>) = 524288 [pid 6197] munmap(0x7f0d62800000, 138412032 [pid 5833] <... unlink resumed>) = 0 [pid 6197] <... munmap resumed>) = 0 [pid 6197] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6197] close(5) = 0 [pid 6197] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6196] <... futex resumed>) = 0 [pid 6197] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6196] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6197] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6196] <... futex resumed>) = 0 [pid 6197] fsync(-1 [pid 6196] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6197] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 6197] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6196] <... futex resumed>) = 0 [pid 6197] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6196] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6197] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6196] <... futex resumed>) = 0 [pid 5833] umount2("./20/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6197] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6196] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6197] <... openat resumed>) = 5 [pid 5833] newfstatat(AT_FDCWD, "./20/cgroup.net", [pid 6197] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6196] <... futex resumed>) = 0 [pid 6197] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 6196] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 121.762055][ T6193] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 121.771672][ T5836] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 121.793881][ T5836] NILFS (loop2): disposed unprocessed dirty file(s) when stopping log writer [ 121.803729][ T6188] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 121.815401][ T6188] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6196] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5833] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [ 121.827940][ T6188] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 121.831050][ T6193] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 121.850035][ T6188] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 121.851693][ T6193] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5833] unlink("./20/cgroup.net" [pid 6196] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5833] <... unlink resumed>) = 0 [pid 6196] futex(0x7f0d6aef46dc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6196] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0d6adde000 [pid 6196] mprotect(0x7f0d6addf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5836] <... umount2 resumed>) = 0 [pid 5833] umount2("./20/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6196] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6196] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6adfe990, parent_tid=0x7f0d6adfe990, exit_signal=0, stack=0x7f0d6adde000, stack_size=0x20300, tls=0x7f0d6adfe6c0}./strace-static-x86_64: Process 6199 attached [pid 6199] rseq(0x7f0d6adfefe0, 0x20, 0, 0x53053053 [pid 6196] <... clone3 resumed> => {parent_tid=[54]}, 88) = 54 [pid 6199] <... rseq resumed>) = 0 [pid 6196] rt_sigprocmask(SIG_SETMASK, [], [pid 6199] set_robust_list(0x7f0d6adfe9a0, 24 [pid 6196] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6199] <... set_robust_list resumed>) = 0 [pid 6196] futex(0x7f0d6aef46d8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6199] rt_sigprocmask(SIG_SETMASK, [], [pid 6196] <... futex resumed>) = 0 [pid 6199] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6196] futex(0x7f0d6aef46dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6199] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 6197] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 6197] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6197] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5836] umount2("./19/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 121.861140][ T6188] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 121.873617][ T6193] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 121.896261][ T6188] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 121.897053][ T6198] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 121.907313][ T6188] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5833] newfstatat(AT_FDCWD, "./20/binderfs", [pid 5836] newfstatat(AT_FDCWD, "./19/file2", [pid 5833] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6199] <... openat resumed>) = 6 [pid 6199] futex(0x7f0d6aef46dc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6196] <... futex resumed>) = 0 [pid 6199] futex(0x7f0d6aef46d8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6196] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6197] <... futex resumed>) = 0 [pid 6196] <... futex resumed>) = 1 [pid 6197] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 6196] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5836] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [ 121.929303][ T6188] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 121.930503][ T6193] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 121.943806][ T6188] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 121.964110][ T6188] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5833] unlink("./20/binderfs" [pid 5836] umount2("./19/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5833] <... unlink resumed>) = 0 [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5833] umount2("./20/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6196] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [ 121.975304][ T6188] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 121.980078][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 121.987503][ T6188] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 122.008553][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 122.009383][ T6188] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 122.033016][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 122.034313][ T6188] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 122.044573][ T6192] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 122.055726][ T6188] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5836] openat(AT_FDCWD, "./19/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5836] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 5836] getdents64(4, 0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 5836] getdents64(4, 0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 5836] close(4) = 0 [pid 5836] rmdir("./19/file2") = 0 [pid 5836] getdents64(3, 0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 5836] close(3) = 0 [pid 5836] rmdir("./19") = 0 [ 122.068513][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 122.093551][ T6192] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 122.109984][ T6192] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 122.117300][ T5835] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5836] mkdir("./20", 0777) = 0 [pid 5836] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5836] ioctl(3, LOOP_CLR_FD) = 0 [pid 5836] close(3) = 0 [ 122.121656][ T5837] NILFS (loop4): disposed unprocessed dirty file(s) when stopping log writer [ 122.139823][ T5835] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 122.157767][ T6192] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5836] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6200 attached [pid 6200] set_robust_list(0x55555fa3c6a0, 24 [pid 5836] <... clone resumed>, child_tidptr=0x55555fa3c690) = 48 [pid 6200] <... set_robust_list resumed>) = 0 [pid 6200] chdir("./20") = 0 [pid 6200] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6200] setpgid(0, 0) = 0 [ 122.173836][ T6192] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 122.188087][ T5835] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 122.200281][ T6192] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 122.219608][ T5835] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6200] symlink("/syzcgroup/unified/syz2", "./cgroup") = 0 [pid 5837] <... umount2 resumed>) = 0 [pid 6200] symlink("/syzcgroup/cpu/syz2", "./cgroup.cpu") = 0 [pid 5837] umount2("./20/file2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 6200] symlink("/syzcgroup/net/syz2", "./cgroup.net" [pid 5837] newfstatat(AT_FDCWD, "./20/file2", [pid 6200] <... symlink resumed>) = 0 [pid 6200] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5837] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5837] umount2("./20/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6200] <... openat resumed>) = 3 [pid 6200] write(3, "1000", 4 [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 122.240719][ T6192] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 122.249593][ T5835] NILFS (loop3): disposed unprocessed dirty file(s) when stopping log writer [ 122.253395][ T6192] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6200] <... write resumed>) = 4 [pid 5837] openat(AT_FDCWD, "./20/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6200] close(3 [pid 5837] <... openat resumed>) = 4 [pid 5835] <... umount2 resumed>) = 0 [pid 6197] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 5837] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 6197] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] getdents64(4, [pid 6197] <... futex resumed>) = 0 [pid 5837] <... getdents64 resumed>0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 6197] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5837] getdents64(4, 0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 5837] close(4) = 0 [pid 5837] rmdir("./20/file2") = 0 [pid 5837] getdents64(3, 0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 5837] close(3) = 0 [pid 5837] rmdir("./20") = 0 [pid 5837] mkdir("./21", 0777) = 0 [pid 5837] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5837] ioctl(3, LOOP_CLR_FD) = 0 [pid 5837] close(3 [pid 6200] <... close resumed>) = 0 [ 122.284970][ T6198] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 122.296844][ T6192] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 122.310806][ T6192] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 122.325049][ T6192] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6196] close(3 [pid 5837] <... close resumed>) = 0 [pid 5835] umount2("./19/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6200] symlink("/dev/binderfs", "./binderfs" [pid 6196] <... close resumed>) = 0 [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6200] <... symlink resumed>) = 0 [pid 6196] close(4 [pid 5837] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5835] newfstatat(AT_FDCWD, "./19/file2", executing program [pid 6200] write(1, "executing program\n", 18 [pid 6196] <... close resumed>) = 0 [pid 5835] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6200] <... write resumed>) = 18 [pid 6196] close(5 [pid 6200] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5835] umount2("./19/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6200] <... futex resumed>) = 0 [pid 6196] <... close resumed>) = 0 [pid 6200] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6200] <... rt_sigaction resumed>NULL, 8) = 0 [pid 6196] close(6 [pid 6200] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5835] openat(AT_FDCWD, "./19/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6200] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6196] <... close resumed>) = 0 ./strace-static-x86_64: Process 6201 attached [pid 6200] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5835] <... openat resumed>) = 4 [pid 6200] <... mmap resumed>) = 0x7f0d6adff000 [pid 6196] close(7 [pid 6201] set_robust_list(0x55555fa3c6a0, 24 [pid 6200] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE [pid 5837] <... clone resumed>, child_tidptr=0x55555fa3c690) = 49 [pid 5835] newfstatat(4, "", [pid 6201] <... set_robust_list resumed>) = 0 [pid 6200] <... mprotect resumed>) = 0 [pid 6196] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5835] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 6201] chdir("./21" [pid 6200] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6196] close(8 [pid 5835] getdents64(4, [pid 6200] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6196] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5835] <... getdents64 resumed>0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 6200] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0} [pid 6196] close(9 [pid 5835] getdents64(4, [pid 6201] <... chdir resumed>) = 0 [pid 6196] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5835] <... getdents64 resumed>0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 6200] <... clone3 resumed> => {parent_tid=[49]}, 88) = 49 [pid 6196] close(10 [pid 5835] close(4./strace-static-x86_64: Process 6202 attached [pid 6201] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6200] rt_sigprocmask(SIG_SETMASK, [], [pid 6196] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5835] <... close resumed>) = 0 [pid 6202] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 6201] <... prctl resumed>) = 0 [pid 6200] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6196] close(11 [pid 5835] rmdir("./19/file2" [pid 6202] <... rseq resumed>) = 0 [pid 6201] setpgid(0, 0 [pid 6200] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6196] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5835] <... rmdir resumed>) = 0 [pid 6202] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 6201] <... setpgid resumed>) = 0 [pid 6200] <... futex resumed>) = 0 [pid 6196] close(12 [pid 5835] getdents64(3, [pid 6202] <... set_robust_list resumed>) = 0 [pid 6200] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6196] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5835] <... getdents64 resumed>0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 6202] rt_sigprocmask(SIG_SETMASK, [], [pid 6201] symlink("/syzcgroup/unified/syz4", "./cgroup" [pid 6196] close(13 [pid 5835] close(3 [pid 6202] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6196] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5835] <... close resumed>) = 0 [pid 6196] close(14 [pid 5835] rmdir("./19" [pid 6202] memfd_create("syzkaller", 0 [pid 6201] <... symlink resumed>) = 0 [pid 6196] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5835] <... rmdir resumed>) = 0 [pid 6202] <... memfd_create resumed>) = 3 [pid 6201] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu" [pid 6196] close(15 [pid 6202] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6196] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5835] mkdir("./20", 0777 [pid 6202] <... mmap resumed>) = 0x7f0d62800000 [ 122.336839][ T6192] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 122.366822][ T6192] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6201] <... symlink resumed>) = 0 [pid 6196] close(16 [pid 5835] <... mkdir resumed>) = 0 [pid 6202] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6196] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5835] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6201] symlink("/syzcgroup/net/syz4", "./cgroup.net" [pid 6196] close(17 [pid 5835] <... openat resumed>) = 3 [pid 6196] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5835] ioctl(3, LOOP_CLR_FD [pid 6201] <... symlink resumed>) = 0 [pid 6196] close(18) = -1 EBADF (Bad file descriptor) [pid 6201] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5835] <... ioctl resumed>) = 0 [pid 6196] close(19 [pid 6201] <... openat resumed>) = 3 [pid 6196] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5835] close(3executing program [pid 6201] write(3, "1000", 4 [pid 6196] close(20 [pid 5835] <... close resumed>) = 0 [pid 6196] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5835] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6203 attached [pid 6196] close(21 [pid 6203] set_robust_list(0x55555fa3c6a0, 24 [pid 6196] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6196] close(22) = -1 EBADF (Bad file descriptor) [pid 6196] close(23 [pid 6203] <... set_robust_list resumed>) = 0 [pid 6196] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5835] <... clone resumed>, child_tidptr=0x55555fa3c690) = 46 [pid 6203] chdir("./20" [pid 6196] close(24 [pid 6203] <... chdir resumed>) = 0 [pid 6196] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6203] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6196] close(25 [pid 6203] <... prctl resumed>) = 0 [pid 6196] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6203] setpgid(0, 0 [pid 6196] close(26 [pid 6203] <... setpgid resumed>) = 0 [pid 6196] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6203] symlink("/syzcgroup/unified/syz3", "./cgroup" [pid 6196] close(27 [pid 6203] <... symlink resumed>) = 0 [pid 6196] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6203] symlink("/syzcgroup/cpu/syz3", "./cgroup.cpu" [pid 6196] close(28 [pid 6203] <... symlink resumed>) = 0 [pid 6196] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6203] symlink("/syzcgroup/net/syz3", "./cgroup.net" [pid 6196] close(29 [pid 6203] <... symlink resumed>) = 0 [pid 6196] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6203] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6196] exit_group(0 [pid 6203] <... openat resumed>) = 3 [pid 6201] <... write resumed>) = 4 [pid 6196] <... exit_group resumed>) = ? [pid 6203] write(3, "1000", 4) = 4 [pid 6203] close(3) = 0 [pid 6203] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6203] write(1, "executing program\n", 18) = 18 [pid 6203] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6203] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, NULL, 8) = 0 [pid 6203] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6203] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0d6adff000 [pid 6203] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6203] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6203] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0}./strace-static-x86_64: Process 6204 attached [pid 6204] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 6203] <... clone3 resumed> => {parent_tid=[47]}, 88) = 47 [pid 6204] <... rseq resumed>) = 0 [pid 6203] rt_sigprocmask(SIG_SETMASK, [], [pid 6204] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 6203] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6204] <... set_robust_list resumed>) = 0 [pid 6203] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6204] rt_sigprocmask(SIG_SETMASK, [], [pid 6203] <... futex resumed>) = 0 [pid 6201] close(3 [pid 6204] <... rt_sigprocmask resumed>NULL, 8) = 0 [ 122.384300][ T6192] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6203] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6204] memfd_create("syzkaller", 0 [pid 6201] <... close resumed>) = 0 [pid 6204] <... memfd_create resumed>) = 3 [pid 6204] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 [pid 6201] symlink("/dev/binderfs", "./binderfs" [pid 6202] <... write resumed>) = 1048576 [pid 6201] <... symlink resumed>) = 0 [pid 6199] <... futex resumed>) = ? [pid 6197] <... futex resumed>) = ? [pid 6202] munmap(0x7f0d62800000, 138412032 [pid 6201] write(1, "executing program\n", 18 [pid 6199] +++ exited with 0 +++ [pid 6197] +++ exited with 0 +++ [pid 6196] +++ exited with 0 +++ [pid 5834] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=52, si_uid=0, si_status=0, si_utime=0, si_stime=25 /* 0.25 s */} --- [pid 6202] <... munmap resumed>) = 0 [pid 6201] <... write resumed>) = 18 executing program [pid 6201] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5834] umount2("./21", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6202] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 6201] <... futex resumed>) = 0 [pid 6201] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6201] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5834] openat(AT_FDCWD, "./21", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6201] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5834] <... openat resumed>) = 3 [pid 6204] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6202] <... openat resumed>) = 4 [pid 6201] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6204] <... write resumed>) = 1048576 [pid 6202] ioctl(4, LOOP_SET_FD, 3 [pid 6201] <... mmap resumed>) = 0x7f0d6adff000 [pid 5834] newfstatat(3, "", [pid 6204] munmap(0x7f0d62800000, 138412032 [pid 5834] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 6204] <... munmap resumed>) = 0 [pid 5834] getdents64(3, [pid 6204] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5834] <... getdents64 resumed>0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 6204] <... openat resumed>) = 4 [pid 5834] umount2("./21/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6204] ioctl(4, LOOP_SET_FD, 3 [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 122.439589][ T6192] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 122.457956][ T5833] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 122.471705][ T5833] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6201] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE [pid 6204] <... ioctl resumed>) = 0 [pid 6201] <... mprotect resumed>) = 0 [pid 5834] newfstatat(AT_FDCWD, "./21/cgroup", [pid 6204] close(3 [pid 5834] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6204] <... close resumed>) = 0 [pid 6201] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5834] unlink("./21/cgroup" [pid 6204] close(4 [pid 5834] <... unlink resumed>) = 0 [pid 6204] <... close resumed>) = 0 [pid 5834] umount2("./21/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6204] mkdir("./file2", 0777 [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6204] <... mkdir resumed>) = 0 [pid 5834] newfstatat(AT_FDCWD, "./21/cgroup.cpu", [pid 6204] mount("/dev/loop3", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 5834] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5834] unlink("./21/cgroup.cpu") = 0 [pid 5834] umount2("./21/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6201] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6201] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0} [pid 5834] newfstatat(AT_FDCWD, "./21/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5834] unlink("./21/cgroup.net") = 0 [pid 5834] umount2("./21/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5834] newfstatat(AT_FDCWD, "./21/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 ./strace-static-x86_64: Process 6206 attached [pid 5834] unlink("./21/binderfs" [pid 6206] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 6202] <... ioctl resumed>) = 0 [pid 6201] <... clone3 resumed> => {parent_tid=[50]}, 88) = 50 [pid 5834] <... unlink resumed>) = 0 [pid 6206] <... rseq resumed>) = 0 [pid 6201] rt_sigprocmask(SIG_SETMASK, [], [ 122.486768][ T6204] loop3: detected capacity change from 0 to 2048 [ 122.487312][ T6202] loop2: detected capacity change from 0 to 2048 [ 122.504242][ T5833] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 122.510646][ T6204] NILFS (loop3): broken superblock, retrying with spare superblock (blocksize = 1024) [ 122.528161][ T5833] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6202] close(3 [pid 6206] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 6202] <... close resumed>) = 0 [pid 6201] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5834] umount2("./21/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6204] <... mount resumed>) = 0 [pid 6204] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY) = 3 [pid 6204] chdir("./file2") = 0 [pid 6204] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6204] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6203] <... futex resumed>) = 0 [pid 6204] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6203] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6204] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6203] <... futex resumed>) = 0 [pid 6204] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 6203] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6204] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 6204] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6203] <... futex resumed>) = 0 [pid 6204] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6203] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6204] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6203] <... futex resumed>) = 0 [pid 6204] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 6203] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6204] <... openat resumed>) = 4 [pid 6204] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6203] <... futex resumed>) = 0 [pid 6204] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6203] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6204] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6203] <... futex resumed>) = 0 [pid 6204] read(-1, [pid 6203] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6204] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 6204] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6203] <... futex resumed>) = 0 [pid 6206] <... set_robust_list resumed>) = 0 [pid 6204] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6203] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6202] close(4 [pid 6201] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6206] rt_sigprocmask(SIG_SETMASK, [], [pid 6204] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6203] <... futex resumed>) = 0 [pid 6202] <... close resumed>) = 0 [pid 6201] <... futex resumed>) = 0 [pid 6206] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6204] memfd_create("syzkaller", 0 [pid 6203] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6204] <... memfd_create resumed>) = 5 [pid 6204] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 [pid 6201] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6206] memfd_create("syzkaller", 0) = 3 [pid 6204] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 6202] mkdir("./file2", 0777 [pid 6206] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6202] <... mkdir resumed>) = 0 [pid 6206] <... mmap resumed>) = 0x7f0d62800000 [pid 6202] mount("/dev/loop2", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 6206] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6204] <... write resumed>) = 524288 [ 122.541919][ T6205] NILFS (loop3): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 122.550560][ T5833] NILFS (loop0): disposed unprocessed dirty file(s) when stopping log writer [ 122.572814][ T6198] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6204] munmap(0x7f0d62800000, 138412032 [pid 6206] <... write resumed>) = 1048576 [pid 6204] <... munmap resumed>) = 0 [pid 6206] munmap(0x7f0d62800000, 138412032) = 0 [pid 6206] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 6206] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6206] close(3) = 0 [ 122.591051][ T6198] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 122.603843][ T6202] NILFS (loop2): broken superblock, retrying with spare superblock (blocksize = 1024) [ 122.604316][ T6198] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 122.625948][ T6198] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6206] close(4) = 0 [pid 6204] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6206] mkdir("./file2", 0777) = 0 [ 122.636847][ T6206] loop4: detected capacity change from 0 to 2048 [ 122.647347][ T6198] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 122.659154][ T6198] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 122.667134][ T5855] udevd[5855]: incorrect nilfs2 checksum on /dev/loop2 [ 122.671709][ T6198] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6206] mount("/dev/loop4", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 6204] <... openat resumed>) = -1 EBUSY (Device or resource busy) [ 122.693884][ T6206] NILFS (loop4): broken superblock, retrying with spare superblock (blocksize = 1024) [ 122.698499][ T6198] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 122.715749][ T6207] NILFS (loop2): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 122.719955][ T6198] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6204] close(5) = 0 [pid 6202] <... mount resumed>) = 0 [ 122.741389][ T6198] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 122.746613][ T5838] udevd[5838]: incorrect nilfs2 checksum on /dev/loop4 [ 122.753925][ T6198] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 122.771659][ T6198] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 122.783020][ T6198] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 5833] <... umount2 resumed>) = 0 [pid 6206] <... mount resumed>) = 0 [pid 6204] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6202] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 6206] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY [pid 6204] <... futex resumed>) = 1 [pid 6202] <... openat resumed>) = 3 [pid 5833] umount2("./20/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6206] <... openat resumed>) = 3 [pid 6204] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6202] chdir("./file2" [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6206] chdir("./file2" [pid 6202] <... chdir resumed>) = 0 [pid 5833] newfstatat(AT_FDCWD, "./20/file2", [pid 6206] <... chdir resumed>) = 0 [pid 6203] <... futex resumed>) = 0 [pid 6202] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5833] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6206] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6202] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5833] umount2("./20/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6206] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6202] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5833] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6206] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6203] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6202] <... futex resumed>) = 1 [pid 6200] <... futex resumed>) = 0 [pid 5833] openat(AT_FDCWD, "./20/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6203] <... futex resumed>) = 1 [pid 6206] <... futex resumed>) = 1 [pid 6204] <... futex resumed>) = 0 [pid 6201] <... futex resumed>) = 0 [pid 5833] <... openat resumed>) = 4 [pid 6206] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 6204] fsync(-1 [pid 6201] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5833] newfstatat(4, "", [pid 6206] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 6204] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 6201] <... futex resumed>) = 0 [pid 5833] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 6206] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6204] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6201] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5833] getdents64(4, [pid 6206] <... futex resumed>) = 0 [pid 6204] <... futex resumed>) = 0 [pid 6201] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5833] <... getdents64 resumed>0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 6206] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6204] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6201] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5833] getdents64(4, [pid 6206] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6201] <... futex resumed>) = 0 [pid 5833] <... getdents64 resumed>0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 6206] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 6202] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6206] <... openat resumed>) = 4 [pid 6201] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5833] close(4 [pid 6206] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6201] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5833] <... close resumed>) = 0 [pid 6206] <... futex resumed>) = 0 [pid 6201] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6206] read(-1, [pid 5833] rmdir("./20/file2" [pid 6206] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 6201] <... futex resumed>) = 0 [pid 5833] <... rmdir resumed>) = 0 [pid 6206] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6201] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5833] getdents64(3, [pid 6206] <... futex resumed>) = 0 [pid 6201] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5833] <... getdents64 resumed>0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 6206] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6201] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5833] close(3 [pid 6206] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6201] <... futex resumed>) = 0 [pid 5833] <... close resumed>) = 0 [pid 6206] memfd_create("syzkaller", 0 [pid 6201] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5833] rmdir("./20" [pid 6206] <... memfd_create resumed>) = 5 [pid 5833] <... rmdir resumed>) = 0 [ 122.786138][ T6208] NILFS (loop4): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 122.793826][ T6198] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 122.815520][ T6198] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 122.828560][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6206] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 [pid 5833] mkdir("./21", 0777) = 0 [pid 5833] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 6206] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5833] ioctl(3, LOOP_CLR_FD) = 0 [pid 5833] close(3) = 0 [pid 6206] <... write resumed>) = 524288 [pid 6203] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6200] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6203] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6202] <... futex resumed>) = 0 [pid 6200] <... futex resumed>) = 1 [pid 6203] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6202] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 6200] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6204] <... futex resumed>) = 0 [pid 6203] <... futex resumed>) = 1 [pid 6202] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 6204] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6203] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6202] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6200] <... futex resumed>) = 0 [pid 6202] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6200] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6202] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6200] <... futex resumed>) = 0 [pid 6202] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 6200] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6202] <... openat resumed>) = 4 [pid 5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6206] munmap(0x7f0d62800000, 138412032 [pid 6202] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6206] <... munmap resumed>) = 0 [pid 6202] <... futex resumed>) = 1 [pid 6200] <... futex resumed>) = 0 [pid 6202] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6200] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6202] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6200] <... futex resumed>) = 0 [pid 6206] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6202] read(-1, [pid 6200] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6202] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 6202] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6200] <... futex resumed>) = 0 [pid 6202] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6200] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6206] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6202] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6200] <... futex resumed>) = 0 [pid 6202] memfd_create("syzkaller", 0 [pid 6200] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5833] <... clone resumed>, child_tidptr=0x55555fa3c690) = 54 [pid 6204] <... openat resumed>) = 5 [pid 6202] <... memfd_create resumed>) = 5 [pid 6204] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6202] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6206] close(5 [pid 6204] <... futex resumed>) = 1 [pid 6203] <... futex resumed>) = 0 [pid 6202] <... mmap resumed>) = 0x7f0d62800000 ./strace-static-x86_64: Process 6209 attached [pid 6204] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 6203] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5834] <... umount2 resumed>) = 0 [pid 6209] set_robust_list(0x55555fa3c6a0, 24 [pid 6203] <... futex resumed>) = 0 [pid 5834] umount2("./21/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6203] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [ 122.840277][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 122.852603][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 122.864861][ T5834] NILFS (loop1): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 122.876253][ T5834] NILFS (loop1): disposed unprocessed dirty file(s) when stopping log writer [pid 6202] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5834] newfstatat(AT_FDCWD, "./21/file2", [pid 6206] <... close resumed>) = 0 [pid 6202] <... write resumed>) = 524288 [pid 5834] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6206] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6209] <... set_robust_list resumed>) = 0 [pid 6202] munmap(0x7f0d62800000, 138412032 [pid 5834] umount2("./21/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6206] <... futex resumed>) = 1 [pid 6204] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 6201] <... futex resumed>) = 0 [pid 6209] chdir("./21" [pid 6206] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6204] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6201] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5834] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6209] <... chdir resumed>) = 0 [pid 6206] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6204] <... futex resumed>) = 1 [pid 6203] <... futex resumed>) = 0 [pid 6202] <... munmap resumed>) = 0 [pid 6201] <... futex resumed>) = 0 [pid 5834] openat(AT_FDCWD, "./21/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6209] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6206] fsync(-1 [pid 6204] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6203] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6202] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 6201] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6209] <... prctl resumed>) = 0 [pid 6206] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 6204] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6203] <... futex resumed>) = 0 [pid 6202] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5834] <... openat resumed>) = 4 [pid 6209] setpgid(0, 0 [pid 6206] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6204] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 6203] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6202] close(5 [pid 5834] newfstatat(4, "", [pid 6209] <... setpgid resumed>) = 0 [pid 6206] <... futex resumed>) = 1 [pid 6204] <... openat resumed>) = 6 [pid 6201] <... futex resumed>) = 0 [pid 5834] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 6209] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 6206] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6201] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5834] getdents64(4, [pid 6209] <... symlink resumed>) = 0 [pid 6206] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6204] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6201] <... futex resumed>) = 0 [pid 5834] <... getdents64 resumed>0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 6209] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu" [pid 6206] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6204] <... futex resumed>) = 1 [pid 6203] <... futex resumed>) = 0 [pid 6201] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5834] getdents64(4, [pid 6209] <... symlink resumed>) = 0 [pid 6206] <... openat resumed>) = 5 [pid 6204] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6203] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6202] <... close resumed>) = 0 [pid 5834] <... getdents64 resumed>0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 6209] symlink("/syzcgroup/net/syz0", "./cgroup.net" [pid 6206] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6204] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6203] <... futex resumed>) = 0 [pid 6202] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5834] close(4 [pid 6209] <... symlink resumed>) = 0 [pid 6206] <... futex resumed>) = 1 [pid 6204] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 6203] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6201] <... futex resumed>) = 0 [pid 5834] <... close resumed>) = 0 [pid 6209] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6206] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6202] <... futex resumed>) = 1 [pid 6201] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6200] <... futex resumed>) = 0 [pid 5834] rmdir("./21/file2" [pid 6209] <... openat resumed>) = 3 [pid 6206] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6202] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6201] <... futex resumed>) = 0 [pid 6200] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5834] <... rmdir resumed>) = 0 [pid 6209] write(3, "1000", 4 [pid 6206] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 6202] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6201] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6200] <... futex resumed>) = 0 [pid 5834] getdents64(3, [pid 6209] <... write resumed>) = 4 [ 122.915262][ T6205] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 executing program [pid 6202] fsync(-1 [pid 5834] <... getdents64 resumed>0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 6209] close(3 [pid 6202] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 5834] close(3 [pid 6209] <... close resumed>) = 0 [pid 6202] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5834] <... close resumed>) = 0 [pid 6209] symlink("/dev/binderfs", "./binderfs" [pid 6202] <... futex resumed>) = 0 [pid 5834] rmdir("./21" [pid 6209] <... symlink resumed>) = 0 [pid 6202] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5834] <... rmdir resumed>) = 0 [pid 6209] write(1, "executing program\n", 18 [pid 5834] mkdir("./22", 0777 [pid 6209] <... write resumed>) = 18 [pid 5834] <... mkdir resumed>) = 0 [pid 6209] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5834] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6209] <... futex resumed>) = 0 [pid 5834] <... openat resumed>) = 3 [pid 6209] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, [pid 5834] ioctl(3, LOOP_CLR_FD [pid 6209] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5834] <... ioctl resumed>) = 0 [pid 6209] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5834] close(3 [pid 6209] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6200] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5834] <... close resumed>) = 0 [pid 6209] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6206] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 5834] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6210 attached [pid 6209] <... mmap resumed>) = 0x7f0d6adff000 [pid 6206] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6200] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6210] set_robust_list(0x55555fa3c6a0, 24 [pid 6209] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE [pid 6206] <... futex resumed>) = 1 [pid 6201] <... futex resumed>) = 0 [pid 6200] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6210] <... set_robust_list resumed>) = 0 [pid 6209] <... mprotect resumed>) = 0 [pid 6206] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6202] <... futex resumed>) = 0 [pid 6201] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6200] <... futex resumed>) = 1 [pid 6210] chdir("./22" [pid 6209] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6206] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6203] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6202] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6201] <... futex resumed>) = 0 [pid 6200] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5834] <... clone resumed>, child_tidptr=0x55555fa3c690) = 55 [pid 6210] <... chdir resumed>) = 0 [pid 6209] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6206] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 6202] <... openat resumed>) = 5 [pid 6201] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6209] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0}./strace-static-x86_64: Process 6211 attached [pid 6211] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 6209] <... clone3 resumed> => {parent_tid=[55]}, 88) = 55 [pid 6211] <... rseq resumed>) = 0 [pid 6209] rt_sigprocmask(SIG_SETMASK, [], [pid 6202] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6211] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 6209] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6206] <... openat resumed>) = 6 [pid 6202] <... futex resumed>) = 1 [pid 6200] <... futex resumed>) = 0 [ 122.960772][ T6208] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6211] <... set_robust_list resumed>) = 0 [pid 6210] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6209] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6206] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6202] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6200] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6210] <... prctl resumed>) = 0 [pid 6206] <... futex resumed>) = 1 [pid 6202] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6201] <... futex resumed>) = 0 [pid 6200] <... futex resumed>) = 0 [pid 6210] setpgid(0, 0 [pid 6202] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 6200] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6210] <... setpgid resumed>) = 0 [pid 6206] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 6201] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6211] rt_sigprocmask(SIG_SETMASK, [], [pid 6209] <... futex resumed>) = 0 [pid 6201] <... futex resumed>) = 0 [pid 6211] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6209] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6211] memfd_create("syzkaller", 0 [pid 6201] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6211] <... memfd_create resumed>) = 3 [pid 6211] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 [pid 6210] symlink("/syzcgroup/unified/syz1", "./cgroup" [pid 6211] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6210] <... symlink resumed>) = 0 [pid 6210] symlink("/syzcgroup/cpu/syz1", "./cgroup.cpu") = 0 [pid 6210] symlink("/syzcgroup/net/syz1", "./cgroup.net") = 0 [pid 6210] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6202] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 6210] write(3, "1000", 4) = 4 [pid 6202] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6210] close(3 [pid 6202] <... futex resumed>) = 1 [pid 6200] <... futex resumed>) = 0 [pid 6211] <... write resumed>) = 1048576 [pid 6210] <... close resumed>) = 0 [ 123.024348][ T6207] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6210] symlink("/dev/binderfs", "./binderfs" [pid 6202] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 6200] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6211] munmap(0x7f0d62800000, 138412032 [pid 6210] <... symlink resumed>) = 0 [pid 6211] <... munmap resumed>) = 0 [pid 6201] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6211] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6211] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6211] close(3) = 0 [pid 6211] close(4) = 0 [pid 6211] mkdir("./file2", 0777) = 0 [ 123.079199][ T6211] loop0: detected capacity change from 0 to 2048 [pid 6211] mount("/dev/loop0", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 6200] <... futex resumed>) = 0 [pid 6200] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6211] <... mount resumed>) = 0 [pid 6211] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY) = 3 [pid 6211] chdir("./file2") = 0 [pid 6211] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6211] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6209] <... futex resumed>) = 0 [pid 6211] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6210] write(1, "executing program\n", 18 executing program [pid 6209] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6206] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 6211] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6210] <... write resumed>) = 18 [pid 6209] <... futex resumed>) = 0 [pid 6206] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6202] <... openat resumed>) = 6 [pid 6211] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 6210] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6209] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6206] <... futex resumed>) = 0 [pid 6202] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6211] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 6210] <... futex resumed>) = 0 [pid 6206] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6202] <... futex resumed>) = 1 [pid 6201] close(3 [pid 6200] <... futex resumed>) = 0 [pid 6211] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6210] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, [pid 6202] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6201] <... close resumed>) = 0 [pid 6200] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6211] <... futex resumed>) = 1 [pid 6210] <... rt_sigaction resumed>NULL, 8) = 0 [pid 6209] <... futex resumed>) = 0 [pid 6202] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6201] close(4 [pid 6200] <... futex resumed>) = 0 [pid 6211] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6210] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 6209] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6202] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 6201] <... close resumed>) = 0 [pid 6200] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6211] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6210] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6209] <... futex resumed>) = 0 [pid 6201] close(5 [pid 6211] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 6209] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6201] <... close resumed>) = 0 [pid 6210] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6211] <... openat resumed>) = 4 [pid 6201] close(6 [pid 6211] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6210] <... mmap resumed>) = 0x7f0d6adff000 [pid 6211] <... futex resumed>) = 1 [pid 6210] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE [pid 6209] <... futex resumed>) = 0 [pid 6201] <... close resumed>) = 0 [pid 6211] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6210] <... mprotect resumed>) = 0 [pid 6209] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6201] close(7 [pid 6211] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6210] rt_sigprocmask(SIG_BLOCK, ~[], [pid 6209] <... futex resumed>) = 0 [pid 6201] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6211] read(-1, [pid 6210] <... rt_sigprocmask resumed>[], 8) = 0 [pid 6209] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6201] close(8 [pid 6211] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 6210] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0} [pid 6201] <... close resumed>) = -1 EBADF (Bad file descriptor) ./strace-static-x86_64: Process 6213 attached [pid 6211] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6201] close(9 [pid 6213] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 6211] <... futex resumed>) = 1 [pid 6210] <... clone3 resumed> => {parent_tid=[56]}, 88) = 56 [pid 6209] <... futex resumed>) = 0 [pid 6201] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6213] <... rseq resumed>) = 0 [pid 6211] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6210] rt_sigprocmask(SIG_SETMASK, [], [pid 6209] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6201] close(10 [pid 6213] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 6211] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6210] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6209] <... futex resumed>) = 0 [pid 6201] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6213] <... set_robust_list resumed>) = 0 [pid 6211] memfd_create("syzkaller", 0 [pid 6210] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6209] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6201] close(11 [pid 6213] rt_sigprocmask(SIG_SETMASK, [], [pid 6211] <... memfd_create resumed>) = 5 [pid 6210] <... futex resumed>) = 0 [pid 6201] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6213] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6211] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6210] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6201] close(12 [pid 6213] memfd_create("syzkaller", 0 [pid 6211] <... mmap resumed>) = 0x7f0d62800000 [pid 6201] <... close resumed>) = -1 EBADF (Bad file descriptor) [ 123.131398][ T6211] NILFS (loop0): broken superblock, retrying with spare superblock (blocksize = 1024) [ 123.150609][ T6212] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 123.157152][ T6208] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6213] <... memfd_create resumed>) = 3 [pid 6211] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 6201] close(13 [pid 6213] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6201] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6213] <... mmap resumed>) = 0x7f0d62800000 [pid 6201] close(14) = -1 EBADF (Bad file descriptor) [pid 6201] close(15) = -1 EBADF (Bad file descriptor) [pid 6201] close(16) = -1 EBADF (Bad file descriptor) [pid 6201] close(17) = -1 EBADF (Bad file descriptor) [pid 6201] close(18) = -1 EBADF (Bad file descriptor) [pid 6201] close(19) = -1 EBADF (Bad file descriptor) [pid 6201] close(20) = -1 EBADF (Bad file descriptor) [pid 6201] close(21) = -1 EBADF (Bad file descriptor) [pid 6201] close(22 [pid 6213] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6211] <... write resumed>) = 524288 [pid 6201] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6211] munmap(0x7f0d62800000, 138412032 [pid 6201] close(23 [pid 6200] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6211] <... munmap resumed>) = 0 [pid 6201] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6211] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6201] close(24) = -1 EBADF (Bad file descriptor) [pid 6211] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6201] close(25) = -1 EBADF (Bad file descriptor) [pid 6213] <... write resumed>) = 1048576 [pid 6211] close(5 [pid 6201] close(26) = -1 EBADF (Bad file descriptor) [pid 6201] close(27) = -1 EBADF (Bad file descriptor) [pid 6201] close(28) = -1 EBADF (Bad file descriptor) [pid 6201] close(29 [pid 6213] munmap(0x7f0d62800000, 138412032 [pid 6201] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6201] exit_group(0) = ? [pid 6206] <... futex resumed>) = ? [pid 6206] +++ exited with 0 +++ [pid 6201] +++ exited with 0 +++ [pid 5837] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=49, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 6213] <... munmap resumed>) = 0 [pid 6211] <... close resumed>) = 0 [pid 5837] umount2("./21", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6213] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5837] openat(AT_FDCWD, "./21", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6213] <... openat resumed>) = 4 [pid 5837] <... openat resumed>) = 3 [pid 5837] newfstatat(3, "", [pid 6213] ioctl(4, LOOP_SET_FD, 3 [pid 5837] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 6211] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] getdents64(3, [pid 6211] <... futex resumed>) = 1 [pid 6209] <... futex resumed>) = 0 [pid 6211] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6209] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6211] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6209] <... futex resumed>) = 0 [pid 6211] fsync(-1 [pid 6209] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6211] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 6211] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6209] <... futex resumed>) = 0 [pid 6211] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6209] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6211] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6209] <... futex resumed>) = 0 [pid 6211] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6209] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6213] <... ioctl resumed>) = 0 [pid 6211] <... openat resumed>) = 5 [pid 6204] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 5837] <... getdents64 resumed>0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 6213] close(3 [pid 6211] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] umount2("./21/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6213] <... close resumed>) = 0 [pid 6211] <... futex resumed>) = 1 [pid 6209] <... futex resumed>) = 0 [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6213] close(4 [pid 6211] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5837] newfstatat(AT_FDCWD, "./21/cgroup", [pid 6209] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6204] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5837] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6204] <... futex resumed>) = 0 [pid 6203] close(3 [pid 5837] unlink("./21/cgroup" [pid 6204] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6203] <... close resumed>) = 0 [pid 5837] <... unlink resumed>) = 0 [pid 6213] <... close resumed>) = 0 [pid 6209] <... futex resumed>) = 0 [pid 6203] close(4 [pid 5837] umount2("./21/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6213] mkdir("./file2", 0777 [pid 6211] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6209] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6203] <... close resumed>) = 0 [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6213] <... mkdir resumed>) = 0 [pid 6211] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 6203] close(5 [pid 5837] newfstatat(AT_FDCWD, "./21/cgroup.cpu", [pid 6213] mount("/dev/loop1", "./file2", "nilfs2", MS_SYNCHRONOUS, "" [pid 6203] <... close resumed>) = 0 [pid 5837] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [ 123.261917][ T6205] NILFS (loop3): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 123.275917][ T6213] loop1: detected capacity change from 0 to 2048 [pid 6203] close(6 [pid 5837] unlink("./21/cgroup.cpu" [pid 6203] <... close resumed>) = 0 [pid 5837] <... unlink resumed>) = 0 [pid 5837] umount2("./21/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5837] newfstatat(AT_FDCWD, "./21/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6203] close(7 [pid 5837] unlink("./21/cgroup.net" [pid 6203] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6203] close(8 [pid 5837] <... unlink resumed>) = 0 [pid 6203] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6203] close(9 [pid 5837] umount2("./21/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6203] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6203] close(10) = -1 EBADF (Bad file descriptor) [pid 5837] newfstatat(AT_FDCWD, "./21/binderfs", [pid 6203] close(11) = -1 EBADF (Bad file descriptor) [pid 5837] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6203] close(12 [pid 6211] <... write resumed>) = -1 ENOENT (No such file or directory) [pid 6203] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5837] unlink("./21/binderfs" [pid 6203] close(13 [pid 6211] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6203] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5837] <... unlink resumed>) = 0 [pid 6203] close(14) = -1 EBADF (Bad file descriptor) [pid 5837] umount2("./21/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6203] close(15) = -1 EBADF (Bad file descriptor) [pid 6211] <... futex resumed>) = 1 [pid 6203] close(16 [pid 6211] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6203] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6203] close(17 [pid 6209] <... futex resumed>) = 0 [ 123.309298][ T6212] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 123.312998][ T6213] NILFS (loop1): broken superblock, retrying with spare superblock (blocksize = 1024) [ 123.342296][ T6208] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6209] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6203] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6211] <... futex resumed>) = 0 [pid 6209] <... futex resumed>) = 1 [pid 6203] close(18 [pid 6211] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 6203] <... close resumed>) = -1 EBADF (Bad file descriptor) [ 123.354443][ T6208] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 123.367044][ T6208] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 123.378303][ T6208] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 123.390043][ T6208] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6209] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6211] <... openat resumed>) = 6 [pid 6203] close(19 [pid 6211] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6211] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6209] <... futex resumed>) = 0 [pid 6203] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6213] <... mount resumed>) = 0 [pid 6213] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY) = 3 [pid 6213] chdir("./file2") = 0 [pid 6213] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6213] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6210] <... futex resumed>) = 0 [pid 6213] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6210] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6213] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6210] <... futex resumed>) = 0 [pid 6213] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 6210] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6213] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 6213] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6210] <... futex resumed>) = 0 [pid 6213] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6210] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6213] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6210] <... futex resumed>) = 0 [pid 6213] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 6210] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6213] <... openat resumed>) = 4 [pid 6209] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6203] close(20 [pid 6213] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6210] <... futex resumed>) = 0 [pid 6213] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6210] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6213] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6210] <... futex resumed>) = 0 [pid 6213] read(-1, [pid 6210] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6213] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [ 123.403038][ T6208] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 123.405622][ T5838] udevd[5838]: incorrect nilfs2 checksum on /dev/loop1 [ 123.414696][ T6208] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 123.432409][ T6208] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 123.443273][ T6214] NILFS (loop1): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [pid 6213] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6203] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6213] <... futex resumed>) = 1 [pid 6211] <... futex resumed>) = 0 [pid 6210] <... futex resumed>) = 0 [pid 6209] <... futex resumed>) = 1 [pid 6213] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6211] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 6213] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6210] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6213] memfd_create("syzkaller", 0 [pid 6210] <... futex resumed>) = 0 [pid 6213] <... memfd_create resumed>) = 5 [pid 6210] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6213] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 [pid 6209] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6203] close(21 [pid 6213] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288 [pid 6203] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6202] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 6202] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6202] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6200] close(3) = 0 [pid 6200] close(4) = 0 [pid 6213] <... write resumed>) = 524288 [pid 6200] close(5) = 0 [pid 6200] close(6) = 0 [pid 6200] close(7) = -1 EBADF (Bad file descriptor) [pid 6200] close(8 [pid 6203] close(22 [pid 6200] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6200] close(9) = -1 EBADF (Bad file descriptor) [pid 6200] close(10) = -1 EBADF (Bad file descriptor) [pid 6200] close(11) = -1 EBADF (Bad file descriptor) [pid 6200] close(12) = -1 EBADF (Bad file descriptor) [pid 6213] munmap(0x7f0d62800000, 138412032 [pid 6200] close(13) = -1 EBADF (Bad file descriptor) [pid 6200] close(14) = -1 EBADF (Bad file descriptor) [pid 6213] <... munmap resumed>) = 0 [pid 6200] close(15) = -1 EBADF (Bad file descriptor) [pid 6200] close(16) = -1 EBADF (Bad file descriptor) [pid 6200] close(17 [pid 6213] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6200] <... close resumed>) = -1 EBADF (Bad file descriptor) [ 123.455300][ T6208] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 123.467285][ T6208] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 123.478836][ T6207] NILFS (loop2): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 123.489845][ T6208] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6213] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 6200] close(18 [pid 6213] close(5 [pid 6200] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6200] close(19) = -1 EBADF (Bad file descriptor) [pid 6200] close(20 [pid 6213] <... close resumed>) = 0 [pid 6203] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6200] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6200] close(21) = -1 EBADF (Bad file descriptor) [pid 6200] close(22) = -1 EBADF (Bad file descriptor) [pid 6200] close(23) = -1 EBADF (Bad file descriptor) [pid 6200] close(24) = -1 EBADF (Bad file descriptor) [pid 6200] close(25) = -1 EBADF (Bad file descriptor) [pid 6200] close(26 [pid 6213] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6200] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6200] close(27) = -1 EBADF (Bad file descriptor) [pid 6200] close(28 [pid 6213] <... futex resumed>) = 1 [pid 6210] <... futex resumed>) = 0 [pid 6200] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6213] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6200] close(29 [pid 6213] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6210] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6200] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6213] fsync(-1 [pid 6210] <... futex resumed>) = 0 [pid 6203] close(23 [pid 6200] exit_group(0 [pid 6213] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 6210] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6202] <... futex resumed>) = ? [pid 6200] <... exit_group resumed>) = ? [pid 6213] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6210] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6202] +++ exited with 0 +++ [pid 6213] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6210] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6213] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6210] <... futex resumed>) = 0 [pid 6213] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6210] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6209] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6213] <... openat resumed>) = 5 [pid 6203] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6213] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6210] <... futex resumed>) = 0 [pid 6213] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6210] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6200] +++ exited with 0 +++ [pid 6213] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6210] <... futex resumed>) = 0 [pid 5836] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=48, si_uid=0, si_status=0, si_utime=0, si_stime=23 /* 0.23 s */} --- [pid 6213] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [pid 6210] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6203] close(24) = -1 EBADF (Bad file descriptor) [ 123.501624][ T6208] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 123.513026][ T6208] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 123.524904][ T6208] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 123.538793][ T6208] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [pid 6210] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6210] futex(0x7f0d6aef46dc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6210] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0d6adde000 [pid 6210] mprotect(0x7f0d6addf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6210] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6210] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6adfe990, parent_tid=0x7f0d6adfe990, exit_signal=0, stack=0x7f0d6adde000, stack_size=0x20300, tls=0x7f0d6adfe6c0}./strace-static-x86_64: Process 6215 attached [pid 6215] rseq(0x7f0d6adfefe0, 0x20, 0, 0x53053053 [pid 6210] <... clone3 resumed> => {parent_tid=[57]}, 88) = 57 [pid 6215] <... rseq resumed>) = 0 [pid 6210] rt_sigprocmask(SIG_SETMASK, [], [pid 6215] set_robust_list(0x7f0d6adfe9a0, 24 [pid 6210] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6215] <... set_robust_list resumed>) = 0 [pid 6210] futex(0x7f0d6aef46d8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6215] rt_sigprocmask(SIG_SETMASK, [], [pid 6210] <... futex resumed>) = 0 [pid 6215] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6210] futex(0x7f0d6aef46dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6215] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000 [pid 6203] close(25) = -1 EBADF (Bad file descriptor) [pid 6203] close(26) = -1 EBADF (Bad file descriptor) [pid 6215] <... openat resumed>) = 6 [pid 6203] close(27) = -1 EBADF (Bad file descriptor) [pid 6203] close(28 [pid 6215] futex(0x7f0d6aef46dc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6203] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6215] <... futex resumed>) = 1 [pid 6210] <... futex resumed>) = 0 [pid 6203] close(29 [pid 6215] futex(0x7f0d6aef46d8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6210] futex(0x7f0d6aef46d8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6203] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6215] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6210] <... futex resumed>) = 0 [pid 6203] exit_group(0 [pid 6215] pwritev2(6, [{iov_base="\xdf\x2f\x66\x69\x6c\x65\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=1000000}], 1, 8388609, 0 [pid 6210] futex(0x7f0d6aef46dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6203] <... exit_group resumed>) = ? [pid 6204] <... futex resumed>) = ? [pid 6204] +++ exited with 0 +++ [pid 6203] +++ exited with 0 +++ [pid 5836] umount2("./20", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5835] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=46, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 5835] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5835] umount2("./20", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5835] openat(AT_FDCWD, "./20", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5835] newfstatat(3, "", [pid 5837] <... umount2 resumed>) = 0 [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5835] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 5837] umount2("./21/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5836] openat(AT_FDCWD, "./20", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5835] getdents64(3, [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5836] <... openat resumed>) = 3 [pid 5835] <... getdents64 resumed>0x55555fa3d730 /* 7 entries */, 32768) = 208 [ 123.552015][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 123.563041][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 123.573781][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 123.584978][ T5837] NILFS (loop4): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 123.596220][ T5837] NILFS (loop4): disposed unprocessed dirty file(s) when stopping log writer [pid 5835] umount2("./20/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5835] newfstatat(AT_FDCWD, "./20/cgroup", [pid 5837] newfstatat(AT_FDCWD, "./21/file2", [pid 5836] newfstatat(3, "", [pid 5835] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5837] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5837] umount2("./21/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5835] unlink("./20/cgroup" [pid 5837] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5835] <... unlink resumed>) = 0 [pid 5837] openat(AT_FDCWD, "./21/file2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5835] umount2("./20/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5837] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0 [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5837] getdents64(4, [pid 5835] newfstatat(AT_FDCWD, "./20/cgroup.cpu", [pid 5837] <... getdents64 resumed>0x55555fa45770 /* 2 entries */, 32768) = 48 [pid 5837] getdents64(4, [pid 5835] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5837] <... getdents64 resumed>0x55555fa45770 /* 0 entries */, 32768) = 0 [pid 5837] close(4 [pid 5835] unlink("./20/cgroup.cpu" [pid 5837] <... close resumed>) = 0 [pid 5835] <... unlink resumed>) = 0 [pid 5837] rmdir("./21/file2" [pid 5835] umount2("./20/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5837] <... rmdir resumed>) = 0 [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5837] getdents64(3, [pid 5835] newfstatat(AT_FDCWD, "./20/cgroup.net", [pid 5837] <... getdents64 resumed>0x55555fa3d730 /* 0 entries */, 32768) = 0 [pid 5835] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5837] close(3 [pid 5835] unlink("./20/cgroup.net" [pid 5837] <... close resumed>) = 0 [pid 5835] <... unlink resumed>) = 0 [pid 5837] rmdir("./21" [pid 5835] umount2("./20/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5837] <... rmdir resumed>) = 0 [pid 5835] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5837] mkdir("./22", 0777 [pid 5835] newfstatat(AT_FDCWD, "./20/binderfs", [pid 5837] <... mkdir resumed>) = 0 [pid 5835] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5837] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5835] unlink("./20/binderfs" [pid 5837] <... openat resumed>) = 3 [pid 5835] <... unlink resumed>) = 0 [pid 5837] ioctl(3, LOOP_CLR_FD [pid 5835] umount2("./20/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5837] <... ioctl resumed>) = 0 [pid 5837] close(3 [pid 6210] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [ 123.641622][ T6214] ------------[ cut here ]------------ [ 123.647787][ T6214] WARNING: CPU: 0 PID: 6214 at fs/nilfs2/btree.c:2301 nilfs_btree_assign+0xabb/0xd20 [ 123.658416][ T6214] Modules linked in: [ 123.663245][ T6214] CPU: 0 UID: 0 PID: 6214 Comm: segctord Not tainted 6.13.0-rc6-syzkaller-00059-g643e2e259c2b #0 [ 123.674579][ T6214] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [pid 5837] <... close resumed>) = 0 [pid 5837] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6216 attached [pid 6216] set_robust_list(0x55555fa3c6a0, 24 [pid 5837] <... clone resumed>, child_tidptr=0x55555fa3c690) = 51 [pid 6216] <... set_robust_list resumed>) = 0 [pid 6216] chdir("./22") = 0 [pid 6216] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6216] setpgid(0, 0) = 0 [pid 6216] symlink("/syzcgroup/unified/syz4", "./cgroup") = 0 [pid 6216] symlink("/syzcgroup/cpu/syz4", "./cgroup.cpu") = 0 [pid 6216] symlink("/syzcgroup/net/syz4", "./cgroup.net") = 0 [ 123.685369][ T6214] RIP: 0010:nilfs_btree_assign+0xabb/0xd20 [ 123.692640][ T6214] Code: 00 00 44 89 f0 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc e8 e2 52 24 fe 4c 8b 7c 24 38 eb a2 e8 d6 52 24 fe 90 <0f> 0b 90 41 be fe ff ff ff eb 91 44 89 f1 80 e1 07 80 c1 03 38 c1 [ 123.713047][ T6214] RSP: 0018:ffffc90004bcf600 EFLAGS: 00010293 [ 123.720152][ T6214] RAX: ffffffff837b20fa RBX: ffff8880758fa658 RCX: ffff888027200000 [ 123.729280][ T6214] RDX: 0000000000000000 RSI: 00000000fffffffe RDI: 00000000fffffffe [pid 6216] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6216] write(3, "1000", 4) = 4 executing program [pid 6216] close(3) = 0 [pid 6216] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6216] write(1, "executing program\n", 18) = 18 [pid 6216] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6216] rt_sigaction(SIGRT_1, {sa_handler=0x7f0d6ae8ffe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0d6ae81190}, NULL, 8) = 0 [pid 6216] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 6216] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0d6adff000 [pid 6216] mprotect(0x7f0d6ae00000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6216] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 6216] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0d6ae1f990, parent_tid=0x7f0d6ae1f990, exit_signal=0, stack=0x7f0d6adff000, stack_size=0x20300, tls=0x7f0d6ae1f6c0}./strace-static-x86_64: Process 6217 attached [pid 6217] rseq(0x7f0d6ae1ffe0, 0x20, 0, 0x53053053 [pid 6216] <... clone3 resumed> => {parent_tid=[52]}, 88) = 52 [pid 6217] <... rseq resumed>) = 0 [pid 6216] rt_sigprocmask(SIG_SETMASK, [], [pid 6217] set_robust_list(0x7f0d6ae1f9a0, 24 [pid 6216] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6217] <... set_robust_list resumed>) = 0 [pid 6216] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6217] rt_sigprocmask(SIG_SETMASK, [], [pid 6216] <... futex resumed>) = 0 [pid 6217] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 6216] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6217] memfd_create("syzkaller", 0) = 3 [pid 6217] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 [ 123.737628][ T6214] RBP: ffffc90004bcf730 R08: ffffffff837b1a3b R09: 0000000000000000 [ 123.746278][ T6214] R10: ffffc90004bcf560 R11: fffff52000979eaf R12: dffffc0000000000 [ 123.755222][ T6214] R13: ffff8880330ca580 R14: 00000000fffffffe R15: 1ffff92000979ed0 [ 123.764492][ T6214] FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 [ 123.774622][ T6214] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 123.782560][ T6214] CR2: 0000000020094000 CR3: 0000000030296000 CR4: 00000000003526f0 [pid 6217] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 6211] <... pwritev2 resumed>) = -1 ENOENT (No such file or directory) [pid 5836] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=140, ...}, AT_EMPTY_PATH) = 0 [pid 6211] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6209] close(3 [pid 6211] <... futex resumed>) = 0 [pid 6209] <... close resumed>) = 0 [pid 6211] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6209] close(4) = 0 [pid 6209] close(5) = 0 [pid 6209] close(6) = 0 [pid 6209] close(7) = -1 EBADF (Bad file descriptor) [pid 6209] close(8 [pid 5836] getdents64(3, [pid 6209] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] <... getdents64 resumed>0x55555fa3d730 /* 7 entries */, 32768) = 208 [ 123.791059][ T6212] NILFS (loop0): writing node/leaf block does not appear in b-tree (ino=16) at key=255, level=1 [ 123.792515][ T6214] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 123.813792][ T6214] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 123.822621][ T6214] Call Trace: [ 123.826863][ T6214] [ 123.830975][ T6214] ? __warn+0x165/0x4d0 [ 123.835380][ T6214] ? nilfs_btree_assign+0xabb/0xd20 [pid 6209] close(9 [pid 5836] umount2("./20/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6209] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 6209] close(10 [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6209] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] newfstatat(AT_FDCWD, "./20/cgroup", [pid 6209] close(11) = -1 EBADF (Bad file descriptor) [pid 5836] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6209] close(12) = -1 EBADF (Bad file descriptor) [pid 5836] unlink("./20/cgroup" [pid 6209] close(13 [pid 5836] <... unlink resumed>) = 0 [pid 6209] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] umount2("./20/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6209] close(14 [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6209] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] newfstatat(AT_FDCWD, "./20/cgroup.cpu", [pid 6209] close(15 [pid 5836] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6209] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] unlink("./20/cgroup.cpu" [pid 6209] close(16 [pid 5836] <... unlink resumed>) = 0 [pid 6209] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] umount2("./20/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6209] close(17 [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6209] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] newfstatat(AT_FDCWD, "./20/cgroup.net", [pid 6209] close(18 [pid 5836] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6209] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] unlink("./20/cgroup.net" [pid 6209] close(19 [pid 5836] <... unlink resumed>) = 0 [pid 6209] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] umount2("./20/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6209] close(20 [pid 5836] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6209] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] newfstatat(AT_FDCWD, "./20/binderfs", [pid 6209] close(21 [pid 5836] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 6209] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] unlink("./20/binderfs" [pid 6209] close(22 [pid 5836] <... unlink resumed>) = 0 [pid 6209] <... close resumed>) = -1 EBADF (Bad file descriptor) [pid 5836] umount2("./20/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6209] close(23) = -1 EBADF (Bad file descriptor) [pid 6209] close(24) = -1 EBADF (Bad file descriptor) [pid 6209] close(25) = -1 EBADF (Bad file descriptor) [pid 6209] close(26) = -1 EBADF (Bad file descriptor) [pid 6209] close(27) = -1 EBADF (Bad file descriptor) [pid 6209] close(28) = -1 EBADF (Bad file descriptor) [pid 6209] close(29) = -1 EBADF (Bad file descriptor) [pid 6209] exit_group(0 [pid 6211] <... futex resumed>) = ? [pid 6209] <... exit_group resumed>) = ? [pid 6211] +++ exited with 0 +++ [pid 6209] +++ exited with 0 +++ [pid 5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=54, si_uid=0, si_status=0, si_utime=0, si_stime=27 /* 0.27 s */} --- [pid 5833] umount2("./21", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] openat(AT_FDCWD, "./21", 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, 0x55555fa3d730 /* 7 entries */, 32768) = 208 [pid 5833] umount2("./21/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./21/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./21/cgroup") = 0 [pid 5833] umount2("./21/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./21/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./21/cgroup.cpu") = 0 [pid 5833] umount2("./21/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./21/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5833] unlink("./21/cgroup.net") = 0 [pid 5833] umount2("./21/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5833] newfstatat(AT_FDCWD, "./21/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [ 123.842759][ T6214] ? report_bug+0x2b3/0x500 [ 123.848238][ T6214] ? nilfs_btree_assign+0xabb/0xd20 [ 123.854901][ T6214] ? handle_bug+0x60/0x90 [ 123.859676][ T6214] ? exc_invalid_op+0x1a/0x50 [ 123.864949][ T6214] ? asm_exc_invalid_op+0x1a/0x20 [ 123.870253][ T6214] ? nilfs_btree_assign+0x3fb/0xd20 [ 123.877698][ T6214] ? nilfs_btree_assign+0xaba/0xd20 [ 123.883723][ T6214] ? nilfs_btree_assign+0xabb/0xd20 [pid 6217] <... write resumed>) = 1048576 [pid 5833] unlink("./21/binderfs") = 0 [pid 6217] munmap(0x7f0d62800000, 138412032 [pid 5833] umount2("./21/file2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 6217] <... munmap resumed>) = 0 [pid 6217] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [ 123.889569][ T6214] ? __pfx_nilfs_btree_assign+0x10/0x10 [ 123.896413][ T6214] ? down_write+0x18c/0x220 [ 123.902009][ T6214] ? __pfx_down_write+0x10/0x10 [ 123.907790][ T6214] ? nilfs_write_file_data_binfo+0x11d/0x280 [ 123.915286][ T6214] nilfs_bmap_assign+0x8f/0x160 [ 123.920693][ T6214] nilfs_segctor_do_construct+0x35c5/0x6ea0 [ 123.922733][ T6217] loop4: detected capacity change from 0 to 2048 [ 123.927669][ T6214] ? __pfx_nilfs_segctor_do_construct+0x10/0x10 [pid 6217] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6217] close(3) = 0 [pid 6217] close(4) = 0 [pid 6217] mkdir("./file2", 0777) = 0 [ 123.942478][ T6214] ? __pfx_lock_acquire+0x10/0x10 [ 123.948912][ T6214] ? nilfs_segctor_confirm+0x24d/0x2d0 [ 123.956169][ T6214] ? __pfx_lock_release+0x10/0x10 [ 123.961934][ T6214] ? do_raw_spin_lock+0x14f/0x370 [ 123.968846][ T6214] ? _raw_spin_unlock+0x28/0x50 [ 123.974689][ T6214] ? nilfs_segctor_confirm+0x24d/0x2d0 [ 123.980914][ T6214] nilfs_segctor_construct+0x181/0x6b0 [ 123.987746][ T6214] nilfs_segctor_thread+0x69e/0xe80 [ 123.993632][ T6214] ? lockdep_hardirqs_on+0x99/0x150 [ 123.994972][ T5838] udevd[5838]: incorrect nilfs2 checksum on /dev/loop4 [ 123.998999][ T6214] ? __pfx_nilfs_segctor_thread+0x10/0x10 [ 123.999038][ T6214] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 124.007594][ T6217] NILFS (loop4): broken superblock, retrying with spare superblock (blocksize = 1024) [ 124.012005][ T6214] ? __pfx_autoremove_wake_function+0x10/0x10 [ 124.012047][ T6214] ? __kthread_parkme+0x169/0x1d0 [pid 6217] mount("/dev/loop4", "./file2", "nilfs2", MS_SYNCHRONOUS, "") = 0 [pid 6217] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY) = 3 [pid 6217] chdir("./file2") = 0 [pid 6217] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6217] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6216] <... futex resumed>) = 0 [pid 6217] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6216] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6217] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6216] <... futex resumed>) = 0 [pid 6217] ioctl(-1, BTRFS_IOC_RM_DEV, NULL [pid 6216] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6217] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 6217] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6216] <... futex resumed>) = 0 [pid 6217] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6216] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6217] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6216] <... futex resumed>) = 0 [pid 6217] openat(AT_FDCWD, "/dev/cuse", O_RDWR [pid 6216] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6217] <... openat resumed>) = 4 [pid 6217] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6216] <... futex resumed>) = 0 [pid 6217] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6216] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6217] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6216] <... futex resumed>) = 0 [pid 6217] read(-1, [pid 6216] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6217] <... read resumed>0x20003e00, 8224) = -1 EBADF (Bad file descriptor) [pid 6217] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6216] <... futex resumed>) = 0 [pid 6217] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6216] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6217] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6216] <... futex resumed>) = 0 [ 124.012076][ T6214] ? __pfx_nilfs_segctor_thread+0x10/0x10 [ 124.046647][ T6214] kthread+0x2f0/0x390 [ 124.051478][ T6214] ? __pfx_nilfs_segctor_thread+0x10/0x10 [ 124.057533][ T6214] ? __pfx_kthread+0x10/0x10 [ 124.062805][ T6214] ret_from_fork+0x4b/0x80 [ 124.067559][ T6214] ? __pfx_kthread+0x10/0x10 [ 124.073041][ T6218] NILFS (loop4): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 124.073856][ T6214] ret_from_fork_asm+0x1a/0x30 [pid 6217] memfd_create("syzkaller", 0 [pid 6216] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 6217] <... memfd_create resumed>) = 5 [pid 6217] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d62800000 [pid 6217] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 6217] munmap(0x7f0d62800000, 138412032) = 0 [pid 6217] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 6217] close(5) = 0 [ 124.091443][ T6214] [ 124.095393][ T6214] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 124.103408][ T6214] CPU: 0 UID: 0 PID: 6214 Comm: segctord Not tainted 6.13.0-rc6-syzkaller-00059-g643e2e259c2b #0 [ 124.115218][ T6214] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 124.125775][ T6214] Call Trace: [ 124.129194][ T6214] [ 124.132437][ T6214] dump_stack_lvl+0x241/0x360 [ 124.137990][ T6214] ? __pfx_dump_stack_lvl+0x10/0x10 [pid 6217] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6216] <... futex resumed>) = 0 [pid 6217] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6216] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6217] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6217] fsync(-1 [pid 6216] <... futex resumed>) = 0 [pid 6217] <... fsync resumed>) = -1 EBADF (Bad file descriptor) [pid 6216] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6217] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6216] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6217] <... futex resumed>) = 0 [pid 6216] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6217] openat(AT_FDCWD, "./file2", O_WRONLY|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 [pid 6216] <... futex resumed>) = 0 [pid 6216] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6217] <... openat resumed>) = 5 [pid 6217] futex(0x7f0d6aef46cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6216] <... futex resumed>) = 0 [pid 6217] futex(0x7f0d6aef46c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6216] futex(0x7f0d6aef46c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6217] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6216] <... futex resumed>) = 0 [pid 6217] write(5, "\x08\x00\x00\x00\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8"..., 4102 [ 124.144278][ T6214] ? __pfx__printk+0x10/0x10 [ 124.149355][ T6214] ? _printk+0xd5/0x120 [ 124.153671][ T6214] ? __init_begin+0x41000/0x41000 [ 124.159996][ T6214] ? vscnprintf+0x5d/0x90 [ 124.164369][ T6214] panic+0x349/0x880 [ 124.168317][ T6214] ? __warn+0x174/0x4d0 [ 124.172540][ T6214] ? __pfx_panic+0x10/0x10 [ 124.177001][ T6214] ? ret_from_fork_asm+0x1a/0x30 [ 124.181996][ T6214] __warn+0x344/0x4d0 [ 124.186190][ T6214] ? nilfs_btree_assign+0xabb/0xd20 [ 124.191791][ T6214] report_bug+0x2b3/0x500 [ 124.196674][ T6214] ? nilfs_btree_assign+0xabb/0xd20 [ 124.202128][ T6214] handle_bug+0x60/0x90 [ 124.206385][ T6214] exc_invalid_op+0x1a/0x50 [ 124.211180][ T6214] asm_exc_invalid_op+0x1a/0x20 [ 124.216620][ T6214] RIP: 0010:nilfs_btree_assign+0xabb/0xd20 [ 124.223445][ T6214] Code: 00 00 44 89 f0 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc e8 e2 52 24 fe 4c 8b 7c 24 38 eb a2 e8 d6 52 24 fe 90 <0f> 0b 90 41 be fe ff ff ff eb 91 44 89 f1 80 e1 07 80 c1 03 38 c1 [ 124.245215][ T6214] RSP: 0018:ffffc90004bcf600 EFLAGS: 00010293 [ 124.252560][ T6214] RAX: ffffffff837b20fa RBX: ffff8880758fa658 RCX: ffff888027200000 [ 124.263121][ T6214] RDX: 0000000000000000 RSI: 00000000fffffffe RDI: 00000000fffffffe [ 124.271558][ T6214] RBP: ffffc90004bcf730 R08: ffffffff837b1a3b R09: 0000000000000000 [ 124.280688][ T6214] R10: ffffc90004bcf560 R11: fffff52000979eaf R12: dffffc0000000000 [ 124.288796][ T6214] R13: ffff8880330ca580 R14: 00000000fffffffe R15: 1ffff92000979ed0 [ 124.299859][ T6214] ? nilfs_btree_assign+0x3fb/0xd20 [ 124.305921][ T6214] ? nilfs_btree_assign+0xaba/0xd20 [ 124.313270][ T6214] ? __pfx_nilfs_btree_assign+0x10/0x10 [ 124.318916][ T6214] ? down_write+0x18c/0x220 [ 124.324245][ T6214] ? __pfx_down_write+0x10/0x10 [ 124.330210][ T6214] ? nilfs_write_file_data_binfo+0x11d/0x280 [ 124.338052][ T6214] nilfs_bmap_assign+0x8f/0x160 [ 124.343409][ T6214] nilfs_segctor_do_construct+0x35c5/0x6ea0 [ 124.350138][ T6214] ? __pfx_nilfs_segctor_do_construct+0x10/0x10 [ 124.357255][ T6214] ? __pfx_lock_acquire+0x10/0x10 [ 124.362953][ T6214] ? nilfs_segctor_confirm+0x24d/0x2d0 [ 124.368650][ T6214] ? __pfx_lock_release+0x10/0x10 [ 124.373896][ T6214] ? do_raw_spin_lock+0x14f/0x370 [ 124.378985][ T6214] ? _raw_spin_unlock+0x28/0x50 [ 124.384353][ T6214] ? nilfs_segctor_confirm+0x24d/0x2d0 [ 124.389953][ T6214] nilfs_segctor_construct+0x181/0x6b0 [ 124.395452][ T6214] nilfs_segctor_thread+0x69e/0xe80 [ 124.400775][ T6214] ? lockdep_hardirqs_on+0x99/0x150 [ 124.406019][ T6214] ? __pfx_nilfs_segctor_thread+0x10/0x10 [ 124.411896][ T6214] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 124.418272][ T6214] ? __pfx_autoremove_wake_function+0x10/0x10 [ 124.424389][ T6214] ? __kthread_parkme+0x169/0x1d0 [ 124.429464][ T6214] ? __pfx_nilfs_segctor_thread+0x10/0x10 [ 124.435214][ T6214] kthread+0x2f0/0x390 [ 124.439306][ T6214] ? __pfx_nilfs_segctor_thread+0x10/0x10 [ 124.445158][ T6214] ? __pfx_kthread+0x10/0x10 [ 124.449795][ T6214] ret_from_fork+0x4b/0x80 [ 124.454273][ T6214] ? __pfx_kthread+0x10/0x10 [ 124.459072][ T6214] ret_from_fork_asm+0x1a/0x30 [ 124.463875][ T6214] [ 124.467580][ T6214] Kernel Offset: disabled [ 124.472005][ T6214] Rebooting in 86400 seconds.. [pid 6216] futex(0x7f0d6aef46cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}