./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor196061302

<...>
Warning: Permanently added '10.128.0.156' (ED25519) to the list of known hosts.
execve("./syz-executor196061302", ["./syz-executor196061302"], 0x7ffe21cbf6b0 /* 10 vars */) = 0
brk(NULL)                               = 0x555557cd4000
brk(0x555557cd4d00)                     = 0x555557cd4d00
arch_prctl(ARCH_SET_FS, 0x555557cd4380) = 0
set_tid_address(0x555557cd4650)         = 5830
set_robust_list(0x555557cd4660, 24)     = 0
rseq(0x555557cd4ca0, 0x20, 0, 0x53053053) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor196061302", 4096) = 27
getrandom("\x16\x42\xd0\xed\xae\xea\x9a\x30", 8, GRND_NONBLOCK) = 8
brk(NULL)                               = 0x555557cd4d00
brk(0x555557cf5d00)                     = 0x555557cf5d00
brk(0x555557cf6000)                     = 0x555557cf6000
mprotect(0x7ffa8e4f2000, 16384, PROT_READ) = 0
mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000
mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000
mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5831 attached
, child_tidptr=0x555557cd4650) = 5831
[pid  5830] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5831] set_robust_list(0x555557cd4660, 24) = 0
./strace-static-x86_64: Process 5832 attached
[pid  5831] mkdir("./syzkaller.tD83xW", 0700 <unfinished ...>
[pid  5832] set_robust_list(0x555557cd4660, 24) = 0
[pid  5830] <... clone resumed>, child_tidptr=0x555557cd4650) = 5832
[pid  5832] mkdir("./syzkaller.RXWU0n", 0700 <unfinished ...>
[pid  5830] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5833 attached
 <unfinished ...>
[pid  5831] <... mkdir resumed>)        = 0
[pid  5830] <... clone resumed>, child_tidptr=0x555557cd4650) = 5833
[pid  5833] set_robust_list(0x555557cd4660, 24 <unfinished ...>
[pid  5832] <... mkdir resumed>)        = 0
[pid  5831] chmod("./syzkaller.tD83xW", 0777 <unfinished ...>
[pid  5832] chmod("./syzkaller.RXWU0n", 0777 <unfinished ...>
[pid  5830] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5833] <... set_robust_list resumed>) = 0
[pid  5832] <... chmod resumed>)        = 0
[pid  5831] <... chmod resumed>)        = 0
[pid  5833] mkdir("./syzkaller.9GzEao", 0700 <unfinished ...>
[pid  5832] chdir("./syzkaller.RXWU0n" <unfinished ...>
[pid  5831] chdir("./syzkaller.tD83xW"./strace-static-x86_64: Process 5834 attached
 <unfinished ...>
[pid  5832] <... chdir resumed>)        = 0
[pid  5831] <... chdir resumed>)        = 0
[pid  5834] set_robust_list(0x555557cd4660, 24 <unfinished ...>
[pid  5830] <... clone resumed>, child_tidptr=0x555557cd4650) = 5834
[pid  5834] <... set_robust_list resumed>) = 0
[pid  5833] <... mkdir resumed>)        = 0
[pid  5832] mkdir("./0", 0777 <unfinished ...>
[pid  5831] mkdir("./0", 0777 <unfinished ...>
[pid  5830] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5833] chmod("./syzkaller.9GzEao", 0777) = 0
[pid  5833] chdir("./syzkaller.9GzEao" <unfinished ...>
[pid  5831] <... mkdir resumed>)        = 0
[pid  5833] <... chdir resumed>)        = 0
[pid  5834] mkdir("./syzkaller.zgQMNr", 0700 <unfinished ...>
[pid  5833] mkdir("./0", 0777 <unfinished ...>
[pid  5832] <... mkdir resumed>)        = 0
./strace-static-x86_64: Process 5835 attached
[pid  5833] <... mkdir resumed>)        = 0
[pid  5834] <... mkdir resumed>)        = 0
[pid  5832] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  5830] <... clone resumed>, child_tidptr=0x555557cd4650) = 5835
[pid  5834] chmod("./syzkaller.zgQMNr", 0777 <unfinished ...>
[pid  5831] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  5835] set_robust_list(0x555557cd4660, 24) = 0
[pid  5832] <... openat resumed>)       = 3
[pid  5835] mkdir("./syzkaller.3I5ulD", 0700 <unfinished ...>
[pid  5834] <... chmod resumed>)        = 0
[pid  5833] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  5831] <... openat resumed>)       = 3
[pid  5834] chdir("./syzkaller.zgQMNr") = 0
[pid  5832] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5831] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5833] <... openat resumed>)       = 3
[pid  5832] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  5835] <... mkdir resumed>)        = 0
[pid  5834] mkdir("./0", 0777 <unfinished ...>
[pid  5831] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  5835] chmod("./syzkaller.3I5ulD", 0777 <unfinished ...>
[pid  5833] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5835] <... chmod resumed>)        = 0
[pid  5833] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  5832] close(3 <unfinished ...>
[pid  5833] close(3 <unfinished ...>
[pid  5835] chdir("./syzkaller.3I5ulD" <unfinished ...>
[pid  5834] <... mkdir resumed>)        = 0
[pid  5832] <... close resumed>)        = 0
[pid  5831] close(3)                    = 0
[pid  5832] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5835] <... chdir resumed>)        = 0
[pid  5834] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  5833] <... close resumed>)        = 0
[pid  5831] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5835] mkdir("./0", 0777 <unfinished ...>
[pid  5834] <... openat resumed>)       = 3
[pid  5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5838 attached
./strace-static-x86_64: Process 5837 attached
 <unfinished ...>
[pid  5835] <... mkdir resumed>)        = 0
[pid  5834] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  5834] close(3)                    = 0
[pid  5834] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5840 attached
./strace-static-x86_64: Process 5839 attached
 <unfinished ...>
[pid  5838] set_robust_list(0x555557cd4660, 24 <unfinished ...>
[pid  5837] set_robust_list(0x555557cd4660, 24 <unfinished ...>
[pid  5834] <... clone resumed>, child_tidptr=0x555557cd4650) = 5840
[pid  5839] set_robust_list(0x555557cd4660, 24 <unfinished ...>
[pid  5840] set_robust_list(0x555557cd4660, 24 <unfinished ...>
[pid  5839] <... set_robust_list resumed>) = 0
[pid  5839] chdir("./0" <unfinished ...>
[pid  5840] <... set_robust_list resumed>) = 0
[pid  5839] <... chdir resumed>)        = 0
[pid  5840] chdir("./0" <unfinished ...>
[pid  5839] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5832] <... clone resumed>, child_tidptr=0x555557cd4650) = 5837
[pid  5831] <... clone resumed>, child_tidptr=0x555557cd4650) = 5838
[pid  5839] <... prctl resumed>)        = 0
[pid  5838] <... set_robust_list resumed>) = 0
[pid  5837] <... set_robust_list resumed>) = 0
[pid  5835] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  5838] chdir("./0" <unfinished ...>
[pid  5837] chdir("./0" <unfinished ...>
[pid  5835] <... openat resumed>)       = 3
[pid  5833] <... clone resumed>, child_tidptr=0x555557cd4650) = 5839
[pid  5840] <... chdir resumed>)        = 0
[pid  5839] setpgid(0, 0)               = 0
[pid  5840] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5839] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5840] <... prctl resumed>)        = 0
[pid  5839] <... openat resumed>)       = 3
[pid  5840] setpgid(0, 0)               = 0
[pid  5839] write(3, "1000", 4 <unfinished ...>
[pid  5840] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5839] <... write resumed>)        = 4
[pid  5839] close(3 <unfinished ...>
[pid  5840] <... openat resumed>)       = 3
[pid  5839] <... close resumed>)        = 0
[pid  5839] symlink("/dev/binderfs", "./binderfs" <unfinished ...>
[pid  5840] write(3, "1000", 4 <unfinished ...>
[pid  5839] <... symlink resumed>)      = 0
[pid  5840] <... write resumed>)        = 4
[pid  5840] close(3)                    = 0
executing program
[pid  5839] write(1, "executing program\n", 18 <unfinished ...>
[pid  5840] symlink("/dev/binderfs", "./binderfs" <unfinished ...>
[pid  5839] <... write resumed>)        = 18
[pid  5840] <... symlink resumed>)      = 0
[pid  5839] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5838] <... chdir resumed>)        = 0
[pid  5837] <... chdir resumed>)        = 0
[pid  5835] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5838] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5837] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5840] write(1, "executing program\n", 18 <unfinished ...>
[pid  5839] <... memfd_create resumed>) = 3
executing program
[pid  5835] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  5838] <... prctl resumed>)        = 0
[pid  5840] <... write resumed>)        = 18
[pid  5839] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5837] <... prctl resumed>)        = 0
[pid  5839] <... mmap resumed>)         = 0x7ffa86000000
[pid  5838] setpgid(0, 0 <unfinished ...>
[pid  5835] close(3 <unfinished ...>
[pid  5840] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5838] <... setpgid resumed>)      = 0
[pid  5837] setpgid(0, 0 <unfinished ...>
[pid  5835] <... close resumed>)        = 0
[pid  5840] <... memfd_create resumed>) = 3
[pid  5835] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5838] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 5841 attached
 <unfinished ...>
[pid  5840] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5837] <... setpgid resumed>)      = 0
[pid  5840] <... mmap resumed>)         = 0x7ffa86000000
[pid  5838] <... openat resumed>)       = 3
[pid  5837] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5835] <... clone resumed>, child_tidptr=0x555557cd4650) = 5841
[pid  5841] set_robust_list(0x555557cd4660, 24 <unfinished ...>
[pid  5838] write(3, "1000", 4 <unfinished ...>
[pid  5837] <... openat resumed>)       = 3
[pid  5841] <... set_robust_list resumed>) = 0
[pid  5841] chdir("./0" <unfinished ...>
[pid  5838] <... write resumed>)        = 4
[pid  5837] write(3, "1000", 4 <unfinished ...>
[pid  5841] <... chdir resumed>)        = 0
[pid  5841] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5841] setpgid(0, 0 <unfinished ...>
[pid  5838] close(3 <unfinished ...>
[pid  5837] <... write resumed>)        = 4
[pid  5838] <... close resumed>)        = 0
[pid  5837] close(3 <unfinished ...>
executing program
[pid  5838] symlink("/dev/binderfs", "./binderfs" <unfinished ...>
[pid  5837] <... close resumed>)        = 0
[pid  5841] <... setpgid resumed>)      = 0
[pid  5837] symlink("/dev/binderfs", "./binderfs" <unfinished ...>
[pid  5841] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5837] <... symlink resumed>)      = 0
[pid  5837] write(1, "executing program\n", 18) = 18
[pid  5841] <... openat resumed>)       = 3
[pid  5837] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5841] write(3, "1000", 4)         = 4
[pid  5841] close(3 <unfinished ...>
[pid  5838] <... symlink resumed>)      = 0
[pid  5837] <... memfd_create resumed>) = 3
[pid  5841] <... close resumed>)        = 0
[pid  5841] symlink("/dev/binderfs", "./binderfs" <unfinished ...>
[pid  5838] write(1, "executing program\n", 18executing program
 <unfinished ...>
[pid  5837] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0executing program
 <unfinished ...>
[pid  5841] <... symlink resumed>)      = 0
[pid  5838] <... write resumed>)        = 18
[pid  5837] <... mmap resumed>)         = 0x7ffa86000000
[pid  5841] write(1, "executing program\n", 18) = 18
[pid  5841] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5838] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5841] <... memfd_create resumed>) = 3
[pid  5841] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ffa86000000
[pid  5838] <... memfd_create resumed>) = 3
[pid  5838] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ffa86000000
[pid  5837] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...>
[pid  5839] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...>
[pid  5838] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...>
[pid  5840] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...>
[pid  5841] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...>
[pid  5837] <... write resumed>)        = 16777216
[pid  5837] munmap(0x7ffa86000000, 138412032 <unfinished ...>
[pid  5838] <... write resumed>)        = 16777216
[pid  5837] <... munmap resumed>)       = 0
[pid  5839] <... write resumed>)        = 16777216
[pid  5838] munmap(0x7ffa86000000, 138412032 <unfinished ...>
[pid  5837] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4
[pid  5841] <... write resumed>)        = 16777216
[pid  5837] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid  5841] munmap(0x7ffa86000000, 138412032 <unfinished ...>
[pid  5839] munmap(0x7ffa86000000, 138412032 <unfinished ...>
[pid  5841] <... munmap resumed>)       = 0
[pid  5840] <... write resumed>)        = 16777216
[pid  5841] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  5840] munmap(0x7ffa86000000, 138412032 <unfinished ...>
[pid  5837] <... ioctl resumed>)        = 0
[pid  5841] <... openat resumed>)       = 4
[pid  5838] <... munmap resumed>)       = 0
[pid  5838] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  5841] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid  5840] <... munmap resumed>)       = 0
[pid  5839] <... munmap resumed>)       = 0
[pid  5837] close(3 <unfinished ...>
[pid  5840] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  5838] <... openat resumed>)       = 4
[pid  5837] <... close resumed>)        = 0
[pid  5840] <... openat resumed>)       = 4
[pid  5838] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid  5837] close(4 <unfinished ...>
[   63.181906][ T5837] loop1: detected capacity change from 0 to 32768
[   63.219805][ T5841] loop4: detected capacity change from 0 to 32768
[pid  5841] <... ioctl resumed>)        = 0
[pid  5840] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid  5839] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  5837] <... close resumed>)        = 0
[pid  5841] close(3 <unfinished ...>
[pid  5839] <... openat resumed>)       = 4
[pid  5839] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid  5838] <... ioctl resumed>)        = 0
[pid  5838] close(3 <unfinished ...>
[pid  5841] <... close resumed>)        = 0
[pid  5837] mkdir("./file0", 0777 <unfinished ...>
[pid  5838] <... close resumed>)        = 0
[pid  5841] close(4 <unfinished ...>
[pid  5838] close(4 <unfinished ...>
[pid  5837] <... mkdir resumed>)        = 0
[pid  5841] <... close resumed>)        = 0
[pid  5838] <... close resumed>)        = 0
[pid  5837] mount("/dev/loop1", "./file0", "bcachefs", MS_POSIXACL, "\x62\x61\x63\x6b\x67\x72\x6f\x75\x6e\xfd\xff\x63\x6f\x6d\x70\x72\x65\x33\x73\x69\x6f\x6e\x3d\x6c\x7a\x34\x2c\x72\x65\x63\x6f\x6e\x73\x74\x72\x75\x63\x74\x5f\x61\x6c\x6c\x6f\x63\x2c\x6e\x6f\x63\x6f\x77\x2c\x6e\x6f\x65\x78\x63\x6c\x2c\x62\x74\x72\x65\x65\x5f\x6e\x6f\x64\x65\x5f\x70\x72\x65\x66\x65\x74\x63\x68\x2c\x6e\x6f\x72\x65\x63\x6f\x76\x65\x72\x79\x2c\x73\x68\x61\x72\x64\x5f\x69\x6e\x6f\x64\x65"... <unfinished ...>
[pid  5841] mkdir("./file0", 0777 <unfinished ...>
[pid  5838] mkdir("./file0", 0777 <unfinished ...>
[pid  5841] <... mkdir resumed>)        = 0
[pid  5838] <... mkdir resumed>)        = 0
[pid  5841] mount("/dev/loop4", "./file0", "bcachefs", MS_POSIXACL, "\x62\x61\x63\x6b\x67\x72\x6f\x75\x6e\xfd\xff\x63\x6f\x6d\x70\x72\x65\x33\x73\x69\x6f\x6e\x3d\x6c\x7a\x34\x2c\x72\x65\x63\x6f\x6e\x73\x74\x72\x75\x63\x74\x5f\x61\x6c\x6c\x6f\x63\x2c\x6e\x6f\x63\x6f\x77\x2c\x6e\x6f\x65\x78\x63\x6c\x2c\x62\x74\x72\x65\x65\x5f\x6e\x6f\x64\x65\x5f\x70\x72\x65\x66\x65\x74\x63\x68\x2c\x6e\x6f\x72\x65\x63\x6f\x76\x65\x72\x79\x2c\x73\x68\x61\x72\x64\x5f\x69\x6e\x6f\x64\x65"... <unfinished ...>
[pid  5838] mount("/dev/loop0", "./file0", "bcachefs", MS_POSIXACL, "\x62\x61\x63\x6b\x67\x72\x6f\x75\x6e\xfd\xff\x63\x6f\x6d\x70\x72\x65\x33\x73\x69\x6f\x6e\x3d\x6c\x7a\x34\x2c\x72\x65\x63\x6f\x6e\x73\x74\x72\x75\x63\x74\x5f\x61\x6c\x6c\x6f\x63\x2c\x6e\x6f\x63\x6f\x77\x2c\x6e\x6f\x65\x78\x63\x6c\x2c\x62\x74\x72\x65\x65\x5f\x6e\x6f\x64\x65\x5f\x70\x72\x65\x66\x65\x74\x63\x68\x2c\x6e\x6f\x72\x65\x63\x6f\x76\x65\x72\x79\x2c\x73\x68\x61\x72\x64\x5f\x69\x6e\x6f\x64\x65"... <unfinished ...>
[pid  5839] <... ioctl resumed>)        = 0
[pid  5839] close(3)                    = 0
[pid  5839] close(4)                    = 0
[pid  5839] mkdir("./file0", 0777)      = 0
[pid  5839] mount("/dev/loop2", "./file0", "bcachefs", MS_POSIXACL, "\x62\x61\x63\x6b\x67\x72\x6f\x75\x6e\xfd\xff\x63\x6f\x6d\x70\x72\x65\x33\x73\x69\x6f\x6e\x3d\x6c\x7a\x34\x2c\x72\x65\x63\x6f\x6e\x73\x74\x72\x75\x63\x74\x5f\x61\x6c\x6c\x6f\x63\x2c\x6e\x6f\x63\x6f\x77\x2c\x6e\x6f\x65\x78\x63\x6c\x2c\x62\x74\x72\x65\x65\x5f\x6e\x6f\x64\x65\x5f\x70\x72\x65\x66\x65\x74\x63\x68\x2c\x6e\x6f\x72\x65\x63\x6f\x76\x65\x72\x79\x2c\x73\x68\x61\x72\x64\x5f\x69\x6e\x6f\x64\x65"... <unfinished ...>
[pid  5840] <... ioctl resumed>)        = 0
[pid  5840] close(3)                    = 0
[pid  5840] close(4)                    = 0
[pid  5840] mkdir("./file0", 0777)      = 0
[   63.224309][ T5838] loop0: detected capacity change from 0 to 32768
[   63.228289][ T5840] loop3: detected capacity change from 0 to 32768
[   63.241428][ T5839] loop2: detected capacity change from 0 to 32768
[   63.463606][ T5840] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open
[   63.464375][ T5837] bcachefs (loop1): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=none,compression=lz4,fix_errors=ask,norecovery,nojournal_transaction_names,noexcl,reconstruct_alloc,nocow,no_data_io
[   63.484666][ T5840] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete
[   63.494304][ T5841] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open
[   63.515405][ T5841] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete
[   63.524359][ T5838] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open
[   63.538241][ T5839] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open
[   63.563759][ T5839] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete
[   63.572621][ T5838] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete
[   63.581711][ T5837] bcachefs (loop1): recovering from clean shutdown, journal seq 3338
[   63.619751][ T5840] bcachefs: bch2_fs_get_tree() error: EINVAL
[   63.626665][ T5837] bcachefs (loop1): Version upgrade required:
[   63.626665][ T5837] Version upgrade from 0.24: unwritten_extents to 1.7: mi_btree_bitmap incomplete
[   63.626665][ T5837] Doing incompatible version upgrade from 0.24: unwritten_extents to 1.13: inode_has_child_snapshots
[pid  5840] mount("/dev/loop3", "./file0", "bcachefs", MS_POSIXACL, "\x62\x61\x63\x6b\x67\x72\x6f\x75\x6e\xfd\xff\x63\x6f\x6d\x70\x72\x65\x33\x73\x69\x6f\x6e\x3d\x6c\x7a\x34\x2c\x72\x65\x63\x6f\x6e\x73\x74\x72\x75\x63\x74\x5f\x61\x6c\x6c\x6f\x63\x2c\x6e\x6f\x63\x6f\x77\x2c\x6e\x6f\x65\x78\x63\x6c\x2c\x62\x74\x72\x65\x65\x5f\x6e\x6f\x64\x65\x5f\x70\x72\x65\x66\x65\x74\x63\x68\x2c\x6e\x6f\x72\x65\x63\x6f\x76\x65\x72\x79\x2c\x73\x68\x61\x72\x64\x5f\x69\x6e\x6f\x64\x65"...) = -1 EINVAL (Invalid argument)
[pid  5840] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  5840] ioctl(3, LOOP_CLR_FD)       = 0
[   63.626665][ T5837]   running recovery passes: check_allocations,check_alloc_info,check_lrus,check_btree_backpointers,check_backpointers_to_extents,check_extents_to_backpointers,check_alloc_to_lru_refs,bucket_gens_init,check_snapshot_trees,check_snapshots,check_subvols,check_subvol_children,delete_dead_snapshots,check_inodes,check_extents,check_indirect_extents,check_dirents,check_xattrs,check_root,check_unreachable_inodes,check_subvolume_structure,check_directory_structure,check_nlinks,set_fs_needs_rebalance
[pid  5840] close(3 <unfinished ...>
[pid  5841] <... mount resumed>)        = -1 EINVAL (Invalid argument)
[pid  5841] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  5839] <... mount resumed>)        = -1 EINVAL (Invalid argument)
[pid  5841] <... openat resumed>)       = 3
[pid  5841] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5841] close(3 <unfinished ...>
[pid  5839] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  5839] ioctl(3, LOOP_CLR_FD)       = 0
[   63.759067][ T5841] bcachefs: bch2_fs_get_tree() error: EINVAL
[   63.759515][ T5839] bcachefs: bch2_fs_get_tree() error: EINVAL
[   63.819168][ T5837] bcachefs (loop1): dropping and reconstructing all alloc info
[pid  5839] close(3 <unfinished ...>
[pid  5840] <... close resumed>)        = 0
[pid  5840] mkdirat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000) = 0
[pid  5838] <... mount resumed>)        = -1 EINVAL (Invalid argument)
[pid  5840] exit_group(0)               = ?
[pid  5838] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  5838] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5838] close(3 <unfinished ...>
[pid  5840] +++ exited with 0 +++
[pid  5834] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5840, si_uid=0, si_status=0, si_utime=12 /* 0.12 s */, si_stime=31 /* 0.31 s */} ---
[   63.874505][ T5837] bcachefs (loop1): accounting_read...
[   63.884914][ T5838] bcachefs: bch2_fs_get_tree() error: EINVAL
[   63.915892][ T5837]  done
[   63.918724][ T5837] bcachefs (loop1): alloc_read... done
[   63.924264][ T5837] bcachefs (loop1): stripes_read... done
[pid  5834] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  5834] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5834] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid  5834] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5834] getdents64(3, 0x555557cd56f0 /* 5 entries */, 32768) = 384
[pid  5834] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5834] newfstatat(AT_FDCWD, "./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5834] unlink("./0/binderfs")      = 0
[pid  5834] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5834] newfstatat(AT_FDCWD, "./0/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5834] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5834] openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid  5834] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5834] getdents64(4, 0x555557cdd730 /* 2 entries */, 32768) = 48
[pid  5834] getdents64(4, 0x555557cdd730 /* 0 entries */, 32768) = 0
[pid  5834] close(4)                    = 0
[pid  5834] rmdir("./0/file0")          = 0
[pid  5834] umount2("./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5834] newfstatat(AT_FDCWD, "./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", {st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5834] umount2("./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5834] openat(AT_FDCWD, "./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid  5834] newfstatat(4, "", {st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5834] getdents64(4, 0x555557cdd730 /* 2 entries */, 32768) = 48
[pid  5834] getdents64(4, 0x555557cdd730 /* 0 entries */, 32768) = 0
[pid  5834] close(4)                    = 0
[pid  5834] rmdir("./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0
[pid  5834] getdents64(3, 0x555557cd56f0 /* 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/loop3", O_RDWR) = 3
[pid  5834] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  5834] close(3)                    = 0
[pid  5834] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5880 attached
 <unfinished ...>
[pid  5880] set_robust_list(0x555557cd4660, 24) = 0
[pid  5834] <... clone resumed>, child_tidptr=0x555557cd4650) = 5880
[   63.966715][ T5837] bcachefs (loop1): snapshots_read... done
[pid  5880] chdir("./1")                = 0
[pid  5880] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5880] setpgid(0, 0)               = 0
executing program
[pid  5880] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5880] write(3, "1000", 4)         = 4
[pid  5880] close(3)                    = 0
[pid  5880] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5880] write(1, "executing program\n", 18) = 18
[pid  5880] memfd_create("syzkaller", 0) = 3
[pid  5880] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ffa86000000
[pid  5839] <... close resumed>)        = 0
[pid  5839] mkdirat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 <unfinished ...>
[pid  5841] <... close resumed>)        = 0
[   63.972987][ T5837] bcachefs (loop1): check_allocations... done
[   64.063033][ T5837] bcachefs (loop1): going read-write
[pid  5839] <... mkdirat resumed>)      = 0
[pid  5841] mkdirat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000) = 0
[pid  5839] exit_group(0)               = ?
[pid  5841] exit_group(0)               = ?
[pid  5841] +++ exited with 0 +++
[pid  5839] +++ exited with 0 +++
[pid  5835] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5841, si_uid=0, si_status=0, si_utime=8 /* 0.08 s */, si_stime=43 /* 0.43 s */} ---
[pid  5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5839, si_uid=0, si_status=0, si_utime=7 /* 0.07 s */, si_stime=43 /* 0.43 s */} ---
[pid  5835] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  5833] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  5835] <... restart_syscall resumed>) = 0
[pid  5835] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5833] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5835] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5833] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5835] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid  5833] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid  5835] <... openat resumed>)       = 3
[pid  5837] <... mount resumed>)        = 0
[pid  5835] newfstatat(3, "",  <unfinished ...>
[pid  5833] <... openat resumed>)       = 3
[pid  5835] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5835] getdents64(3,  <unfinished ...>
[pid  5833] newfstatat(3, "",  <unfinished ...>
[pid  5835] <... getdents64 resumed>0x555557cd56f0 /* 5 entries */, 32768) = 384
[pid  5835] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5833] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5835] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5835] newfstatat(AT_FDCWD, "./0/binderfs",  <unfinished ...>
[pid  5833] getdents64(3,  <unfinished ...>
[pid  5835] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] <... getdents64 resumed>0x555557cd56f0 /* 5 entries */, 32768) = 384
[pid  5835] unlink("./0/binderfs" <unfinished ...>
[pid  5833] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5835] <... unlink resumed>)       = 0
[pid  5833] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5835] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./0/binderfs",  <unfinished ...>
[pid  5835] newfstatat(AT_FDCWD, "./0/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5835] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5833] unlink("./0/binderfs" <unfinished ...>
[pid  5837] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid  5835] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5835] openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid  5833] <... unlink resumed>)       = 0
[pid  5835] <... openat resumed>)       = 4
[pid  5837] <... openat resumed>)       = 3
[pid  5835] newfstatat(4, "",  <unfinished ...>
[pid  5833] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5837] chdir("./file0" <unfinished ...>
[pid  5835] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5837] <... chdir resumed>)        = 0
[pid  5835] getdents64(4,  <unfinished ...>
[pid  5833] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5837] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  5835] <... getdents64 resumed>0x555557cdd730 /* 2 entries */, 32768) = 48
[pid  5833] newfstatat(AT_FDCWD, "./0/file0",  <unfinished ...>
[pid  5837] <... openat resumed>)       = 4
[pid  5835] getdents64(4,  <unfinished ...>
[pid  5837] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid  5835] <... getdents64 resumed>0x555557cdd730 /* 0 entries */, 32768) = 0
[pid  5833] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5837] <... ioctl resumed>)        = 0
[pid  5835] close(4 <unfinished ...>
[pid  5833] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5837] close(4 <unfinished ...>
[pid  5835] <... close resumed>)        = 0
[pid  5833] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5837] <... close resumed>)        = 0
[pid  5835] rmdir("./0/file0" <unfinished ...>
[pid  5833] openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid  5837] mkdirat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 <unfinished ...>
[pid  5835] <... rmdir resumed>)        = 0
[pid  5833] <... openat resumed>)       = 4
[pid  5835] umount2("./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5833] newfstatat(4, "",  <unfinished ...>
[pid  5835] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5835] newfstatat(AT_FDCWD, "./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",  <unfinished ...>
[pid  5833] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5835] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[   64.100069][ T5837] bcachefs (loop1): done starting filesystem
[pid  5835] umount2("./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5833] getdents64(4,  <unfinished ...>
[pid  5835] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5835] openat(AT_FDCWD, "./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid  5833] <... getdents64 resumed>0x555557cdd730 /* 2 entries */, 32768) = 48
[pid  5835] <... openat resumed>)       = 4
[pid  5833] getdents64(4,  <unfinished ...>
[pid  5835] newfstatat(4, "",  <unfinished ...>
[pid  5833] <... getdents64 resumed>0x555557cdd730 /* 0 entries */, 32768) = 0
[pid  5835] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5833] close(4 <unfinished ...>
[pid  5835] getdents64(4, 0x555557cdd730 /* 2 entries */, 32768) = 48
[pid  5833] <... close resumed>)        = 0
[pid  5835] getdents64(4, 0x555557cdd730 /* 0 entries */, 32768) = 0
[pid  5835] close(4)                    = 0
[pid  5835] rmdir("./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0
[pid  5835] getdents64(3, 0x555557cd56f0 /* 0 entries */, 32768) = 0
[pid  5835] close(3)                    = 0
[pid  5835] rmdir("./0")                = 0
[pid  5833] rmdir("./0/file0" <unfinished ...>
[pid  5837] <... mkdirat resumed>)      = 0
[pid  5833] <... rmdir resumed>)        = 0
[pid  5835] mkdir("./1", 0777 <unfinished ...>
[pid  5833] umount2("./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5835] <... mkdir resumed>)        = 0
[pid  5833] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5835] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  5833] newfstatat(AT_FDCWD, "./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", {st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] umount2("./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5835] <... openat resumed>)       = 3
[pid  5833] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5837] exit_group(0 <unfinished ...>
[pid  5833] openat(AT_FDCWD, "./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid  5833] newfstatat(4, "", {st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5835] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5833] getdents64(4,  <unfinished ...>
[pid  5838] <... close resumed>)        = 0
[pid  5837] <... exit_group resumed>)   = ?
[pid  5835] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  5833] <... getdents64 resumed>0x555557cdd730 /* 2 entries */, 32768) = 48
[pid  5835] close(3 <unfinished ...>
[pid  5833] getdents64(4,  <unfinished ...>
[pid  5835] <... close resumed>)        = 0
[pid  5833] <... getdents64 resumed>0x555557cdd730 /* 0 entries */, 32768) = 0
[pid  5835] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5833] close(4)                    = 0
[pid  5837] +++ exited with 0 +++
[pid  5832] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5837, si_uid=0, si_status=0, si_utime=7 /* 0.07 s */, si_stime=44 /* 0.44 s */} ---
[pid  5832] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  5835] <... clone resumed>, child_tidptr=0x555557cd4650) = 5883
[pid  5833] rmdir("./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" <unfinished ...>
[pid  5832] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5832] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid  5832] newfstatat(3, "", ./strace-static-x86_64: Process 5883 attached
 <unfinished ...>
[pid  5833] <... rmdir resumed>)        = 0
[pid  5832] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5883] set_robust_list(0x555557cd4660, 24 <unfinished ...>
[pid  5833] getdents64(3,  <unfinished ...>
[pid  5832] getdents64(3,  <unfinished ...>
[pid  5883] <... set_robust_list resumed>) = 0
[pid  5833] <... getdents64 resumed>0x555557cd56f0 /* 0 entries */, 32768) = 0
[pid  5883] chdir("./1" <unfinished ...>
[pid  5833] close(3 <unfinished ...>
[pid  5832] <... getdents64 resumed>0x555557cd56f0 /* 4 entries */, 32768) = 112
[pid  5833] <... close resumed>)        = 0
[pid  5832] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5883] <... chdir resumed>)        = 0
[pid  5833] rmdir("./0" <unfinished ...>
[pid  5832] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5883] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5838] mkdirat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 <unfinished ...>
[pid  5832] newfstatat(AT_FDCWD, "./0/binderfs",  <unfinished ...>
[pid  5883] <... prctl resumed>)        = 0
[pid  5838] <... mkdirat resumed>)      = 0
[pid  5833] <... rmdir resumed>)        = 0
[pid  5832] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5883] setpgid(0, 0 <unfinished ...>
[pid  5833] mkdir("./1", 0777 <unfinished ...>
[pid  5883] <... setpgid resumed>)      = 0
[pid  5832] unlink("./0/binderfs" <unfinished ...>
[pid  5838] exit_group(0 <unfinished ...>
[pid  5832] <... unlink resumed>)       = 0
[pid  5838] <... exit_group resumed>)   = ?
[pid  5832] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5883] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5838] +++ exited with 0 +++
[pid  5833] <... mkdir resumed>)        = 0
[pid  5831] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5838, si_uid=0, si_status=0, si_utime=7 /* 0.07 s */, si_stime=38 /* 0.38 s */} ---
[pid  5883] <... openat resumed>)       = 3
[pid  5833] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  5831] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  5833] <... openat resumed>)       = 3
[pid  5883] write(3, "1000", 4 <unfinished ...>
[pid  5833] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5883] <... write resumed>)        = 4
[pid  5833] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  5883] close(3)                    = 0
[pid  5833] close(3 <unfinished ...>
[pid  5883] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5833] <... close resumed>)        = 0
[pid  5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5831] <... restart_syscall resumed>) = 0
./strace-static-x86_64: Process 5884 attached
[pid  5833] <... clone resumed>, child_tidptr=0x555557cd4650) = 5884
[pid  5831] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5884] set_robust_list(0x555557cd4660, 24 <unfinished ...>
[pid  5831] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5884] <... set_robust_list resumed>) = 0
[pid  5831] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid  5884] chdir("./1" <unfinished ...>
[pid  5831] <... openat resumed>)       = 3
[pid  5831] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5831] getdents64(3, 0x555557cd56f0 /* 5 entries */, 32768) = 384
[pid  5831] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5831] newfstatat(AT_FDCWD, "./0/binderfs",  <unfinished ...>
[pid  5883] write(1, "executing program\n", 18executing program
) = 18
[pid  5831] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5831] unlink("./0/binderfs")      = 0
[pid  5831] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5831] newfstatat(AT_FDCWD, "./0/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5831] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5884] <... chdir resumed>)        = 0
[pid  5831] openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid  5884] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5831] newfstatat(4, "",  <unfinished ...>
[pid  5884] <... prctl resumed>)        = 0
[pid  5831] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5884] setpgid(0, 0 <unfinished ...>
[pid  5831] getdents64(4,  <unfinished ...>
[pid  5884] <... setpgid resumed>)      = 0
[pid  5831] <... getdents64 resumed>0x555557cdd730 /* 2 entries */, 32768) = 48
[pid  5884] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5831] getdents64(4,  <unfinished ...>
[pid  5884] <... openat resumed>)       = 3
[pid  5883] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5831] <... getdents64 resumed>0x555557cdd730 /* 0 entries */, 32768) = 0
[   64.213289][ T5837] syz-executor196 (5837) used greatest stack depth: 18160 bytes left
[   64.235510][ T5832] bcachefs (loop1): shutting down
[   64.240731][ T5832] bcachefs (loop1): going read-only
[   64.248252][ T5832] bcachefs (loop1): finished waiting for writes to stop
[pid  5884] write(3, "1000", 4 <unfinished ...>
[pid  5831] close(4 <unfinished ...>
[pid  5883] <... memfd_create resumed>) = 3
[pid  5883] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ffa86000000
[pid  5831] <... close resumed>)        = 0
[pid  5831] rmdir("./0/file0" <unfinished ...>
[pid  5884] <... write resumed>)        = 4
[pid  5831] <... rmdir resumed>)        = 0
[pid  5884] close(3 <unfinished ...>
[pid  5831] umount2("./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5884] <... close resumed>)        = 0
[pid  5831] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5884] symlink("/dev/binderfs", "./binderfs" <unfinished ...>
[pid  5831] newfstatat(AT_FDCWD, "./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",  <unfinished ...>
[pid  5884] <... symlink resumed>)      = 0
[pid  5831] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
executing program
[pid  5831] umount2("./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5884] write(1, "executing program\n", 18 <unfinished ...>
[pid  5831] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5884] <... write resumed>)        = 18
[pid  5884] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5831] openat(AT_FDCWD, "./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid  5884] <... memfd_create resumed>) = 3
[pid  5831] newfstatat(4, "", {st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5884] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5831] getdents64(4,  <unfinished ...>
[pid  5884] <... mmap resumed>)         = 0x7ffa86000000
[pid  5831] <... getdents64 resumed>0x555557cdd730 /* 2 entries */, 32768) = 48
[pid  5831] getdents64(4, 0x555557cdd730 /* 0 entries */, 32768) = 0
[pid  5831] close(4)                    = 0
[pid  5831] rmdir("./0/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0
[pid  5831] getdents64(3, 0x555557cd56f0 /* 0 entries */, 32768) = 0
[pid  5831] close(3)                    = 0
[   64.259422][ T5832] bcachefs (loop1): flushing journal and stopping allocators, journal seq 3339
[pid  5831] rmdir("./0")                = 0
[pid  5831] mkdir("./1", 0777)          = 0
[pid  5831] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  5831] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  5831] close(3)                    = 0
[pid  5831] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5885 attached
, child_tidptr=0x555557cd4650) = 5885
[pid  5885] set_robust_list(0x555557cd4660, 24) = 0
[pid  5885] chdir("./1")                = 0
[pid  5885] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5885] setpgid(0, 0)               = 0
[pid  5885] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5885] write(3, "1000", 4)         = 4
[pid  5885] close(3)                    = 0
[pid  5885] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid  5885] write(1, "executing program\n", 18) = 18
[pid  5885] memfd_create("syzkaller", 0) = 3
[pid  5885] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ffa86000000
[   64.355912][ T3613] bcachefs (loop1): bch2_write_super(): fatal error  loop1: Superblock write was silently dropped! (seq 0 expected 53)
[   64.385196][ T3613] bcachefs (loop1): fatal error - emergency read only
[   64.394613][ T5832] bcachefs (loop1): flushing journal and stopping allocators complete, journal seq 3342
[   64.435966][ T5832] bcachefs (loop1): unshutdown complete, journal seq 3342
[   64.444347][ T5832] bcachefs (loop1): done going read-only, filesystem not clean
[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"..., 16777216 <unfinished ...>
[   64.578961][ T5832] bcachefs (loop1): shutdown complete
[pid  5884] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...>
[pid  5883] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...>
[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"..., 16777216 <unfinished ...>
[pid  5880] <... write resumed>)        = 16777216
[pid  5880] munmap(0x7ffa86000000, 138412032) = 0
[pid  5880] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4
[pid  5884] <... write resumed>)        = 16777216
[pid  5880] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid  5884] munmap(0x7ffa86000000, 138412032 <unfinished ...>
[pid  5880] <... ioctl resumed>)        = 0
[pid  5884] <... munmap resumed>)       = 0
[pid  5880] close(3 <unfinished ...>
[pid  5884] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  5880] <... close resumed>)        = 0
[pid  5880] close(4 <unfinished ...>
[pid  5884] <... openat resumed>)       = 4
[pid  5884] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid  5880] <... close resumed>)        = 0
[pid  5880] mkdir("./file0", 0777)      = 0
[pid  5880] mount("/dev/loop3", "./file0", "bcachefs", MS_POSIXACL, "\x62\x61\x63\x6b\x67\x72\x6f\x75\x6e\xfd\xff\x63\x6f\x6d\x70\x72\x65\x33\x73\x69\x6f\x6e\x3d\x6c\x7a\x34\x2c\x72\x65\x63\x6f\x6e\x73\x74\x72\x75\x63\x74\x5f\x61\x6c\x6c\x6f\x63\x2c\x6e\x6f\x63\x6f\x77\x2c\x6e\x6f\x65\x78\x63\x6c\x2c\x62\x74\x72\x65\x65\x5f\x6e\x6f\x64\x65\x5f\x70\x72\x65\x66\x65\x74\x63\x68\x2c\x6e\x6f\x72\x65\x63\x6f\x76\x65\x72\x79\x2c\x73\x68\x61\x72\x64\x5f\x69\x6e\x6f\x64\x65"... <unfinished ...>
[pid  5884] <... ioctl resumed>)        = 0
[pid  5884] close(3)                    = 0
[pid  5884] close(4)                    = 0
[pid  5884] mkdir("./file0", 0777)      = 0
[   64.854941][ T5880] loop3: detected capacity change from 0 to 32768
[   64.884612][ T5884] loop2: detected capacity change from 0 to 32768
[pid  5884] mount("/dev/loop2", "./file0", "bcachefs", MS_POSIXACL, "\x62\x61\x63\x6b\x67\x72\x6f\x75\x6e\xfd\xff\x63\x6f\x6d\x70\x72\x65\x33\x73\x69\x6f\x6e\x3d\x6c\x7a\x34\x2c\x72\x65\x63\x6f\x6e\x73\x74\x72\x75\x63\x74\x5f\x61\x6c\x6c\x6f\x63\x2c\x6e\x6f\x63\x6f\x77\x2c\x6e\x6f\x65\x78\x63\x6c\x2c\x62\x74\x72\x65\x65\x5f\x6e\x6f\x64\x65\x5f\x70\x72\x65\x66\x65\x74\x63\x68\x2c\x6e\x6f\x72\x65\x63\x6f\x76\x65\x72\x79\x2c\x73\x68\x61\x72\x64\x5f\x69\x6e\x6f\x64\x65"... <unfinished ...>
[pid  5883] <... write resumed>)        = 16777216
[pid  5883] munmap(0x7ffa86000000, 138412032 <unfinished ...>
[pid  5885] <... write resumed>)        = 16777216
[pid  5885] munmap(0x7ffa86000000, 138412032 <unfinished ...>
[pid  5883] <... munmap resumed>)       = 0
[pid  5883] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4
[pid  5883] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid  5885] <... munmap resumed>)       = 0
[pid  5883] <... ioctl resumed>)        = 0
[pid  5885] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5883] close(3 <unfinished ...>
[pid  5885] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid  5883] <... close resumed>)        = 0
[pid  5883] close(4 <unfinished ...>
[pid  5885] <... ioctl resumed>)        = 0
[pid  5883] <... close resumed>)        = 0
[pid  5883] mkdir("./file0", 0777)      = 0
[pid  5885] close(3 <unfinished ...>
[pid  5883] mount("/dev/loop4", "./file0", "bcachefs", MS_POSIXACL, "\x62\x61\x63\x6b\x67\x72\x6f\x75\x6e\xfd\xff\x63\x6f\x6d\x70\x72\x65\x33\x73\x69\x6f\x6e\x3d\x6c\x7a\x34\x2c\x72\x65\x63\x6f\x6e\x73\x74\x72\x75\x63\x74\x5f\x61\x6c\x6c\x6f\x63\x2c\x6e\x6f\x63\x6f\x77\x2c\x6e\x6f\x65\x78\x63\x6c\x2c\x62\x74\x72\x65\x65\x5f\x6e\x6f\x64\x65\x5f\x70\x72\x65\x66\x65\x74\x63\x68\x2c\x6e\x6f\x72\x65\x63\x6f\x76\x65\x72\x79\x2c\x73\x68\x61\x72\x64\x5f\x69\x6e\x6f\x64\x65"... <unfinished ...>
[pid  5885] <... close resumed>)        = 0
[pid  5885] close(4)                    = 0
[pid  5885] mkdir("./file0", 0777)      = 0
[   64.986338][ T5883] loop4: detected capacity change from 0 to 32768
[   65.004895][ T5885] loop0: detected capacity change from 0 to 32768
[   65.386480][ T5885] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open
[   65.395976][ T5883] bcachefs (loop4): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=none,compression=lz4,fix_errors=ask,norecovery,nojournal_transaction_names,noexcl,reconstruct_alloc,nocow,no_data_io
[   65.417566][ T5885] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete
[   65.426377][ T5884] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open
[   65.446484][ T5883] bcachefs (loop4): recovering from clean shutdown, journal seq 3338
[   65.460119][ T5884] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete
[   65.468641][ T5880] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open
[   65.485107][ T5883] bcachefs (loop4): Version upgrade required:
[   65.485107][ T5883] Version upgrade from 0.24: unwritten_extents to 1.7: mi_btree_bitmap incomplete
[   65.485107][ T5883] Doing incompatible version upgrade from 0.24: unwritten_extents to 1.13: inode_has_child_snapshots
[   65.485107][ T5883]   running recovery passes: check_allocations,check_alloc_info,check_lrus,check_btree_backpointers,check_backpointers_to_extents,check_extents_to_backpointers,check_alloc_to_lru_refs,bucket_gens_init,check_snapshot_trees,check_snapshots,check_subvols,check_subvol_children,delete_dead_snapshots,check_inodes,check_extents,check_indirect_extents,check_dirents,check_xattrs,check_root,check_unreachable_inodes,check_subvolume_structure,check_directory_structure,check_nlinks,set_fs_needs_rebalance
[   65.564681][ T5880] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete
[pid  5885] mount("/dev/loop0", "./file0", "bcachefs", MS_POSIXACL, "\x62\x61\x63\x6b\x67\x72\x6f\x75\x6e\xfd\xff\x63\x6f\x6d\x70\x72\x65\x33\x73\x69\x6f\x6e\x3d\x6c\x7a\x34\x2c\x72\x65\x63\x6f\x6e\x73\x74\x72\x75\x63\x74\x5f\x61\x6c\x6c\x6f\x63\x2c\x6e\x6f\x63\x6f\x77\x2c\x6e\x6f\x65\x78\x63\x6c\x2c\x62\x74\x72\x65\x65\x5f\x6e\x6f\x64\x65\x5f\x70\x72\x65\x66\x65\x74\x63\x68\x2c\x6e\x6f\x72\x65\x63\x6f\x76\x65\x72\x79\x2c\x73\x68\x61\x72\x64\x5f\x69\x6e\x6f\x64\x65"...) = -1 EINVAL (Invalid argument)
[pid  5885] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  5885] ioctl(3, LOOP_CLR_FD)       = 0
[   65.637195][ T5883] bcachefs (loop4): dropping and reconstructing all alloc info
[   65.659866][ T5885] bcachefs: bch2_fs_get_tree() error: EINVAL
[pid  5885] close(3 <unfinished ...>
[pid  5884] <... mount resumed>)        = -1 EINVAL (Invalid argument)
[pid  5832] <... umount2 resumed>)      = 0
[pid  5884] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  5884] ioctl(3, LOOP_CLR_FD)       = 0
[   65.718751][ T5883] bcachefs (loop4): accounting_read...
[   65.735161][ T5884] bcachefs: bch2_fs_get_tree() error: EINVAL
[   65.766812][ T5883]  done
[   65.769628][ T5883] bcachefs (loop4): alloc_read... done
[pid  5884] close(3 <unfinished ...>
[pid  5832] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5832] newfstatat(AT_FDCWD, "./0/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5832] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5832] openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid  5832] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5832] getdents64(4, 0x555557cdd730 /* 2 entries */, 32768) = 48
[pid  5832] getdents64(4,  <unfinished ...>
[pid  5880] <... mount resumed>)        = -1 EINVAL (Invalid argument)
[pid  5880] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  5832] <... getdents64 resumed>0x555557cdd730 /* 0 entries */, 32768) = 0
[pid  5880] <... openat resumed>)       = 3
[pid  5832] close(4 <unfinished ...>
[pid  5880] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5832] <... close resumed>)        = 0
[pid  5880] <... ioctl resumed>)        = 0
[pid  5832] rmdir("./0/file0")          = 0
[pid  5880] close(3 <unfinished ...>
[pid  5832] getdents64(3, 0x555557cd56f0 /* 0 entries */, 32768) = 0
[pid  5832] close(3)                    = 0
[pid  5832] rmdir("./0")                = 0
[pid  5832] mkdir("./1", 0777)          = 0
[   65.794579][ T5883] bcachefs (loop4): stripes_read... done
[   65.807872][ T5880] bcachefs: bch2_fs_get_tree() error: EINVAL
[   65.813040][ T5883] bcachefs (loop4): snapshots_read... done
[pid  5832] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  5832] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  5832] close(3)                    = 0
[pid  5832] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5916 attached
 <unfinished ...>
[pid  5885] <... close resumed>)        = 0
[pid  5916] set_robust_list(0x555557cd4660, 24 <unfinished ...>
[pid  5832] <... clone resumed>, child_tidptr=0x555557cd4650) = 5916
[pid  5916] <... set_robust_list resumed>) = 0
[pid  5916] chdir("./1")                = 0
[pid  5916] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5885] mkdirat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 <unfinished ...>
[pid  5916] <... prctl resumed>)        = 0
[pid  5885] <... mkdirat resumed>)      = 0
[pid  5885] exit_group(0)               = ?
[pid  5916] setpgid(0, 0 <unfinished ...>
[pid  5885] +++ exited with 0 +++
[pid  5916] <... setpgid resumed>)      = 0
[pid  5831] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5885, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=50 /* 0.50 s */} ---
[pid  5916] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5831] umount2("./1", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5916] write(3, "1000", 4 <unfinished ...>
[pid  5831] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5916] <... write resumed>)        = 4
[pid  5831] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid  5916] close(3)                    = 0
[pid  5831] <... openat resumed>)       = 3
[pid  5916] symlink("/dev/binderfs", "./binderfs" <unfinished ...>
[pid  5831] newfstatat(3, "", executing program
 <unfinished ...>
[pid  5916] <... symlink resumed>)      = 0
[pid  5831] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5916] write(1, "executing program\n", 18 <unfinished ...>
[pid  5831] getdents64(3,  <unfinished ...>
[pid  5916] <... write resumed>)        = 18
[pid  5831] <... getdents64 resumed>0x555557cd56f0 /* 5 entries */, 32768) = 384
[pid  5831] umount2("./1/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5831] newfstatat(AT_FDCWD, "./1/binderfs",  <unfinished ...>
[pid  5916] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5831] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5916] <... memfd_create resumed>) = 3
[pid  5831] unlink("./1/binderfs" <unfinished ...>
[pid  5916] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5831] <... unlink resumed>)       = 0
[pid  5916] <... mmap resumed>)         = 0x7ffa86000000
[pid  5831] umount2("./1/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5831] newfstatat(AT_FDCWD, "./1/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5831] umount2("./1/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5831] openat(AT_FDCWD, "./1/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid  5831] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5831] getdents64(4, 0x555557cdd730 /* 2 entries */, 32768) = 48
[pid  5831] getdents64(4, 0x555557cdd730 /* 0 entries */, 32768) = 0
[pid  5831] close(4)                    = 0
[pid  5831] rmdir("./1/file0")          = 0
[pid  5831] umount2("./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5831] newfstatat(AT_FDCWD, "./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", {st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5831] umount2("./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5831] openat(AT_FDCWD, "./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid  5831] newfstatat(4, "", {st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5831] getdents64(4, 0x555557cdd730 /* 2 entries */, 32768) = 48
[pid  5831] getdents64(4, 0x555557cdd730 /* 0 entries */, 32768) = 0
[pid  5831] close(4)                    = 0
[pid  5831] rmdir("./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0
[pid  5831] getdents64(3, 0x555557cd56f0 /* 0 entries */, 32768) = 0
[pid  5831] close(3)                    = 0
[pid  5831] rmdir("./1")                = 0
[pid  5831] mkdir("./2", 0777)          = 0
[pid  5831] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  5831] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  5831] close(3)                    = 0
[pid  5831] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5917 attached
, child_tidptr=0x555557cd4650) = 5917
[pid  5917] set_robust_list(0x555557cd4660, 24) = 0
[pid  5917] chdir("./2")                = 0
[pid  5917] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5917] setpgid(0, 0)               = 0
[pid  5917] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5917] write(3, "1000", 4)         = 4
[pid  5917] close(3)                    = 0
[pid  5917] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid  5917] write(1, "executing program\n", 18) = 18
[pid  5917] memfd_create("syzkaller", 0) = 3
[   65.832392][ T5883] bcachefs (loop4): check_allocations... done
[pid  5917] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ffa86000000
[pid  5884] <... close resumed>)        = 0
[pid  5884] mkdirat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000) = 0
[pid  5884] exit_group(0)               = ?
[   65.996233][ T5883] bcachefs (loop4): going read-write
[pid  5884] +++ exited with 0 +++
[pid  5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5884, si_uid=0, si_status=0, si_utime=7 /* 0.07 s */, si_stime=39 /* 0.39 s */} ---
[pid  5833] umount2("./1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid  5833] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5833] getdents64(3, 0x555557cd56f0 /* 5 entries */, 32768) = 384
[pid  5833] umount2("./1/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./1/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] unlink("./1/binderfs")      = 0
[pid  5833] umount2("./1/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./1/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] umount2("./1/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] openat(AT_FDCWD, "./1/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid  5833] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5833] getdents64(4, 0x555557cdd730 /* 2 entries */, 32768) = 48
[pid  5833] getdents64(4,  <unfinished ...>
[pid  5883] <... mount resumed>)        = 0
[pid  5833] <... getdents64 resumed>0x555557cdd730 /* 0 entries */, 32768) = 0
[pid  5833] close(4)                    = 0
[pid  5833] rmdir("./1/file0" <unfinished ...>
[pid  5883] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid  5880] <... close resumed>)        = 0
[pid  5833] <... rmdir resumed>)        = 0
[pid  5880] mkdirat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 <unfinished ...>
[pid  5833] umount2("./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5880] <... mkdirat resumed>)      = 0
[pid  5883] <... openat resumed>)       = 3
[pid  5833] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5883] chdir("./file0" <unfinished ...>
[pid  5880] exit_group(0 <unfinished ...>
[pid  5833] newfstatat(AT_FDCWD, "./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",  <unfinished ...>
[pid  5883] <... chdir resumed>)        = 0
[pid  5880] <... exit_group resumed>)   = ?
[pid  5833] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5883] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  5833] umount2("./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5883] <... openat resumed>)       = 4
[pid  5880] +++ exited with 0 +++
[pid  5883] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid  5833] openat(AT_FDCWD, "./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid  5883] <... ioctl resumed>)        = 0
[pid  5883] close(4 <unfinished ...>
[pid  5834] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5880, si_uid=0, si_status=0, si_utime=8 /* 0.08 s */, si_stime=38 /* 0.38 s */} ---
[pid  5833] <... openat resumed>)       = 4
[pid  5883] <... close resumed>)        = 0
[pid  5834] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  5833] newfstatat(4, "", {st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5833] getdents64(4, 0x555557cdd730 /* 2 entries */, 32768) = 48
[pid  5833] getdents64(4, 0x555557cdd730 /* 0 entries */, 32768) = 0
[pid  5833] close(4)                    = 0
[pid  5833] rmdir("./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" <unfinished ...>
[pid  5883] mkdirat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 <unfinished ...>
[pid  5834] <... restart_syscall resumed>) = 0
[pid  5833] <... rmdir resumed>)        = 0
[pid  5833] getdents64(3, 0x555557cd56f0 /* 0 entries */, 32768) = 0
[   66.036141][ T5883] bcachefs (loop4): done starting filesystem
[pid  5834] umount2("./1", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5833] close(3 <unfinished ...>
[pid  5834] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5833] <... close resumed>)        = 0
[pid  5834] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid  5833] rmdir("./1" <unfinished ...>
[pid  5883] <... mkdirat resumed>)      = 0
[pid  5834] <... openat resumed>)       = 3
[pid  5833] <... rmdir resumed>)        = 0
[pid  5834] newfstatat(3, "",  <unfinished ...>
[pid  5833] mkdir("./2", 0777 <unfinished ...>
[pid  5883] exit_group(0 <unfinished ...>
[pid  5834] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5833] <... mkdir resumed>)        = 0
[pid  5834] getdents64(3,  <unfinished ...>
[pid  5883] <... exit_group resumed>)   = ?
[pid  5834] <... getdents64 resumed>0x555557cd56f0 /* 5 entries */, 32768) = 384
[pid  5833] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  5833] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5883] +++ exited with 0 +++
[pid  5834] umount2("./1/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5833] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  5835] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5883, si_uid=0, si_status=0, si_utime=11 /* 0.11 s */, si_stime=31 /* 0.31 s */} ---
[pid  5834] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5833] close(3 <unfinished ...>
[pid  5834] newfstatat(AT_FDCWD, "./1/binderfs",  <unfinished ...>
[pid  5833] <... close resumed>)        = 0
[pid  5834] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5834] unlink("./1/binderfs")      = 0
[pid  5834] umount2("./1/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5833] <... clone resumed>, child_tidptr=0x555557cd4650) = 5920
[pid  5834] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5834] newfstatat(AT_FDCWD, "./1/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
./strace-static-x86_64: Process 5920 attached
[pid  5834] umount2("./1/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5920] set_robust_list(0x555557cd4660, 24) = 0
[pid  5835] umount2("./1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5920] chdir("./2" <unfinished ...>
[pid  5835] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid  5835] newfstatat(3, "",  <unfinished ...>
[pid  5920] <... chdir resumed>)        = 0
[pid  5835] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5834] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5920] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5835] getdents64(3,  <unfinished ...>
[pid  5834] openat(AT_FDCWD, "./1/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid  5835] <... getdents64 resumed>0x555557cd56f0 /* 4 entries */, 32768) = 112
[pid  5834] <... openat resumed>)       = 4
[pid  5835] umount2("./1/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5834] newfstatat(4, "",  <unfinished ...>
[pid  5835] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5834] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5835] newfstatat(AT_FDCWD, "./1/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5835] unlink("./1/binderfs")      = 0
[pid  5920] <... prctl resumed>)        = 0
[pid  5835] umount2("./1/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5920] setpgid(0, 0 <unfinished ...>
[pid  5834] getdents64(4, 0x555557cdd730 /* 2 entries */, 32768) = 48
[pid  5834] getdents64(4, 0x555557cdd730 /* 0 entries */, 32768) = 0
[pid  5920] <... setpgid resumed>)      = 0
[pid  5834] close(4 <unfinished ...>
[pid  5920] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5834] <... close resumed>)        = 0
[pid  5834] rmdir("./1/file0")          = 0
[pid  5834] umount2("./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5834] newfstatat(AT_FDCWD, "./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",  <unfinished ...>
[pid  5920] <... openat resumed>)       = 3
[pid  5834] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5920] write(3, "1000", 4 <unfinished ...>
[pid  5834] umount2("./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5920] <... write resumed>)        = 4
[pid  5834] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5920] close(3 <unfinished ...>
[pid  5834] openat(AT_FDCWD, "./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid  5834] newfstatat(4, "", {st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5834] getdents64(4,  <unfinished ...>
[pid  5920] <... close resumed>)        = 0
[pid  5834] <... getdents64 resumed>0x555557cdd730 /* 2 entries */, 32768) = 48
[pid  5920] symlink("/dev/binderfs", "./binderfs" <unfinished ...>
[pid  5834] getdents64(4, executing program
 <unfinished ...>
[pid  5920] <... symlink resumed>)      = 0
[pid  5834] <... getdents64 resumed>0x555557cdd730 /* 0 entries */, 32768) = 0
[pid  5920] write(1, "executing program\n", 18 <unfinished ...>
[pid  5834] close(4 <unfinished ...>
[pid  5920] <... write resumed>)        = 18
[pid  5834] <... close resumed>)        = 0
[pid  5920] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5834] rmdir("./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" <unfinished ...>
[pid  5920] <... memfd_create resumed>) = 3
[pid  5920] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5834] <... rmdir resumed>)        = 0
[pid  5920] <... mmap resumed>)         = 0x7ffa86000000
[pid  5834] getdents64(3, 0x555557cd56f0 /* 0 entries */, 32768) = 0
[pid  5834] close(3)                    = 0
[pid  5834] rmdir("./1")                = 0
[   66.149453][ T5835] bcachefs (loop4): shutting down
[   66.162185][ T5835] bcachefs (loop4): going read-only
[   66.179318][ T5835] bcachefs (loop4): finished waiting for writes to stop
[pid  5834] mkdir("./2", 0777)          = 0
[pid  5834] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  5834] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[   66.204133][ T5835] bcachefs (loop4): flushing journal and stopping allocators, journal seq 3339
[pid  5834] close(3)                    = 0
[pid  5834] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5922 attached
, child_tidptr=0x555557cd4650) = 5922
[pid  5922] set_robust_list(0x555557cd4660, 24) = 0
[pid  5922] chdir("./2")                = 0
[pid  5922] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5922] setpgid(0, 0)               = 0
[pid  5922] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5922] write(3, "1000", 4)         = 4
[pid  5922] close(3)                    = 0
[pid  5922] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid  5922] write(1, "executing program\n", 18) = 18
[pid  5922] memfd_create("syzkaller", 0) = 3
[pid  5917] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...>
[pid  5922] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ffa86000000
[   66.299993][   T11] bcachefs (loop4): bch2_write_super(): fatal error  loop4: Superblock write was silently dropped! (seq 0 expected 53)
[   66.354628][   T11] bcachefs (loop4): fatal error - emergency read only
[   66.364700][ T5835] bcachefs (loop4): flushing journal and stopping allocators complete, journal seq 3342
[   66.394927][ T5835] bcachefs (loop4): unshutdown complete, journal seq 3342
[   66.435659][ T5835] bcachefs (loop4): done going read-only, filesystem not clean
[pid  5916] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...>
[   66.512501][ T5835] bcachefs (loop4): shutdown complete
[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"..., 16777216 <unfinished ...>
[pid  5922] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...>
[pid  5917] <... write resumed>)        = 16777216
[pid  5917] munmap(0x7ffa86000000, 138412032 <unfinished ...>
[pid  5916] <... write resumed>)        = 16777216
[pid  5916] munmap(0x7ffa86000000, 138412032 <unfinished ...>
[pid  5917] <... munmap resumed>)       = 0
[pid  5917] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5917] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  5917] close(3 <unfinished ...>
[pid  5916] <... munmap resumed>)       = 0
[pid  5917] <... close resumed>)        = 0
[pid  5917] close(4 <unfinished ...>
[pid  5916] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4
[pid  5916] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid  5917] <... close resumed>)        = 0
[pid  5917] mkdir("./file0", 0777 <unfinished ...>
[pid  5916] <... ioctl resumed>)        = 0
[pid  5916] close(3)                    = 0
[pid  5916] close(4 <unfinished ...>
[pid  5917] <... mkdir resumed>)        = 0
[pid  5916] <... close resumed>)        = 0
[pid  5917] mount("/dev/loop0", "./file0", "bcachefs", MS_POSIXACL, "\x62\x61\x63\x6b\x67\x72\x6f\x75\x6e\xfd\xff\x63\x6f\x6d\x70\x72\x65\x33\x73\x69\x6f\x6e\x3d\x6c\x7a\x34\x2c\x72\x65\x63\x6f\x6e\x73\x74\x72\x75\x63\x74\x5f\x61\x6c\x6c\x6f\x63\x2c\x6e\x6f\x63\x6f\x77\x2c\x6e\x6f\x65\x78\x63\x6c\x2c\x62\x74\x72\x65\x65\x5f\x6e\x6f\x64\x65\x5f\x70\x72\x65\x66\x65\x74\x63\x68\x2c\x6e\x6f\x72\x65\x63\x6f\x76\x65\x72\x79\x2c\x73\x68\x61\x72\x64\x5f\x69\x6e\x6f\x64\x65"... <unfinished ...>
[pid  5916] mkdir("./file0", 0777)      = 0
[   66.696801][ T5917] loop0: detected capacity change from 0 to 32768
[   66.719689][ T5916] loop1: detected capacity change from 0 to 32768
[pid  5916] mount("/dev/loop1", "./file0", "bcachefs", MS_POSIXACL, "\x62\x61\x63\x6b\x67\x72\x6f\x75\x6e\xfd\xff\x63\x6f\x6d\x70\x72\x65\x33\x73\x69\x6f\x6e\x3d\x6c\x7a\x34\x2c\x72\x65\x63\x6f\x6e\x73\x74\x72\x75\x63\x74\x5f\x61\x6c\x6c\x6f\x63\x2c\x6e\x6f\x63\x6f\x77\x2c\x6e\x6f\x65\x78\x63\x6c\x2c\x62\x74\x72\x65\x65\x5f\x6e\x6f\x64\x65\x5f\x70\x72\x65\x66\x65\x74\x63\x68\x2c\x6e\x6f\x72\x65\x63\x6f\x76\x65\x72\x79\x2c\x73\x68\x61\x72\x64\x5f\x69\x6e\x6f\x64\x65"... <unfinished ...>
[pid  5922] <... write resumed>)        = 16777216
[pid  5922] munmap(0x7ffa86000000, 138412032) = 0
[pid  5922] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4
[pid  5922] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  5922] close(3)                    = 0
[pid  5922] close(4)                    = 0
[pid  5920] <... write resumed>)        = 16777216
[pid  5922] mkdir("./file0", 0777)      = 0
[pid  5920] munmap(0x7ffa86000000, 138412032 <unfinished ...>
[pid  5922] mount("/dev/loop3", "./file0", "bcachefs", MS_POSIXACL, "\x62\x61\x63\x6b\x67\x72\x6f\x75\x6e\xfd\xff\x63\x6f\x6d\x70\x72\x65\x33\x73\x69\x6f\x6e\x3d\x6c\x7a\x34\x2c\x72\x65\x63\x6f\x6e\x73\x74\x72\x75\x63\x74\x5f\x61\x6c\x6c\x6f\x63\x2c\x6e\x6f\x63\x6f\x77\x2c\x6e\x6f\x65\x78\x63\x6c\x2c\x62\x74\x72\x65\x65\x5f\x6e\x6f\x64\x65\x5f\x70\x72\x65\x66\x65\x74\x63\x68\x2c\x6e\x6f\x72\x65\x63\x6f\x76\x65\x72\x79\x2c\x73\x68\x61\x72\x64\x5f\x69\x6e\x6f\x64\x65"... <unfinished ...>
[pid  5920] <... munmap resumed>)       = 0
[pid  5920] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4
[pid  5920] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  5920] close(3)                    = 0
[pid  5920] close(4)                    = 0
[pid  5920] mkdir("./file0", 0777)      = 0
[   66.854500][ T5922] loop3: detected capacity change from 0 to 32768
[   66.891377][ T5920] loop2: detected capacity change from 0 to 32768
[   67.282842][ T5917] bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=none,compression=lz4,fix_errors=ask,norecovery,nojournal_transaction_names,noexcl,reconstruct_alloc,nocow,no_data_io
[   67.285384][ T5916] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open
[   67.304579][ T5917] bcachefs (loop0): recovering from clean shutdown, journal seq 3338
[   67.321249][ T5917] bcachefs (loop0): Version upgrade required:
[   67.321249][ T5917] Version upgrade from 0.24: unwritten_extents to 1.7: mi_btree_bitmap incomplete
[   67.321249][ T5917] Doing incompatible version upgrade from 0.24: unwritten_extents to 1.13: inode_has_child_snapshots
[   67.321249][ T5917]   running recovery passes: check_allocations,check_alloc_info,check_lrus,check_btree_backpointers,check_backpointers_to_extents,check_extents_to_backpointers,check_alloc_to_lru_refs,bucket_gens_init,check_snapshot_trees,check_snapshots,check_subvols,check_subvol_children,delete_dead_snapshots,check_inodes,check_extents,check_indirect_extents,check_dirents,check_xattrs,check_root,check_unreachable_inodes,check_subvolume_structure,check_directory_structure,check_nlinks,set_fs_needs_rebalance
[   67.341786][ T5916] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete
[   67.394722][ T5922] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open
[   67.424229][ T5922] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete
[   67.433698][ T5917] bcachefs (loop0): dropping and reconstructing all alloc info
[   67.441480][ T5920] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open
[   67.478193][ T5920] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete
[pid  5920] mount("/dev/loop2", "./file0", "bcachefs", MS_POSIXACL, "\x62\x61\x63\x6b\x67\x72\x6f\x75\x6e\xfd\xff\x63\x6f\x6d\x70\x72\x65\x33\x73\x69\x6f\x6e\x3d\x6c\x7a\x34\x2c\x72\x65\x63\x6f\x6e\x73\x74\x72\x75\x63\x74\x5f\x61\x6c\x6c\x6f\x63\x2c\x6e\x6f\x63\x6f\x77\x2c\x6e\x6f\x65\x78\x63\x6c\x2c\x62\x74\x72\x65\x65\x5f\x6e\x6f\x64\x65\x5f\x70\x72\x65\x66\x65\x74\x63\x68\x2c\x6e\x6f\x72\x65\x63\x6f\x76\x65\x72\x79\x2c\x73\x68\x61\x72\x64\x5f\x69\x6e\x6f\x64\x65"... <unfinished ...>
[pid  5835] <... umount2 resumed>)      = 0
[pid  5916] <... mount resumed>)        = -1 EINVAL (Invalid argument)
[pid  5835] umount2("./1/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5916] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  5835] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[   67.527257][ T5917] bcachefs (loop0): accounting_read... done
[   67.541328][ T5917] bcachefs (loop0): alloc_read... done
[   67.555184][ T5917] bcachefs (loop0): stripes_read... done
[   67.555677][ T5916] bcachefs: bch2_fs_get_tree() error: EINVAL
[   67.560904][ T5917] bcachefs (loop0): snapshots_read... done
[pid  5916] <... openat resumed>)       = 3
[pid  5835] newfstatat(AT_FDCWD, "./1/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5916] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5835] umount2("./1/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5916] close(3 <unfinished ...>
[pid  5835] openat(AT_FDCWD, "./1/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid  5835] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5835] getdents64(4, 0x555557cdd730 /* 2 entries */, 32768) = 48
[pid  5835] getdents64(4, 0x555557cdd730 /* 0 entries */, 32768) = 0
[pid  5835] close(4)                    = 0
[pid  5835] rmdir("./1/file0")          = 0
[pid  5835] getdents64(3, 0x555557cd56f0 /* 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/loop4", O_RDWR) = 3
[pid  5835] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  5835] close(3)                    = 0
[pid  5835] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5952 attached
 <unfinished ...>
[pid  5952] set_robust_list(0x555557cd4660, 24) = 0
[pid  5835] <... clone resumed>, child_tidptr=0x555557cd4650) = 5952
[pid  5952] chdir("./2")                = 0
[pid  5952] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5952] setpgid(0, 0)               = 0
[pid  5952] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5952] write(3, "1000", 4)         = 4
[pid  5952] close(3)                    = 0
[pid  5952] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5952] write(1, "executing program\n", 18executing program
) = 18
[pid  5920] <... mount resumed>)        = -1 EINVAL (Invalid argument)
[pid  5952] memfd_create("syzkaller", 0) = 3
[pid  5920] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  5952] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5920] <... openat resumed>)       = 3
[pid  5952] <... mmap resumed>)         = 0x7ffa86000000
[pid  5920] ioctl(3, LOOP_CLR_FD)       = 0
[   67.591036][ T5917] bcachefs (loop0): check_allocations... done
[   67.699574][ T5920] bcachefs: bch2_fs_get_tree() error: EINVAL
[   67.715238][ T5917] bcachefs (loop0): going read-write
[pid  5920] close(3 <unfinished ...>
[pid  5922] <... mount resumed>)        = -1 EINVAL (Invalid argument)
[pid  5922] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  5922] ioctl(3, LOOP_CLR_FD)       = 0
[   67.752954][ T5922] bcachefs: bch2_fs_get_tree() error: EINVAL
[pid  5922] close(3 <unfinished ...>
[pid  5917] <... mount resumed>)        = 0
[pid  5916] <... close resumed>)        = 0
[pid  5916] mkdirat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000) = 0
[pid  5916] exit_group(0)               = ?
[pid  5916] +++ exited with 0 +++
[pid  5832] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5916, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=46 /* 0.46 s */} ---
[pid  5832] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  5832] umount2("./1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5917] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid  5832] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid  5832] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5832] getdents64(3, 0x555557cd56f0 /* 5 entries */, 32768) = 384
[pid  5832] umount2("./1/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5832] newfstatat(AT_FDCWD, "./1/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5832] unlink("./1/binderfs")      = 0
[pid  5832] umount2("./1/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5832] newfstatat(AT_FDCWD, "./1/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5917] <... openat resumed>)       = 3
[pid  5832] umount2("./1/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5832] openat(AT_FDCWD, "./1/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid  5832] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5832] getdents64(4,  <unfinished ...>
[pid  5917] chdir("./file0" <unfinished ...>
[pid  5832] <... getdents64 resumed>0x555557cdd730 /* 2 entries */, 32768) = 48
[pid  5832] getdents64(4, 0x555557cdd730 /* 0 entries */, 32768) = 0
[pid  5917] <... chdir resumed>)        = 0
[   67.806843][ T5917] bcachefs (loop0): done starting filesystem
[pid  5832] close(4)                    = 0
[pid  5832] rmdir("./1/file0")          = 0
[pid  5832] umount2("./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5832] newfstatat(AT_FDCWD, "./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", {st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5832] umount2("./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5832] openat(AT_FDCWD, "./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid  5917] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  5832] <... openat resumed>)       = 4
[pid  5917] <... openat resumed>)       = 4
[pid  5832] newfstatat(4, "", {st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5832] getdents64(4, 0x555557cdd730 /* 2 entries */, 32768) = 48
[pid  5832] getdents64(4, 0x555557cdd730 /* 0 entries */, 32768) = 0
[pid  5832] close(4)                    = 0
[pid  5832] rmdir("./1/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0
[pid  5832] getdents64(3, 0x555557cd56f0 /* 0 entries */, 32768) = 0
[pid  5832] close(3)                    = 0
[pid  5832] rmdir("./1" <unfinished ...>
[pid  5917] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid  5832] <... rmdir resumed>)        = 0
[pid  5917] <... ioctl resumed>)        = 0
[pid  5832] mkdir("./2", 0777 <unfinished ...>
[pid  5917] close(4)                    = 0
[pid  5832] <... mkdir resumed>)        = 0
[pid  5917] mkdirat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 <unfinished ...>
[pid  5832] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  5832] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  5832] close(3)                    = 0
[pid  5832] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5955 attached
, child_tidptr=0x555557cd4650) = 5955
[pid  5955] set_robust_list(0x555557cd4660, 24 <unfinished ...>
[pid  5917] <... mkdirat resumed>)      = 0
[pid  5955] <... set_robust_list resumed>) = 0
[pid  5955] chdir("./2" <unfinished ...>
[pid  5917] exit_group(0)               = ?
[pid  5955] <... chdir resumed>)        = 0
[pid  5955] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5955] setpgid(0, 0)               = 0
[pid  5917] +++ exited with 0 +++
[pid  5831] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5917, si_uid=0, si_status=0, si_utime=13 /* 0.13 s */, si_stime=34 /* 0.34 s */} ---
[pid  5831] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  5955] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5831] umount2("./2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5831] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid  5955] write(3, "1000", 4 <unfinished ...>
[pid  5831] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5955] <... write resumed>)        = 4
[pid  5955] close(3 <unfinished ...>
[pid  5831] getdents64(3,  <unfinished ...>
[pid  5955] <... close resumed>)        = 0
[pid  5831] <... getdents64 resumed>0x555557cd56f0 /* 4 entries */, 32768) = 112
[pid  5955] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5831] umount2("./2/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5831] newfstatat(AT_FDCWD, "./2/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5831] unlink("./2/binderfs" <unfinished ...>
[pid  5955] write(1, "executing program\n", 18 <unfinished ...>
[pid  5831] <... unlink resumed>)       = 0
[pid  5831] umount2("./2/file0", MNT_FORCE|UMOUNT_NOFOLLOWexecuting program
 <unfinished ...>
[pid  5955] <... write resumed>)        = 18
[pid  5955] memfd_create("syzkaller", 0) = 3
[pid  5955] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ffa86000000
[pid  5922] <... close resumed>)        = 0
[   68.015491][ T5831] bcachefs (loop0): shutting down
[   68.020665][ T5831] bcachefs (loop0): going read-only
[   68.049213][ T5831] bcachefs (loop0): finished waiting for writes to stop
[pid  5922] mkdirat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 <unfinished ...>
[pid  5920] <... close resumed>)        = 0
[pid  5920] mkdirat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 <unfinished ...>
[pid  5952] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...>
[pid  5920] <... mkdirat resumed>)      = 0
[pid  5920] exit_group(0 <unfinished ...>
[pid  5922] <... mkdirat resumed>)      = 0
[pid  5922] exit_group(0)               = ?
[pid  5922] +++ exited with 0 +++
[pid  5834] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5922, si_uid=0, si_status=0, si_utime=8 /* 0.08 s */, si_stime=33 /* 0.33 s */} ---
[pid  5834] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  5834] umount2("./2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5834] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid  5834] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5834] getdents64(3, 0x555557cd56f0 /* 5 entries */, 32768) = 384
[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  5834] unlink("./2/binderfs")      = 0
[pid  5834] umount2("./2/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5920] <... exit_group resumed>)   = ?
[pid  5834] newfstatat(AT_FDCWD, "./2/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5834] umount2("./2/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5834] openat(AT_FDCWD, "./2/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid  5920] +++ exited with 0 +++
[pid  5834] <... openat resumed>)       = 4
[pid  5834] newfstatat(4, "",  <unfinished ...>
[pid  5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5920, si_uid=0, si_status=0, si_utime=11 /* 0.11 s */, si_stime=45 /* 0.45 s */} ---
[pid  5834] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5833] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  5834] getdents64(4, 0x555557cdd730 /* 2 entries */, 32768) = 48
[pid  5833] <... restart_syscall resumed>) = 0
[pid  5834] getdents64(4, 0x555557cdd730 /* 0 entries */, 32768) = 0
[pid  5834] close(4 <unfinished ...>
[pid  5833] umount2("./2", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5834] <... close resumed>)        = 0
[pid  5833] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5834] rmdir("./2/file0" <unfinished ...>
[pid  5833] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid  5834] <... rmdir resumed>)        = 0
[pid  5833] <... openat resumed>)       = 3
[pid  5834] umount2("./2/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5833] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5833] getdents64(3, 0x555557cd56f0 /* 5 entries */, 32768) = 384
[pid  5833] umount2("./2/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5834] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5833] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5834] newfstatat(AT_FDCWD, "./2/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",  <unfinished ...>
[pid  5833] newfstatat(AT_FDCWD, "./2/binderfs",  <unfinished ...>
[pid  5834] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5834] umount2("./2/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5833] unlink("./2/binderfs" <unfinished ...>
[pid  5834] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5833] <... unlink resumed>)       = 0
[pid  5834] openat(AT_FDCWD, "./2/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid  5833] umount2("./2/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5834] <... openat resumed>)       = 4
[pid  5833] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5834] newfstatat(4, "",  <unfinished ...>
[pid  5833] newfstatat(AT_FDCWD, "./2/file0",  <unfinished ...>
[pid  5834] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5833] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5834] getdents64(4,  <unfinished ...>
[pid  5833] umount2("./2/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5834] <... getdents64 resumed>0x555557cdd730 /* 2 entries */, 32768) = 48
[pid  5833] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5834] getdents64(4,  <unfinished ...>
[pid  5833] openat(AT_FDCWD, "./2/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid  5834] <... getdents64 resumed>0x555557cdd730 /* 0 entries */, 32768) = 0
[pid  5833] <... openat resumed>)       = 4
[pid  5834] close(4 <unfinished ...>
[pid  5833] newfstatat(4, "",  <unfinished ...>
[   68.085066][ T5831] bcachefs (loop0): flushing journal and stopping allocators, journal seq 3340
[pid  5834] <... close resumed>)        = 0
[pid  5833] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5834] rmdir("./2/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" <unfinished ...>
[pid  5833] getdents64(4,  <unfinished ...>
[pid  5834] <... rmdir resumed>)        = 0
[pid  5833] <... getdents64 resumed>0x555557cdd730 /* 2 entries */, 32768) = 48
[pid  5834] getdents64(3,  <unfinished ...>
[pid  5833] getdents64(4,  <unfinished ...>
[pid  5834] <... getdents64 resumed>0x555557cd56f0 /* 0 entries */, 32768) = 0
[pid  5833] <... getdents64 resumed>0x555557cdd730 /* 0 entries */, 32768) = 0
[pid  5834] close(3 <unfinished ...>
[pid  5833] close(4 <unfinished ...>
[pid  5834] <... close resumed>)        = 0
[pid  5833] <... close resumed>)        = 0
[pid  5834] rmdir("./2" <unfinished ...>
[pid  5833] rmdir("./2/file0" <unfinished ...>
[pid  5834] <... rmdir resumed>)        = 0
[pid  5833] <... rmdir resumed>)        = 0
[pid  5834] mkdir("./3", 0777 <unfinished ...>
[pid  5833] umount2("./2/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5834] <... mkdir resumed>)        = 0
[pid  5833] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./2/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",  <unfinished ...>
[pid  5834] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  5833] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] umount2("./2/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5834] <... openat resumed>)       = 3
[pid  5833] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5833] openat(AT_FDCWD, "./2/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid  5834] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5833] <... openat resumed>)       = 4
[pid  5834] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  5833] newfstatat(4, "", {st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5834] close(3)                    = 0
[pid  5833] getdents64(4, 0x555557cdd730 /* 2 entries */, 32768) = 48
[pid  5834] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5833] getdents64(4,  <unfinished ...>
[pid  5834] <... clone resumed>, child_tidptr=0x555557cd4650) = 5956
./strace-static-x86_64: Process 5956 attached
[pid  5956] set_robust_list(0x555557cd4660, 24 <unfinished ...>
[pid  5833] <... getdents64 resumed>0x555557cdd730 /* 0 entries */, 32768) = 0
[pid  5956] <... set_robust_list resumed>) = 0
[pid  5956] chdir("./3" <unfinished ...>
[pid  5833] close(4 <unfinished ...>
[pid  5956] <... chdir resumed>)        = 0
[pid  5833] <... close resumed>)        = 0
[pid  5956] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5956] setpgid(0, 0)               = 0
[pid  5956] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5833] rmdir("./2/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" <unfinished ...>
[pid  5956] write(3, "1000", 4 <unfinished ...>
[pid  5833] <... rmdir resumed>)        = 0
[pid  5956] <... write resumed>)        = 4
[pid  5956] close(3)                    = 0
[pid  5833] getdents64(3,  <unfinished ...>
[pid  5956] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid  5833] <... getdents64 resumed>0x555557cd56f0 /* 0 entries */, 32768) = 0
[pid  5956] write(1, "executing program\n", 18 <unfinished ...>
[pid  5833] close(3 <unfinished ...>
[pid  5956] <... write resumed>)        = 18
[pid  5833] <... close resumed>)        = 0
[pid  5956] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5833] rmdir("./2" <unfinished ...>
[pid  5956] <... memfd_create resumed>) = 3
[pid  5833] <... rmdir resumed>)        = 0
[pid  5833] mkdir("./3", 0777 <unfinished ...>
[pid  5956] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ffa86000000
[pid  5833] <... mkdir resumed>)        = 0
[   68.167949][ T3613] bcachefs (loop0): bch2_write_super(): fatal error  loop0: Superblock write was silently dropped! (seq 0 expected 53)
[pid  5833] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  5833] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  5833] close(3)                    = 0
[pid  5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555557cd4650) = 5957
./strace-static-x86_64: Process 5957 attached
[pid  5957] set_robust_list(0x555557cd4660, 24) = 0
[pid  5957] chdir("./3")                = 0
[pid  5957] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5957] setpgid(0, 0)               = 0
[   68.215633][ T3613] bcachefs (loop0): fatal error - emergency read only
[   68.237894][ T5831] bcachefs (loop0): flushing journal and stopping allocators complete, journal seq 3341
[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
[   68.263274][ T5831] bcachefs (loop0): unshutdown complete, journal seq 3341
[pid  5957] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid  5957] write(1, "executing program\n", 18) = 18
[pid  5957] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5952] <... write resumed>)        = 16777216
[pid  5957] <... memfd_create resumed>) = 3
[pid  5957] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5952] munmap(0x7ffa86000000, 138412032 <unfinished ...>
[pid  5957] <... mmap resumed>)         = 0x7ffa86000000
[   68.295261][ T5831] bcachefs (loop0): done going read-only, filesystem not clean
[pid  5955] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...>
[pid  5952] <... munmap resumed>)       = 0
[pid  5952] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4
[pid  5952] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  5952] close(3)                    = 0
[pid  5952] close(4)                    = 0
[pid  5952] mkdir("./file0", 0777)      = 0
[   68.347573][ T5831] bcachefs (loop0): shutdown complete
[   68.385382][ T5952] loop4: detected capacity change from 0 to 32768
[pid  5952] mount("/dev/loop4", "./file0", "bcachefs", MS_POSIXACL, "\x62\x61\x63\x6b\x67\x72\x6f\x75\x6e\xfd\xff\x63\x6f\x6d\x70\x72\x65\x33\x73\x69\x6f\x6e\x3d\x6c\x7a\x34\x2c\x72\x65\x63\x6f\x6e\x73\x74\x72\x75\x63\x74\x5f\x61\x6c\x6c\x6f\x63\x2c\x6e\x6f\x63\x6f\x77\x2c\x6e\x6f\x65\x78\x63\x6c\x2c\x62\x74\x72\x65\x65\x5f\x6e\x6f\x64\x65\x5f\x70\x72\x65\x66\x65\x74\x63\x68\x2c\x6e\x6f\x72\x65\x63\x6f\x76\x65\x72\x79\x2c\x73\x68\x61\x72\x64\x5f\x69\x6e\x6f\x64\x65"... <unfinished ...>
[pid  5957] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...>
[pid  5956] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...>
[pid  5955] <... write resumed>)        = 16777216
[pid  5955] munmap(0x7ffa86000000, 138412032 <unfinished ...>
[pid  5957] <... write resumed>)        = 16777216
[pid  5955] <... munmap resumed>)       = 0
[pid  5955] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  5957] munmap(0x7ffa86000000, 138412032 <unfinished ...>
[pid  5955] <... openat resumed>)       = 4
[pid  5955] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid  5957] <... munmap resumed>)       = 0
[pid  5955] <... ioctl resumed>)        = 0
[pid  5957] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  5955] close(3 <unfinished ...>
[pid  5957] <... openat resumed>)       = 4
[pid  5955] <... close resumed>)        = 0
[pid  5955] close(4)                    = 0
[pid  5955] mkdir("./file0", 0777)      = 0
[pid  5957] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid  5955] mount("/dev/loop1", "./file0", "bcachefs", MS_POSIXACL, "\x62\x61\x63\x6b\x67\x72\x6f\x75\x6e\xfd\xff\x63\x6f\x6d\x70\x72\x65\x33\x73\x69\x6f\x6e\x3d\x6c\x7a\x34\x2c\x72\x65\x63\x6f\x6e\x73\x74\x72\x75\x63\x74\x5f\x61\x6c\x6c\x6f\x63\x2c\x6e\x6f\x63\x6f\x77\x2c\x6e\x6f\x65\x78\x63\x6c\x2c\x62\x74\x72\x65\x65\x5f\x6e\x6f\x64\x65\x5f\x70\x72\x65\x66\x65\x74\x63\x68\x2c\x6e\x6f\x72\x65\x63\x6f\x76\x65\x72\x79\x2c\x73\x68\x61\x72\x64\x5f\x69\x6e\x6f\x64\x65"... <unfinished ...>
[pid  5956] <... write resumed>)        = 16777216
[pid  5956] munmap(0x7ffa86000000, 138412032) = 0
[pid  5957] <... ioctl resumed>)        = 0
[pid  5956] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  5957] close(3 <unfinished ...>
[pid  5956] <... openat resumed>)       = 4
[   68.735329][ T5955] loop1: detected capacity change from 0 to 32768
[   68.775309][ T5957] loop2: detected capacity change from 0 to 32768
[pid  5956] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid  5957] <... close resumed>)        = 0
[pid  5956] <... ioctl resumed>)        = 0
[pid  5956] close(3 <unfinished ...>
[pid  5957] close(4 <unfinished ...>
[pid  5956] <... close resumed>)        = 0
[pid  5957] <... close resumed>)        = 0
[pid  5957] mkdir("./file0", 0777 <unfinished ...>
[pid  5956] close(4 <unfinished ...>
[pid  5957] <... mkdir resumed>)        = 0
[pid  5956] <... close resumed>)        = 0
[pid  5956] mkdir("./file0", 0777 <unfinished ...>
[pid  5957] mount("/dev/loop2", "./file0", "bcachefs", MS_POSIXACL, "\x62\x61\x63\x6b\x67\x72\x6f\x75\x6e\xfd\xff\x63\x6f\x6d\x70\x72\x65\x33\x73\x69\x6f\x6e\x3d\x6c\x7a\x34\x2c\x72\x65\x63\x6f\x6e\x73\x74\x72\x75\x63\x74\x5f\x61\x6c\x6c\x6f\x63\x2c\x6e\x6f\x63\x6f\x77\x2c\x6e\x6f\x65\x78\x63\x6c\x2c\x62\x74\x72\x65\x65\x5f\x6e\x6f\x64\x65\x5f\x70\x72\x65\x66\x65\x74\x63\x68\x2c\x6e\x6f\x72\x65\x63\x6f\x76\x65\x72\x79\x2c\x73\x68\x61\x72\x64\x5f\x69\x6e\x6f\x64\x65"... <unfinished ...>
[pid  5956] <... mkdir resumed>)        = 0
[   68.808625][ T5956] loop3: detected capacity change from 0 to 32768
[   69.094818][ T5952] bcachefs (loop4): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=none,compression=lz4,fix_errors=ask,norecovery,nojournal_transaction_names,noexcl,reconstruct_alloc,nocow,no_data_io
[   69.098562][ T5957] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open
[   69.116009][ T5952] bcachefs (loop4): recovering from clean shutdown, journal seq 3338
[   69.116165][ T5952] bcachefs (loop4): Version upgrade required:
[   69.116165][ T5952] Version upgrade from 0.24: unwritten_extents to 1.7: mi_btree_bitmap incomplete
[   69.116165][ T5952] Doing incompatible version upgrade from 0.24: unwritten_extents to 1.13: inode_has_child_snapshots
[   69.116165][ T5952]   running recovery passes: check_allocations,check_alloc_info,check_lrus,check_btree_backpointers,check_backpointers_to_extents,check_extents_to_backpointers,check_alloc_to_lru_refs,bucket_gens_init,check_snapshot_trees,check_snapshots,check_subvols,check_subvol_children,delete_dead_snapshots,check_inodes,check_extents,check_indirect_extents,check_dirents,check_xattrs,check_root,check_unreachable_inodes,check_subvolume_structure,check_directory_structure,check_nlinks,set_fs_needs_rebalance
[   69.117924][ T5952] bcachefs (loop4): dropping and reconstructing all alloc info
[   69.136746][ T5955] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open
[   69.222324][ T5955] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete
[   69.230554][ T5957] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete
[   69.243143][ T5956] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open
[   69.256872][ T5956] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete
[pid  5956] mount("/dev/loop3", "./file0", "bcachefs", MS_POSIXACL, "\x62\x61\x63\x6b\x67\x72\x6f\x75\x6e\xfd\xff\x63\x6f\x6d\x70\x72\x65\x33\x73\x69\x6f\x6e\x3d\x6c\x7a\x34\x2c\x72\x65\x63\x6f\x6e\x73\x74\x72\x75\x63\x74\x5f\x61\x6c\x6c\x6f\x63\x2c\x6e\x6f\x63\x6f\x77\x2c\x6e\x6f\x65\x78\x63\x6c\x2c\x62\x74\x72\x65\x65\x5f\x6e\x6f\x64\x65\x5f\x70\x72\x65\x66\x65\x74\x63\x68\x2c\x6e\x6f\x72\x65\x63\x6f\x76\x65\x72\x79\x2c\x73\x68\x61\x72\x64\x5f\x69\x6e\x6f\x64\x65"... <unfinished ...>
[pid  5957] <... mount resumed>)        = -1 EINVAL (Invalid argument)
[pid  5957] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  5957] ioctl(3, LOOP_CLR_FD)       = 0
[   69.364903][ T5957] bcachefs: bch2_fs_get_tree() error: EINVAL
[   69.373995][ T5952] bcachefs (loop4): accounting_read... done
[   69.401510][ T5952] bcachefs (loop4): alloc_read... done
[pid  5957] close(3 <unfinished ...>
[pid  5955] <... mount resumed>)        = -1 EINVAL (Invalid argument)
[pid  5956] <... mount resumed>)        = -1 EINVAL (Invalid argument)
[pid  5955] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  5955] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5955] close(3 <unfinished ...>
[pid  5956] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  5956] ioctl(3, LOOP_CLR_FD)       = 0
[   69.422222][ T5955] bcachefs: bch2_fs_get_tree() error: EINVAL
[   69.432822][ T5952] bcachefs (loop4): stripes_read... done
[   69.449489][ T5952] bcachefs (loop4): snapshots_read... done
[   69.456292][ T5956] bcachefs: bch2_fs_get_tree() error: EINVAL
[pid  5956] close(3 <unfinished ...>
[pid  5952] <... mount resumed>)        = 0
[   69.484348][ T5952] bcachefs (loop4): check_allocations... done
[   69.595906][ T5952] bcachefs (loop4): going read-write
[   69.615051][ T5952] bcachefs (loop4): done starting filesystem
[pid  5952] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid  5956] <... close resumed>)        = 0
[pid  5952] <... openat resumed>)       = 3
[pid  5952] chdir("./file0")            = 0
[pid  5952] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4
[pid  5952] ioctl(4, LOOP_CLR_FD)       = 0
[pid  5952] close(4)                    = 0
[pid  5952] mkdirat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 <unfinished ...>
[pid  5956] mkdirat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000) = 0
[pid  5956] exit_group(0)               = ?
[pid  5956] +++ exited with 0 +++
[pid  5834] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5956, si_uid=0, si_status=0, si_utime=7 /* 0.07 s */, si_stime=36 /* 0.36 s */} ---
[pid  5834] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  5952] <... mkdirat resumed>)      = 0
[pid  5834] <... restart_syscall resumed>) = 0
[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  5952] exit_group(0 <unfinished ...>
[pid  5834] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5834] getdents64(3, 0x555557cd56f0 /* 5 entries */, 32768) = 384
[pid  5952] <... exit_group resumed>)   = ?
[pid  5834] umount2("./3/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5834] newfstatat(AT_FDCWD, "./3/binderfs",  <unfinished ...>
[pid  5952] +++ exited with 0 +++
[pid  5834] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5834] unlink("./3/binderfs" <unfinished ...>
[pid  5835] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5952, si_uid=0, si_status=0, si_utime=7 /* 0.07 s */, si_stime=31 /* 0.31 s */} ---
[pid  5834] <... unlink resumed>)       = 0
[pid  5835] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  5834] umount2("./3/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5835] <... restart_syscall resumed>) = 0
[pid  5834] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5834] newfstatat(AT_FDCWD, "./3/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5835] umount2("./2", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5834] umount2("./3/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5955] <... close resumed>)        = 0
[pid  5835] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5835] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid  5834] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5835] <... openat resumed>)       = 3
[pid  5834] openat(AT_FDCWD, "./3/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid  5835] newfstatat(3, "",  <unfinished ...>
[pid  5834] <... openat resumed>)       = 4
[pid  5835] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5834] newfstatat(4, "",  <unfinished ...>
[pid  5835] getdents64(3,  <unfinished ...>
[pid  5834] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5835] <... getdents64 resumed>0x555557cd56f0 /* 4 entries */, 32768) = 112
[pid  5834] getdents64(4, 0x555557cdd730 /* 2 entries */, 32768) = 48
[pid  5834] getdents64(4, 0x555557cdd730 /* 0 entries */, 32768) = 0
[pid  5834] close(4)                    = 0
[pid  5834] rmdir("./3/file0")          = 0
[pid  5834] umount2("./3/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5835] umount2("./2/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5834] newfstatat(AT_FDCWD, "./3/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", {st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5835] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5835] newfstatat(AT_FDCWD, "./2/binderfs",  <unfinished ...>
[pid  5834] umount2("./3/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5835] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5834] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5835] unlink("./2/binderfs" <unfinished ...>
[pid  5834] openat(AT_FDCWD, "./3/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid  5835] <... unlink resumed>)       = 0
[pid  5834] <... openat resumed>)       = 4
[pid  5835] umount2("./2/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5834] newfstatat(4, "", {st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5834] getdents64(4,  <unfinished ...>
[pid  5955] mkdirat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 <unfinished ...>
[pid  5834] <... getdents64 resumed>0x555557cdd730 /* 2 entries */, 32768) = 48
[pid  5831] <... umount2 resumed>)      = 0
[pid  5834] getdents64(4, 0x555557cdd730 /* 0 entries */, 32768) = 0
[pid  5955] <... mkdirat resumed>)      = 0
[pid  5834] close(4 <unfinished ...>
[pid  5831] umount2("./2/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5834] <... close resumed>)        = 0
[pid  5955] exit_group(0)               = ?
[pid  5834] rmdir("./3/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" <unfinished ...>
[pid  5831] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5834] <... rmdir resumed>)        = 0
[pid  5834] getdents64(3, 0x555557cd56f0 /* 0 entries */, 32768) = 0
[pid  5834] close(3)                    = 0
[pid  5834] rmdir("./3" <unfinished ...>
[pid  5955] +++ exited with 0 +++
[pid  5834] <... rmdir resumed>)        = 0
[pid  5831] newfstatat(AT_FDCWD, "./2/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5831] umount2("./2/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5831] openat(AT_FDCWD, "./2/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid  5831] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5831] getdents64(4, 0x555557cdd730 /* 2 entries */, 32768) = 48
[pid  5831] getdents64(4, 0x555557cdd730 /* 0 entries */, 32768) = 0
[pid  5831] close(4)                    = 0
[pid  5831] rmdir("./2/file0" <unfinished ...>
[pid  5957] <... close resumed>)        = 0
[pid  5834] mkdir("./4", 0777 <unfinished ...>
[pid  5831] <... rmdir resumed>)        = 0
[pid  5957] mkdirat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 <unfinished ...>
[pid  5831] getdents64(3,  <unfinished ...>
[pid  5957] <... mkdirat resumed>)      = 0
[pid  5834] <... mkdir resumed>)        = 0
[pid  5832] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5955, si_uid=0, si_status=0, si_utime=9 /* 0.09 s */, si_stime=44 /* 0.44 s */} ---
[pid  5831] <... getdents64 resumed>0x555557cd56f0 /* 0 entries */, 32768) = 0
[pid  5957] exit_group(0 <unfinished ...>
[pid  5834] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  5832] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  5831] close(3 <unfinished ...>
[pid  5957] <... exit_group resumed>)   = ?
[pid  5831] <... close resumed>)        = 0
[pid  5957] +++ exited with 0 +++
[pid  5831] rmdir("./2" <unfinished ...>
[pid  5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5957, si_uid=0, si_status=0, si_utime=7 /* 0.07 s */, si_stime=41 /* 0.41 s */} ---
[pid  5831] <... rmdir resumed>)        = 0
[pid  5831] mkdir("./3", 0777 <unfinished ...>
[pid  5834] <... openat resumed>)       = 3
[pid  5832] <... restart_syscall resumed>) = 0
[pid  5831] <... mkdir resumed>)        = 0
[pid  5833] umount2("./3", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5831] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  5833] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5831] <... openat resumed>)       = 3
[pid  5833] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid  5831] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5833] <... openat resumed>)       = 3
[pid  5831] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  5833] newfstatat(3, "",  <unfinished ...>
[pid  5831] close(3 <unfinished ...>
[pid  5834] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5833] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5831] <... close resumed>)        = 0
[pid  5833] getdents64(3,  <unfinished ...>
[pid  5831] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5989 attached
 <unfinished ...>
[pid  5834] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  5833] <... getdents64 resumed>0x555557cd56f0 /* 5 entries */, 32768) = 384
[pid  5834] close(3 <unfinished ...>
[pid  5832] umount2("./2", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5834] <... close resumed>)        = 0
[pid  5832] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5834] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5989] set_robust_list(0x555557cd4660, 24 <unfinished ...>
[pid  5832] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 5990 attached
 <unfinished ...>
[pid  5989] <... set_robust_list resumed>) = 0
[pid  5833] umount2("./3/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5831] <... clone resumed>, child_tidptr=0x555557cd4650) = 5989
[pid  5989] chdir("./3" <unfinished ...>
[pid  5833] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5832] <... openat resumed>)       = 3
[pid  5989] <... chdir resumed>)        = 0
[pid  5833] newfstatat(AT_FDCWD, "./3/binderfs",  <unfinished ...>
[pid  5990] set_robust_list(0x555557cd4660, 24 <unfinished ...>
[   69.729983][ T5835] bcachefs (loop4): shutting down
[   69.741344][ T5835] bcachefs (loop4): going read-only
[   69.754746][ T5835] bcachefs (loop4): finished waiting for writes to stop
[   69.768421][ T5835] bcachefs (loop4): flushing journal and stopping allocators, journal seq 3339
[pid  5989] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5834] <... clone resumed>, child_tidptr=0x555557cd4650) = 5990
[pid  5833] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5832] newfstatat(3, "",  <unfinished ...>
[pid  5990] <... set_robust_list resumed>) = 0
[pid  5990] chdir("./4" <unfinished ...>
[pid  5989] <... prctl resumed>)        = 0
[pid  5833] unlink("./3/binderfs" <unfinished ...>
[pid  5832] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5989] setpgid(0, 0 <unfinished ...>
[pid  5833] <... unlink resumed>)       = 0
[pid  5832] getdents64(3,  <unfinished ...>
[pid  5833] umount2("./3/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5990] <... chdir resumed>)        = 0
[pid  5832] <... getdents64 resumed>0x555557cd56f0 /* 5 entries */, 32768) = 384
[pid  5833] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5990] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5833] newfstatat(AT_FDCWD, "./3/file0",  <unfinished ...>
[pid  5832] umount2("./2/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5989] <... setpgid resumed>)      = 0
[pid  5832] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5989] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5832] newfstatat(AT_FDCWD, "./2/binderfs",  <unfinished ...>
[pid  5833] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5989] <... openat resumed>)       = 3
[pid  5832] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5990] <... prctl resumed>)        = 0
[pid  5833] umount2("./3/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5832] unlink("./2/binderfs" <unfinished ...>
[pid  5990] setpgid(0, 0 <unfinished ...>
[pid  5833] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5990] <... setpgid resumed>)      = 0
[pid  5833] openat(AT_FDCWD, "./3/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid  5832] <... unlink resumed>)       = 0
[pid  5989] write(3, "1000", 4 <unfinished ...>
[pid  5832] umount2("./2/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5990] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5832] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5833] <... openat resumed>)       = 4
[pid  5832] newfstatat(AT_FDCWD, "./2/file0",  <unfinished ...>
[pid  5989] <... write resumed>)        = 4
[pid  5833] newfstatat(4, "",  <unfinished ...>
[pid  5990] <... openat resumed>)       = 3
[pid  5832] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5989] close(3 <unfinished ...>
[pid  5833] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5832] umount2("./2/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5989] <... close resumed>)        = 0
[pid  5833] getdents64(4,  <unfinished ...>
[pid  5832] openat(AT_FDCWD, "./2/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid  5989] symlink("/dev/binderfs", "./binderfs" <unfinished ...>
[pid  5832] <... openat resumed>)       = 4
[pid  5989] <... symlink resumed>)      = 0
[pid  5832] newfstatat(4, "",  <unfinished ...>
[pid  5989] write(1, "executing program\n", 18 <unfinished ...>
[pid  5833] <... getdents64 resumed>0x555557cdd730 /* 2 entries */, 32768) = 48
executing program
[pid  5989] <... write resumed>)        = 18
[pid  5833] getdents64(4,  <unfinished ...>
[pid  5832] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5990] write(3, "1000", 4 <unfinished ...>
[pid  5832] getdents64(4,  <unfinished ...>
[pid  5989] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5833] <... getdents64 resumed>0x555557cdd730 /* 0 entries */, 32768) = 0
[pid  5832] <... getdents64 resumed>0x555557cdd730 /* 2 entries */, 32768) = 48
[pid  5990] <... write resumed>)        = 4
[pid  5989] <... memfd_create resumed>) = 3
[pid  5833] close(4 <unfinished ...>
[pid  5832] getdents64(4,  <unfinished ...>
[pid  5833] <... close resumed>)        = 0
[pid  5990] close(3 <unfinished ...>
[pid  5832] <... getdents64 resumed>0x555557cdd730 /* 0 entries */, 32768) = 0
[pid  5833] rmdir("./3/file0" <unfinished ...>
[pid  5990] <... close resumed>)        = 0
[pid  5832] close(4 <unfinished ...>
[pid  5833] <... rmdir resumed>)        = 0
[pid  5832] <... close resumed>)        = 0
[pid  5833] umount2("./3/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5990] symlink("/dev/binderfs", "./binderfs" <unfinished ...>
[pid  5832] rmdir("./2/file0" <unfinished ...>
[pid  5833] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5990] <... symlink resumed>)      = 0
[pid  5833] newfstatat(AT_FDCWD, "./3/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",  <unfinished ...>
[pid  5989] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5832] <... rmdir resumed>)        = 0
[pid  5833] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5832] umount2("./2/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5989] <... mmap resumed>)         = 0x7ffa86000000
[pid  5832] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5833] umount2("./3/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
executing program
[pid  5990] write(1, "executing program\n", 18 <unfinished ...>
[pid  5833] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5832] newfstatat(AT_FDCWD, "./2/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",  <unfinished ...>
[pid  5990] <... write resumed>)        = 18
[pid  5833] openat(AT_FDCWD, "./3/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid  5832] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5990] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5832] umount2("./2/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5990] <... memfd_create resumed>) = 3
[pid  5990] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5833] newfstatat(4, "",  <unfinished ...>
[pid  5990] <... mmap resumed>)         = 0x7ffa86000000
[pid  5832] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5833] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5832] openat(AT_FDCWD, "./2/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid  5833] getdents64(4,  <unfinished ...>
[pid  5832] <... openat resumed>)       = 4
[pid  5833] <... getdents64 resumed>0x555557cdd730 /* 2 entries */, 32768) = 48
[pid  5833] getdents64(4,  <unfinished ...>
[pid  5832] newfstatat(4, "",  <unfinished ...>
[pid  5833] <... getdents64 resumed>0x555557cdd730 /* 0 entries */, 32768) = 0
[pid  5833] close(4 <unfinished ...>
[pid  5832] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5833] <... close resumed>)        = 0
[pid  5832] getdents64(4, 0x555557cdd730 /* 2 entries */, 32768) = 48
[pid  5832] getdents64(4,  <unfinished ...>
[pid  5833] rmdir("./3/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" <unfinished ...>
[pid  5832] <... getdents64 resumed>0x555557cdd730 /* 0 entries */, 32768) = 0
[pid  5833] <... rmdir resumed>)        = 0
[pid  5832] close(4)                    = 0
[pid  5832] rmdir("./2/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0
[pid  5833] getdents64(3,  <unfinished ...>
[pid  5832] getdents64(3,  <unfinished ...>
[pid  5833] <... getdents64 resumed>0x555557cd56f0 /* 0 entries */, 32768) = 0
[pid  5832] <... getdents64 resumed>0x555557cd56f0 /* 0 entries */, 32768) = 0
[pid  5833] close(3 <unfinished ...>
[pid  5832] close(3 <unfinished ...>
[pid  5833] <... close resumed>)        = 0
[pid  5832] <... close resumed>)        = 0
[pid  5833] rmdir("./3" <unfinished ...>
[pid  5832] rmdir("./2" <unfinished ...>
[pid  5833] <... rmdir resumed>)        = 0
[pid  5832] <... rmdir resumed>)        = 0
[pid  5833] mkdir("./4", 0777)          = 0
[pid  5832] mkdir("./3", 0777)          = 0
[pid  5833] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  5833] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  5832] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  5833] close(3 <unfinished ...>
[pid  5832] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5833] <... close resumed>)        = 0
[pid  5832] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5832] close(3)                    = 0
[pid  5832] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5991 attached
./strace-static-x86_64: Process 5992 attached
, child_tidptr=0x555557cd4650) = 5991
[pid  5991] set_robust_list(0x555557cd4660, 24 <unfinished ...>
[pid  5992] set_robust_list(0x555557cd4660, 24 <unfinished ...>
[pid  5991] <... set_robust_list resumed>) = 0
[pid  5833] <... clone resumed>, child_tidptr=0x555557cd4650) = 5992
[pid  5992] <... set_robust_list resumed>) = 0
[   69.840345][   T35] bcachefs (loop4): bch2_write_super(): fatal error  loop4: Superblock write was silently dropped! (seq 0 expected 53)
[pid  5992] chdir("./4" <unfinished ...>
[pid  5991] chdir("./3" <unfinished ...>
[pid  5992] <... chdir resumed>)        = 0
[pid  5991] <... chdir resumed>)        = 0
[pid  5992] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5991] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5992] <... prctl resumed>)        = 0
[pid  5991] <... prctl resumed>)        = 0
[pid  5992] setpgid(0, 0 <unfinished ...>
[pid  5991] setpgid(0, 0 <unfinished ...>
[pid  5992] <... setpgid resumed>)      = 0
[pid  5991] <... setpgid resumed>)      = 0
[pid  5991] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5992] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5991] <... openat resumed>)       = 3
[pid  5992] <... openat resumed>)       = 3
[pid  5991] write(3, "1000", 4 <unfinished ...>
[pid  5992] write(3, "1000", 4 <unfinished ...>
[pid  5991] <... write resumed>)        = 4
[pid  5991] close(3 <unfinished ...>
[pid  5992] <... write resumed>)        = 4
[pid  5991] <... close resumed>)        = 0
[pid  5992] close(3)                    = 0
[pid  5992] symlink("/dev/binderfs", "./binderfs" <unfinished ...>
[pid  5991] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5992] <... symlink resumed>)      = 0
[pid  5991] write(1, "executing program\n", 18executing program
) = 18
[pid  5992] write(1, "executing program\n", 18executing program
) = 18
[   69.896335][   T35] bcachefs (loop4): fatal error - emergency read only
[   69.903484][ T5835] bcachefs (loop4): flushing journal and stopping allocators complete, journal seq 3341
[pid  5991] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5992] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5991] <... memfd_create resumed>) = 3
[pid  5992] <... memfd_create resumed>) = 3
[pid  5992] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5991] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ffa86000000
[pid  5992] <... mmap resumed>)         = 0x7ffa86000000
[   69.945196][ T5835] bcachefs (loop4): unshutdown complete, journal seq 3341
[   69.965127][ T5835] bcachefs (loop4): done going read-only, filesystem not clean
[   70.008928][ T5835] bcachefs (loop4): shutdown complete
[pid  5989] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...>
[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"..., 16777216 <unfinished ...>
[pid  5991] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...>
[pid  5992] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...>
[pid  5989] <... write resumed>)        = 16777216
[pid  5989] munmap(0x7ffa86000000, 138412032) = 0
[pid  5989] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5989] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid  5990] <... write resumed>)        = 16777216
[pid  5990] munmap(0x7ffa86000000, 138412032) = 0
[pid  5990] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4
[pid  5989] <... ioctl resumed>)        = 0
[   70.465553][ T5989] loop0: detected capacity change from 0 to 32768
[pid  5990] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid  5989] close(3)                    = 0
[pid  5989] close(4 <unfinished ...>
[pid  5990] <... ioctl resumed>)        = 0
[pid  5989] <... close resumed>)        = 0
[pid  5989] mkdir("./file0", 0777)      = 0
[pid  5990] close(3 <unfinished ...>
[pid  5989] mount("/dev/loop0", "./file0", "bcachefs", MS_POSIXACL, "\x62\x61\x63\x6b\x67\x72\x6f\x75\x6e\xfd\xff\x63\x6f\x6d\x70\x72\x65\x33\x73\x69\x6f\x6e\x3d\x6c\x7a\x34\x2c\x72\x65\x63\x6f\x6e\x73\x74\x72\x75\x63\x74\x5f\x61\x6c\x6c\x6f\x63\x2c\x6e\x6f\x63\x6f\x77\x2c\x6e\x6f\x65\x78\x63\x6c\x2c\x62\x74\x72\x65\x65\x5f\x6e\x6f\x64\x65\x5f\x70\x72\x65\x66\x65\x74\x63\x68\x2c\x6e\x6f\x72\x65\x63\x6f\x76\x65\x72\x79\x2c\x73\x68\x61\x72\x64\x5f\x69\x6e\x6f\x64\x65"... <unfinished ...>
[pid  5990] <... close resumed>)        = 0
[pid  5990] close(4)                    = 0
[pid  5990] mkdir("./file0", 0777)      = 0
[   70.505929][ T5990] loop3: detected capacity change from 0 to 32768
[pid  5990] mount("/dev/loop3", "./file0", "bcachefs", MS_POSIXACL, "\x62\x61\x63\x6b\x67\x72\x6f\x75\x6e\xfd\xff\x63\x6f\x6d\x70\x72\x65\x33\x73\x69\x6f\x6e\x3d\x6c\x7a\x34\x2c\x72\x65\x63\x6f\x6e\x73\x74\x72\x75\x63\x74\x5f\x61\x6c\x6c\x6f\x63\x2c\x6e\x6f\x63\x6f\x77\x2c\x6e\x6f\x65\x78\x63\x6c\x2c\x62\x74\x72\x65\x65\x5f\x6e\x6f\x64\x65\x5f\x70\x72\x65\x66\x65\x74\x63\x68\x2c\x6e\x6f\x72\x65\x63\x6f\x76\x65\x72\x79\x2c\x73\x68\x61\x72\x64\x5f\x69\x6e\x6f\x64\x65"... <unfinished ...>
[pid  5992] <... write resumed>)        = 16777216
[pid  5991] <... write resumed>)        = 16777216
[pid  5992] munmap(0x7ffa86000000, 138412032 <unfinished ...>
[pid  5991] munmap(0x7ffa86000000, 138412032) = 0
[pid  5991] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4
[pid  5991] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid  5992] <... munmap resumed>)       = 0
[pid  5992] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  5991] <... ioctl resumed>)        = 0
[pid  5992] <... openat resumed>)       = 4
[pid  5992] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid  5991] close(3)                    = 0
[pid  5991] close(4 <unfinished ...>
[pid  5992] <... ioctl resumed>)        = 0
[pid  5991] <... close resumed>)        = 0
[pid  5992] close(3)                    = 0
[pid  5991] mkdir("./file0", 0777 <unfinished ...>
[pid  5992] close(4 <unfinished ...>
[pid  5991] <... mkdir resumed>)        = 0
[pid  5992] <... close resumed>)        = 0
[pid  5991] mount("/dev/loop1", "./file0", "bcachefs", MS_POSIXACL, "\x62\x61\x63\x6b\x67\x72\x6f\x75\x6e\xfd\xff\x63\x6f\x6d\x70\x72\x65\x33\x73\x69\x6f\x6e\x3d\x6c\x7a\x34\x2c\x72\x65\x63\x6f\x6e\x73\x74\x72\x75\x63\x74\x5f\x61\x6c\x6c\x6f\x63\x2c\x6e\x6f\x63\x6f\x77\x2c\x6e\x6f\x65\x78\x63\x6c\x2c\x62\x74\x72\x65\x65\x5f\x6e\x6f\x64\x65\x5f\x70\x72\x65\x66\x65\x74\x63\x68\x2c\x6e\x6f\x72\x65\x63\x6f\x76\x65\x72\x79\x2c\x73\x68\x61\x72\x64\x5f\x69\x6e\x6f\x64\x65"... <unfinished ...>
[pid  5992] mkdir("./file0", 0777)      = 0
[   70.611648][ T5991] loop1: detected capacity change from 0 to 32768
[   70.625405][ T5992] loop2: detected capacity change from 0 to 32768
[   70.915650][ T5989] bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=none,compression=lz4,fix_errors=ask,norecovery,nojournal_transaction_names,noexcl,reconstruct_alloc,nocow,no_data_io
[   70.936064][ T5992] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open
[   70.946387][ T5989] bcachefs (loop0): recovering from clean shutdown, journal seq 3338
[   70.955884][ T5991] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open
[   70.956100][ T5989] bcachefs (loop0): Version upgrade required:
[   70.956100][ T5989] Version upgrade from 0.24: unwritten_extents to 1.7: mi_btree_bitmap incomplete
[   70.956100][ T5989] Doing incompatible version upgrade from 0.24: unwritten_extents to 1.13: inode_has_child_snapshots
[   70.956100][ T5989]   running recovery passes: check_allocations,check_alloc_info,check_lrus,check_btree_backpointers,check_backpointers_to_extents,check_extents_to_backpointers,check_alloc_to_lru_refs,bucket_gens_init,check_snapshot_trees,check_snapshots,check_subvols,check_subvol_children,delete_dead_snapshots,check_inodes,check_extents,check_indirect_extents,check_dirents,check_xattrs,check_root,check_unreachable_inodes,check_subvolume_structure,check_directory_structure,check_nlinks,set_fs_needs_rebalance
[   70.974681][ T5991] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete
[   71.036021][ T5990] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open
[   71.053192][ T5990] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete
[   71.053937][ T5992] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete
[   71.155009][ T5989] bcachefs (loop0): dropping and reconstructing all alloc info
[pid  5992] mount("/dev/loop2", "./file0", "bcachefs", MS_POSIXACL, "\x62\x61\x63\x6b\x67\x72\x6f\x75\x6e\xfd\xff\x63\x6f\x6d\x70\x72\x65\x33\x73\x69\x6f\x6e\x3d\x6c\x7a\x34\x2c\x72\x65\x63\x6f\x6e\x73\x74\x72\x75\x63\x74\x5f\x61\x6c\x6c\x6f\x63\x2c\x6e\x6f\x63\x6f\x77\x2c\x6e\x6f\x65\x78\x63\x6c\x2c\x62\x74\x72\x65\x65\x5f\x6e\x6f\x64\x65\x5f\x70\x72\x65\x66\x65\x74\x63\x68\x2c\x6e\x6f\x72\x65\x63\x6f\x76\x65\x72\x79\x2c\x73\x68\x61\x72\x64\x5f\x69\x6e\x6f\x64\x65"... <unfinished ...>
[pid  5990] <... mount resumed>)        = -1 EINVAL (Invalid argument)
[pid  5990] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  5990] ioctl(3, LOOP_CLR_FD)       = 0
[   71.204340][ T5989] bcachefs (loop0): accounting_read... done
[   71.215794][ T5990] bcachefs: bch2_fs_get_tree() error: EINVAL
[   71.251646][ T5992] bcachefs: bch2_fs_get_tree() error: EINVAL
[pid  5990] close(3 <unfinished ...>
[pid  5992] <... mount resumed>)        = -1 EINVAL (Invalid argument)
[pid  5992] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  5992] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5992] close(3 <unfinished ...>
[pid  5835] <... umount2 resumed>)      = 0
[   71.260896][ T5989] bcachefs (loop0): alloc_read... done
[pid  5835] umount2("./2/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5835] newfstatat(AT_FDCWD, "./2/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5835] umount2("./2/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5835] openat(AT_FDCWD, "./2/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid  5835] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5835] getdents64(4, 0x555557cdd730 /* 2 entries */, 32768) = 48
[pid  5835] getdents64(4, 0x555557cdd730 /* 0 entries */, 32768) = 0
[pid  5835] close(4)                    = 0
[pid  5835] rmdir("./2/file0")          = 0
[   71.316606][ T5989] bcachefs (loop0): stripes_read... done
[   71.322948][ T5989] bcachefs (loop0): snapshots_read... done
[pid  5835] getdents64(3, 0x555557cd56f0 /* 0 entries */, 32768) = 0
[pid  5835] close(3)                    = 0
[pid  5835] rmdir("./2")                = 0
[pid  5835] mkdir("./3", 0777)          = 0
[pid  5991] <... mount resumed>)        = -1 EINVAL (Invalid argument)
[pid  5835] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  5835] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  5835] close(3)                    = 0
[pid  5991] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  5991] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5991] close(3 <unfinished ...>
[pid  5835] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555557cd4650) = 6022
[   71.334057][ T5989] bcachefs (loop0): check_allocations...
[   71.379100][ T5991] bcachefs: bch2_fs_get_tree() error: EINVAL
[   71.399493][ T5989]  done
[   71.417035][ T5989] bcachefs (loop0): going read-write
./strace-static-x86_64: Process 6022 attached
[pid  5990] <... close resumed>)        = 0
[pid  6022] set_robust_list(0x555557cd4660, 24) = 0
[pid  6022] chdir("./3")                = 0
[pid  6022] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  6022] setpgid(0, 0)               = 0
[pid  6022] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5990] mkdirat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 <unfinished ...>
[pid  5992] <... close resumed>)        = 0
[pid  5990] <... mkdirat resumed>)      = 0
[pid  5992] mkdirat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 <unfinished ...>
[pid  6022] <... openat resumed>)       = 3
[pid  6022] write(3, "1000", 4 <unfinished ...>
[pid  5992] <... mkdirat resumed>)      = 0
[pid  6022] <... write resumed>)        = 4
[pid  6022] close(3)                    = 0
[pid  5990] exit_group(0 <unfinished ...>
[pid  6022] symlink("/dev/binderfs", "./binderfs" <unfinished ...>
[pid  5990] <... exit_group resumed>)   = ?
[pid  5989] <... mount resumed>)        = 0
[pid  5992] exit_group(0 <unfinished ...>
[pid  6022] <... symlink resumed>)      = 0
[pid  5992] <... exit_group resumed>)   = ?
[pid  5990] +++ exited with 0 +++
[pid  5989] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORYexecuting program
 <unfinished ...>
[pid  6022] write(1, "executing program\n", 18) = 18
[pid  5834] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5990, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=34 /* 0.34 s */} ---
[pid  6022] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5992] +++ exited with 0 +++
[pid  5989] <... openat resumed>)       = 3
[pid  5834] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  6022] <... memfd_create resumed>) = 3
[pid  5989] chdir("./file0" <unfinished ...>
[pid  5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5992, si_uid=0, si_status=0, si_utime=10 /* 0.10 s */, si_stime=40 /* 0.40 s */} ---
[pid  6022] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5989] <... chdir resumed>)        = 0
[pid  5833] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  6022] <... mmap resumed>)         = 0x7ffa86000000
[pid  5989] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  5834] <... restart_syscall resumed>) = 0
[pid  5833] <... restart_syscall resumed>) = 0
[pid  5989] <... openat resumed>)       = 4
[pid  5989] ioctl(4, LOOP_CLR_FD)       = 0
[pid  5834] umount2("./4", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5833] umount2("./4", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5989] close(4 <unfinished ...>
[pid  5834] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5833] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5834] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid  5833] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid  5834] <... openat resumed>)       = 3
[pid  5834] newfstatat(3, "",  <unfinished ...>
[pid  5833] <... openat resumed>)       = 3
[pid  5834] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5833] newfstatat(3, "",  <unfinished ...>
[pid  5834] getdents64(3,  <unfinished ...>
[pid  5833] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5834] <... getdents64 resumed>0x555557cd56f0 /* 5 entries */, 32768) = 384
[pid  5833] getdents64(3,  <unfinished ...>
[pid  5834] umount2("./4/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5833] <... getdents64 resumed>0x555557cd56f0 /* 5 entries */, 32768) = 384
[pid  5834] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5833] umount2("./4/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5834] newfstatat(AT_FDCWD, "./4/binderfs",  <unfinished ...>
[pid  5833] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5834] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] newfstatat(AT_FDCWD, "./4/binderfs",  <unfinished ...>
[pid  5989] <... close resumed>)        = 0
[   71.466034][ T5989] bcachefs (loop0): done starting filesystem
[pid  5834] unlink("./4/binderfs")      = 0
[pid  5833] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5834] umount2("./4/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5833] unlink("./4/binderfs" <unfinished ...>
[pid  5834] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5833] <... unlink resumed>)       = 0
[pid  5989] mkdirat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 <unfinished ...>
[pid  5834] newfstatat(AT_FDCWD, "./4/file0",  <unfinished ...>
[pid  5833] umount2("./4/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5834] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5834] umount2("./4/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5833] newfstatat(AT_FDCWD, "./4/file0",  <unfinished ...>
[pid  5989] <... mkdirat resumed>)      = 0
[pid  5834] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5833] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5989] exit_group(0 <unfinished ...>
[pid  5834] openat(AT_FDCWD, "./4/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid  5833] umount2("./4/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5989] <... exit_group resumed>)   = ?
[pid  5834] <... openat resumed>)       = 4
[pid  5833] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5834] newfstatat(4, "",  <unfinished ...>
[pid  5833] openat(AT_FDCWD, "./4/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid  5834] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5833] <... openat resumed>)       = 4
[pid  5834] getdents64(4,  <unfinished ...>
[pid  5833] newfstatat(4, "",  <unfinished ...>
[pid  5834] <... getdents64 resumed>0x555557cdd730 /* 2 entries */, 32768) = 48
[pid  5833] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5834] getdents64(4,  <unfinished ...>
[pid  5833] getdents64(4,  <unfinished ...>
[pid  5834] <... getdents64 resumed>0x555557cdd730 /* 0 entries */, 32768) = 0
[pid  5833] <... getdents64 resumed>0x555557cdd730 /* 2 entries */, 32768) = 48
[pid  5834] close(4 <unfinished ...>
[pid  5833] getdents64(4,  <unfinished ...>
[pid  5834] <... close resumed>)        = 0
[pid  5833] <... getdents64 resumed>0x555557cdd730 /* 0 entries */, 32768) = 0
[pid  5834] rmdir("./4/file0" <unfinished ...>
[pid  5833] close(4 <unfinished ...>
[pid  5834] <... rmdir resumed>)        = 0
[pid  5989] +++ exited with 0 +++
[pid  5834] umount2("./4/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5833] <... close resumed>)        = 0
[pid  5834] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5833] rmdir("./4/file0" <unfinished ...>
[pid  5831] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5989, si_uid=0, si_status=0, si_utime=9 /* 0.09 s */, si_stime=31 /* 0.31 s */} ---
[pid  5831] umount2("./3", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5831] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid  5831] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5833] <... rmdir resumed>)        = 0
[pid  5831] getdents64(3,  <unfinished ...>
[pid  5834] newfstatat(AT_FDCWD, "./4/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",  <unfinished ...>
[pid  5831] <... getdents64 resumed>0x555557cd56f0 /* 4 entries */, 32768) = 112
[pid  5834] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5831] umount2("./3/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5833] umount2("./4/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5831] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5834] umount2("./4/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5833] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5831] newfstatat(AT_FDCWD, "./3/binderfs",  <unfinished ...>
[pid  5834] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./4/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",  <unfinished ...>
[pid  5831] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5834] openat(AT_FDCWD, "./4/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid  5833] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5831] unlink("./3/binderfs" <unfinished ...>
[pid  5834] <... openat resumed>)       = 4
[pid  5833] umount2("./4/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5831] <... unlink resumed>)       = 0
[pid  5834] newfstatat(4, "",  <unfinished ...>
[pid  5833] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5831] umount2("./3/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5834] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5833] openat(AT_FDCWD, "./4/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid  5834] getdents64(4,  <unfinished ...>
[pid  5833] <... openat resumed>)       = 4
[pid  5834] <... getdents64 resumed>0x555557cdd730 /* 2 entries */, 32768) = 48
[pid  5833] newfstatat(4, "",  <unfinished ...>
[pid  5834] getdents64(4,  <unfinished ...>
[pid  5833] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5834] <... getdents64 resumed>0x555557cdd730 /* 0 entries */, 32768) = 0
[pid  5833] getdents64(4,  <unfinished ...>
[pid  5834] close(4 <unfinished ...>
[pid  5833] <... getdents64 resumed>0x555557cdd730 /* 2 entries */, 32768) = 48
[pid  5834] <... close resumed>)        = 0
[pid  5833] getdents64(4,  <unfinished ...>
[pid  5834] rmdir("./4/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" <unfinished ...>
[pid  5833] <... getdents64 resumed>0x555557cdd730 /* 0 entries */, 32768) = 0
[pid  5834] <... rmdir resumed>)        = 0
[pid  5833] close(4 <unfinished ...>
[pid  5834] getdents64(3,  <unfinished ...>
[pid  5833] <... close resumed>)        = 0
[pid  5834] <... getdents64 resumed>0x555557cd56f0 /* 0 entries */, 32768) = 0
[pid  5833] rmdir("./4/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" <unfinished ...>
[pid  5834] close(3 <unfinished ...>
[pid  5833] <... rmdir resumed>)        = 0
[pid  5834] <... close resumed>)        = 0
[pid  5833] getdents64(3,  <unfinished ...>
[pid  5834] rmdir("./4" <unfinished ...>
[pid  5833] <... getdents64 resumed>0x555557cd56f0 /* 0 entries */, 32768) = 0
[pid  5834] <... rmdir resumed>)        = 0
[pid  5833] close(3 <unfinished ...>
[pid  5834] mkdir("./5", 0777 <unfinished ...>
[pid  5833] <... close resumed>)        = 0
[pid  5834] <... mkdir resumed>)        = 0
[pid  5833] rmdir("./4" <unfinished ...>
[pid  5834] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  5833] <... rmdir resumed>)        = 0
[pid  5834] <... openat resumed>)       = 3
[pid  5833] mkdir("./5", 0777 <unfinished ...>
[pid  5834] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5833] <... mkdir resumed>)        = 0
[pid  5834] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  5833] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  5834] close(3 <unfinished ...>
[pid  5833] <... openat resumed>)       = 3
[pid  5834] <... close resumed>)        = 0
[pid  5834] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5833] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 6025 attached
)       = -1 ENXIO (No such device or address)
[pid  5833] close(3)                    = 0
[pid  5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6026 attached
 <unfinished ...>
[pid  6026] set_robust_list(0x555557cd4660, 24 <unfinished ...>
[pid  6025] set_robust_list(0x555557cd4660, 24 <unfinished ...>
[pid  5834] <... clone resumed>, child_tidptr=0x555557cd4650) = 6025
[pid  5833] <... clone resumed>, child_tidptr=0x555557cd4650) = 6026
[pid  6026] <... set_robust_list resumed>) = 0
[pid  6025] <... set_robust_list resumed>) = 0
[pid  6026] chdir("./5" <unfinished ...>
[pid  6025] chdir("./5" <unfinished ...>
[pid  6026] <... chdir resumed>)        = 0
[pid  6025] <... chdir resumed>)        = 0
[pid  6026] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  6026] setpgid(0, 0 <unfinished ...>
[pid  6025] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  6025] setpgid(0, 0)               = 0
[pid  6026] <... setpgid resumed>)      = 0
[pid  6025] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  6026] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  6025] <... openat resumed>)       = 3
[pid  6025] write(3, "1000", 4)         = 4
executing program
[pid  6026] <... openat resumed>)       = 3
[pid  6025] close(3)                    = 0
[pid  6026] write(3, "1000", 4 <unfinished ...>
[pid  6025] symlink("/dev/binderfs", "./binderfs" <unfinished ...>
[pid  6026] <... write resumed>)        = 4
[pid  6025] <... symlink resumed>)      = 0
[pid  6026] close(3 <unfinished ...>
[pid  6025] write(1, "executing program\n", 18 <unfinished ...>
[pid  6026] <... close resumed>)        = 0
[pid  6025] <... write resumed>)        = 18
[pid  6026] symlink("/dev/binderfs", "./binderfs" <unfinished ...>
[pid  6025] memfd_create("syzkaller", 0 <unfinished ...>
[pid  6026] <... symlink resumed>)      = 0
[pid  6025] <... memfd_create resumed>) = 3
executing program
[pid  6026] write(1, "executing program\n", 18 <unfinished ...>
[pid  6025] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  6026] <... write resumed>)        = 18
[pid  6025] <... mmap resumed>)         = 0x7ffa86000000
[   71.577362][ T5831] bcachefs (loop0): shutting down
[   71.582448][ T5831] bcachefs (loop0): going read-only
[   71.602500][ T5831] bcachefs (loop0): finished waiting for writes to stop
[pid  6026] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5991] <... close resumed>)        = 0
[pid  5991] mkdirat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 <unfinished ...>
[pid  6026] <... memfd_create resumed>) = 3
[pid  5991] <... mkdirat resumed>)      = 0
[pid  6026] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ffa86000000
[pid  5991] exit_group(0)               = ?
[pid  5991] +++ exited with 0 +++
[pid  5832] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5991, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=41 /* 0.41 s */} ---
[pid  5832] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  5832] umount2("./3", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5832] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid  5832] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5832] getdents64(3, 0x555557cd56f0 /* 5 entries */, 32768) = 384
[pid  5832] umount2("./3/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5832] newfstatat(AT_FDCWD, "./3/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5832] unlink("./3/binderfs")      = 0
[pid  5832] umount2("./3/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5832] newfstatat(AT_FDCWD, "./3/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[   71.635547][ T5831] bcachefs (loop0): flushing journal and stopping allocators, journal seq 3339
[pid  5832] umount2("./3/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5832] openat(AT_FDCWD, "./3/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid  5832] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5832] getdents64(4, 0x555557cdd730 /* 2 entries */, 32768) = 48
[pid  5832] getdents64(4, 0x555557cdd730 /* 0 entries */, 32768) = 0
[pid  5832] close(4)                    = 0
[pid  5832] rmdir("./3/file0")          = 0
[pid  5832] umount2("./3/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5832] newfstatat(AT_FDCWD, "./3/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", {st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5832] umount2("./3/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5832] openat(AT_FDCWD, "./3/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid  5832] newfstatat(4, "", {st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5832] getdents64(4, 0x555557cdd730 /* 2 entries */, 32768) = 48
[pid  5832] getdents64(4, 0x555557cdd730 /* 0 entries */, 32768) = 0
[pid  5832] close(4)                    = 0
[pid  5832] rmdir("./3/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0
[pid  5832] getdents64(3, 0x555557cd56f0 /* 0 entries */, 32768) = 0
[pid  5832] close(3)                    = 0
[pid  5832] rmdir("./3")                = 0
[pid  5832] mkdir("./4", 0777)          = 0
[pid  5832] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  5832] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  5832] close(3)                    = 0
[pid  5832] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6027 attached
 <unfinished ...>
[pid  6027] set_robust_list(0x555557cd4660, 24) = 0
[pid  6027] chdir("./4")                = 0
[pid  5832] <... clone resumed>, child_tidptr=0x555557cd4650) = 6027
[pid  6027] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  6027] setpgid(0, 0)               = 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
[pid  6027] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid  6027] write(1, "executing program\n", 18) = 18
[pid  6027] memfd_create("syzkaller", 0) = 3
[pid  6027] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ffa86000000
[   71.751362][   T11] bcachefs (loop0): bch2_write_super(): fatal error  loop0: Superblock write was silently dropped! (seq 0 expected 53)
[   71.805823][   T11] bcachefs (loop0): fatal error - emergency read only
[   71.814614][ T5831] bcachefs (loop0): flushing journal and stopping allocators complete, journal seq 3342
[   71.849094][ T5831] bcachefs (loop0): unshutdown complete, journal seq 3342
[   71.875508][ T5831] bcachefs (loop0): done going read-only, filesystem not clean
[pid  6022] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...>
[   71.966508][ T5831] bcachefs (loop0): shutdown complete
[pid  6026] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...>
[pid  6025] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...>
[pid  6027] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...>
[pid  6022] <... write resumed>)        = 16777216
[pid  6022] munmap(0x7ffa86000000, 138412032) = 0
[pid  6022] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4
[pid  6022] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  6022] close(3)                    = 0
[pid  6022] close(4)                    = 0
[pid  6022] mkdir("./file0", 0777)      = 0
[   72.246285][ T6022] loop4: detected capacity change from 0 to 32768
[pid  6022] mount("/dev/loop4", "./file0", "bcachefs", MS_POSIXACL, "\x62\x61\x63\x6b\x67\x72\x6f\x75\x6e\xfd\xff\x63\x6f\x6d\x70\x72\x65\x33\x73\x69\x6f\x6e\x3d\x6c\x7a\x34\x2c\x72\x65\x63\x6f\x6e\x73\x74\x72\x75\x63\x74\x5f\x61\x6c\x6c\x6f\x63\x2c\x6e\x6f\x63\x6f\x77\x2c\x6e\x6f\x65\x78\x63\x6c\x2c\x62\x74\x72\x65\x65\x5f\x6e\x6f\x64\x65\x5f\x70\x72\x65\x66\x65\x74\x63\x68\x2c\x6e\x6f\x72\x65\x63\x6f\x76\x65\x72\x79\x2c\x73\x68\x61\x72\x64\x5f\x69\x6e\x6f\x64\x65"... <unfinished ...>
[pid  6025] <... write resumed>)        = 16777216
[pid  6025] munmap(0x7ffa86000000, 138412032 <unfinished ...>
[pid  6026] <... write resumed>)        = 16777216
[pid  6026] munmap(0x7ffa86000000, 138412032 <unfinished ...>
[pid  6025] <... munmap resumed>)       = 0
[pid  6027] <... write resumed>)        = 16777216
[pid  6026] <... munmap resumed>)       = 0
[pid  6025] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  6027] munmap(0x7ffa86000000, 138412032 <unfinished ...>
[pid  6026] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  6025] <... openat resumed>)       = 4
[pid  6026] <... openat resumed>)       = 4
[pid  6025] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid  6026] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid  6027] <... munmap resumed>)       = 0
[pid  6025] <... ioctl resumed>)        = 0
[pid  6027] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  6026] <... ioctl resumed>)        = 0
[pid  6027] <... openat resumed>)       = 4
[pid  6026] close(3 <unfinished ...>
[pid  6025] close(3 <unfinished ...>
[pid  6027] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid  6025] <... close resumed>)        = 0
[pid  6026] <... close resumed>)        = 0
[pid  6026] close(4)                    = 0
[pid  6025] close(4)                    = 0
[pid  6025] mkdir("./file0", 0777)      = 0
[pid  6025] mount("/dev/loop3", "./file0", "bcachefs", MS_POSIXACL, "\x62\x61\x63\x6b\x67\x72\x6f\x75\x6e\xfd\xff\x63\x6f\x6d\x70\x72\x65\x33\x73\x69\x6f\x6e\x3d\x6c\x7a\x34\x2c\x72\x65\x63\x6f\x6e\x73\x74\x72\x75\x63\x74\x5f\x61\x6c\x6c\x6f\x63\x2c\x6e\x6f\x63\x6f\x77\x2c\x6e\x6f\x65\x78\x63\x6c\x2c\x62\x74\x72\x65\x65\x5f\x6e\x6f\x64\x65\x5f\x70\x72\x65\x66\x65\x74\x63\x68\x2c\x6e\x6f\x72\x65\x63\x6f\x76\x65\x72\x79\x2c\x73\x68\x61\x72\x64\x5f\x69\x6e\x6f\x64\x65"... <unfinished ...>
[pid  6026] mkdir("./file0", 0777 <unfinished ...>
[pid  6027] <... ioctl resumed>)        = 0
[pid  6026] <... mkdir resumed>)        = 0
[pid  6026] mount("/dev/loop2", "./file0", "bcachefs", MS_POSIXACL, "\x62\x61\x63\x6b\x67\x72\x6f\x75\x6e\xfd\xff\x63\x6f\x6d\x70\x72\x65\x33\x73\x69\x6f\x6e\x3d\x6c\x7a\x34\x2c\x72\x65\x63\x6f\x6e\x73\x74\x72\x75\x63\x74\x5f\x61\x6c\x6c\x6f\x63\x2c\x6e\x6f\x63\x6f\x77\x2c\x6e\x6f\x65\x78\x63\x6c\x2c\x62\x74\x72\x65\x65\x5f\x6e\x6f\x64\x65\x5f\x70\x72\x65\x66\x65\x74\x63\x68\x2c\x6e\x6f\x72\x65\x63\x6f\x76\x65\x72\x79\x2c\x73\x68\x61\x72\x64\x5f\x69\x6e\x6f\x64\x65"... <unfinished ...>
[pid  6027] close(3)                    = 0
[pid  6027] close(4)                    = 0
[pid  6027] mkdir("./file0", 0777)      = 0
[   72.387918][ T6025] loop3: detected capacity change from 0 to 32768
[   72.395280][ T6026] loop2: detected capacity change from 0 to 32768
[   72.409341][ T6027] loop1: detected capacity change from 0 to 32768
[   72.719963][ T6022] bcachefs (loop4): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=none,compression=lz4,fix_errors=ask,norecovery,nojournal_transaction_names,noexcl,reconstruct_alloc,nocow,no_data_io
[   72.741387][ T6022] bcachefs (loop4): recovering from clean shutdown, journal seq 3338
[   72.749721][ T6022] bcachefs (loop4): Version upgrade required:
[   72.749721][ T6022] Version upgrade from 0.24: unwritten_extents to 1.7: mi_btree_bitmap incomplete
[   72.749721][ T6022] Doing incompatible version upgrade from 0.24: unwritten_extents to 1.13: inode_has_child_snapshots
[   72.749721][ T6022]   running recovery passes: check_allocations,check_alloc_info,check_lrus,check_btree_backpointers,check_backpointers_to_extents,check_extents_to_backpointers,check_alloc_to_lru_refs,bucket_gens_init,check_snapshot_trees,check_snapshots,check_subvols,check_subvol_children,delete_dead_snapshots,check_inodes,check_extents,check_indirect_extents,check_dirents,check_xattrs,check_root,check_unreachable_inodes,check_subvolume_structure,check_directory_structure,check_nlinks,set_fs_needs_rebalance
[   72.785789][ T6026] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open
[   72.830238][ T6026] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete
[   72.846062][ T6025] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open
[   72.855843][ T6022] bcachefs (loop4): dropping and reconstructing all alloc info
[   72.869136][ T6025] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete
[   72.875406][ T6022] bcachefs (loop4): accounting_read...
[   72.893758][ T6027] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open
[   72.894654][ T6022]  done
[   72.908438][ T6027] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete
[   72.911677][ T6022] bcachefs (loop4): alloc_read... done
[   72.935234][ T6022] bcachefs (loop4): stripes_read... done
[   72.944902][ T6022] bcachefs (loop4): snapshots_read... done
[pid  6027] mount("/dev/loop1", "./file0", "bcachefs", MS_POSIXACL, "\x62\x61\x63\x6b\x67\x72\x6f\x75\x6e\xfd\xff\x63\x6f\x6d\x70\x72\x65\x33\x73\x69\x6f\x6e\x3d\x6c\x7a\x34\x2c\x72\x65\x63\x6f\x6e\x73\x74\x72\x75\x63\x74\x5f\x61\x6c\x6c\x6f\x63\x2c\x6e\x6f\x63\x6f\x77\x2c\x6e\x6f\x65\x78\x63\x6c\x2c\x62\x74\x72\x65\x65\x5f\x6e\x6f\x64\x65\x5f\x70\x72\x65\x66\x65\x74\x63\x68\x2c\x6e\x6f\x72\x65\x63\x6f\x76\x65\x72\x79\x2c\x73\x68\x61\x72\x64\x5f\x69\x6e\x6f\x64\x65"... <unfinished ...>
[pid  6026] <... mount resumed>)        = -1 EINVAL (Invalid argument)
[pid  6026] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  6026] ioctl(3, LOOP_CLR_FD)       = 0
[   72.950812][ T6022] bcachefs (loop4): check_allocations...
[   72.967932][ T6026] bcachefs: bch2_fs_get_tree() error: EINVAL
[   73.003101][ T6022]  done
[   73.050595][ T6022] bcachefs (loop4): going read-write
[pid  6026] close(3 <unfinished ...>
[pid  6022] <... mount resumed>)        = 0
[pid  6022] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid  6025] <... mount resumed>)        = -1 EINVAL (Invalid argument)
[pid  6025] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  6022] <... openat resumed>)       = 3
[pid  6022] chdir("./file0")            = 0
[pid  6022] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  6025] <... openat resumed>)       = 3
[pid  6022] <... openat resumed>)       = 4
[pid  6025] ioctl(3, LOOP_CLR_FD)       = 0
[pid  6022] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid  6025] close(3 <unfinished ...>
[pid  6022] <... ioctl resumed>)        = 0
[pid  6022] close(4)                    = 0
[pid  6022] mkdirat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 <unfinished ...>
[pid  6027] <... mount resumed>)        = -1 EINVAL (Invalid argument)
[pid  6022] <... mkdirat resumed>)      = 0
[   73.096441][ T6022] bcachefs (loop4): done starting filesystem
[   73.104323][ T6025] bcachefs: bch2_fs_get_tree() error: EINVAL
[   73.113501][ T6027] bcachefs: bch2_fs_get_tree() error: EINVAL
[pid  6022] exit_group(0)               = ?
[pid  6022] +++ exited with 0 +++
[pid  5835] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6022, si_uid=0, si_status=0, si_utime=7 /* 0.07 s */, si_stime=38 /* 0.38 s */} ---
[pid  5835] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  6027] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  5835] <... restart_syscall resumed>) = 0
[pid  5835] umount2("./3", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5835] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid  6027] <... openat resumed>)       = 3
[pid  5835] <... openat resumed>)       = 3
[pid  6027] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5835] newfstatat(3, "",  <unfinished ...>
[pid  6027] <... ioctl resumed>)        = 0
[pid  5835] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  6027] close(3 <unfinished ...>
[pid  5835] getdents64(3, 0x555557cd56f0 /* 4 entries */, 32768) = 112
[pid  5835] umount2("./3/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5835] newfstatat(AT_FDCWD, "./3/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5835] unlink("./3/binderfs")      = 0
[pid  5835] umount2("./3/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5831] <... umount2 resumed>)      = 0
[pid  5831] umount2("./3/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5831] newfstatat(AT_FDCWD, "./3/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5831] umount2("./3/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5831] openat(AT_FDCWD, "./3/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid  5831] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5831] getdents64(4, 0x555557cdd730 /* 2 entries */, 32768) = 48
[pid  5831] getdents64(4, 0x555557cdd730 /* 0 entries */, 32768) = 0
[pid  5831] close(4)                    = 0
[pid  5831] rmdir("./3/file0")          = 0
[pid  5831] getdents64(3, 0x555557cd56f0 /* 0 entries */, 32768) = 0
[pid  5831] close(3)                    = 0
[pid  5831] rmdir("./3")                = 0
[pid  5831] mkdir("./4", 0777)          = 0
[pid  5831] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  5831] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  5831] close(3)                    = 0
[pid  5831] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6059 attached
, child_tidptr=0x555557cd4650) = 6059
[pid  6059] set_robust_list(0x555557cd4660, 24) = 0
[pid  6059] chdir("./4")                = 0
[pid  6059] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  6059] setpgid(0, 0)               = 0
[pid  6059] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  6059] write(3, "1000", 4)         = 4
[pid  6059] close(3)                    = 0
[pid  6059] symlink("/dev/binderfs", "./binderfs") = 0
[pid  6059] write(1, "executing program\n", 18executing program
) = 18
[   73.230252][ T5835] bcachefs (loop4): shutting down
[   73.247504][ T5835] bcachefs (loop4): going read-only
[   73.252750][ T5835] bcachefs (loop4): finished waiting for writes to stop
[pid  6059] memfd_create("syzkaller", 0) = 3
[pid  6059] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ffa86000000
[pid  6026] <... close resumed>)        = 0
[pid  6025] <... close resumed>)        = 0
[pid  6026] mkdirat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000) = 0
[pid  6025] mkdirat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 <unfinished ...>
[pid  6026] exit_group(0 <unfinished ...>
[pid  6025] <... mkdirat resumed>)      = 0
[pid  6026] <... exit_group resumed>)   = ?
[pid  6025] exit_group(0 <unfinished ...>
[pid  6026] +++ exited with 0 +++
[pid  6025] <... exit_group resumed>)   = ?
[pid  5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6026, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=43 /* 0.43 s */} ---
[pid  5833] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  6025] +++ exited with 0 +++
[pid  5834] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6025, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=38 /* 0.38 s */} ---
[pid  5834] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  5833] <... restart_syscall resumed>) = 0
[pid  5834] <... restart_syscall resumed>) = 0
[pid  5833] umount2("./5", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5834] umount2("./5", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5833] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5834] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5833] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid  5834] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid  5833] <... openat resumed>)       = 3
[pid  5834] <... openat resumed>)       = 3
[pid  5833] newfstatat(3, "",  <unfinished ...>
[pid  5834] newfstatat(3, "",  <unfinished ...>
[pid  5833] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5834] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5833] getdents64(3,  <unfinished ...>
[pid  5834] getdents64(3,  <unfinished ...>
[pid  5833] <... getdents64 resumed>0x555557cd56f0 /* 5 entries */, 32768) = 384
[pid  5834] <... getdents64 resumed>0x555557cd56f0 /* 5 entries */, 32768) = 384
[pid  5833] umount2("./5/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5834] umount2("./5/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5833] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5834] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./5/binderfs",  <unfinished ...>
[pid  5834] newfstatat(AT_FDCWD, "./5/binderfs",  <unfinished ...>
[pid  5833] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5834] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[   73.355208][ T5835] bcachefs (loop4): flushing journal and stopping allocators, journal seq 3340
[pid  5833] unlink("./5/binderfs" <unfinished ...>
[pid  5834] unlink("./5/binderfs" <unfinished ...>
[pid  5833] <... unlink resumed>)       = 0
[pid  5834] <... unlink resumed>)       = 0
[pid  5833] umount2("./5/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5834] umount2("./5/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5833] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5834] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./5/file0",  <unfinished ...>
[pid  5834] newfstatat(AT_FDCWD, "./5/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5834] umount2("./5/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5833] umount2("./5/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5834] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5833] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  6027] <... close resumed>)        = 0
[pid  5834] openat(AT_FDCWD, "./5/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid  5833] openat(AT_FDCWD, "./5/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid  6027] mkdirat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000 <unfinished ...>
[pid  5834] <... openat resumed>)       = 4
[pid  6027] <... mkdirat resumed>)      = 0
[pid  5834] newfstatat(4, "",  <unfinished ...>
[pid  5833] <... openat resumed>)       = 4
[pid  6027] exit_group(0 <unfinished ...>
[pid  5834] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5833] newfstatat(4, "",  <unfinished ...>
[pid  6027] <... exit_group resumed>)   = ?
[pid  5834] getdents64(4,  <unfinished ...>
[pid  5833] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5834] <... getdents64 resumed>0x555557cdd730 /* 2 entries */, 32768) = 48
[pid  5833] getdents64(4,  <unfinished ...>
[pid  6027] +++ exited with 0 +++
[pid  5834] getdents64(4,  <unfinished ...>
[pid  5833] <... getdents64 resumed>0x555557cdd730 /* 2 entries */, 32768) = 48
[pid  5834] <... getdents64 resumed>0x555557cdd730 /* 0 entries */, 32768) = 0
[pid  5833] getdents64(4,  <unfinished ...>
[pid  5834] close(4 <unfinished ...>
[pid  5832] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6027, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=38 /* 0.38 s */} ---
[pid  5833] <... getdents64 resumed>0x555557cdd730 /* 0 entries */, 32768) = 0
[pid  5832] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  5834] <... close resumed>)        = 0
[pid  5833] close(4 <unfinished ...>
[pid  5834] rmdir("./5/file0" <unfinished ...>
[pid  5833] <... close resumed>)        = 0
[pid  5834] <... rmdir resumed>)        = 0
[pid  5833] rmdir("./5/file0" <unfinished ...>
[pid  5834] umount2("./5/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5833] <... rmdir resumed>)        = 0
[pid  5832] <... restart_syscall resumed>) = 0
[pid  5834] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5834] newfstatat(AT_FDCWD, "./5/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",  <unfinished ...>
[pid  5833] umount2("./5/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5834] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5832] umount2("./4", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5834] umount2("./5/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5833] newfstatat(AT_FDCWD, "./5/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",  <unfinished ...>
[pid  5832] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5834] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5834] openat(AT_FDCWD, "./5/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid  5833] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5832] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid  5834] <... openat resumed>)       = 4
[pid  5833] umount2("./5/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5832] newfstatat(3, "",  <unfinished ...>
[pid  5834] newfstatat(4, "",  <unfinished ...>
[pid  5833] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5834] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5833] openat(AT_FDCWD, "./5/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid  5832] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5834] getdents64(4,  <unfinished ...>
[pid  5832] getdents64(3,  <unfinished ...>
[pid  5834] <... getdents64 resumed>0x555557cdd730 /* 2 entries */, 32768) = 48
[pid  5832] <... getdents64 resumed>0x555557cd56f0 /* 5 entries */, 32768) = 384
[pid  5834] getdents64(4,  <unfinished ...>
[pid  5832] umount2("./4/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5834] <... getdents64 resumed>0x555557cdd730 /* 0 entries */, 32768) = 0
[pid  5832] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5834] close(4 <unfinished ...>
[pid  5832] newfstatat(AT_FDCWD, "./4/binderfs",  <unfinished ...>
[pid  5834] <... close resumed>)        = 0
[pid  5834] rmdir("./5/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" <unfinished ...>
[pid  5832] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] <... openat resumed>)       = 4
[pid  5834] <... rmdir resumed>)        = 0
[pid  5833] newfstatat(4, "",  <unfinished ...>
[   73.434843][   T12] bcachefs (loop4): bch2_write_super(): fatal error  loop4: Superblock write was silently dropped! (seq 0 expected 53)
[   73.461412][   T12] bcachefs (loop4): fatal error - emergency read only
[pid  5832] unlink("./4/binderfs" <unfinished ...>
[pid  5834] getdents64(3,  <unfinished ...>
[pid  6059] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...>
[pid  5834] <... getdents64 resumed>0x555557cd56f0 /* 0 entries */, 32768) = 0
[pid  5833] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5832] <... unlink resumed>)       = 0
[pid  5834] close(3 <unfinished ...>
[pid  5833] getdents64(4,  <unfinished ...>
[pid  5832] umount2("./4/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5834] <... close resumed>)        = 0
[pid  5833] <... getdents64 resumed>0x555557cdd730 /* 2 entries */, 32768) = 48
[pid  5832] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5834] rmdir("./5")                = 0
[pid  5833] getdents64(4,  <unfinished ...>
[pid  5832] newfstatat(AT_FDCWD, "./4/file0",  <unfinished ...>
[pid  5834] mkdir("./6", 0777 <unfinished ...>
[pid  5833] <... getdents64 resumed>0x555557cdd730 /* 0 entries */, 32768) = 0
[pid  5832] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5834] <... mkdir resumed>)        = 0
[pid  5833] close(4 <unfinished ...>
[pid  5832] umount2("./4/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5834] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  5833] <... close resumed>)        = 0
[pid  5832] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5834] <... openat resumed>)       = 3
[pid  5833] rmdir("./5/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" <unfinished ...>
[pid  5832] openat(AT_FDCWD, "./4/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid  5834] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5833] <... rmdir resumed>)        = 0
[pid  5832] <... openat resumed>)       = 4
[pid  5834] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  5833] getdents64(3,  <unfinished ...>
[pid  5832] newfstatat(4, "",  <unfinished ...>
[pid  5834] close(3 <unfinished ...>
[pid  5833] <... getdents64 resumed>0x555557cd56f0 /* 0 entries */, 32768) = 0
[pid  5832] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5834] <... close resumed>)        = 0
[pid  5833] close(3 <unfinished ...>
[pid  5832] getdents64(4,  <unfinished ...>
[pid  5834] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5833] <... close resumed>)        = 0
[pid  5832] <... getdents64 resumed>0x555557cdd730 /* 2 entries */, 32768) = 48
[pid  5833] rmdir("./5" <unfinished ...>
[pid  5832] getdents64(4,  <unfinished ...>
[pid  5833] <... rmdir resumed>)        = 0
[pid  5832] <... getdents64 resumed>0x555557cdd730 /* 0 entries */, 32768) = 0
[pid  5833] mkdir("./6", 0777 <unfinished ...>
[pid  5832] close(4 <unfinished ...>
[pid  5833] <... mkdir resumed>)        = 0
[pid  5832] <... close resumed>)        = 0
./strace-static-x86_64: Process 6060 attached
[pid  5834] <... clone resumed>, child_tidptr=0x555557cd4650) = 6060
[pid  5833] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  5832] rmdir("./4/file0" <unfinished ...>
[pid  5833] <... openat resumed>)       = 3
[pid  5832] <... rmdir resumed>)        = 0
[pid  5833] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5832] umount2("./4/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5833] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  5832] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5832] newfstatat(AT_FDCWD, "./4/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",  <unfinished ...>
[pid  6060] set_robust_list(0x555557cd4660, 24 <unfinished ...>
[pid  5833] close(3 <unfinished ...>
[pid  5832] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  6060] <... set_robust_list resumed>) = 0
[pid  5833] <... close resumed>)        = 0
[pid  5832] umount2("./4/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  6060] chdir("./6" <unfinished ...>
[pid  5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5832] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  6060] <... chdir resumed>)        = 0
[pid  5832] openat(AT_FDCWD, "./4/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid  6060] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5832] <... openat resumed>)       = 4
[pid  6060] <... prctl resumed>)        = 0
[pid  5832] newfstatat(4, "",  <unfinished ...>
[pid  6060] setpgid(0, 0 <unfinished ...>
[pid  5832] <... newfstatat resumed>{st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  6060] <... setpgid resumed>)      = 0
[pid  5832] getdents64(4, ./strace-static-x86_64: Process 6061 attached
 <unfinished ...>
[pid  6060] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5833] <... clone resumed>, child_tidptr=0x555557cd4650) = 6061
[pid  5832] <... getdents64 resumed>0x555557cdd730 /* 2 entries */, 32768) = 48
[pid  6061] set_robust_list(0x555557cd4660, 24 <unfinished ...>
[pid  6060] <... openat resumed>)       = 3
[pid  5832] getdents64(4, 0x555557cdd730 /* 0 entries */, 32768) = 0
[pid  6061] <... set_robust_list resumed>) = 0
[pid  5832] close(4 <unfinished ...>
[pid  6061] chdir("./6" <unfinished ...>
[pid  5832] <... close resumed>)        = 0
[pid  6061] <... chdir resumed>)        = 0
[pid  5832] rmdir("./4/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" <unfinished ...>
[   73.498341][ T5835] bcachefs (loop4): flushing journal and stopping allocators complete, journal seq 3342
[   73.520756][ T5835] bcachefs (loop4): unshutdown complete, journal seq 3342
[pid  6061] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  6060] write(3, "1000", 4executing program
 <unfinished ...>
[pid  6061] setpgid(0, 0 <unfinished ...>
[pid  6060] <... write resumed>)        = 4
[pid  6060] close(3 <unfinished ...>
[pid  5832] <... rmdir resumed>)        = 0
[pid  6060] <... close resumed>)        = 0
[pid  5832] getdents64(3,  <unfinished ...>
[pid  6060] symlink("/dev/binderfs", "./binderfs" <unfinished ...>
[pid  5832] <... getdents64 resumed>0x555557cd56f0 /* 0 entries */, 32768) = 0
[pid  6060] <... symlink resumed>)      = 0
[pid  5832] close(3 <unfinished ...>
[pid  6060] write(1, "executing program\n", 18 <unfinished ...>
[pid  5832] <... close resumed>)        = 0
[pid  6060] <... write resumed>)        = 18
[pid  5832] rmdir("./4" <unfinished ...>
[pid  6061] <... setpgid resumed>)      = 0
[pid  6060] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5832] <... rmdir resumed>)        = 0
[pid  6060] <... memfd_create resumed>) = 3
[pid  5832] mkdir("./5", 0777 <unfinished ...>
[pid  6061] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  6060] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5832] <... mkdir resumed>)        = 0
[pid  6060] <... mmap resumed>)         = 0x7ffa86000000
[pid  5832] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  6061] <... openat resumed>)       = 3
[pid  6061] write(3, "1000", 4 <unfinished ...>
[pid  5832] <... openat resumed>)       = 3
[pid  6061] <... write resumed>)        = 4
[pid  6061] close(3 <unfinished ...>
[pid  5832] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  6061] <... close resumed>)        = 0
[pid  5832] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  6061] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid  6061] write(1, "executing program\n", 18) = 18
[pid  6061] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5832] close(3)                    = 0
[pid  5832] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  6061] <... memfd_create resumed>) = 3
[pid  5832] <... clone resumed>, child_tidptr=0x555557cd4650) = 6062
[pid  6061] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0./strace-static-x86_64: Process 6062 attached
) = 0x7ffa86000000
[   73.565333][ T5835] bcachefs (loop4): done going read-only, filesystem not clean
[pid  6062] set_robust_list(0x555557cd4660, 24) = 0
[pid  6062] chdir("./5")                = 0
[pid  6062] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  6062] setpgid(0, 0)               = 0
[pid  6062] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
executing program
[pid  6062] write(3, "1000", 4)         = 4
[pid  6062] close(3)                    = 0
[pid  6062] symlink("/dev/binderfs", "./binderfs") = 0
[pid  6062] write(1, "executing program\n", 18) = 18
[pid  6062] memfd_create("syzkaller", 0) = 3
[pid  6062] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ffa86000000
[   73.676114][ T5835] bcachefs (loop4): shutdown complete
[pid  6059] <... write resumed>)        = 16777216
[pid  6059] munmap(0x7ffa86000000, 138412032) = 0
[pid  6059] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  6059] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  6059] close(3)                    = 0
[pid  6059] close(4)                    = 0
[pid  6059] mkdir("./file0", 0777)      = 0
[pid  6059] mount("/dev/loop0", "./file0", "bcachefs", MS_POSIXACL, "\x62\x61\x63\x6b\x67\x72\x6f\x75\x6e\xfd\xff\x63\x6f\x6d\x70\x72\x65\x33\x73\x69\x6f\x6e\x3d\x6c\x7a\x34\x2c\x72\x65\x63\x6f\x6e\x73\x74\x72\x75\x63\x74\x5f\x61\x6c\x6c\x6f\x63\x2c\x6e\x6f\x63\x6f\x77\x2c\x6e\x6f\x65\x78\x63\x6c\x2c\x62\x74\x72\x65\x65\x5f\x6e\x6f\x64\x65\x5f\x70\x72\x65\x66\x65\x74\x63\x68\x2c\x6e\x6f\x72\x65\x63\x6f\x76\x65\x72\x79\x2c\x73\x68\x61\x72\x64\x5f\x69\x6e\x6f\x64\x65"... <unfinished ...>
[   73.856506][ T6059] loop0: detected capacity change from 0 to 32768
[pid  6060] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...>
[pid  6061] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...>
[pid  6062] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
[pid  6062] munmap(0x7ffa86000000, 138412032) = 0
[pid  6062] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4
[pid  6062] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid  6060] <... write resumed>)        = 16777216
[pid  6062] <... ioctl resumed>)        = 0
[pid  6060] munmap(0x7ffa86000000, 138412032 <unfinished ...>
[pid  6062] close(3)                    = 0
[pid  6062] close(4)                    = 0
[pid  6060] <... munmap resumed>)       = 0
[pid  6062] mkdir("./file0", 0777)      = 0
[pid  6062] mount("/dev/loop1", "./file0", "bcachefs", MS_POSIXACL, "\x62\x61\x63\x6b\x67\x72\x6f\x75\x6e\xfd\xff\x63\x6f\x6d\x70\x72\x65\x33\x73\x69\x6f\x6e\x3d\x6c\x7a\x34\x2c\x72\x65\x63\x6f\x6e\x73\x74\x72\x75\x63\x74\x5f\x61\x6c\x6c\x6f\x63\x2c\x6e\x6f\x63\x6f\x77\x2c\x6e\x6f\x65\x78\x63\x6c\x2c\x62\x74\x72\x65\x65\x5f\x6e\x6f\x64\x65\x5f\x70\x72\x65\x66\x65\x74\x63\x68\x2c\x6e\x6f\x72\x65\x63\x6f\x76\x65\x72\x79\x2c\x73\x68\x61\x72\x64\x5f\x69\x6e\x6f\x64\x65"... <unfinished ...>
[pid  6060] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4
[pid  6060] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  6060] close(3)                    = 0
[pid  6060] close(4)                    = 0
[pid  6060] mkdir("./file0", 0777)      = 0
[pid  6060] mount("/dev/loop3", "./file0", "bcachefs", MS_POSIXACL, "\x62\x61\x63\x6b\x67\x72\x6f\x75\x6e\xfd\xff\x63\x6f\x6d\x70\x72\x65\x33\x73\x69\x6f\x6e\x3d\x6c\x7a\x34\x2c\x72\x65\x63\x6f\x6e\x73\x74\x72\x75\x63\x74\x5f\x61\x6c\x6c\x6f\x63\x2c\x6e\x6f\x63\x6f\x77\x2c\x6e\x6f\x65\x78\x63\x6c\x2c\x62\x74\x72\x65\x65\x5f\x6e\x6f\x64\x65\x5f\x70\x72\x65\x66\x65\x74\x63\x68\x2c\x6e\x6f\x72\x65\x63\x6f\x76\x65\x72\x79\x2c\x73\x68\x61\x72\x64\x5f\x69\x6e\x6f\x64\x65"... <unfinished ...>
[pid  6061] <... write resumed>)        = 16777216
[pid  6061] munmap(0x7ffa86000000, 138412032) = 0
[pid  6061] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4
[   74.194797][ T6062] loop1: detected capacity change from 0 to 32768
[   74.217840][ T6060] loop3: detected capacity change from 0 to 32768
[pid  6061] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  6061] close(3)                    = 0
[pid  6061] close(4)                    = 0
[pid  6061] mkdir("./file0", 0777)      = 0
[   74.262352][ T6061] loop2: detected capacity change from 0 to 32768
[   74.402268][ T6059] bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=none,compression=lz4,fix_errors=ask,norecovery,nojournal_transaction_names,noexcl,reconstruct_alloc,nocow,no_data_io
[   74.423470][ T6059] bcachefs (loop0): recovering from clean shutdown, journal seq 3338
[   74.431905][ T6059] bcachefs (loop0): Version upgrade required:
[   74.431905][ T6059] Version upgrade from 0.24: unwritten_extents to 1.7: mi_btree_bitmap incomplete
[   74.431905][ T6059] Doing incompatible version upgrade from 0.24: unwritten_extents to 1.13: inode_has_child_snapshots
[   74.431905][ T6059]   running recovery passes: check_allocations,check_alloc_info,check_lrus,check_btree_backpointers,check_backpointers_to_extents,check_extents_to_backpointers,check_alloc_to_lru_refs,bucket_gens_init,check_snapshot_trees,check_snapshots,check_subvols,check_subvol_children,delete_dead_snapshots,check_inodes,check_extents,check_indirect_extents,check_dirents,check_xattrs,check_root,check_unreachable_inodes,check_subvolume_structure,check_directory_structure,check_nlinks,set_fs_needs_rebalance
[   74.467161][ T6061] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open
[   74.513346][ T6061] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete
[   74.513808][ T6059] bcachefs (loop0): dropping and reconstructing all alloc info
[   74.541519][ T6060] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open
[   74.551180][ T6060] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete
[   74.574308][ T6062] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open
[   74.603819][ T6062] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete
[   74.652712][ T6059] bcachefs (loop0): accounting_read... done
[   74.683639][ T6059] bcachefs (loop0): alloc_read... done
[   74.695581][ T6059] bcachefs (loop0): stripes_read... done
[   74.702902][ T6059] bcachefs (loop0): snapshots_read... done
[   74.704858][ T6061] bcachefs: bch2_fs_get_tree() error: EINVAL
[pid  6061] mount("/dev/loop2", "./file0", "bcachefs", MS_POSIXACL, "\x62\x61\x63\x6b\x67\x72\x6f\x75\x6e\xfd\xff\x63\x6f\x6d\x70\x72\x65\x33\x73\x69\x6f\x6e\x3d\x6c\x7a\x34\x2c\x72\x65\x63\x6f\x6e\x73\x74\x72\x75\x63\x74\x5f\x61\x6c\x6c\x6f\x63\x2c\x6e\x6f\x63\x6f\x77\x2c\x6e\x6f\x65\x78\x63\x6c\x2c\x62\x74\x72\x65\x65\x5f\x6e\x6f\x64\x65\x5f\x70\x72\x65\x66\x65\x74\x63\x68\x2c\x6e\x6f\x72\x65\x63\x6f\x76\x65\x72\x79\x2c\x73\x68\x61\x72\x64\x5f\x69\x6e\x6f\x64\x65"...) = -1 EINVAL (Invalid argument)
[pid  6061] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  6061] ioctl(3, LOOP_CLR_FD)       = 0
[   74.709803][ T6059] bcachefs (loop0): check_allocations...
[   74.724061][ T6060] bcachefs: bch2_fs_get_tree() error: EINVAL
[pid  6061] close(3 <unfinished ...>
[pid  6060] <... mount resumed>)        = -1 EINVAL (Invalid argument)
[pid  6060] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  6060] ioctl(3, LOOP_CLR_FD)       = 0
[   74.803989][ T6059]  done
[pid  6060] close(3 <unfinished ...>
[pid  6062] <... mount resumed>)        = -1 EINVAL (Invalid argument)
[pid  6059] <... mount resumed>)        = 0
[pid  6062] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  6059] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid  6062] <... openat resumed>)       = 3
[pid  6062] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  6059] chdir("./file0" <unfinished ...>
[pid  6062] <... ioctl resumed>)        = 0
[pid  6059] <... chdir resumed>)        = 0
[pid  6062] close(3 <unfinished ...>
[pid  6059] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  6059] ioctl(4, LOOP_CLR_FD)       = 0
[   74.835721][ T6059] bcachefs (loop0): going read-write
[   74.852408][ T6062] bcachefs: bch2_fs_get_tree() error: EINVAL
[   74.863352][ T6059] bcachefs (loop0): done starting filesystem
[pid  6059] close(4)                    = 0
[pid  6059] mkdirat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000) = 0
[pid  5835] <... umount2 resumed>)      = 0
[pid  6059] exit_group(0)               = ?
[pid  6059] +++ exited with 0 +++
[pid  5835] umount2("./3/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5835] newfstatat(AT_FDCWD, "./3/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5835] umount2("./3/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5831] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6059, si_uid=0, si_status=0, si_utime=10 /* 0.10 s */, si_stime=39 /* 0.39 s */} ---
[pid  5831] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  5835] openat(AT_FDCWD, "./3/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid  5835] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5835] getdents64(4,  <unfinished ...>
[pid  5831] <... restart_syscall resumed>) = 0
[pid  5835] <... getdents64 resumed>0x555557cdd730 /* 2 entries */, 32768) = 48
[pid  5831] umount2("./4", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5835] getdents64(4,  <unfinished ...>
[pid  5831] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid  5835] <... getdents64 resumed>0x555557cdd730 /* 0 entries */, 32768) = 0
[pid  5835] close(4 <unfinished ...>
[pid  5831] <... openat resumed>)       = 3
[pid  5835] <... close resumed>)        = 0
[pid  5831] newfstatat(3, "",  <unfinished ...>
[pid  5835] rmdir("./3/file0" <unfinished ...>
[pid  5831] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5835] <... rmdir resumed>)        = 0
[pid  5831] getdents64(3, 0x555557cd56f0 /* 4 entries */, 32768) = 112
[pid  5835] getdents64(3,  <unfinished ...>
[pid  5831] umount2("./4/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5835] <... getdents64 resumed>0x555557cd56f0 /* 0 entries */, 32768) = 0
[pid  5831] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5831] newfstatat(AT_FDCWD, "./4/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5831] unlink("./4/binderfs" <unfinished ...>
[pid  5835] close(3 <unfinished ...>
[pid  5831] <... unlink resumed>)       = 0
[pid  5835] <... close resumed>)        = 0
[pid  5835] rmdir("./3")                = 0
[pid  5831] umount2("./4/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5835] mkdir("./4", 0777)          = 0
[pid  5835] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  5835] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  5835] close(3)                    = 0
[pid  5835] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555557cd4650) = 6094
./strace-static-x86_64: Process 6094 attached
[pid  6094] set_robust_list(0x555557cd4660, 24) = 0
[pid  6094] chdir("./4")                = 0
[pid  6094] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  6094] setpgid(0, 0)               = 0
[pid  6094] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  6094] write(3, "1000", 4)         = 4
[pid  6094] close(3)                    = 0
[pid  6094] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid  6094] write(1, "executing program\n", 18) = 18
[pid  6094] memfd_create("syzkaller", 0) = 3
[pid  6094] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ffa86000000
[pid  6061] <... close resumed>)        = 0
[pid  6061] mkdirat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000) = 0
[pid  6061] exit_group(0)               = ?
[pid  6061] +++ exited with 0 +++
[pid  5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6061, si_uid=0, si_status=0, si_utime=10 /* 0.10 s */, si_stime=42 /* 0.42 s */} ---
[pid  5833] umount2("./6", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid  5833] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5833] getdents64(3, 0x555557cd56f0 /* 5 entries */, 32768) = 384
[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/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./6/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] umount2("./6/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] openat(AT_FDCWD, "./6/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid  5833] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5833] getdents64(4, 0x555557cdd730 /* 2 entries */, 32768) = 48
[pid  5833] getdents64(4, 0x555557cdd730 /* 0 entries */, 32768) = 0
[pid  5833] close(4)                    = 0
[pid  5833] rmdir("./6/file0")          = 0
[pid  5833] umount2("./6/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./6/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", {st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] umount2("./6/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] openat(AT_FDCWD, "./6/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid  5833] newfstatat(4, "", {st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[   75.003139][ T5831] bcachefs (loop0): shutting down
[   75.019418][ T5831] bcachefs (loop0): going read-only
[   75.040784][ T5831] bcachefs (loop0): finished waiting for writes to stop
[pid  5833] getdents64(4, 0x555557cdd730 /* 2 entries */, 32768) = 48
[pid  5833] getdents64(4, 0x555557cdd730 /* 0 entries */, 32768) = 0
[pid  5833] close(4)                    = 0
[pid  5833] rmdir("./6/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0
[pid  5833] getdents64(3, 0x555557cd56f0 /* 0 entries */, 32768) = 0
[pid  5833] close(3)                    = 0
[pid  5833] rmdir("./6")                = 0
[pid  5833] mkdir("./7", 0777)          = 0
[pid  5833] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  5833] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  5833] close(3)                    = 0
[pid  5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6095 attached
 <unfinished ...>
[pid  6095] set_robust_list(0x555557cd4660, 24) = 0
[pid  6095] chdir("./7" <unfinished ...>
[pid  5833] <... clone resumed>, child_tidptr=0x555557cd4650) = 6095
[pid  6095] <... chdir resumed>)        = 0
[pid  6095] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  6060] <... close resumed>)        = 0
[pid  6095] <... prctl resumed>)        = 0
[pid  6095] setpgid(0, 0 <unfinished ...>
[pid  6060] mkdirat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000) = 0
[pid  6060] exit_group(0 <unfinished ...>
[pid  6095] <... setpgid resumed>)      = 0
[pid  6060] <... exit_group resumed>)   = ?
[pid  6060] +++ exited with 0 +++
[pid  5834] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6060, si_uid=0, si_status=0, si_utime=8 /* 0.08 s */, si_stime=40 /* 0.40 s */} ---
[pid  5834] umount2("./6", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5834] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid  5834] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5834] getdents64(3, 0x555557cd56f0 /* 5 entries */, 32768) = 384
[pid  5834] umount2("./6/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  6095] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5834] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5834] newfstatat(AT_FDCWD, "./6/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  6095] <... openat resumed>)       = 3
[pid  5834] unlink("./6/binderfs" <unfinished ...>
[pid  6095] write(3, "1000", 4 <unfinished ...>
[pid  5834] <... unlink resumed>)       = 0
[pid  5834] umount2("./6/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5834] newfstatat(AT_FDCWD, "./6/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5834] umount2("./6/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5834] openat(AT_FDCWD, "./6/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid  5834] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5834] getdents64(4, 0x555557cdd730 /* 2 entries */, 32768) = 48
[pid  5834] getdents64(4, 0x555557cdd730 /* 0 entries */, 32768) = 0
[pid  5834] close(4 <unfinished ...>
[pid  6095] <... write resumed>)        = 4
[pid  5834] <... close resumed>)        = 0
[pid  6095] close(3 <unfinished ...>
[pid  5834] rmdir("./6/file0")          = 0
[pid  5834] umount2("./6/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  6095] <... close resumed>)        = 0
[   75.136013][ T5831] bcachefs (loop0): flushing journal and stopping allocators, journal seq 3340
[pid  5834] newfstatat(AT_FDCWD, "./6/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", {st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5834] umount2("./6/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  6095] symlink("/dev/binderfs", "./binderfs" <unfinished ...>
[pid  5834] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5834] openat(AT_FDCWD, "./6/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid  6095] <... symlink resumed>)      = 0
executing program
[pid  6095] write(1, "executing program\n", 18 <unfinished ...>
[pid  5834] <... openat resumed>)       = 4
[pid  6095] <... write resumed>)        = 18
[pid  5834] newfstatat(4, "", {st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  6095] memfd_create("syzkaller", 0) = 3
[pid  5834] getdents64(4,  <unfinished ...>
[pid  6095] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5834] <... getdents64 resumed>0x555557cdd730 /* 2 entries */, 32768) = 48
[pid  6095] <... mmap resumed>)         = 0x7ffa86000000
[pid  5834] getdents64(4, 0x555557cdd730 /* 0 entries */, 32768) = 0
[pid  5834] close(4)                    = 0
[pid  5834] rmdir("./6/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0
[pid  5834] getdents64(3, 0x555557cd56f0 /* 0 entries */, 32768) = 0
[pid  5834] close(3)                    = 0
[pid  5834] rmdir("./6" <unfinished ...>
[pid  6062] <... close resumed>)        = 0
[pid  5834] <... rmdir resumed>)        = 0
[pid  5834] mkdir("./7", 0777)          = 0
[pid  6062] mkdirat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000) = 0
[pid  6062] exit_group(0)               = ?
[pid  6062] +++ exited with 0 +++
[pid  5834] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  5832] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6062, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=39 /* 0.39 s */} ---
[pid  5834] <... openat resumed>)       = 3
[pid  5834] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  5834] close(3)                    = 0
[pid  5834] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5832] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 6096 attached
 <unfinished ...>
[pid  5834] <... clone resumed>, child_tidptr=0x555557cd4650) = 6096
[pid  5832] <... restart_syscall resumed>) = 0
[   75.225769][ T5831] bcachefs (loop0): flushing journal and stopping allocators complete, journal seq 3341
[   75.256504][   T11] bcachefs (loop0): bch2_write_super(): fatal error  loop0: Superblock write was silently dropped! (seq 0 expected 53)
[pid  5832] umount2("./5", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5832] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid  5832] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5832] getdents64(3, 0x555557cd56f0 /* 5 entries */, 32768) = 384
[pid  5832] umount2("./5/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  6096] set_robust_list(0x555557cd4660, 24 <unfinished ...>
[pid  5832] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  6096] <... set_robust_list resumed>) = 0
[pid  5832] newfstatat(AT_FDCWD, "./5/binderfs",  <unfinished ...>
[pid  6096] chdir("./7" <unfinished ...>
[pid  5832] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  6096] <... chdir resumed>)        = 0
[pid  5832] unlink("./5/binderfs" <unfinished ...>
[pid  6096] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5832] <... unlink resumed>)       = 0
[pid  6096] setpgid(0, 0 <unfinished ...>
[pid  5832] umount2("./5/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  6096] <... setpgid resumed>)      = 0
[pid  5832] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  6096] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5832] newfstatat(AT_FDCWD, "./5/file0",  <unfinished ...>
[pid  6096] <... openat resumed>)       = 3
[pid  5832] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  6096] write(3, "1000", 4 <unfinished ...>
[pid  5832] umount2("./5/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  6096] <... write resumed>)        = 4
[pid  5832] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5832] openat(AT_FDCWD, "./5/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid  6096] close(3 <unfinished ...>
[pid  5832] <... openat resumed>)       = 4
[pid  6096] <... close resumed>)        = 0
[pid  6094] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...>
[pid  5832] newfstatat(4, "",  <unfinished ...>
[pid  6096] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5832] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5832] getdents64(4, 0x555557cdd730 /* 2 entries */, 32768) = 48
[pid  5832] getdents64(4,  <unfinished ...>
executing program
[pid  6096] write(1, "executing program\n", 18 <unfinished ...>
[pid  5832] <... getdents64 resumed>0x555557cdd730 /* 0 entries */, 32768) = 0
[pid  6096] <... write resumed>)        = 18
[pid  5832] close(4 <unfinished ...>
[pid  6096] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5832] <... close resumed>)        = 0
[   75.271738][ T5831] bcachefs (loop0): unshutdown complete, journal seq 3342
[   75.295047][   T11] bcachefs (loop0): fatal error - emergency read only
[   75.302358][   T11] ------------[ cut here ]------------
[   75.308100][   T11] kernel BUG at fs/bcachefs/journal.h:375!
[   75.325531][   T11] Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI
[   75.332507][   T11] CPU: 1 UID: 0 PID: 11 Comm: kworker/u8:0 Not tainted 6.12.0-rc6-syzkaller-00279-gde2f378f2b77 #0
[   75.343184][   T11] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
[   75.353242][   T11] Workqueue: btree_update btree_interior_update_work
[   75.359943][   T11] RIP: 0010:__bch2_trans_commit+0x9232/0x93c0
[pid  6096] <... memfd_create resumed>) = 3
[pid  5832] rmdir("./5/file0" <unfinished ...>
[pid  6096] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ffa86000000
[pid  5832] <... rmdir resumed>)        = 0
[pid  5832] umount2("./5/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[   75.366027][   T11] Code: fd 90 0f 0b e8 ff 75 78 fd 90 0f 0b e8 f7 75 78 fd 90 0f 0b e8 ef 75 78 fd 90 0f 0b e8 e7 75 78 fd 90 0f 0b e8 df 75 78 fd 90 <0f> 0b e8 d7 75 78 fd 90 0f 0b e8 cf 75 78 fd 90 0f 0b e8 c7 75 78
[   75.385655][   T11] RSP: 0018:ffffc900001076c0 EFLAGS: 00010293
[   75.391737][   T11] RAX: ffffffff841c6421 RBX: 0000000000000000 RCX: ffff88801bef3c00
[   75.399720][   T11] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[   75.407702][   T11] RBP: ffffc90000107890 R08: ffffffff841c0758 R09: 1ffff1100da894a8
[   75.415680][   T11] R10: dffffc0000000000 R11: ffffed100da894a9 R12: ffff88806d400000
[   75.423663][   T11] R13: ffff88806d44a500 R14: 0000000000000044 R15: ffff8880348400d0
[   75.431650][   T11] FS:  0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
[   75.440571][   T11] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   75.447144][   T11] CR2: 00007ffa8641a000 CR3: 0000000078654000 CR4: 00000000003526f0
[   75.455106][   T11] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   75.463062][   T11] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   75.471022][   T11] Call Trace:
[   75.474288][   T11]  <TASK>
[   75.477209][   T11]  ? __die_body+0x5f/0xb0
[   75.481532][   T11]  ? die+0x9e/0xc0
[   75.485241][   T11]  ? do_trap+0x15a/0x3a0
[   75.489478][   T11]  ? __bch2_trans_commit+0x9232/0x93c0
[   75.494930][   T11]  ? do_error_trap+0x1dc/0x2c0
[   75.499683][   T11]  ? __bch2_trans_commit+0x9232/0x93c0
[   75.505135][   T11]  ? __pfx_do_error_trap+0x10/0x10
[   75.510239][   T11]  ? report_bug+0x3e8/0x500
[   75.514744][   T11]  ? handle_invalid_op+0x34/0x40
[   75.519671][   T11]  ? __bch2_trans_commit+0x9232/0x93c0
[   75.525146][   T11]  ? exc_invalid_op+0x38/0x50
[   75.529835][   T11]  ? asm_exc_invalid_op+0x1a/0x20
[   75.534875][   T11]  ? __bch2_trans_commit+0x3568/0x93c0
[   75.540358][   T11]  ? __bch2_trans_commit+0x9231/0x93c0
[   75.545815][   T11]  ? __bch2_trans_commit+0x9232/0x93c0
[   75.551280][   T11]  ? __pfx___bch2_trans_commit+0x10/0x10
[   75.556915][   T11]  ? bch2_dev_btree_bitmap_marked+0x2f/0xda0
[   75.562895][   T11]  ? __bch2_trans_jset_entry_alloc+0x2c7/0x4b0
[   75.569044][   T11]  ? btree_interior_update_work+0x117a/0x2b10
[   75.575106][   T11]  btree_interior_update_work+0x1492/0x2b10
[   75.581002][   T11]  ? __pfx_btree_interior_update_work+0x10/0x10
[   75.587247][   T11]  ? __pfx_lock_acquire+0x10/0x10
[   75.592268][   T11]  ? lockdep_hardirqs_on_prepare+0x43d/0x780
[   75.598248][   T11]  ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10
[   75.604573][   T11]  ? process_scheduled_works+0x976/0x1850
[   75.610291][   T11]  process_scheduled_works+0xa63/0x1850
[   75.615840][   T11]  ? __pfx_process_scheduled_works+0x10/0x10
[   75.621820][   T11]  ? assign_work+0x364/0x3d0
[   75.626414][   T11]  worker_thread+0x870/0xd30
[   75.631006][   T11]  ? __kthread_parkme+0x169/0x1d0
[   75.636026][   T11]  ? __pfx_worker_thread+0x10/0x10
[   75.641128][   T11]  kthread+0x2f0/0x390
[   75.645193][   T11]  ? __pfx_worker_thread+0x10/0x10
[   75.650294][   T11]  ? __pfx_kthread+0x10/0x10
[   75.654871][   T11]  ret_from_fork+0x4b/0x80
[   75.659284][   T11]  ? __pfx_kthread+0x10/0x10
[   75.663860][   T11]  ret_from_fork_asm+0x1a/0x30
[   75.668625][   T11]  </TASK>
[   75.671632][   T11] Modules linked in:
[   75.675721][   T11] ---[ end trace 0000000000000000 ]---
executing program
[pid  5832] newfstatat(AT_FDCWD, "./5/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", {st_mode=S_IFDIR|000, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  6094] <... write resumed>)        = 16777216
[pid  5832] umount2("./5/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  6094] munmap(0x7ffa86000000, 138412032 <unfinished ...>
[pid  5832] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5832] openat(AT_FDCWD, "./5/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid  6094] <... munmap resumed>)       = 0
[pid  5832] <... openat resumed>)       = 4
[pid  5832] newfstatat(4, "", {st_mode=S_IFDIR|000, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5832] getdents64(4, 0x555557cdd730 /* 2 entries */, 32768) = 48
[pid  5832] getdents64(4, 0x555557cdd730 /* 0 entries */, 32768) = 0
[pid  5832] close(4)                    = 0
[pid  5832] rmdir("./5/file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0
[pid  6094] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  5832] getdents64(3, 0x555557cd56f0 /* 0 entries */, 32768) = 0
[pid  5832] close(3)                    = 0
[pid  5832] rmdir("./5")                = 0
[pid  5832] mkdir("./6", 0777)          = 0
[pid  5832] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  5832] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  5832] close(3)                    = 0
[pid  5832] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  6094] <... openat resumed>)       = 4
[pid  5832] <... clone resumed>, child_tidptr=0x555557cd4650) = 6097
[pid  6096] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...>
[pid  6094] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  6094] close(3)                    = 0
[pid  6094] close(4)                    = 0
[pid  6094] mkdir("./file0", 0777)      = 0
./strace-static-x86_64: Process 6097 attached
[pid  6094] mount("/dev/loop4", "./file0", "bcachefs", MS_POSIXACL, "\x62\x61\x63\x6b\x67\x72\x6f\x75\x6e\xfd\xff\x63\x6f\x6d\x70\x72\x65\x33\x73\x69\x6f\x6e\x3d\x6c\x7a\x34\x2c\x72\x65\x63\x6f\x6e\x73\x74\x72\x75\x63\x74\x5f\x61\x6c\x6c\x6f\x63\x2c\x6e\x6f\x63\x6f\x77\x2c\x6e\x6f\x65\x78\x63\x6c\x2c\x62\x74\x72\x65\x65\x5f\x6e\x6f\x64\x65\x5f\x70\x72\x65\x66\x65\x74\x63\x68\x2c\x6e\x6f\x72\x65\x63\x6f\x76\x65\x72\x79\x2c\x73\x68\x61\x72\x64\x5f\x69\x6e\x6f\x64\x65"... <unfinished ...>
[pid  6097] set_robust_list(0x555557cd4660, 24) = 0
[pid  6097] chdir("./6")                = 0
[pid  6097] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  6097] setpgid(0, 0)               = 0
[pid  6097] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  6097] write(3, "1000", 4)         = 4
[pid  6097] close(3)                    = 0
[pid  6097] symlink("/dev/binderfs", "./binderfs") = 0
[pid  6097] write(1, "executing program\n", 18) = 18
[pid  6097] memfd_create("syzkaller", 0) = 3
[pid  6097] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ffa86000000
[   75.730046][ T6094] loop4: detected capacity change from 0 to 32768
[   75.787484][   T11] RIP: 0010:__bch2_trans_commit+0x9232/0x93c0
[   75.794759][   T11] Code: fd 90 0f 0b e8 ff 75 78 fd 90 0f 0b e8 f7 75 78 fd 90 0f 0b e8 ef 75 78 fd 90 0f 0b e8 e7 75 78 fd 90 0f 0b e8 df 75 78 fd 90 <0f> 0b e8 d7 75 78 fd 90 0f 0b e8 cf 75 78 fd 90 0f 0b e8 c7 75 78
[   75.825239][   T11] RSP: 0018:ffffc900001076c0 EFLAGS: 00010293
[   75.832284][   T11] RAX: ffffffff841c6421 RBX: 0000000000000000 RCX: ffff88801bef3c00
[   75.840540][   T11] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[   75.850048][   T11] RBP: ffffc90000107890 R08: ffffffff841c0758 R09: 1ffff1100da894a8
[   75.858180][   T11] R10: dffffc0000000000 R11: ffffed100da894a9 R12: ffff88806d400000
[   75.869147][   T11] R13: ffff88806d44a500 R14: 0000000000000044 R15: ffff8880348400d0
[   75.879812][   T11] FS:  0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
[   75.899988][   T11] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   75.907077][ T6094] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): filesystem UUID already open
[   75.927395][   T11] CR2: 00007ffa86392000 CR3: 0000000078654000 CR4: 00000000003526f0
[pid  6095] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...>
[pid  6096] <... write resumed>)        = 16777216
[pid  6096] munmap(0x7ffa86000000, 138412032) = 0
[pid  6097] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...>
[pid  6096] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4
[   75.948716][ T6094] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): shutdown complete
[   75.959347][   T11] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   75.988595][   T11] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   76.005062][ T6096] loop3: detected capacity change from 0 to 32768
[   76.011350][   T11] Kernel panic - not syncing: Fatal exception
[   76.011604][   T11] Kernel Offset: disabled