./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor4011600898 <...> DUID 00:04:e3:38:52:80:67:3f:e9:c9:a2:47:22:a3:59:23:7d:1e forked to background, child pid 4659 [ 43.118513][ T4660] 8021q: adding VLAN 0 to HW filter on device bond0 [ 43.142860][ T4660] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.0.48' (ECDSA) to the list of known hosts. execve("./syz-executor4011600898", ["./syz-executor4011600898"], 0x7ffd725cc920 /* 10 vars */) = 0 brk(NULL) = 0x5555567bc000 brk(0x5555567bcc40) = 0x5555567bcc40 arch_prctl(ARCH_SET_FS, 0x5555567bc300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 set_tid_address(0x5555567bc5d0) = 4994 set_robust_list(0x5555567bc5e0, 24) = 0 rt_sigaction(SIGRTMIN, {sa_handler=0x7f92ef6e76e0, sa_mask=[], sa_flags=SA_RESTORER|SA_SIGINFO, sa_restorer=0x7f92ef6e7db0}, NULL, 8) = 0 rt_sigaction(SIGRT_1, {sa_handler=0x7f92ef6e7780, sa_mask=[], sa_flags=SA_RESTORER|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f92ef6e7db0}, NULL, 8) = 0 rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor4011600898", 4096) = 28 brk(0x5555567ddc40) = 0x5555567ddc40 brk(0x5555567de000) = 0x5555567de000 mprotect(0x7f92ef7a9000, 16384, PROT_READ) = 0 mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000 mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000 mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555567bc5d0) = 4995 ./strace-static-x86_64: Process 4995 attached [pid 4994] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4995] set_robust_list(0x5555567bc5e0, 24) = 0 ./strace-static-x86_64: Process 4996 attached [pid 4996] set_robust_list(0x5555567bc5e0, 24) = 0 [pid 4996] getpid() = 4996 [pid 4996] mkdir("./syzkaller.0bY7pW", 0700 [pid 4994] <... clone resumed>, child_tidptr=0x5555567bc5d0) = 4996 [pid 4995] getpid( [pid 4994] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4995] <... getpid resumed>) = 4995 [pid 4994] <... clone resumed>, child_tidptr=0x5555567bc5d0) = 4997 [pid 4995] mkdir("./syzkaller.NRp6CU", 0700 [pid 4996] <... mkdir resumed>) = 0 [pid 4996] chmod("./syzkaller.0bY7pW", 0777) = 0 [pid 4996] chdir("./syzkaller.0bY7pW") = 0 [pid 4996] mkdir("./0", 0777 [pid 4995] <... mkdir resumed>) = 0 [pid 4994] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4995] chmod("./syzkaller.NRp6CU", 0777./strace-static-x86_64: Process 4997 attached [pid 4996] <... mkdir resumed>) = 0 [pid 4996] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 4996] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4996] close(3./strace-static-x86_64: Process 4998 attached [pid 4994] <... clone resumed>, child_tidptr=0x5555567bc5d0) = 4998 [pid 4997] set_robust_list(0x5555567bc5e0, 24 [pid 4996] <... close resumed>) = 0 [pid 4995] <... chmod resumed>) = 0 [pid 4995] chdir("./syzkaller.NRp6CU") = 0 [pid 4995] mkdir("./0", 0777) = 0 [pid 4994] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4995] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 4994] <... clone resumed>, child_tidptr=0x5555567bc5d0) = 4999 [pid 4994] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4995] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 4999 attached [pid 4998] set_robust_list(0x5555567bc5e0, 24 [pid 4999] set_robust_list(0x5555567bc5e0, 24 [pid 4998] <... set_robust_list resumed>) = 0 [pid 4999] <... set_robust_list resumed>) = 0 [pid 4995] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4998] getpid( [pid 4995] close(3 [pid 4999] getpid( [pid 4998] <... getpid resumed>) = 4998 [pid 4995] <... close resumed>) = 0 [pid 4999] <... getpid resumed>) = 4999 [pid 4998] mkdir("./syzkaller.mOZDn7", 0700 [pid 4995] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4999] mkdir("./syzkaller.0f3mWb", 0700 [pid 4998] <... mkdir resumed>) = 0 [pid 4999] <... mkdir resumed>) = 0 [pid 4998] chmod("./syzkaller.mOZDn7", 0777 [pid 4997] <... set_robust_list resumed>) = 0 [pid 4997] getpid( [pid 4994] <... clone resumed>, child_tidptr=0x5555567bc5d0) = 5000 [pid 4997] <... getpid resumed>) = 4997 [pid 4997] mkdir("./syzkaller.0pSMs5", 0700 [pid 4999] chmod("./syzkaller.0f3mWb", 0777 [pid 4995] <... clone resumed>, child_tidptr=0x5555567bc5d0) = 5001 ./strace-static-x86_64: Process 5001 attached ./strace-static-x86_64: Process 5000 attached [pid 4998] <... chmod resumed>) = 0 [pid 4997] <... mkdir resumed>) = 0 [pid 4996] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5001] set_robust_list(0x5555567bc5e0, 24 [pid 5000] set_robust_list(0x5555567bc5e0, 24 [pid 4999] <... chmod resumed>) = 0 [pid 4998] chdir("./syzkaller.mOZDn7" [pid 4997] chmod("./syzkaller.0pSMs5", 0777 [pid 5001] <... set_robust_list resumed>) = 0 [pid 5000] <... set_robust_list resumed>) = 0 [pid 4999] chdir("./syzkaller.0f3mWb" [pid 4998] <... chdir resumed>) = 0 [pid 5001] chdir("./0" [pid 5000] getpid( [pid 4999] <... chdir resumed>) = 0 [pid 4998] mkdir("./0", 0777 [pid 4997] <... chmod resumed>) = 0 [pid 5001] <... chdir resumed>) = 0 [pid 5000] <... getpid resumed>) = 5000 [pid 4999] mkdir("./0", 0777 [pid 4997] chdir("./syzkaller.0pSMs5" [pid 4996] <... clone resumed>, child_tidptr=0x5555567bc5d0) = 5003 [pid 5001] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5000] mkdir("./syzkaller.2mlfng", 0700 [pid 4998] <... mkdir resumed>) = 0 [pid 4997] <... chdir resumed>) = 0 [pid 5001] <... prctl resumed>) = 0 [pid 4999] <... mkdir resumed>) = 0 [pid 4997] mkdir("./0", 0777 [pid 5001] setpgid(0, 0 [pid 5000] <... mkdir resumed>) = 0 [pid 4999] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4998] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4997] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 5003 attached [pid 5001] <... setpgid resumed>) = 0 [pid 5000] chmod("./syzkaller.2mlfng", 0777 [pid 4999] <... openat resumed>) = 3 [pid 4997] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5003] set_robust_list(0x5555567bc5e0, 24 [pid 4998] <... openat resumed>) = 3 [pid 5003] <... set_robust_list resumed>) = 0 [pid 5001] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5000] <... chmod resumed>) = 0 [pid 4999] ioctl(3, LOOP_CLR_FD [pid 4998] ioctl(3, LOOP_CLR_FD [pid 4997] <... openat resumed>) = 3 [pid 5003] chdir("./0" [pid 4997] ioctl(3, LOOP_CLR_FD [pid 5001] <... openat resumed>) = 3 [pid 5000] chdir("./syzkaller.2mlfng" [pid 4997] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5000] <... chdir resumed>) = 0 [pid 4999] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5003] <... chdir resumed>) = 0 [pid 4998] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4997] close(3 [pid 5001] write(3, "1000", 4 [pid 5003] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5001] <... write resumed>) = 4 [pid 5000] mkdir("./0", 0777 [pid 4999] close(3 [pid 4998] close(3 [pid 5003] <... prctl resumed>) = 0 [pid 5001] close(3 [pid 4997] <... close resumed>) = 0 [pid 5003] setpgid(0, 0 [pid 5001] <... close resumed>) = 0 [pid 5000] <... mkdir resumed>) = 0 [pid 4999] <... close resumed>) = 0 [pid 4998] <... close resumed>) = 0 [pid 4997] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5003] <... setpgid resumed>) = 0 [pid 5001] symlink("/dev/binderfs", "./binderfs" [pid 5000] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4999] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5003] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4997] <... clone resumed>, child_tidptr=0x5555567bc5d0) = 5005 [pid 5003] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5005 attached [pid 5005] set_robust_list(0x5555567bc5e0, 24 [pid 5001] <... symlink resumed>) = 0 [pid 5003] write(3, "1000", 4) = 4 [pid 5001] futex(0x7f92ef7af7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5000] <... openat resumed>) = 3 [pid 4999] <... clone resumed>, child_tidptr=0x5555567bc5d0) = 5007 [pid 4998] <... clone resumed>, child_tidptr=0x5555567bc5d0) = 5006 [pid 5003] close(3 [pid 5001] <... futex resumed>) = 0 [pid 5000] ioctl(3, LOOP_CLR_FD [pid 5003] <... close resumed>) = 0 [pid 5001] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5000] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5003] symlink("/dev/binderfs", "./binderfs" [pid 5001] <... mmap resumed>) = 0x7f92ef6b6000 [pid 5000] close(3 [pid 5003] <... symlink resumed>) = 0 ./strace-static-x86_64: Process 5006 attached [pid 5003] futex(0x7f92ef7af7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5001] mprotect(0x7f92ef6b7000, 131072, PROT_READ|PROT_WRITE [pid 5000] <... close resumed>) = 0 [pid 5003] <... futex resumed>) = 0 [pid 5001] <... mprotect resumed>) = 0 [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5006] set_robust_list(0x5555567bc5e0, 24 [pid 5003] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5001] clone(child_stack=0x7f92ef6d63f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5005] <... set_robust_list resumed>) = 0 [pid 5003] <... mmap resumed>) = 0x7f92ef6b6000 [pid 5006] <... set_robust_list resumed>) = 0 [pid 5003] mprotect(0x7f92ef6b7000, 131072, PROT_READ|PROT_WRITE [pid 5000] <... clone resumed>, child_tidptr=0x5555567bc5d0) = 5008 [pid 5006] chdir("./0" [pid 5005] chdir("./0" [pid 5003] <... mprotect resumed>) = 0 [pid 5001] <... clone resumed>, parent_tid=[5009], tls=0x7f92ef6d6700, child_tidptr=0x7f92ef6d69d0) = 5009 [pid 5006] <... chdir resumed>) = 0 [pid 5005] <... chdir resumed>) = 0 [pid 5003] clone(child_stack=0x7f92ef6d63f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5001] futex(0x7f92ef7af7a8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5008 attached ./strace-static-x86_64: Process 5007 attached [pid 5006] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5005] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5001] <... futex resumed>) = 0 ./strace-static-x86_64: Process 5010 attached ./strace-static-x86_64: Process 5009 attached [pid 5008] set_robust_list(0x5555567bc5e0, 24 [pid 5007] set_robust_list(0x5555567bc5e0, 24 [pid 5006] <... prctl resumed>) = 0 [pid 5005] <... prctl resumed>) = 0 [pid 5003] <... clone resumed>, parent_tid=[5010], tls=0x7f92ef6d6700, child_tidptr=0x7f92ef6d69d0) = 5010 [pid 5001] futex(0x7f92ef7af7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5010] set_robust_list(0x7f92ef6d69e0, 24 [pid 5009] set_robust_list(0x7f92ef6d69e0, 24 [pid 5008] <... set_robust_list resumed>) = 0 [pid 5007] <... set_robust_list resumed>) = 0 [pid 5006] setpgid(0, 0 [pid 5005] setpgid(0, 0 [pid 5003] futex(0x7f92ef7af7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5010] <... set_robust_list resumed>) = 0 [pid 5009] <... set_robust_list resumed>) = 0 [pid 5008] chdir("./0" [pid 5007] chdir("./0" [pid 5006] <... setpgid resumed>) = 0 [pid 5005] <... setpgid resumed>) = 0 [pid 5003] <... futex resumed>) = 0 [pid 5010] memfd_create("syzkaller", 0 [pid 5009] memfd_create("syzkaller", 0 [pid 5008] <... chdir resumed>) = 0 [pid 5007] <... chdir resumed>) = 0 [pid 5006] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5005] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5003] futex(0x7f92ef7af7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5009] <... memfd_create resumed>) = 3 [pid 5007] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5005] <... openat resumed>) = 3 [pid 5009] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5007] <... prctl resumed>) = 0 [pid 5005] write(3, "1000", 4 [pid 5009] <... mmap resumed>) = 0x7f92e72b6000 [pid 5007] setpgid(0, 0 [pid 5005] <... write resumed>) = 4 [pid 5009] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144 [pid 5008] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5007] <... setpgid resumed>) = 0 [pid 5006] <... openat resumed>) = 3 [pid 5005] close(3 [pid 5010] <... memfd_create resumed>) = 3 [pid 5009] <... write resumed>) = 262144 [pid 5008] <... prctl resumed>) = 0 [pid 5007] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5006] write(3, "1000", 4 [pid 5005] <... close resumed>) = 0 [pid 5010] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5009] munmap(0x7f92e72b6000, 262144 [pid 5008] setpgid(0, 0 [pid 5007] <... openat resumed>) = 3 [pid 5006] <... write resumed>) = 4 [pid 5005] symlink("/dev/binderfs", "./binderfs" [pid 5010] <... mmap resumed>) = 0x7f92e72b6000 [pid 5009] <... munmap resumed>) = 0 [pid 5008] <... setpgid resumed>) = 0 [pid 5007] write(3, "1000", 4 [pid 5006] close(3 [pid 5005] <... symlink resumed>) = 0 [pid 5009] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5007] <... write resumed>) = 4 [pid 5005] futex(0x7f92ef7af7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5009] <... openat resumed>) = 4 [pid 5008] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5007] close(3 [pid 5010] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144 [pid 5006] <... close resumed>) = 0 [pid 5005] <... futex resumed>) = 0 [pid 5009] ioctl(4, LOOP_SET_FD, 3 [pid 5008] <... openat resumed>) = 3 [pid 5007] <... close resumed>) = 0 [pid 5006] symlink("/dev/binderfs", "./binderfs" [pid 5005] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5010] <... write resumed>) = 262144 [pid 5009] <... ioctl resumed>) = 0 [pid 5008] write(3, "1000", 4 [pid 5007] symlink("/dev/binderfs", "./binderfs" [pid 5006] <... symlink resumed>) = 0 [pid 5005] <... mmap resumed>) = 0x7f92ef6b6000 [pid 5010] munmap(0x7f92e72b6000, 262144 [pid 5008] <... write resumed>) = 4 [pid 5007] <... symlink resumed>) = 0 [pid 5006] futex(0x7f92ef7af7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5005] mprotect(0x7f92ef6b7000, 131072, PROT_READ|PROT_WRITE [pid 5010] <... munmap resumed>) = 0 [pid 5008] close(3 [pid 5007] futex(0x7f92ef7af7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5006] <... futex resumed>) = 0 [pid 5005] <... mprotect resumed>) = 0 [pid 5010] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5008] <... close resumed>) = 0 [pid 5007] <... futex resumed>) = 0 [pid 5006] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5005] clone(child_stack=0x7f92ef6d63f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 5011 attached [pid 5010] <... openat resumed>) = 4 [pid 5008] symlink("/dev/binderfs", "./binderfs" [pid 5007] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5006] <... mmap resumed>) = 0x7f92ef6b6000 [pid 5011] set_robust_list(0x7f92ef6d69e0, 24 [pid 5010] ioctl(4, LOOP_SET_FD, 3 [pid 5008] <... symlink resumed>) = 0 [pid 5007] <... mmap resumed>) = 0x7f92ef6b6000 [pid 5006] mprotect(0x7f92ef6b7000, 131072, PROT_READ|PROT_WRITE [pid 5005] <... clone resumed>, parent_tid=[5011], tls=0x7f92ef6d6700, child_tidptr=0x7f92ef6d69d0) = 5011 syzkaller login: [ 72.763202][ T5010] memfd_create() without MFD_EXEC nor MFD_NOEXEC_SEAL, pid=5010 'syz-executor401' [ 72.791599][ T5009] loop0: detected capacity change from 0 to 512 [pid 5011] <... set_robust_list resumed>) = 0 [pid 5007] mprotect(0x7f92ef6b7000, 131072, PROT_READ|PROT_WRITE [pid 5005] futex(0x7f92ef7af7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5009] close(3 [pid 5007] <... mprotect resumed>) = 0 [pid 5005] <... futex resumed>) = 0 [pid 5009] <... close resumed>) = 0 [pid 5007] clone(child_stack=0x7f92ef6d63f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5005] futex(0x7f92ef7af7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5009] mkdir("./file0", 0777 [pid 5011] memfd_create("syzkaller", 0 [pid 5009] <... mkdir resumed>) = 0 [pid 5008] futex(0x7f92ef7af7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5007] <... clone resumed>, parent_tid=[5012], tls=0x7f92ef6d6700, child_tidptr=0x7f92ef6d69d0) = 5012 [pid 5006] <... mprotect resumed>) = 0 [pid 5011] <... memfd_create resumed>) = 3 [pid 5010] <... ioctl resumed>) = 0 [pid 5009] mount("/dev/loop0", "./file0", "ext4", MS_NODEV, "oldalloc,noblock_validity,stripe=0x0000000000000006,barrier=0x000000007fff0038,discard,sysvgroups,re"... [pid 5008] <... futex resumed>) = 0 [pid 5007] futex(0x7f92ef7af7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5006] clone(child_stack=0x7f92ef6d63f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5011] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5010] close(3 [pid 5008] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5007] <... futex resumed>) = 0 ./strace-static-x86_64: Process 5012 attached [pid 5011] <... mmap resumed>) = 0x7f92e72b6000 [pid 5007] futex(0x7f92ef7af7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5008] <... mmap resumed>) = 0x7f92ef6b6000 [pid 5012] set_robust_list(0x7f92ef6d69e0, 24) = 0 [pid 5011] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144 [pid 5008] mprotect(0x7f92ef6b7000, 131072, PROT_READ|PROT_WRITE [pid 5006] <... clone resumed>, parent_tid=[5013], tls=0x7f92ef6d6700, child_tidptr=0x7f92ef6d69d0) = 5013 [pid 5012] memfd_create("syzkaller", 0 [pid 5008] <... mprotect resumed>) = 0 [pid 5006] futex(0x7f92ef7af7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5012] <... memfd_create resumed>) = 3 [pid 5008] clone(child_stack=0x7f92ef6d63f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5006] <... futex resumed>) = 0 [pid 5012] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5006] futex(0x7f92ef7af7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5012] <... mmap resumed>) = 0x7f92e72b6000 [pid 5011] <... write resumed>) = 262144 [pid 5010] <... close resumed>) = 0 [pid 5008] <... clone resumed>, parent_tid=[5014], tls=0x7f92ef6d6700, child_tidptr=0x7f92ef6d69d0) = 5014 [pid 5012] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144 [pid 5011] munmap(0x7f92e72b6000, 262144 [pid 5010] mkdir("./file0", 0777 [pid 5008] futex(0x7f92ef7af7a8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5014 attached ./strace-static-x86_64: Process 5013 attached [pid 5012] <... write resumed>) = 262144 [pid 5011] <... munmap resumed>) = 0 [pid 5010] <... mkdir resumed>) = 0 [pid 5008] <... futex resumed>) = 0 [pid 5014] set_robust_list(0x7f92ef6d69e0, 24 [pid 5013] set_robust_list(0x7f92ef6d69e0, 24 [pid 5011] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5010] mount("/dev/loop1", "./file0", "ext4", MS_NODEV, "oldalloc,noblock_validity,stripe=0x0000000000000006,barrier=0x000000007fff0038,discard,sysvgroups,re"... [pid 5008] futex(0x7f92ef7af7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [ 72.819764][ T5010] loop1: detected capacity change from 0 to 512 [ 72.831547][ T5009] EXT4-fs: Ignoring removed oldalloc option [pid 5014] <... set_robust_list resumed>) = 0 [pid 5013] <... set_robust_list resumed>) = 0 [pid 5012] munmap(0x7f92e72b6000, 262144 [pid 5011] <... openat resumed>) = 4 [pid 5014] memfd_create("syzkaller", 0 [pid 5013] memfd_create("syzkaller", 0 [pid 5012] <... munmap resumed>) = 0 [pid 5011] ioctl(4, LOOP_SET_FD, 3 [pid 5014] <... memfd_create resumed>) = 3 [pid 5013] <... memfd_create resumed>) = 3 [pid 5012] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5014] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5012] <... openat resumed>) = 4 [pid 5014] <... mmap resumed>) = 0x7f92e72b6000 [pid 5012] ioctl(4, LOOP_SET_FD, 3 [pid 5014] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144 [pid 5013] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5011] <... ioctl resumed>) = 0 [pid 5013] <... mmap resumed>) = 0x7f92e72b6000 [pid 5011] close(3 [pid 5013] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144 [pid 5011] <... close resumed>) = 0 [pid 5013] <... write resumed>) = 262144 [pid 5013] munmap(0x7f92e72b6000, 262144 [pid 5011] mkdir("./file0", 0777 [pid 5013] <... munmap resumed>) = 0 [pid 5011] <... mkdir resumed>) = 0 [pid 5013] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5011] mount("/dev/loop2", "./file0", "ext4", MS_NODEV, "oldalloc,noblock_validity,stripe=0x0000000000000006,barrier=0x000000007fff0038,discard,sysvgroups,re"... [pid 5014] <... write resumed>) = 262144 [pid 5013] <... openat resumed>) = 4 [ 72.863436][ T5010] EXT4-fs: Ignoring removed oldalloc option [ 72.875760][ T5011] loop2: detected capacity change from 0 to 512 [ 72.884317][ T5012] loop4: detected capacity change from 0 to 512 [ 72.895606][ T5011] EXT4-fs: Ignoring removed oldalloc option [ 72.897438][ T5009] [EXT4 FS bs=4096, gc=1, bpg=32768, ipg=32, mo=c842c018, mo2=0002] [pid 5013] ioctl(4, LOOP_SET_FD, 3 [pid 5014] munmap(0x7f92e72b6000, 262144 [pid 5012] <... ioctl resumed>) = 0 [pid 5012] close(3) = 0 [pid 5012] mkdir("./file0", 0777 [pid 5014] <... munmap resumed>) = 0 [pid 5014] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 5014] ioctl(4, LOOP_SET_FD, 3 [pid 5012] <... mkdir resumed>) = 0 [pid 5012] mount("/dev/loop4", "./file0", "ext4", MS_NODEV, "oldalloc,noblock_validity,stripe=0x0000000000000006,barrier=0x000000007fff0038,discard,sysvgroups,re"... [pid 5014] <... ioctl resumed>) = 0 [pid 5013] <... ioctl resumed>) = 0 [pid 5014] close(3) = 0 [pid 5013] close(3 [pid 5014] mkdir("./file0", 0777) = 0 [pid 5014] mount("/dev/loop5", "./file0", "ext4", MS_NODEV, "oldalloc,noblock_validity,stripe=0x0000000000000006,barrier=0x000000007fff0038,discard,sysvgroups,re"... [pid 5013] <... close resumed>) = 0 [ 72.903480][ T5013] loop3: detected capacity change from 0 to 512 [ 72.921527][ T5014] loop5: detected capacity change from 0 to 512 [ 72.922964][ T5012] EXT4-fs: Ignoring removed oldalloc option [ 72.935795][ T5010] [EXT4 FS bs=4096, gc=1, bpg=32768, ipg=32, mo=c842c018, mo2=0002] [ 72.936540][ T5009] EXT4-fs error (device loop0): ext4_mb_mark_diskspace_used:3782: comm syz-executor401: Allocating blocks 41-42 which overlap fs metadata [pid 5013] mkdir("./file0", 0777) = 0 [ 72.964483][ T5014] EXT4-fs: Ignoring removed oldalloc option [ 72.964638][ T5010] EXT4-fs error (device loop1): ext4_mb_mark_diskspace_used:3782: comm syz-executor401: Allocating blocks 41-42 which overlap fs metadata [ 72.971438][ T5011] [EXT4 FS bs=4096, gc=1, bpg=32768, ipg=32, mo=c842c018, mo2=0002] [ 72.990441][ T5013] EXT4-fs: Ignoring removed oldalloc option [ 73.000361][ T5009] Quota error (device loop0): write_blk: dquota write failed [ 73.003144][ T5012] [EXT4 FS bs=4096, gc=1, bpg=32768, ipg=32, mo=c842c018, mo2=0002] [ 73.008104][ T5009] Quota error (device loop0): qtree_write_dquot: Error -117 occurred while creating quota [ 73.031840][ T5014] [EXT4 FS bs=4096, gc=1, bpg=32768, ipg=32, mo=c842c018, mo2=0002] [ 73.033580][ T5009] EXT4-fs (loop0): 1 truncate cleaned up [ 73.045728][ T5009] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 without journal. Quota mode: writeback. [pid 5013] mount("/dev/loop3", "./file0", "ext4", MS_NODEV, "oldalloc,noblock_validity,stripe=0x0000000000000006,barrier=0x000000007fff0038,discard,sysvgroups,re"... [pid 5009] <... mount resumed>) = 0 [pid 5009] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5009] chdir("./file0") = 0 [ 73.045740][ T5010] Quota error (device loop1): write_blk: dquota write failed [ 73.045801][ T5010] Quota error (device loop1): qtree_write_dquot: Error -117 occurred while creating quota [ 73.060510][ T5009] ext4 filesystem being mounted at /root/syzkaller.NRp6CU/0/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 73.092559][ T5010] EXT4-fs (loop1): 1 truncate cleaned up [ 73.093778][ T5011] EXT4-fs error (device loop2): ext4_mb_mark_diskspace_used:3782: comm syz-executor401: Allocating blocks 41-42 which overlap fs metadata [pid 5009] ioctl(4, LOOP_CLR_FD) = 0 [ 73.098356][ T5010] EXT4-fs (loop1): mounted filesystem 00000000-0000-0000-0000-000000000000 without journal. Quota mode: writeback. [ 73.126971][ T5014] EXT4-fs error (device loop5): ext4_mb_mark_diskspace_used:3782: comm syz-executor401: Allocating blocks 41-42 which overlap fs metadata [ 73.127042][ T5013] [EXT4 FS bs=4096, gc=1, bpg=32768, ipg=32, mo=c842c018, mo2=0002] [ 73.141705][ T5012] EXT4-fs error (device loop4): ext4_mb_mark_diskspace_used:3782: comm syz-executor401: Allocating blocks 41-42 which overlap fs metadata [pid 5009] close(4) = 0 [pid 5009] futex(0x7f92ef7af7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5001] <... futex resumed>) = 0 [pid 5009] fspick(AT_FDCWD, ".", 0 [pid 5001] futex(0x7f92ef7af7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5009] <... fspick resumed>) = 4 [pid 5001] <... futex resumed>) = 0 [pid 5009] futex(0x7f92ef7af7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5001] futex(0x7f92ef7af7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5009] <... futex resumed>) = 0 [pid 5001] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5009] read(-1, [pid 5001] futex(0x7f92ef7af7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5009] <... read resumed>NULL, 0) = -1 EBADF (Bad file descriptor) [pid 5001] <... futex resumed>) = 0 [pid 5009] futex(0x7f92ef7af7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5001] futex(0x7f92ef7af7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5009] <... futex resumed>) = 0 [pid 5001] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5009] futex(0x7f92ef7af7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5001] futex(0x7f92ef7af7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5009] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5001] <... futex resumed>) = 0 [pid 5009] fsconfig(4, FSCONFIG_SET_FLAG, "ro", NULL, 0 [pid 5001] futex(0x7f92ef7af7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5009] <... fsconfig resumed>) = 0 [pid 5009] futex(0x7f92ef7af7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5001] <... futex resumed>) = 0 [pid 5009] futex(0x7f92ef7af7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5001] futex(0x7f92ef7af7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5009] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5001] <... futex resumed>) = 0 [ 73.179142][ T5010] ext4 filesystem being mounted at /root/syzkaller.0bY7pW/0/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 73.182436][ T5014] Quota error (device loop5): write_blk: dquota write failed [ 73.193904][ T5013] EXT4-fs error (device loop3): ext4_mb_mark_diskspace_used:3782: comm syz-executor401: Allocating blocks 41-42 which overlap fs metadata [ 73.215237][ T5013] Quota error (device loop3): write_blk: dquota write failed [pid 5010] <... mount resumed>) = 0 [pid 5009] fsconfig(4, FSCONFIG_CMD_RECONFIGURE, NULL, NULL, 0 [pid 5001] futex(0x7f92ef7af7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5010] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [ 73.220365][ T5011] Quota error (device loop2): write_blk: dquota write failed [ 73.222834][ T5013] Quota error (device loop3): qtree_write_dquot: Error -117 occurred while creating quota [ 73.241169][ T5014] Quota error (device loop5): qtree_write_dquot: Error -117 occurred while creating quota [ 73.243562][ T5012] Quota error (device loop4): write_blk: dquota write failed [ 73.261445][ T5013] EXT4-fs (loop3): 1 truncate cleaned up [ 73.271936][ T5011] EXT4-fs (loop2): 1 truncate cleaned up [pid 5010] chdir("./file0") = 0 [pid 5010] ioctl(4, LOOP_CLR_FD) = 0 [pid 5010] close(4) = 0 [pid 5010] futex(0x7f92ef7af7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5003] <... futex resumed>) = 0 [pid 5010] futex(0x7f92ef7af7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5003] futex(0x7f92ef7af7a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5010] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5010] fspick(AT_FDCWD, ".", 0 [pid 5003] futex(0x7f92ef7af7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5010] <... fspick resumed>) = 4 [pid 5010] futex(0x7f92ef7af7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5003] <... futex resumed>) = 0 [pid 5001] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [ 73.272032][ T5014] EXT4-fs (loop5): 1 truncate cleaned up [ 73.284026][ T5011] EXT4-fs (loop2): mounted filesystem 00000000-0000-0000-0000-000000000000 without journal. Quota mode: writeback. [ 73.285154][ T5014] EXT4-fs (loop5): mounted filesystem 00000000-0000-0000-0000-000000000000 without journal. Quota mode: writeback. [ 73.300900][ T5013] EXT4-fs (loop3): mounted filesystem 00000000-0000-0000-0000-000000000000 without journal. Quota mode: writeback. [pid 5010] futex(0x7f92ef7af7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5003] futex(0x7f92ef7af7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5001] futex(0x7f92ef7af7bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5014] <... mount resumed>) = 0 [pid 5011] <... mount resumed>) = 0 [pid 5010] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5003] <... futex resumed>) = 0 [pid 5001] <... futex resumed>) = 0 [pid 5011] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5010] read(-1, [pid 5003] futex(0x7f92ef7af7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5001] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5011] <... openat resumed>) = 3 [pid 5010] <... read resumed>NULL, 0) = -1 EBADF (Bad file descriptor) [pid 5001] <... mmap resumed>) = 0x7f92e72d5000 [pid 5011] chdir("./file0" [pid 5010] futex(0x7f92ef7af7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5001] mprotect(0x7f92e72d6000, 131072, PROT_READ|PROT_WRITE [pid 5011] <... chdir resumed>) = 0 [pid 5010] <... futex resumed>) = 1 [pid 5003] <... futex resumed>) = 0 [pid 5001] <... mprotect resumed>) = 0 [pid 5011] ioctl(4, LOOP_CLR_FD [pid 5010] futex(0x7f92ef7af7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5003] futex(0x7f92ef7af7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5001] clone(child_stack=0x7f92e72f53f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5011] <... ioctl resumed>) = 0 [pid 5010] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5003] <... futex resumed>) = 0 [pid 5011] close(4 [pid 5010] fsconfig(4, FSCONFIG_SET_FLAG, "ro", NULL, 0 [pid 5003] futex(0x7f92ef7af7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5001] <... clone resumed>, parent_tid=[5028], tls=0x7f92e72f5700, child_tidptr=0x7f92e72f59d0) = 5028 [pid 5011] <... close resumed>) = 0 [pid 5010] <... fsconfig resumed>) = 0 [pid 5001] futex(0x7f92ef7af7b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5011] futex(0x7f92ef7af7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5010] futex(0x7f92ef7af7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5001] <... futex resumed>) = 0 [pid 5014] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5011] <... futex resumed>) = 1 [pid 5010] <... futex resumed>) = 1 [pid 5003] <... futex resumed>) = 0 [pid 5001] futex(0x7f92ef7af7bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5014] <... openat resumed>) = 3 [pid 5011] futex(0x7f92ef7af7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5010] futex(0x7f92ef7af7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5003] futex(0x7f92ef7af7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5014] chdir("./file0" [pid 5010] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [ 73.310644][ T5014] ext4 filesystem being mounted at /root/syzkaller.2mlfng/0/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 73.329658][ T5011] ext4 filesystem being mounted at /root/syzkaller.0pSMs5/0/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 73.334914][ T5012] EXT4-fs (loop4): 1 truncate cleaned up [ 73.354439][ T5013] ext4 filesystem being mounted at /root/syzkaller.mOZDn7/0/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 73.367363][ T5009] EXT4-fs (loop0): re-mounted 00000000-0000-0000-0000-000000000000. Quota mode: writeback. [pid 5005] <... futex resumed>) = 0 [pid 5003] <... futex resumed>) = 0 ./strace-static-x86_64: Process 5028 attached [pid 5014] <... chdir resumed>) = 0 [pid 5010] fsconfig(4, FSCONFIG_CMD_RECONFIGURE, NULL, NULL, 0 [pid 5005] futex(0x7f92ef7af7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] futex(0x7f92ef7af7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5014] ioctl(4, LOOP_CLR_FD) = 0 [pid 5014] close(4 [pid 5028] set_robust_list(0x7f92e72f59e0, 24 [pid 5014] <... close resumed>) = 0 [pid 5011] <... futex resumed>) = 0 [pid 5009] <... fsconfig resumed>) = 0 [pid 5005] <... futex resumed>) = 1 [pid 5028] <... set_robust_list resumed>) = 0 [pid 5014] futex(0x7f92ef7af7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5013] <... mount resumed>) = 0 [pid 5012] <... mount resumed>) = 0 [pid 5011] fspick(AT_FDCWD, ".", 0 [pid 5009] futex(0x7f92ef7af7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5005] futex(0x7f92ef7af7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5028] ioctl(-1, _IOC(_IOC_WRITE, 0x58, 0x29, 0x30), 0 [pid 5014] <... futex resumed>) = 1 [pid 5013] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5012] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5011] <... fspick resumed>) = 4 [pid 5009] <... futex resumed>) = 0 [pid 5008] <... futex resumed>) = 0 [pid 5028] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 5014] futex(0x7f92ef7af7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5013] <... openat resumed>) = 3 [pid 5012] <... openat resumed>) = 3 [pid 5011] futex(0x7f92ef7af7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5009] futex(0x7f92ef7af7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5008] futex(0x7f92ef7af7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5001] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5028] futex(0x7f92ef7af7bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5014] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5013] chdir("./file0" [pid 5012] chdir("./file0" [pid 5011] <... futex resumed>) = 1 [pid 5010] <... fsconfig resumed>) = 0 [pid 5008] <... futex resumed>) = 0 [pid 5005] <... futex resumed>) = 0 [pid 5001] futex(0x7f92ef7af7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5028] <... futex resumed>) = 0 [pid 5014] fspick(AT_FDCWD, ".", 0 [pid 5013] <... chdir resumed>) = 0 [pid 5012] <... chdir resumed>) = 0 [pid 5011] futex(0x7f92ef7af7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5010] futex(0x7f92ef7af7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5009] <... futex resumed>) = 0 [pid 5008] futex(0x7f92ef7af7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5005] futex(0x7f92ef7af7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5001] <... futex resumed>) = 1 [pid 5028] futex(0x7f92ef7af7b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5014] <... fspick resumed>) = 4 [pid 5013] ioctl(4, LOOP_CLR_FD [pid 5012] ioctl(4, LOOP_CLR_FD [pid 5011] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5010] <... futex resumed>) = 0 [pid 5009] fsconfig(4, FSCONFIG_CMD_RECONFIGURE, NULL, NULL, 0 [pid 5005] <... futex resumed>) = 0 [ 73.380591][ T5012] EXT4-fs (loop4): mounted filesystem 00000000-0000-0000-0000-000000000000 without journal. Quota mode: writeback. [ 73.395827][ T5012] ext4 filesystem being mounted at /root/syzkaller.0f3mWb/0/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 73.408717][ T5010] EXT4-fs (loop1): re-mounted 00000000-0000-0000-0000-000000000000. Quota mode: writeback. [pid 5003] futex(0x7f92ef7af7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5001] futex(0x7f92ef7af7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5014] futex(0x7f92ef7af7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5013] <... ioctl resumed>) = 0 [pid 5012] <... ioctl resumed>) = 0 [pid 5011] read(-1, [pid 5010] ioctl(-1, _IOC(_IOC_WRITE, 0x58, 0x29, 0x30), 0 [pid 5005] futex(0x7f92ef7af7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5003] <... futex resumed>) = 0 [pid 5014] <... futex resumed>) = 1 [pid 5011] <... read resumed>NULL, 0) = -1 EBADF (Bad file descriptor) [pid 5008] <... futex resumed>) = 0 [pid 5003] futex(0x7f92ef7af7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5014] futex(0x7f92ef7af7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5011] futex(0x7f92ef7af7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5008] futex(0x7f92ef7af7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5014] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5011] <... futex resumed>) = 1 [pid 5008] <... futex resumed>) = 0 [pid 5005] <... futex resumed>) = 0 [pid 5014] read(-1, [pid 5011] futex(0x7f92ef7af7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5008] futex(0x7f92ef7af7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5005] futex(0x7f92ef7af7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5014] <... read resumed>NULL, 0) = -1 EBADF (Bad file descriptor) [pid 5011] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5005] <... futex resumed>) = 0 [pid 5014] futex(0x7f92ef7af7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5013] close(4 [pid 5012] close(4 [pid 5011] fsconfig(4, FSCONFIG_SET_FLAG, "ro", NULL, 0 [pid 5010] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 5005] futex(0x7f92ef7af7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5014] <... futex resumed>) = 1 [pid 5013] <... close resumed>) = 0 [pid 5012] <... close resumed>) = 0 [pid 5011] <... fsconfig resumed>) = 0 [pid 5008] <... futex resumed>) = 0 [pid 5014] futex(0x7f92ef7af7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5011] futex(0x7f92ef7af7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5008] futex(0x7f92ef7af7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5014] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5011] <... futex resumed>) = 1 [pid 5008] <... futex resumed>) = 0 [pid 5005] <... futex resumed>) = 0 [pid 5014] fsconfig(4, FSCONFIG_SET_FLAG, "ro", NULL, 0 [pid 5011] futex(0x7f92ef7af7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5008] futex(0x7f92ef7af7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5005] futex(0x7f92ef7af7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5014] <... fsconfig resumed>) = 0 [pid 5011] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5005] <... futex resumed>) = 0 [pid 5014] futex(0x7f92ef7af7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5011] fsconfig(4, FSCONFIG_CMD_RECONFIGURE, NULL, NULL, 0 [pid 5005] futex(0x7f92ef7af7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5014] <... futex resumed>) = 1 [pid 5013] futex(0x7f92ef7af7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5012] futex(0x7f92ef7af7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5010] futex(0x7f92ef7af7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5008] <... futex resumed>) = 0 [pid 5014] futex(0x7f92ef7af7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5008] futex(0x7f92ef7af7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5014] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5008] <... futex resumed>) = 0 [pid 5014] fsconfig(4, FSCONFIG_CMD_RECONFIGURE, NULL, NULL, 0 [ 73.447609][ T5009] EXT4-fs (loop0): warning: mounting fs with errors, running e2fsck is recommended [ 73.469018][ T5011] EXT4-fs (loop2): re-mounted 00000000-0000-0000-0000-000000000000. Quota mode: writeback. [ 73.480374][ T5009] [EXT4 FS bs=4096, gc=1, bpg=32768, ipg=32, mo=c842c018, mo2=0002] [pid 5008] futex(0x7f92ef7af7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5013] <... futex resumed>) = 1 [pid 5012] <... futex resumed>) = 1 [pid 5010] <... futex resumed>) = 1 [pid 5007] <... futex resumed>) = 0 [pid 5006] <... futex resumed>) = 0 [pid 5003] <... futex resumed>) = 0 [pid 5001] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5013] futex(0x7f92ef7af7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5012] futex(0x7f92ef7af7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5010] futex(0x7f92ef7af7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5007] futex(0x7f92ef7af7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5006] futex(0x7f92ef7af7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] futex(0x7f92ef7af7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5001] futex(0x7f92ef7af7b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5013] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5012] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5010] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5007] <... futex resumed>) = 0 [pid 5006] <... futex resumed>) = 0 [pid 5003] <... futex resumed>) = 0 [pid 5001] <... futex resumed>) = 1 [pid 5028] <... futex resumed>) = 0 [pid 5028] fsconfig(4, FSCONFIG_CMD_RECONFIGURE, NULL, NULL, 0 [pid 5013] fspick(AT_FDCWD, ".", 0 [pid 5012] fspick(AT_FDCWD, ".", 0 [pid 5010] fsconfig(4, FSCONFIG_CMD_RECONFIGURE, NULL, NULL, 0 [pid 5007] futex(0x7f92ef7af7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5006] futex(0x7f92ef7af7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5003] futex(0x7f92ef7af7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5001] futex(0x7f92ef7af7bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5013] <... fspick resumed>) = 4 [pid 5012] <... fspick resumed>) = 4 [pid 5012] futex(0x7f92ef7af7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5013] futex(0x7f92ef7af7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5011] <... fsconfig resumed>) = 0 [pid 5012] <... futex resumed>) = 1 [pid 5007] <... futex resumed>) = 0 [pid 5013] <... futex resumed>) = 1 [pid 5012] futex(0x7f92ef7af7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5011] futex(0x7f92ef7af7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5007] futex(0x7f92ef7af7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5006] <... futex resumed>) = 0 [pid 5013] futex(0x7f92ef7af7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5012] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5011] <... futex resumed>) = 1 [pid 5007] <... futex resumed>) = 0 [pid 5006] futex(0x7f92ef7af7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5005] <... futex resumed>) = 0 [pid 5013] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5012] read(-1, [pid 5011] futex(0x7f92ef7af7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5007] futex(0x7f92ef7af7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5006] <... futex resumed>) = 0 [pid 5005] futex(0x7f92ef7af7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5011] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5005] <... futex resumed>) = 0 [pid 5011] ioctl(-1, _IOC(_IOC_WRITE, 0x58, 0x29, 0x30), 0 [pid 5005] futex(0x7f92ef7af7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5011] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 5011] futex(0x7f92ef7af7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5005] <... futex resumed>) = 0 [pid 5011] futex(0x7f92ef7af7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5005] futex(0x7f92ef7af7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5011] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5005] <... futex resumed>) = 0 [pid 5013] read(-1, [pid 5012] <... read resumed>NULL, 0) = -1 EBADF (Bad file descriptor) [pid 5011] fsconfig(4, FSCONFIG_CMD_RECONFIGURE, NULL, NULL, 0 [pid 5014] <... fsconfig resumed>) = 0 [pid 5008] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5006] futex(0x7f92ef7af7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5005] futex(0x7f92ef7af7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5014] futex(0x7f92ef7af7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5013] <... read resumed>NULL, 0) = -1 EBADF (Bad file descriptor) [pid 5012] futex(0x7f92ef7af7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5008] futex(0x7f92ef7af7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5014] <... futex resumed>) = 0 [pid 5013] futex(0x7f92ef7af7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5012] <... futex resumed>) = 1 [pid 5008] <... futex resumed>) = 0 [pid 5007] <... futex resumed>) = 0 [pid 5014] ioctl(-1, _IOC(_IOC_WRITE, 0x58, 0x29, 0x30), 0 [pid 5013] <... futex resumed>) = 1 [pid 5012] futex(0x7f92ef7af7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5008] futex(0x7f92ef7af7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5007] futex(0x7f92ef7af7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5006] <... futex resumed>) = 0 [ 73.490585][ T5014] EXT4-fs (loop5): re-mounted 00000000-0000-0000-0000-000000000000. Quota mode: writeback. [ 73.509405][ T5010] EXT4-fs (loop1): warning: mounting fs with errors, running e2fsck is recommended [ 73.528862][ T5010] [EXT4 FS bs=4096, gc=1, bpg=32768, ipg=32, mo=c842c018, mo2=0002] [ 73.538170][ T5011] EXT4-fs (loop2): warning: mounting fs with errors, running e2fsck is recommended [pid 5014] <... ioctl resumed>) = -1 EBADF (Bad file descriptor) [pid 5013] futex(0x7f92ef7af7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5012] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5007] <... futex resumed>) = 0 [pid 5006] futex(0x7f92ef7af7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5014] futex(0x7f92ef7af7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5008] <... futex resumed>) = 0 [pid 5014] futex(0x7f92ef7af7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5008] futex(0x7f92ef7af7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5014] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5008] <... futex resumed>) = 0 [pid 5003] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5001] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5014] fsconfig(4, FSCONFIG_CMD_RECONFIGURE, NULL, NULL, 0 [pid 5008] futex(0x7f92ef7af7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5003] futex(0x7f92ef7af7bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5001] futex(0x7f92ef7af7cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5013] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5012] fsconfig(4, FSCONFIG_SET_FLAG, "ro", NULL, 0 [pid 5007] futex(0x7f92ef7af7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5006] <... futex resumed>) = 0 [pid 5003] <... futex resumed>) = 0 [pid 5001] <... futex resumed>) = 0 [pid 5003] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5001] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5003] <... mmap resumed>) = 0x7f92e72d5000 [pid 5001] <... mmap resumed>) = 0x7f92e72b4000 [pid 5003] mprotect(0x7f92e72d6000, 131072, PROT_READ|PROT_WRITE [pid 5001] mprotect(0x7f92e72b5000, 131072, PROT_READ|PROT_WRITE [pid 5005] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5005] futex(0x7f92ef7af7bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] <... mprotect resumed>) = 0 [pid 5001] <... mprotect resumed>) = 0 [pid 5005] <... futex resumed>) = 0 [pid 5003] clone(child_stack=0x7f92e72f53f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5001] clone(child_stack=0x7f92e72d43f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 5013] fsconfig(4, FSCONFIG_SET_FLAG, "ro", NULL, 0 [pid 5012] <... fsconfig resumed>) = 0 [pid 5006] futex(0x7f92ef7af7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5005] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0./strace-static-x86_64: Process 5032 attached [pid 5013] <... fsconfig resumed>) = 0 [pid 5012] futex(0x7f92ef7af7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5009] <... fsconfig resumed>) = 0 [pid 5005] <... mmap resumed>) = 0x7f92e72d5000 [pid 5003] <... clone resumed>, parent_tid=[5031], tls=0x7f92e72f5700, child_tidptr=0x7f92e72f59d0) = 5031 [pid 5001] <... clone resumed>, parent_tid=[5032], tls=0x7f92e72d4700, child_tidptr=0x7f92e72d49d0) = 5032 [pid 5032] set_robust_list(0x7f92e72d49e0, 24 [pid 5013] futex(0x7f92ef7af7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5012] <... futex resumed>) = 1 [pid 5009] futex(0x7f92ef7af7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5007] <... futex resumed>) = 0 [pid 5005] mprotect(0x7f92e72d6000, 131072, PROT_READ|PROT_WRITE [pid 5003] futex(0x7f92ef7af7b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5001] futex(0x7f92ef7af7c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5031 attached [pid 5032] <... set_robust_list resumed>) = 0 [pid 5028] <... fsconfig resumed>) = 0 [pid 5013] <... futex resumed>) = 1 [pid 5012] futex(0x7f92ef7af7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5009] <... futex resumed>) = 0 [ 73.555854][ T5009] EXT4-fs (loop0): re-mounted 00000000-0000-0000-0000-000000000000. Quota mode: writeback. [ 73.563012][ T5014] EXT4-fs (loop5): warning: mounting fs with errors, running e2fsck is recommended [ 73.568062][ T5010] EXT4-fs (loop1): re-mounted 00000000-0000-0000-0000-000000000000. Quota mode: writeback. [ 73.575517][ T5011] [EXT4 FS bs=4096, gc=1, bpg=32768, ipg=32, mo=c842c018, mo2=0002] [ 73.594290][ T5028] EXT4-fs (loop0): re-mounted 00000000-0000-0000-0000-000000000000. Quota mode: writeback. [pid 5007] futex(0x7f92ef7af7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5006] <... futex resumed>) = 0 [pid 5005] <... mprotect resumed>) = 0 [pid 5003] <... futex resumed>) = 0 [pid 5001] <... futex resumed>) = 0 [pid 5032] openat(AT_FDCWD, "blkio.bfq.io_merged", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5031] set_robust_list(0x7f92e72f59e0, 24 [pid 5028] futex(0x7f92ef7af7bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5013] futex(0x7f92ef7af7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5012] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5010] <... fsconfig resumed>) = 0 [pid 5009] futex(0x7f92ef7af7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5007] <... futex resumed>) = 0 [pid 5006] futex(0x7f92ef7af7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5028] <... futex resumed>) = 0 [pid 5013] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5012] fsconfig(4, FSCONFIG_CMD_RECONFIGURE, NULL, NULL, 0 [pid 5010] futex(0x7f92ef7af7ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5007] futex(0x7f92ef7af7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5006] <... futex resumed>) = 0 [pid 5028] futex(0x7f92ef7af7b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5013] fsconfig(4, FSCONFIG_CMD_RECONFIGURE, NULL, NULL, 0 [pid 5010] <... futex resumed>) = 0 [pid 5006] futex(0x7f92ef7af7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5010] futex(0x7f92ef7af7a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5005] clone(child_stack=0x7f92e72f53f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5033], tls=0x7f92e72f5700, child_tidptr=0x7f92e72f59d0) = 5033 [pid 5005] futex(0x7f92ef7af7b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5005] futex(0x7f92ef7af7bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5003] futex(0x7f92ef7af7bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5001] futex(0x7f92ef7af7cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5033 attached [pid 5031] <... set_robust_list resumed>) = 0 [pid 5033] set_robust_list(0x7f92e72f59e0, 24 [pid 5031] fsconfig(4, FSCONFIG_CMD_RECONFIGURE, NULL, NULL, 0 [pid 5033] <... set_robust_list resumed>) = 0 [pid 5033] fsconfig(4, FSCONFIG_CMD_RECONFIGURE, NULL, NULL, 0 [pid 5008] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5008] futex(0x7f92ef7af7bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5008] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f92e72d5000 [pid 5008] mprotect(0x7f92e72d6000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5008] clone(child_stack=0x7f92e72f53f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[5034], tls=0x7f92e72f5700, child_tidptr=0x7f92e72f59d0) = 5034 [pid 5008] futex(0x7f92ef7af7b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5008] futex(0x7f92ef7af7bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5031] <... fsconfig resumed>) = 0 ./strace-static-x86_64: Process 5034 attached [pid 5034] set_robust_list(0x7f92e72f59e0, 24) = 0 [pid 5031] futex(0x7f92ef7af7bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5034] fsconfig(4, FSCONFIG_CMD_RECONFIGURE, NULL, NULL, 0 [pid 5031] <... futex resumed>) = 1 [pid 5013] <... fsconfig resumed>) = 0 [pid 5003] <... futex resumed>) = 0 [pid 5031] futex(0x7f92ef7af7b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5003] futex(0x7f92ef7af7a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5003] futex(0x7f92ef7af7ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5010] <... futex resumed>) = 0 [pid 5013] futex(0x7f92ef7af7ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5010] openat(AT_FDCWD, "blkio.bfq.io_merged", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5006] <... futex resumed>) = 0 [ 73.612992][ T5014] [EXT4 FS bs=4096, gc=1, bpg=32768, ipg=32, mo=c842c018, mo2=0002] [ 73.625290][ T5031] EXT4-fs (loop1): re-mounted 00000000-0000-0000-0000-000000000000. Quota mode: writeback. [ 73.626627][ T5012] EXT4-fs (loop4): re-mounted 00000000-0000-0000-0000-000000000000. Quota mode: writeback. [ 73.646078][ T5013] EXT4-fs (loop3): re-mounted 00000000-0000-0000-0000-000000000000. Quota mode: writeback. [pid 5013] ioctl(-1, _IOC(_IOC_WRITE, 0x58, 0x29, 0x30), 0 [pid 5007] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5006] futex(0x7f92ef7af7a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5001] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5014] <... fsconfig resumed>) = 0 [pid 5011] <... fsconfig resumed>) = 0 [pid 5007] futex(0x7f92ef7af7bc, FUTEX_WAKE_PRIVATE, 1000000