./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2068753891

<...>
Warning: Permanently added '10.128.0.187' (ED25519) to the list of known hosts.
execve("./syz-executor2068753891", ["./syz-executor2068753891"], 0x7ffeefd738c0 /* 10 vars */) = 0
brk(NULL)                               = 0x555575691000
brk(0x555575691d40)                     = 0x555575691d40
arch_prctl(ARCH_SET_FS, 0x5555756913c0) = 0
set_tid_address(0x555575691690)         = 5832
set_robust_list(0x5555756916a0, 24)     = 0
rseq(0x555575691ce0, 0x20, 0, 0x53053053) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor2068753891", 4096) = 28
getrandom("\x6f\x9e\xee\xcb\x9d\xe9\xdd\xf3", 8, GRND_NONBLOCK) = 8
brk(NULL)                               = 0x555575691d40
brk(0x5555756b2d40)                     = 0x5555756b2d40
brk(0x5555756b3000)                     = 0x5555756b3000
mprotect(0x7fb41c7b0000, 16384, PROT_READ) = 0
mmap(0x1ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffffffff000
mmap(0x200000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200000000000
mmap(0x200001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200001000000
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5833 attached
 <unfinished ...>
[pid  5833] set_robust_list(0x5555756916a0, 24 <unfinished ...>
[pid  5832] <... clone resumed>, child_tidptr=0x555575691690) = 5833
[pid  5833] <... set_robust_list resumed>) = 0
[pid  5832] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5835 attached
 <unfinished ...>
[pid  5833] mkdir("./syzkaller.nMuH0m", 0700 <unfinished ...>
[pid  5832] <... clone resumed>, child_tidptr=0x555575691690) = 5835
[pid  5835] set_robust_list(0x5555756916a0, 24) = 0
[pid  5832] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5835] mkdir("./syzkaller.RTDDU1", 0700 <unfinished ...>
[pid  5833] <... mkdir resumed>)        = 0
./strace-static-x86_64: Process 5836 attached
[pid  5835] <... mkdir resumed>)        = 0
[pid  5832] <... clone resumed>, child_tidptr=0x555575691690) = 5836
[pid  5833] chmod("./syzkaller.nMuH0m", 0777) = 0
[pid  5832] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5836] set_robust_list(0x5555756916a0, 24 <unfinished ...>
[pid  5835] chmod("./syzkaller.RTDDU1", 0777 <unfinished ...>
[pid  5833] chdir("./syzkaller.nMuH0m" <unfinished ...>
[pid  5836] <... set_robust_list resumed>) = 0
[pid  5833] <... chdir resumed>)        = 0
[pid  5835] <... chmod resumed>)        = 0
[pid  5836] mkdir("./syzkaller.23h31B", 0700 <unfinished ...>
[pid  5835] chdir("./syzkaller.RTDDU1" <unfinished ...>
[pid  5833] mkdir("./0", 0777 <unfinished ...>
[pid  5835] <... chdir resumed>)        = 0
./strace-static-x86_64: Process 5837 attached
[pid  5836] <... mkdir resumed>)        = 0
[pid  5835] mkdir("./0", 0777 <unfinished ...>
[pid  5833] <... mkdir resumed>)        = 0
[pid  5832] <... clone resumed>, child_tidptr=0x555575691690) = 5837
[pid  5837] set_robust_list(0x5555756916a0, 24 <unfinished ...>
[pid  5836] chmod("./syzkaller.23h31B", 0777 <unfinished ...>
[pid  5832] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5836] <... chmod resumed>)        = 0
[pid  5835] <... mkdir resumed>)        = 0
[pid  5833] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  5837] <... set_robust_list resumed>) = 0
[pid  5835] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  5833] <... openat resumed>)       = 3
[pid  5833] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 5838 attached
 <unfinished ...>
[pid  5837] mkdir("./syzkaller.IiOoTN", 0700 <unfinished ...>
[pid  5836] chdir("./syzkaller.23h31B" <unfinished ...>
[pid  5833] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  5836] <... chdir resumed>)        = 0
[pid  5838] set_robust_list(0x5555756916a0, 24 <unfinished ...>
[pid  5835] <... openat resumed>)       = 3
[pid  5833] close(3 <unfinished ...>
[pid  5832] <... clone resumed>, child_tidptr=0x555575691690) = 5838
[pid  5838] <... set_robust_list resumed>) = 0
[pid  5835] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5838] mkdir("./syzkaller.6Xolct", 0700 <unfinished ...>
[pid  5835] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  5837] <... mkdir resumed>)        = 0
[pid  5838] <... mkdir resumed>)        = 0
[pid  5836] mkdir("./0", 0777 <unfinished ...>
[pid  5835] close(3 <unfinished ...>
[pid  5833] <... close resumed>)        = 0
[pid  5837] chmod("./syzkaller.IiOoTN", 0777 <unfinished ...>
[pid  5838] chmod("./syzkaller.6Xolct", 0777 <unfinished ...>
[pid  5837] <... chmod resumed>)        = 0
[pid  5836] <... mkdir resumed>)        = 0
[pid  5835] <... close resumed>)        = 0
[pid  5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5837] chdir("./syzkaller.IiOoTN" <unfinished ...>
[pid  5838] <... chmod resumed>)        = 0
[pid  5835] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5838] chdir("./syzkaller.6Xolct"./strace-static-x86_64: Process 5840 attached
./strace-static-x86_64: Process 5839 attached
 <unfinished ...>
[pid  5837] <... chdir resumed>)        = 0
[pid  5836] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  5840] set_robust_list(0x5555756916a0, 24 <unfinished ...>
[pid  5839] set_robust_list(0x5555756916a0, 24 <unfinished ...>
[pid  5838] <... chdir resumed>)        = 0
[pid  5837] mkdir("./0", 0777 <unfinished ...>
[pid  5836] <... openat resumed>)       = 3
[pid  5839] <... set_robust_list resumed>) = 0
[pid  5837] <... mkdir resumed>)        = 0
[pid  5833] <... clone resumed>, child_tidptr=0x555575691690) = 5839
[pid  5840] <... set_robust_list resumed>) = 0
[pid  5839] chdir("./0" <unfinished ...>
[pid  5838] mkdir("./0", 0777 <unfinished ...>
[pid  5836] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5835] <... clone resumed>, child_tidptr=0x555575691690) = 5840
[pid  5840] chdir("./0" <unfinished ...>
[pid  5839] <... chdir resumed>)        = 0
[pid  5836] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  5839] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5837] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  5840] <... chdir resumed>)        = 0
[pid  5839] <... prctl resumed>)        = 0
[pid  5838] <... mkdir resumed>)        = 0
[pid  5837] <... openat resumed>)       = 3
[pid  5840] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5836] close(3)                    = 0
[pid  5839] setpgid(0, 0)               = 0
[pid  5836] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5840] <... prctl resumed>)        = 0
[pid  5839] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 5842 attached
 <unfinished ...>
[pid  5837] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  5837] close(3 <unfinished ...>
[pid  5839] <... openat resumed>)       = 3
[pid  5837] <... close resumed>)        = 0
[pid  5842] set_robust_list(0x5555756916a0, 24 <unfinished ...>
[pid  5837] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5843 attached
 <unfinished ...>
[pid  5842] <... set_robust_list resumed>) = 0
[pid  5839] write(3, "1000", 4 <unfinished ...>
[pid  5842] chdir("./0" <unfinished ...>
[pid  5839] <... write resumed>)        = 4
[pid  5839] close(3 <unfinished ...>
[pid  5836] <... clone resumed>, child_tidptr=0x555575691690) = 5842
[pid  5842] <... chdir resumed>)        = 0
[pid  5839] <... close resumed>)        = 0
[pid  5843] set_robust_list(0x5555756916a0, 24 <unfinished ...>
[pid  5842] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5839] symlink("/dev/binderfs", "./binderfs" <unfinished ...>
[pid  5843] <... set_robust_list resumed>) = 0
[pid  5842] <... prctl resumed>)        = 0
[pid  5839] <... symlink resumed>)      = 0
[pid  5843] chdir("./0" <unfinished ...>
[pid  5842] setpgid(0, 0 <unfinished ...>
[pid  5837] <... clone resumed>, child_tidptr=0x555575691690) = 5843
[pid  5842] <... setpgid resumed>)      = 0
[pid  5842] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5843] <... chdir resumed>)        = 0
[pid  5840] setpgid(0, 0 <unfinished ...>
[pid  5839] write(1, "executing program\n", 18 <unfinished ...>
executing program
[pid  5838] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  5843] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5842] <... openat resumed>)       = 3
[pid  5840] <... setpgid resumed>)      = 0
[pid  5839] <... write resumed>)        = 18
[pid  5838] <... openat resumed>)       = 3
[pid  5843] <... prctl resumed>)        = 0
[pid  5843] setpgid(0, 0 <unfinished ...>
[pid  5840] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5838] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5843] <... setpgid resumed>)      = 0
[pid  5838] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  5843] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5840] <... openat resumed>)       = 3
[pid  5838] close(3 <unfinished ...>
[pid  5840] write(3, "1000", 4 <unfinished ...>
[pid  5838] <... close resumed>)        = 0
[pid  5840] <... write resumed>)        = 4
[pid  5839] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5838] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5839] <... futex resumed>)        = 0
[pid  5839] rt_sigaction(SIGRT_1, {sa_handler=0x7fb41c745060, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb41c736210},  <unfinished ...>
[pid  5842] write(3, "1000", 4 <unfinished ...>
[pid  5839] <... rt_sigaction resumed>NULL, 8) = 0
[pid  5842] <... write resumed>)        = 4
[pid  5839] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1],  <unfinished ...>
[pid  5843] <... openat resumed>)       = 3
[pid  5842] close(3 <unfinished ...>
[pid  5839] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5839] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid  5840] close(3 <unfinished ...>
[pid  5839] <... mmap resumed>)         = 0x7fb41c6b3000
[pid  5843] write(3, "1000", 4 <unfinished ...>
[pid  5840] <... close resumed>)        = 0
[pid  5839] mprotect(0x7fb41c6b4000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid  5840] symlink("/dev/binderfs", "./binderfs" <unfinished ...>
[pid  5838] <... clone resumed>, child_tidptr=0x555575691690) = 5844
./strace-static-x86_64: Process 5844 attached
[pid  5843] <... write resumed>)        = 4
[pid  5842] <... close resumed>)        = 0
[pid  5839] <... mprotect resumed>)     = 0
[pid  5843] close(3 <unfinished ...>
[pid  5842] symlink("/dev/binderfs", "./binderfs" <unfinished ...>
[pid  5840] <... symlink resumed>)      = 0
[pid  5839] rt_sigprocmask(SIG_BLOCK, ~[],  <unfinished ...>
[pid  5844] set_robust_list(0x5555756916a0, 24 <unfinished ...>
[pid  5843] <... close resumed>)        = 0
[pid  5842] <... symlink resumed>)      = 0
[pid  5840] write(1, "executing program\n", 18 <unfinished ...>
[pid  5839] <... rt_sigprocmask resumed>[], 8) = 0
executing program
[pid  5844] <... set_robust_list resumed>) = 0
[pid  5843] symlink("/dev/binderfs", "./binderfs" <unfinished ...>
[pid  5842] write(1, "executing program\n", 18 <unfinished ...>
[pid  5840] <... write resumed>)        = 18
[pid  5839] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb41c6d3990, parent_tid=0x7fb41c6d3990, exit_signal=0, stack=0x7fb41c6b3000, stack_size=0x20300, tls=0x7fb41c6d36c0} <unfinished ...>
[pid  5840] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000executing program
 <unfinished ...>
[pid  5844] chdir("./0" <unfinished ...>
[pid  5843] <... symlink resumed>)      = 0
[pid  5842] <... write resumed>)        = 18
[pid  5840] <... futex resumed>)        = 0
[pid  5842] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
./strace-static-x86_64: Process 5845 attached
[pid  5842] rt_sigaction(SIGRT_1, {sa_handler=0x7fb41c745060, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb41c736210},  <unfinished ...>
[pid  5840] rt_sigaction(SIGRT_1, {sa_handler=0x7fb41c745060, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb41c736210},  <unfinished ...>
[pid  5845] rseq(0x7fb41c6d3fe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid  5843] write(1, "executing program\n", 18executing program
 <unfinished ...>
[pid  5842] <... rt_sigaction resumed>NULL, 8) = 0
[pid  5840] <... rt_sigaction resumed>NULL, 8) = 0
[pid  5839] <... clone3 resumed> => {parent_tid=[5845]}, 88) = 5845
[pid  5845] <... rseq resumed>)         = 0
[pid  5844] <... chdir resumed>)        = 0
[pid  5843] <... write resumed>)        = 18
[pid  5842] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1],  <unfinished ...>
[pid  5840] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1],  <unfinished ...>
[pid  5845] set_robust_list(0x7fb41c6d39a0, 24 <unfinished ...>
[pid  5844] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5843] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5842] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5840] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5839] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5845] <... set_robust_list resumed>) = 0
[pid  5844] <... prctl resumed>)        = 0
[pid  5843] <... futex resumed>)        = 0
[pid  5842] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid  5840] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid  5839] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5845] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5844] setpgid(0, 0 <unfinished ...>
[pid  5843] rt_sigaction(SIGRT_1, {sa_handler=0x7fb41c745060, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb41c736210},  <unfinished ...>
[pid  5842] <... mmap resumed>)         = 0x7fb41c6b3000
[pid  5839] futex(0x7fb41c7b66a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5844] <... setpgid resumed>)      = 0
[pid  5843] <... rt_sigaction resumed>NULL, 8) = 0
[pid  5842] mprotect(0x7fb41c6b4000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid  5840] <... mmap resumed>)         = 0x7fb41c6b3000
[pid  5839] <... futex resumed>)        = 0
[pid  5845] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5844] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5843] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1],  <unfinished ...>
[pid  5842] <... mprotect resumed>)     = 0
[pid  5839] futex(0x7fb41c7b66ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid  5845] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5844] <... openat resumed>)       = 3
[pid  5843] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5842] rt_sigprocmask(SIG_BLOCK, ~[],  <unfinished ...>
[pid  5845] <... memfd_create resumed>) = 3
[pid  5844] write(3, "1000", 4 <unfinished ...>
[pid  5843] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid  5842] <... rt_sigprocmask resumed>[], 8) = 0
[pid  5840] mprotect(0x7fb41c6b4000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid  5845] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5844] <... write resumed>)        = 4
[pid  5843] <... mmap resumed>)         = 0x7fb41c6b3000
[pid  5842] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb41c6d3990, parent_tid=0x7fb41c6d3990, exit_signal=0, stack=0x7fb41c6b3000, stack_size=0x20300, tls=0x7fb41c6d36c0}./strace-static-x86_64: Process 5846 attached
 <unfinished ...>
[pid  5845] <... mmap resumed>)         = 0x7fb414200000
[pid  5844] close(3 <unfinished ...>
[pid  5843] mprotect(0x7fb41c6b4000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid  5840] <... mprotect resumed>)     = 0
[pid  5846] rseq(0x7fb41c6d3fe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid  5844] <... close resumed>)        = 0
[pid  5843] <... mprotect resumed>)     = 0
[pid  5842] <... clone3 resumed> => {parent_tid=[5846]}, 88) = 5846
[pid  5846] <... rseq resumed>)         = 0
[pid  5844] symlink("/dev/binderfs", "./binderfs" <unfinished ...>
[pid  5843] rt_sigprocmask(SIG_BLOCK, ~[],  <unfinished ...>
[pid  5842] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5846] set_robust_list(0x7fb41c6d39a0, 24 <unfinished ...>
[pid  5844] <... symlink resumed>)      = 0
[pid  5843] <... rt_sigprocmask resumed>[], 8) = 0
[pid  5842] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5840] rt_sigprocmask(SIG_BLOCK, ~[],  <unfinished ...>
[pid  5846] <... set_robust_list resumed>) = 0
[pid  5843] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb41c6d3990, parent_tid=0x7fb41c6d3990, exit_signal=0, stack=0x7fb41c6b3000, stack_size=0x20300, tls=0x7fb41c6d36c0} <unfinished ...>
[pid  5846] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5842] futex(0x7fb41c7b66a8, FUTEX_WAKE_PRIVATE, 1000000executing program
./strace-static-x86_64: Process 5847 attached
 <unfinished ...>
[pid  5846] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5844] write(1, "executing program\n", 18 <unfinished ...>
[pid  5840] <... rt_sigprocmask resumed>[], 8) = 0
[pid  5846] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5844] <... write resumed>)        = 18
[pid  5843] <... clone3 resumed> => {parent_tid=[5847]}, 88) = 5847
[pid  5842] <... futex resumed>)        = 0
[pid  5840] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb41c6d3990, parent_tid=0x7fb41c6d3990, exit_signal=0, stack=0x7fb41c6b3000, stack_size=0x20300, tls=0x7fb41c6d36c0} <unfinished ...>
[pid  5842] futex(0x7fb41c7b66ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid  5844] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5843] rt_sigprocmask(SIG_SETMASK, [], ./strace-static-x86_64: Process 5848 attached
NULL, 8) = 0
[pid  5844] <... futex resumed>)        = 0
[pid  5843] futex(0x7fb41c7b66a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5844] rt_sigaction(SIGRT_1, {sa_handler=0x7fb41c745060, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb41c736210},  <unfinished ...>
[pid  5843] <... futex resumed>)        = 0
[pid  5846] <... memfd_create resumed>) = 3
[pid  5844] <... rt_sigaction resumed>NULL, 8) = 0
[pid  5843] futex(0x7fb41c7b66ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid  5846] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5844] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1],  <unfinished ...>
[pid  5846] <... mmap resumed>)         = 0x7fb414200000
[pid  5844] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5844] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid  5848] rseq(0x7fb41c6d3fe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid  5847] rseq(0x7fb41c6d3fe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid  5844] <... mmap resumed>)         = 0x7fb41c6b3000
[pid  5840] <... clone3 resumed> => {parent_tid=[5848]}, 88) = 5848
[pid  5848] <... rseq resumed>)         = 0
[pid  5847] <... rseq resumed>)         = 0
[pid  5848] set_robust_list(0x7fb41c6d39a0, 24 <unfinished ...>
[pid  5840] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5847] set_robust_list(0x7fb41c6d39a0, 24 <unfinished ...>
[pid  5848] <... set_robust_list resumed>) = 0
[pid  5847] <... set_robust_list resumed>) = 0
[pid  5840] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5840] futex(0x7fb41c7b66a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5848] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5840] <... futex resumed>)        = 0
[pid  5848] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5844] mprotect(0x7fb41c6b4000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5848] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5844] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5844] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb41c6d3990, parent_tid=0x7fb41c6d3990, exit_signal=0, stack=0x7fb41c6b3000, stack_size=0x20300, tls=0x7fb41c6d36c0}./strace-static-x86_64: Process 5849 attached
 <unfinished ...>
[pid  5847] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid  5840] futex(0x7fb41c7b66ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid  5848] <... memfd_create resumed>) = 3
[pid  5844] <... clone3 resumed> => {parent_tid=[5849]}, 88) = 5849
[pid  5844] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid  5844] futex(0x7fb41c7b66a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5849] rseq(0x7fb41c6d3fe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid  5844] <... futex resumed>)        = 0
[pid  5849] <... rseq resumed>)         = 0
[pid  5844] futex(0x7fb41c7b66ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid  5849] set_robust_list(0x7fb41c6d39a0, 24 <unfinished ...>
[pid  5848] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5847] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5849] <... set_robust_list resumed>) = 0
[pid  5848] <... mmap resumed>)         = 0x7fb414200000
[pid  5849] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5847] <... memfd_create resumed>) = 3
[pid  5849] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5849] memfd_create("syzkaller", 0) = 3
[pid  5849] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb414200000
[pid  5847] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb414200000
[pid  5848] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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  5846] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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  5849] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...>
[pid  5847] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...>
[pid  5845] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...>
[pid  5846] <... write resumed>)        = 16777216
[pid  5846] munmap(0x7fb414200000, 138412032) = 0
[pid  5846] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4
[pid  5846] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  5847] <... write resumed>)        = 16777216
[pid  5849] <... write resumed>)        = 16777216
[pid  5848] <... write resumed>)        = 16777216
[pid  5847] munmap(0x7fb414200000, 138412032 <unfinished ...>
[pid  5846] close(3 <unfinished ...>
[pid  5845] <... write resumed>)        = 16777216
[pid  5846] <... close resumed>)        = 0
[pid  5849] munmap(0x7fb414200000, 138412032 <unfinished ...>
[pid  5848] munmap(0x7fb414200000, 138412032 <unfinished ...>
[pid  5846] close(4 <unfinished ...>
[pid  5845] munmap(0x7fb414200000, 138412032 <unfinished ...>
[pid  5846] <... close resumed>)        = 0
[pid  5846] mkdir("./file0", 0777)      = 0
[   90.788267][ T5846] loop2: detected capacity change from 0 to 32768
[   90.834877][ T5846] =======================================================
[   90.834877][ T5846] WARNING: The mand mount option has been deprecated and
[   90.834877][ T5846]          and is ignored by this kernel. Remove the mand
[   90.834877][ T5846]          option from the mount to silence this warning.
[   90.834877][ T5846] =======================================================
[pid  5846] mount("/dev/loop2", "./file0", "bcachefs", MS_RDONLY|MS_SYNCHRONOUS|MS_MANDLOCK|MS_POSIXACL|MS_STRICTATIME, "errors=fix_safe,version_upgrade=none,noexcl,shard_inode_numbers," <unfinished ...>
[pid  5849] <... munmap resumed>)       = 0
[pid  5848] <... munmap resumed>)       = 0
[pid  5847] <... munmap resumed>)       = 0
[pid  5849] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  5845] <... munmap resumed>)       = 0
[pid  5849] <... openat resumed>)       = 4
[pid  5847] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  5849] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid  5847] <... openat resumed>)       = 4
[pid  5847] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid  5845] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  5849] <... ioctl resumed>)        = 0
[pid  5849] close(3 <unfinished ...>
[pid  5848] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  5849] <... close resumed>)        = 0
[pid  5848] <... openat resumed>)       = 4
[pid  5849] close(4)                    = 0
[pid  5848] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid  5849] mkdir("./file0", 0777 <unfinished ...>
[pid  5845] <... openat resumed>)       = 4
[pid  5845] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid  5849] <... mkdir resumed>)        = 0
[pid  5847] <... ioctl resumed>)        = 0
[pid  5847] close(3)                    = 0
[pid  5847] close(4)                    = 0
[pid  5847] mkdir("./file0", 0777 <unfinished ...>
[pid  5848] <... ioctl resumed>)        = 0
[pid  5848] close(3)                    = 0
[pid  5848] close(4)                    = 0
[pid  5848] mkdir("./file0", 0777)      = 0
[pid  5848] mount("/dev/loop1", "./file0", "bcachefs", MS_RDONLY|MS_SYNCHRONOUS|MS_MANDLOCK|MS_POSIXACL|MS_STRICTATIME, "errors=fix_safe,version_upgrade=none,noexcl,shard_inode_numbers," <unfinished ...>
[pid  5847] <... mkdir resumed>)        = 0
[pid  5845] <... ioctl resumed>)        = 0
[pid  5849] mount("/dev/loop4", "./file0", "bcachefs", MS_RDONLY|MS_SYNCHRONOUS|MS_MANDLOCK|MS_POSIXACL|MS_STRICTATIME, "errors=fix_safe,version_upgrade=none,noexcl,shard_inode_numbers," <unfinished ...>
[pid  5847] mount("/dev/loop3", "./file0", "bcachefs", MS_RDONLY|MS_SYNCHRONOUS|MS_MANDLOCK|MS_POSIXACL|MS_STRICTATIME, "errors=fix_safe,version_upgrade=none,noexcl,shard_inode_numbers," <unfinished ...>
[pid  5845] close(3)                    = 0
[pid  5845] close(4)                    = 0
[pid  5845] mkdir("./file0", 0777)      = 0
[   90.889592][ T5849] loop4: detected capacity change from 0 to 32768
[   90.889941][ T5847] loop3: detected capacity change from 0 to 32768
[   90.906401][ T5848] loop1: detected capacity change from 0 to 32768
[   90.914412][ T5845] loop0: detected capacity change from 0 to 32768
[   91.136816][ T5846] bcachefs (loop2): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=none,compression=lz4,nojournal_transaction_names,noexcl,read_only,version_upgrade=none
[   91.136845][ T5846]   allowing incompatible features above 0.0: (unknown version)
[   91.136858][ T5846]   features: lz4,new_siphash,inline_data,new_extent_overwrite,btree_ptr_v2,new_varint,journal_no_flush,alloc_v2,extents_across_btree_nodes
[   91.203143][ T5848] bcachefs (loop1): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=none,compression=lz4,nojournal_transaction_names,noexcl,read_only,version_upgrade=none
[pid  5845] mount("/dev/loop0", "./file0", "bcachefs", MS_RDONLY|MS_SYNCHRONOUS|MS_MANDLOCK|MS_POSIXACL|MS_STRICTATIME, "errors=fix_safe,version_upgrade=none,noexcl,shard_inode_numbers," <unfinished ...>
[pid  5848] <... mount resumed>)        = 0
[pid  5848] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid  5848] chdir("./file0")            = 0
[pid  5848] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4
[pid  5848] ioctl(4, LOOP_CLR_FD)       = 0
[pid  5848] close(4)                    = 0
[pid  5848] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5848] futex(0x7fb41c7b66a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5840] <... futex resumed>)        = 0
[pid  5840] futex(0x7fb41c7b66a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5848] <... futex resumed>)        = 0
[pid  5840] <... futex resumed>)        = 1
[pid  5848] mount(NULL, ".", NULL, MS_NODEV|MS_REMOUNT|MS_MOVE|MS_POSIXACL|MS_LAZYTIME, NULL <unfinished ...>
[   91.203171][ T5848]   allowing incompatible features above 0.0: (unknown version)
[   91.203184][ T5848]   features: lz4,new_siphash,inline_data,new_extent_overwrite,btree_ptr_v2,new_varint,journal_no_flush,alloc_v2,extents_across_btree_nodes
[pid  5840] futex(0x7fb41c7b66ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[   91.203215][ T5848] bcachefs (loop1): Using encoding defined by superblock: utf8-12.1.0
[   91.203578][ T5848] bcachefs (loop1): recovering from clean shutdown, journal seq 13
[   91.278837][ T5849] bcachefs (loop4): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=none,compression=lz4,nojournal_transaction_names,noexcl,read_only,version_upgrade=none
[pid  5848] <... mount resumed>)        = 0
[   91.278866][ T5849]   allowing incompatible features above 0.0: (unknown version)
[   91.278880][ T5849]   features: lz4,new_siphash,inline_data,new_extent_overwrite,btree_ptr_v2,new_varint,journal_no_flush,alloc_v2,extents_across_btree_nodes
[   91.278911][ T5849] bcachefs (loop4): Using encoding defined by superblock: utf8-12.1.0
[   91.279048][ T5849] bcachefs (loop4): recovering from clean shutdown, journal seq 13
[   91.292033][ T5848] bcachefs (loop1): accounting_read... done
[   91.293906][ T5848] bcachefs (loop1): alloc_read... done
[   91.295468][ T5848] bcachefs (loop1): snapshots_read... done
[   91.336765][ T5848] bcachefs (loop1): journal_replay... done
[   91.339007][ T5848] bcachefs (loop1): resume_logged_ops... done
[   91.340036][ T5848] bcachefs (loop1): delete_dead_inodes...
[   91.351424][ T5845] bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=none,compression=lz4,nojournal_transaction_names,noexcl,read_only,version_upgrade=none
[   91.351448][ T5845]   allowing incompatible features above 0.0: (unknown version)
[pid  5845] <... mount resumed>)        = 0
[   91.351461][ T5845]   features: lz4,new_siphash,inline_data,new_extent_overwrite,btree_ptr_v2,new_varint,journal_no_flush,alloc_v2,extents_across_btree_nodes
[   91.351489][ T5845] bcachefs (loop0): Using encoding defined by superblock: utf8-12.1.0
[   91.351606][ T5845] bcachefs (loop0): recovering from clean shutdown, journal seq 13
[   91.352255][ T5848]  done
[   91.356094][ T5848] bcachefs (loop1): done starting filesystem
[pid  5848] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5845] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid  5840] exit_group(0)               = ?
[   91.401760][ T5847] bcachefs (loop3): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=none,compression=lz4,nojournal_transaction_names,noexcl,read_only,version_upgrade=none
[   91.401790][ T5847]   allowing incompatible features above 0.0: (unknown version)
[   91.401806][ T5847]   features: lz4,new_siphash,inline_data,new_extent_overwrite,btree_ptr_v2,new_varint,journal_no_flush,alloc_v2,extents_across_btree_nodes
[   91.401840][ T5847] bcachefs (loop3): Using encoding defined by superblock: utf8-12.1.0
[   91.401980][ T5847] bcachefs (loop3): recovering from clean shutdown, journal seq 13
[   91.408838][ T5848] bcachefs (loop1): going read-write
[pid  5849] <... mount resumed>)        = 0
[pid  5848] <... futex resumed>)        = ?
[pid  5845] <... openat resumed>)       = 3
[pid  5849] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid  5849] chdir("./file0")            = 0
[pid  5849] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4
[pid  5849] ioctl(4, LOOP_CLR_FD)       = 0
[pid  5849] close(4)                    = 0
[pid  5849] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[   91.412212][ T5849] bcachefs (loop4): accounting_read...
[   91.416676][ T5845] bcachefs (loop0): accounting_read...
[   91.433241][ T5849]  done
[   91.433259][ T5849] bcachefs (loop4): alloc_read...
[   91.434040][ T5845]  done
[   91.434054][ T5845] bcachefs (loop0): alloc_read...
[   91.435740][ T5849]  done
[   91.435754][ T5849] bcachefs (loop4): snapshots_read...
[   91.438974][ T5845]  done
[   91.438988][ T5845] bcachefs (loop0): snapshots_read... done
[   91.447965][ T5849]  done
[   91.466087][ T5845] bcachefs (loop0): journal_replay...
[pid  5849] futex(0x7fb41c7b66a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5848] +++ exited with 0 +++
[pid  5845] chdir("./file0" <unfinished ...>
[pid  5844] <... futex resumed>)        = 0
[pid  5840] +++ exited with 0 +++
[pid  5845] <... chdir resumed>)        = 0
[pid  5844] futex(0x7fb41c7b66a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5835] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5840, si_uid=0, si_status=0, si_utime=7 /* 0.07 s */, si_stime=36 /* 0.36 s */} ---
[pid  5845] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  5844] <... futex resumed>)        = 1
[pid  5845] <... openat resumed>)       = 4
[pid  5844] futex(0x7fb41c7b66ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5845] ioctl(4, LOOP_CLR_FD)       = 0
[   91.469554][ T5849] bcachefs (loop4): journal_replay... done
[   91.471477][ T5845]  done
[   91.472895][ T5849] bcachefs (loop4): resume_logged_ops...
[   91.473663][ T5845] bcachefs (loop0): resume_logged_ops... done
[   91.520001][ T5845] bcachefs (loop0): delete_dead_inodes...
[   91.520505][ T5849]  done
[   91.520520][ T5849] bcachefs (loop4): delete_dead_inodes...
[   91.542430][ T5845]  done
[   91.544097][ T5849]  done
[   91.560252][ T5847] bcachefs (loop3): accounting_read...
[pid  5845] close(4 <unfinished ...>
[pid  5835] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5845] <... close resumed>)        = 0
[pid  5835] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5845] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5835] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid  5845] <... futex resumed>)        = 1
[pid  5845] futex(0x7fb41c7b66a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5835] <... openat resumed>)       = 3
[pid  5835] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5835] getdents64(3, 0x555575692730 /* 4 entries */, 32768) = 112
[   91.570329][ T5846] bcachefs (loop2): Using encoding defined by superblock: utf8-12.1.0
[   91.614290][ T5845] bcachefs (loop0): done starting filesystem
[   91.626673][ T5867] bcachefs (loop1): backpointer doesn't match extent it points to:
[   91.647022][ T5846] bcachefs (loop2): recovering from clean shutdown, journal seq 13
[   91.654552][ T5849] bcachefs (loop4): done starting filesystem
[   91.662728][ T5867]   u64s 9 type backpointer 0:8921088:0 len 0 ver 0: bucket=0:34:8 btree=extents level=0 data_type=user suboffset=0 len=8 gen=0 pos=1073741825:24:U32_MAX
[   91.687717][ T5847]  done
[   91.705974][ T5867]   u64s 8 type extent 1073741825:24:U32_MAX len 24 ver 2: durability: 1 crc: c_size 8 size 24 offset 0 nonce 0 csum chacha20_poly1305_80 5c1d:75853c64f7009f9d  compress lz4 ptr: 0:34:8 gen 0
[   91.750435][ T5847] bcachefs (loop3): alloc_read...
[   91.870528][ T5867]   u64s 9 type backpointer 0:8921088:0 len 0 ver 0: bucket=0:34:8 btree=extents level=0 data_type=user suboffset=0 len=8 gen=0 pos=1073741825:24:U32_MAX, fixing
[   91.875327][   T24] cfg80211: failed to load regulatory.db
[pid  5835] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5849] <... futex resumed>)        = 0
[pid  5844] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  5839] <... futex resumed>)        = 0
[pid  5849] mount(NULL, ".", NULL, MS_NODEV|MS_REMOUNT|MS_MOVE|MS_POSIXACL|MS_LAZYTIME, NULL <unfinished ...>
[pid  5839] futex(0x7fb41c7b66a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5845] <... futex resumed>)        = 0
[pid  5839] <... futex resumed>)        = 1
[pid  5845] mount(NULL, ".", NULL, MS_NODEV|MS_REMOUNT|MS_MOVE|MS_POSIXACL|MS_LAZYTIME, NULL <unfinished ...>
[   91.924926][ T5849] bcachefs (loop4): going read-write
[   91.928006][ T5847]  done
[   91.933142][ T5835] bcachefs (loop1): shutting down
[   91.939270][ T5835] bcachefs (loop1): going read-only
[   91.945143][ T5845] bcachefs (loop0): going read-write
[   91.952052][ T5835] bcachefs (loop1): finished waiting for writes to stop
[   91.957928][ T5846] bcachefs (loop2): accounting_read... done
[   91.966986][ T5847] bcachefs (loop3): snapshots_read... done
[pid  5839] futex(0x7fb41c7b66ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[   91.968298][ T5867] bcachefs (loop1): Detected missing backpointers in bucket 34, now have 1/128 with missing
[   91.986423][ T5846] bcachefs (loop2): alloc_read... done
[   91.993067][ T5846] bcachefs (loop2): snapshots_read... done
[   92.004679][ T5847] bcachefs (loop3): journal_replay... done
[   92.023364][ T5846] bcachefs (loop2): journal_replay... done
[   92.042936][ T5867]   scheduling recovery pass check_extents_to_backpointers (17)
[   92.045609][ T5847] bcachefs (loop3): resume_logged_ops...
[   92.052963][ T5835] bcachefs (loop1): flushing journal and stopping allocators, journal seq 15
[   92.069419][ T5846] bcachefs (loop2): resume_logged_ops... done
[pid  5845] <... mount resumed>)        = 0
[   92.075539][ T5847]  done
[   92.080075][ T5835] bcachefs (loop1): flushing journal and stopping allocators complete, journal seq 15
[   92.082589][ T5846] bcachefs (loop2): delete_dead_inodes...
[   92.091908][ T5847] bcachefs (loop3): delete_dead_inodes...
[   92.094540][ T5883] bcachefs (loop4): backpointer doesn't match extent it points to:
[   92.098615][ T5835] bcachefs (loop1): clean shutdown complete, journal seq 16
[   92.105433][ T5883]   u64s 9 type backpointer 0:8921088:0 len 0 ver 0: bucket=0:34:8 btree=extents level=0 data_type=user suboffset=0 len=8 gen=0 pos=1073741825:24:U32_MAX
[   92.113950][ T5835] bcachefs (loop1): marking filesystem clean
[   92.120658][ T5885] bcachefs (loop0): backpointer doesn't match extent it points to:
[   92.137427][ T5883]   u64s 8 type extent 1073741825:24:U32_MAX len 24 ver 2: durability: 1 crc: c_size 8 size 24 offset 0 nonce 0 csum chacha20_poly1305_80 5c1d:75853c64f7009f9d  compress lz4 ptr: 0:34:8 gen 0
[   92.141042][ T5847]  done
[pid  5845] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5849] <... mount resumed>)        = 0
[pid  5849] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5849] futex(0x7fb41c7b66a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5839] exit_group(0)               = ?
[pid  5845] <... futex resumed>)        = ?
[pid  5844] exit_group(0)               = ?
[pid  5849] <... futex resumed>)        = ?
[pid  5849] +++ exited with 0 +++
[pid  5845] +++ exited with 0 +++
[pid  5839] +++ exited with 0 +++
[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=38 /* 0.38 s */} ---
[pid  5844] +++ exited with 0 +++
[pid  5838] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5844, si_uid=0, si_status=0, si_utime=9 /* 0.09 s */, si_stime=32 /* 0.32 s */} ---
[pid  5838] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  5838] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5838] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid  5838] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5838] getdents64(3, 0x555575692730 /* 4 entries */, 32768) = 112
[   92.148345][ T5883]   u64s 9 type backpointer 0:8921088:0 len 0 ver 0: bucket=0:34:8 btree=extents level=0 data_type=user suboffset=0 len=8 gen=0 pos=1073741825:24:U32_MAX, fixing
[   92.189601][ T5846]  done
[   92.192596][ T5883] bcachefs (loop4): Detected missing backpointers in bucket 34, now have 1/128 with missing
[   92.192630][ T5883]   scheduling recovery pass check_extents_to_backpointers (17)
[   92.209126][ T5838] bcachefs (loop4): shutting down
[   92.220262][ T5885]   u64s 9 type backpointer 0:8921088:0 len 0 ver 0: bucket=0:34:8 btree=extents level=0 data_type=user suboffset=0 len=8 gen=0 pos=1073741825:24:U32_MAX
[   92.220285][ T5885]   u64s 8 type extent 1073741825:24:U32_MAX len 24 ver 2: durability: 1 crc: c_size 8 size 24 offset 0 nonce 0 csum chacha20_poly1305_80 5c1d:75853c64f7009f9d  compress lz4 ptr: 0:34:8 gen 0
[   92.220306][ T5885]   u64s 9 type backpointer 0:8921088:0 len 0 ver 0: bucket=0:34:8 btree=extents level=0 data_type=user suboffset=0 len=8 gen=0 pos=1073741825:24:U32_MAX, fixing
[pid  5838] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5833] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid  5833] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5833] getdents64(3, 0x555575692730 /* 4 entries */, 32768) = 112
[pid  5833] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5846] <... mount resumed>)        = 0
[pid  5846] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid  5846] chdir("./file0")            = 0
[pid  5846] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4
[pid  5846] ioctl(4, LOOP_CLR_FD)       = 0
[pid  5846] close(4)                    = 0
[pid  5847] <... mount resumed>)        = 0
[pid  5846] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5846] futex(0x7fb41c7b66a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5842] <... futex resumed>)        = 0
[   92.223001][ T5885] bcachefs (loop0): Detected missing backpointers in bucket 34, now have 1/128 with missing
[   92.252991][ T5838] bcachefs (loop4): going read-only
[   92.272283][ T5846] bcachefs (loop2): done starting filesystem
[   92.289275][ T5838] bcachefs (loop4): finished waiting for writes to stop
[   92.298148][ T5885]   scheduling recovery pass check_extents_to_backpointers (17)
[   92.306007][ T5847] bcachefs (loop3): done starting filesystem
[   92.321902][ T5846] bcachefs (loop2): going read-write
[pid  5842] futex(0x7fb41c7b66a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5846] <... futex resumed>)        = 0
[pid  5842] <... futex resumed>)        = 1
[pid  5846] mount(NULL, ".", NULL, MS_NODEV|MS_REMOUNT|MS_MOVE|MS_POSIXACL|MS_LAZYTIME, NULL <unfinished ...>
[pid  5842] futex(0x7fb41c7b66ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5847] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid  5847] chdir("./file0")            = 0
[pid  5847] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4
[pid  5847] ioctl(4, LOOP_CLR_FD)       = 0
[pid  5847] close(4)                    = 0
[pid  5847] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5847] futex(0x7fb41c7b66a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5843] <... futex resumed>)        = 0
[pid  5843] futex(0x7fb41c7b66a8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5847] <... futex resumed>)        = 0
[pid  5843] futex(0x7fb41c7b66ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[   92.322897][ T5835] bcachefs (loop1): shutdown complete
[   92.339767][ T5838] bcachefs (loop4): flushing journal and stopping allocators, journal seq 15
[   92.355463][ T5833] bcachefs (loop0): shutting down
[   92.362210][ T5833] bcachefs (loop0): going read-only
[   92.368636][ T5847] bcachefs (loop3): going read-write
[pid  5847] mount(NULL, ".", NULL, MS_NODEV|MS_REMOUNT|MS_MOVE|MS_POSIXACL|MS_LAZYTIME, NULL <unfinished ...>
[pid  5842] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  5843] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[   92.374404][ T5833] bcachefs (loop0): finished waiting for writes to stop
[   92.395788][ T5838] bcachefs (loop4): flushing journal and stopping allocators complete, journal seq 15
[   92.409705][ T5833] bcachefs (loop0): flushing journal and stopping allocators, journal seq 15
[   92.421609][ T5833] bcachefs (loop0): flushing journal and stopping allocators complete, journal seq 15
[   92.443583][ T5838] bcachefs (loop4): clean shutdown complete, journal seq 16
[   92.453013][ T5833] bcachefs (loop0): clean shutdown complete, journal seq 16
[pid  5846] <... mount resumed>)        = 0
[   92.479188][ T5900] bcachefs (loop2): backpointer doesn't match extent it points to:
[   92.479228][ T5900]   u64s 9 type backpointer 0:8921088:0 len 0 ver 0: bucket=0:34:8 btree=extents level=0 data_type=user suboffset=0 len=8 gen=0 pos=1073741825:24:U32_MAX
[   92.479244][ T5900]   u64s 8 type extent 1073741825:24:U32_MAX len 24 ver 2: durability: 1 crc: c_size 8 size 24 offset 0 nonce 0 csum chacha20_poly1305_80 5c1d:75853c64f7009f9d  compress lz4 ptr: 0:34:8 gen 0
[pid  5846] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5846] futex(0x7fb41c7b66a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5842] exit_group(0)               = ?
[pid  5846] <... futex resumed>)        = ?
[pid  5847] <... mount resumed>)        = 0
[pid  5847] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5847] futex(0x7fb41c7b66a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5843] exit_group(0 <unfinished ...>
[pid  5847] <... futex resumed>)        = ?
[pid  5843] <... exit_group resumed>)   = ?
[pid  5847] +++ exited with 0 +++
[pid  5843] +++ exited with 0 +++
[   92.479260][ T5900]   u64s 9 type backpointer 0:8921088:0 len 0 ver 0: bucket=0:34:8 btree=extents level=0 data_type=user suboffset=0 len=8 gen=0 pos=1073741825:24:U32_MAX, fixing
[   92.486302][ T5838] bcachefs (loop4): marking filesystem clean
[   92.508799][ T5900] bcachefs (loop2): Detected missing backpointers in bucket 34, now have 1/128 with missing
[   92.525690][ T5833] bcachefs (loop0): marking filesystem clean
[pid  5846] +++ exited with 0 +++
[pid  5842] +++ exited with 0 +++
[pid  5837] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5843, si_uid=0, si_status=0, si_utime=9 /* 0.09 s */, si_stime=50 /* 0.50 s */} ---
[pid  5837] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  5836] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5842, si_uid=0, si_status=0, si_utime=9 /* 0.09 s */, si_stime=62 /* 0.62 s */} ---
[pid  5837] <... restart_syscall resumed>) = 0
[pid  5836] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  5837] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5837] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid  5836] <... restart_syscall resumed>) = 0
[pid  5837] <... openat resumed>)       = 3
[pid  5837] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5836] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5837] getdents64(3,  <unfinished ...>
[pid  5836] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5837] <... getdents64 resumed>0x555575692730 /* 4 entries */, 32768) = 112
[pid  5836] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid  5837] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5836] <... openat resumed>)       = 3
[pid  5836] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5836] getdents64(3, 0x555575692730 /* 4 entries */, 32768) = 112
[   92.596962][ T5900]   scheduling recovery pass check_extents_to_backpointers (17)
[   92.612234][ T5904] bcachefs (loop3): backpointer doesn't match extent it points to:
[   92.612252][ T5904]   u64s 9 type backpointer 0:8921088:0 len 0 ver 0: bucket=0:34:8 btree=extents level=0 data_type=user suboffset=0 len=8 gen=0 pos=1073741825:24:U32_MAX
[   92.612269][ T5904]   u64s 8 type extent 1073741825:24:U32_MAX len 24 ver 2: durability: 1 crc: c_size 8 size 24 offset 0 nonce 0 csum chacha20_poly1305_80 5c1d:75853c64f7009f9d  compress lz4 ptr: 0:34:8 gen 0
[   92.612288][ T5904]   u64s 9 type backpointer 0:8921088:0 len 0 ver 0: bucket=0:34:8 btree=extents level=0 data_type=user suboffset=0 len=8 gen=0 pos=1073741825:24:U32_MAX, fixing
[   92.641580][ T5837] bcachefs (loop3): shutting down
[   92.641613][ T5837] bcachefs (loop3): going read-only
[   92.641640][ T5837] bcachefs (loop3): finished waiting for writes to stop
[   92.713703][ T5836] bcachefs (loop2): shutting down
[   92.713732][ T5836] bcachefs (loop2): going read-only
[   92.713759][ T5836] bcachefs (loop2): finished waiting for writes to stop
[   92.718104][ T5838] bcachefs (loop4): shutdown complete
[   92.718686][ T5836] bcachefs (loop2): flushing journal and stopping allocators, journal seq 14
[   92.718837][ T5836] bcachefs (loop2): flushing journal and stopping allocators complete, journal seq 14
[   92.723391][ T5836] bcachefs (loop2): clean shutdown complete, journal seq 15
[   92.724091][ T5836] bcachefs (loop2): marking filesystem clean
[   92.771105][ T5833] bcachefs (loop0): shutdown complete
[   92.773763][ T5837] bcachefs (loop3): flushing journal and stopping allocators, journal seq 13
[   92.837750][ T5837] bcachefs (loop3): flushing journal and stopping allocators complete, journal seq 13
[   92.850167][ T5837] bcachefs (loop3): clean shutdown complete, journal seq 14
[   92.859120][ T5837] bcachefs (loop3): marking filesystem clean
[   92.907851][ T5836] bcachefs (loop2): shutdown complete
[pid  5836] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5835] <... umount2 resumed>)      = 0
[pid  5835] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5835] newfstatat(AT_FDCWD, "./0/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5835] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5835] openat(AT_FDCWD, "./0/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, 0x55557569a770 /* 2 entries */, 32768) = 48
[pid  5835] getdents64(4, 0x55557569a770 /* 0 entries */, 32768) = 0
[pid  5835] close(4)                    = 0
[pid  5835] rmdir("./0/file0")          = 0
[pid  5835] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5835] newfstatat(AT_FDCWD, "./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5835] unlink("./0/binderfs")      = 0
[pid  5835] getdents64(3, 0x555575692730 /* 0 entries */, 32768) = 0
[pid  5835] close(3)                    = 0
[   93.008529][ T5837] bcachefs (loop3): shutdown complete
[pid  5835] rmdir("./0")                = 0
[pid  5835] mkdir("./1", 0777)          = 0
[pid  5835] openat(AT_FDCWD, "/dev/loop1", 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 5907 attached
 <unfinished ...>
[pid  5907] set_robust_list(0x5555756916a0, 24 <unfinished ...>
[pid  5835] <... clone resumed>, child_tidptr=0x555575691690) = 5907
[pid  5907] <... set_robust_list resumed>) = 0
[pid  5907] chdir("./1")                = 0
[pid  5907] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5907] setpgid(0, 0)               = 0
[pid  5907] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5907] write(3, "1000", 4)         = 4
[pid  5907] close(3)                    = 0
[pid  5907] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid  5907] write(1, "executing program\n", 18) = 18
[pid  5907] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5907] rt_sigaction(SIGRT_1, {sa_handler=0x7fb41c745060, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb41c736210}, NULL, 8) = 0
[pid  5907] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5907] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb41c6b3000
[pid  5907] mprotect(0x7fb41c6b4000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5907] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5907] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb41c6d3990, parent_tid=0x7fb41c6d3990, exit_signal=0, stack=0x7fb41c6b3000, stack_size=0x20300, tls=0x7fb41c6d36c0}./strace-static-x86_64: Process 5908 attached
 <unfinished ...>
[pid  5908] rseq(0x7fb41c6d3fe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid  5907] <... clone3 resumed> => {parent_tid=[5908]}, 88) = 5908
[pid  5908] <... rseq resumed>)         = 0
[pid  5907] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5908] set_robust_list(0x7fb41c6d39a0, 24 <unfinished ...>
[pid  5907] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5908] <... set_robust_list resumed>) = 0
[pid  5907] futex(0x7fb41c7b66a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5908] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid  5907] <... futex resumed>)        = 0
[pid  5908] memfd_create("syzkaller", 0) = 3
[pid  5908] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb414200000
[pid  5907] futex(0x7fb41c7b66ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid  5833] <... umount2 resumed>)      = 0
[pid  5833] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./0/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] openat(AT_FDCWD, "./0/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, 0x55557569a770 /* 2 entries */, 32768) = 48
[pid  5833] getdents64(4, 0x55557569a770 /* 0 entries */, 32768) = 0
[pid  5833] close(4)                    = 0
[pid  5833] rmdir("./0/file0")          = 0
[pid  5908] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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  5833] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] unlink("./0/binderfs")      = 0
[pid  5833] getdents64(3, 0x555575692730 /* 0 entries */, 32768) = 0
[pid  5833] close(3)                    = 0
[pid  5833] rmdir("./0")                = 0
[pid  5833] mkdir("./1", 0777)          = 0
[pid  5833] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  5833] ioctl(3, LOOP_CLR_FD)       = -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 5909 attached
 <unfinished ...>
[pid  5909] set_robust_list(0x5555756916a0, 24 <unfinished ...>
[pid  5833] <... clone resumed>, child_tidptr=0x555575691690) = 5909
[pid  5909] <... set_robust_list resumed>) = 0
[pid  5909] chdir("./1")                = 0
[pid  5909] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5909] setpgid(0, 0)               = 0
[pid  5909] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5909] write(3, "1000", 4)         = 4
[pid  5909] close(3)                    = 0
[pid  5909] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5909] write(1, "executing program\n", 18executing program
) = 18
[pid  5909] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5909] rt_sigaction(SIGRT_1, {sa_handler=0x7fb41c745060, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb41c736210}, NULL, 8) = 0
[pid  5909] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5909] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb41c6b3000
[pid  5909] mprotect(0x7fb41c6b4000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5909] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5909] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb41c6d3990, parent_tid=0x7fb41c6d3990, exit_signal=0, stack=0x7fb41c6b3000, stack_size=0x20300, tls=0x7fb41c6d36c0}./strace-static-x86_64: Process 5910 attached
 => {parent_tid=[5910]}, 88) = 5910
[pid  5910] rseq(0x7fb41c6d3fe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid  5909] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5910] <... rseq resumed>)         = 0
[pid  5909] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5910] set_robust_list(0x7fb41c6d39a0, 24 <unfinished ...>
[pid  5909] futex(0x7fb41c7b66a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5910] <... set_robust_list resumed>) = 0
[pid  5910] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid  5909] <... futex resumed>)        = 0
[pid  5909] futex(0x7fb41c7b66ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid  5910] memfd_create("syzkaller", 0) = 3
[pid  5910] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb414200000
[pid  5908] <... write resumed>)        = 16777216
[pid  5908] munmap(0x7fb414200000, 138412032) = 0
[pid  5908] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4
[pid  5908] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  5908] close(3)                    = 0
[pid  5908] close(4)                    = 0
[pid  5908] mkdir("./file0", 0777)      = 0
[   93.557791][ T5908] loop1: detected capacity change from 0 to 32768
[pid  5908] mount("/dev/loop1", "./file0", "bcachefs", MS_RDONLY|MS_SYNCHRONOUS|MS_MANDLOCK|MS_POSIXACL|MS_STRICTATIME, "errors=fix_safe,version_upgrade=none,noexcl,shard_inode_numbers," <unfinished ...>
[pid  5910] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...>
[pid  5836] <... umount2 resumed>)      = 0
[pid  5836] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5836] newfstatat(AT_FDCWD, "./0/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5836] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5836] openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid  5836] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5836] getdents64(4, 0x55557569a770 /* 2 entries */, 32768) = 48
[pid  5836] getdents64(4, 0x55557569a770 /* 0 entries */, 32768) = 0
[pid  5836] close(4)                    = 0
[pid  5836] rmdir("./0/file0")          = 0
[pid  5836] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5836] newfstatat(AT_FDCWD, "./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5836] unlink("./0/binderfs")      = 0
[pid  5836] getdents64(3, 0x555575692730 /* 0 entries */, 32768) = 0
[pid  5836] close(3)                    = 0
[pid  5836] rmdir("./0")                = 0
[pid  5836] mkdir("./1", 0777)          = 0
[pid  5836] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  5836] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  5836] close(3)                    = 0
[pid  5836] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555575691690) = 5912
./strace-static-x86_64: Process 5912 attached
[pid  5912] set_robust_list(0x5555756916a0, 24) = 0
[pid  5912] chdir("./1")                = 0
[pid  5912] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5912] setpgid(0, 0)               = 0
[pid  5912] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5912] write(3, "1000", 4)         = 4
[pid  5912] close(3)                    = 0
[pid  5912] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5912] write(1, "executing program\n", 18executing program
) = 18
[pid  5912] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5912] rt_sigaction(SIGRT_1, {sa_handler=0x7fb41c745060, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb41c736210}, NULL, 8) = 0
[pid  5912] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5912] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb41c6b3000
[pid  5912] mprotect(0x7fb41c6b4000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5912] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5912] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb41c6d3990, parent_tid=0x7fb41c6d3990, exit_signal=0, stack=0x7fb41c6b3000, stack_size=0x20300, tls=0x7fb41c6d36c0}./strace-static-x86_64: Process 5913 attached
 => {parent_tid=[5913]}, 88) = 5913
[pid  5912] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid  5912] futex(0x7fb41c7b66a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5913] rseq(0x7fb41c6d3fe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid  5912] <... futex resumed>)        = 0
[pid  5913] <... rseq resumed>)         = 0
[pid  5912] futex(0x7fb41c7b66ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid  5913] set_robust_list(0x7fb41c6d39a0, 24) = 0
[pid  5913] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid  5913] memfd_create("syzkaller", 0) = 3
[pid  5913] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb414200000
[pid  5838] <... umount2 resumed>)      = 0
[pid  5838] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5838] newfstatat(AT_FDCWD, "./0/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5838] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5838] openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid  5838] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5838] getdents64(4, 0x55557569a770 /* 2 entries */, 32768) = 48
[pid  5838] getdents64(4, 0x55557569a770 /* 0 entries */, 32768) = 0
[pid  5838] close(4)                    = 0
[pid  5838] rmdir("./0/file0")          = 0
[pid  5838] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5838] newfstatat(AT_FDCWD, "./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5838] unlink("./0/binderfs")      = 0
[pid  5838] getdents64(3, 0x555575692730 /* 0 entries */, 32768) = 0
[pid  5838] close(3)                    = 0
[pid  5838] rmdir("./0")                = 0
[pid  5838] mkdir("./1", 0777)          = 0
[pid  5838] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  5838] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  5838] close(3)                    = 0
[pid  5838] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555575691690) = 5914
./strace-static-x86_64: Process 5914 attached
[pid  5914] set_robust_list(0x5555756916a0, 24) = 0
[pid  5914] chdir("./1")                = 0
[pid  5914] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5914] setpgid(0, 0)               = 0
[pid  5914] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5914] write(3, "1000", 4)         = 4
[pid  5914] close(3)                    = 0
[pid  5914] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5914] write(1, "executing program\n", 18executing program
) = 18
[pid  5914] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5914] rt_sigaction(SIGRT_1, {sa_handler=0x7fb41c745060, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb41c736210}, NULL, 8) = 0
[pid  5914] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5914] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb41c6b3000
[pid  5914] mprotect(0x7fb41c6b4000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5914] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5914] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb41c6d3990, parent_tid=0x7fb41c6d3990, exit_signal=0, stack=0x7fb41c6b3000, stack_size=0x20300, tls=0x7fb41c6d36c0}./strace-static-x86_64: Process 5915 attached
 <unfinished ...>
[pid  5915] rseq(0x7fb41c6d3fe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid  5914] <... clone3 resumed> => {parent_tid=[5915]}, 88) = 5915
[pid  5915] <... rseq resumed>)         = 0
[pid  5914] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5915] set_robust_list(0x7fb41c6d39a0, 24 <unfinished ...>
[pid  5914] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5915] <... set_robust_list resumed>) = 0
[pid  5915] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5914] futex(0x7fb41c7b66a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5915] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5914] <... futex resumed>)        = 0
[pid  5915] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5914] futex(0x7fb41c7b66ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid  5915] <... memfd_create resumed>) = 3
[pid  5915] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb414200000
[pid  5910] <... write resumed>)        = 16777216
[pid  5910] munmap(0x7fb414200000, 138412032 <unfinished ...>
[pid  5913] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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  5910] <... munmap resumed>)       = 0
[pid  5910] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5910] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  5910] close(3)                    = 0
[pid  5910] close(4)                    = 0
[pid  5910] mkdir("./file0", 0777)      = 0
[   94.130973][ T5910] loop0: detected capacity change from 0 to 32768
[pid  5910] mount("/dev/loop0", "./file0", "bcachefs", MS_RDONLY|MS_SYNCHRONOUS|MS_MANDLOCK|MS_POSIXACL|MS_STRICTATIME, "errors=fix_safe,version_upgrade=none,noexcl,shard_inode_numbers," <unfinished ...>
[pid  5913] <... write resumed>)        = 16777216
[pid  5915] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...>
[pid  5913] munmap(0x7fb414200000, 138412032) = 0
[pid  5913] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4
[pid  5913] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  5913] close(3)                    = 0
[pid  5913] close(4)                    = 0
[pid  5913] mkdir("./file0", 0777)      = 0
[   94.355840][ T5913] loop2: detected capacity change from 0 to 32768
[   94.445202][ T5910] bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=none,compression=lz4,nojournal_transaction_names,noexcl,read_only,version_upgrade=none
[   94.445231][ T5910]   allowing incompatible features above 0.0: (unknown version)
[   94.445244][ T5910]   features: lz4,new_siphash,inline_data,new_extent_overwrite,btree_ptr_v2,new_varint,journal_no_flush,alloc_v2,extents_across_btree_nodes
[   94.503344][ T5908] bcachefs (loop1): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=none,compression=lz4,nojournal_transaction_names,noexcl,read_only,version_upgrade=none
[   94.503372][ T5908]   allowing incompatible features above 0.0: (unknown version)
[   94.503386][ T5908]   features: lz4,new_siphash,inline_data,new_extent_overwrite,btree_ptr_v2,new_varint,journal_no_flush,alloc_v2,extents_across_btree_nodes
[   94.503416][ T5908] bcachefs (loop1): Using encoding defined by superblock: utf8-12.1.0
[   94.503561][ T5908] bcachefs (loop1): recovering from clean shutdown, journal seq 13
[   94.562657][ T5913] bcachefs (loop2): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=none,compression=lz4,nojournal_transaction_names,noexcl,read_only,version_upgrade=none
[   94.643476][ T5913]   allowing incompatible features above 0.0: (unknown version)
[   94.651503][ T5913]   features: lz4,new_siphash,inline_data,new_extent_overwrite,btree_ptr_v2,new_varint,journal_no_flush,alloc_v2,extents_across_btree_nodes
[   94.652806][ T5910] bcachefs (loop0): Using encoding defined by superblock: utf8-12.1.0
[   94.666060][ T5913] bcachefs (loop2): Using encoding defined by superblock: utf8-12.1.0
[   94.697559][ T5913] bcachefs (loop2): recovering from clean shutdown, journal seq 13
[   94.718631][ T5908] bcachefs (loop1): accounting_read...
[   94.726610][ T5910] bcachefs (loop0): recovering from clean shutdown, journal seq 13
[   94.756885][ T5908]  done
[   94.759713][ T5908] bcachefs (loop1): alloc_read... done
[   94.767845][ T5908] bcachefs (loop1): snapshots_read... done
[pid  5913] mount("/dev/loop2", "./file0", "bcachefs", MS_RDONLY|MS_SYNCHRONOUS|MS_MANDLOCK|MS_POSIXACL|MS_STRICTATIME, "errors=fix_safe,version_upgrade=none,noexcl,shard_inode_numbers," <unfinished ...>
[pid  5915] <... write resumed>)        = 16777216
[pid  5915] munmap(0x7fb414200000, 138412032) = 0
[pid  5915] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4
[   94.792142][ T5913] bcachefs (loop2): accounting_read...
[   94.798988][ T5908] bcachefs (loop1): journal_replay... done
[   94.825762][ T5910] bcachefs (loop0): accounting_read...
[pid  5915] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  5915] close(3)                    = 0
[pid  5915] close(4)                    = 0
[pid  5915] mkdir("./file0", 0777)      = 0
[   94.826916][ T5908] bcachefs (loop1): resume_logged_ops...
[   94.844333][ T5915] loop4: detected capacity change from 0 to 32768
[   94.844387][ T5913]  done
[   94.864857][ T5910]  done
[   94.865276][ T5908]  done
[   94.867647][ T5910] bcachefs (loop0): alloc_read...
[   94.870412][ T5908] bcachefs (loop1): delete_dead_inodes... done
[   94.889911][ T5913] bcachefs (loop2): alloc_read...
[   94.889929][ T5910]  done
[pid  5915] mount("/dev/loop4", "./file0", "bcachefs", MS_RDONLY|MS_SYNCHRONOUS|MS_MANDLOCK|MS_POSIXACL|MS_STRICTATIME, "errors=fix_safe,version_upgrade=none,noexcl,shard_inode_numbers," <unfinished ...>
[pid  5908] <... mount resumed>)        = 0
[pid  5837] <... umount2 resumed>)      = 0
[pid  5837] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5837] newfstatat(AT_FDCWD, "./0/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[   94.893666][ T5913]  done
[   94.897389][ T5910] bcachefs (loop0): snapshots_read... done
[   94.912316][ T5908] bcachefs (loop1): done starting filesystem
[   94.920219][ T5913] bcachefs (loop2): snapshots_read... done
[pid  5908] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid  5837] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5837] openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid  5837] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5908] <... openat resumed>)       = 3
[pid  5837] getdents64(4, 0x55557569a770 /* 2 entries */, 32768) = 48
[pid  5908] chdir("./file0")            = 0
[pid  5908] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4
[pid  5908] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid  5837] getdents64(4, 0x55557569a770 /* 0 entries */, 32768) = 0
[pid  5908] <... ioctl resumed>)        = 0
[pid  5837] close(4 <unfinished ...>
[pid  5908] close(4 <unfinished ...>
[pid  5837] <... close resumed>)        = 0
[pid  5908] <... close resumed>)        = 0
[pid  5908] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5837] rmdir("./0/file0" <unfinished ...>
[pid  5908] <... futex resumed>)        = 1
[pid  5907] <... futex resumed>)        = 0
[pid  5908] mount(NULL, ".", NULL, MS_NODEV|MS_REMOUNT|MS_MOVE|MS_POSIXACL|MS_LAZYTIME, NULL <unfinished ...>
[pid  5907] futex(0x7fb41c7b66a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5837] <... rmdir resumed>)        = 0
[pid  5907] <... futex resumed>)        = 0
[pid  5907] futex(0x7fb41c7b66ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5837] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5837] newfstatat(AT_FDCWD, "./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5837] unlink("./0/binderfs")      = 0
[pid  5837] getdents64(3, 0x555575692730 /* 0 entries */, 32768) = 0
[pid  5837] close(3)                    = 0
[   94.959545][ T5913] bcachefs (loop2): journal_replay...
[   94.960317][ T5910] bcachefs (loop0): journal_replay...
[   94.974098][ T5913]  done
[   94.982970][ T5908] bcachefs (loop1): going read-write
[   94.993276][ T5910]  done
[pid  5837] rmdir("./0")                = 0
[pid  5907] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  5837] mkdir("./1", 0777)          = 0
[   95.005896][ T5910] bcachefs (loop0): resume_logged_ops... done
[   95.008600][ T5915] bcachefs (loop4): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=none,compression=lz4,nojournal_transaction_names,noexcl,read_only,version_upgrade=none
[pid  5837] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  5837] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  5837] close(3)                    = 0
[pid  5837] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555575691690) = 5924
./strace-static-x86_64: Process 5924 attached
[pid  5924] set_robust_list(0x5555756916a0, 24) = 0
[pid  5924] chdir("./1")                = 0
[pid  5924] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5924] setpgid(0, 0)               = 0
[pid  5924] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5924] write(3, "1000", 4)         = 4
[pid  5924] close(3)                    = 0
[pid  5924] symlink("/dev/binderfs", "./binderfs") = 0
[   95.019198][ T5910] bcachefs (loop0): delete_dead_inodes...
[   95.059036][ T5913] bcachefs (loop2): resume_logged_ops...
[   95.065805][ T5910]  done
[   95.075899][ T5913]  done
[   95.078710][ T5913] bcachefs (loop2): delete_dead_inodes... done
executing program
[pid  5924] write(1, "executing program\n", 18) = 18
[pid  5924] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5924] rt_sigaction(SIGRT_1, {sa_handler=0x7fb41c745060, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb41c736210}, NULL, 8) = 0
[pid  5924] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5924] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb41c6b3000
[pid  5924] mprotect(0x7fb41c6b4000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5924] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[   95.110050][ T5915]   allowing incompatible features above 0.0: (unknown version)
[   95.117217][ T5910] bcachefs (loop0): done starting filesystem
[   95.125290][ T5915]   features: lz4,new_siphash,inline_data,new_extent_overwrite,btree_ptr_v2,new_varint,journal_no_flush,alloc_v2,extents_across_btree_nodes
[   95.133185][ T5913] bcachefs (loop2): done starting filesystem
[   95.143750][ T5915] bcachefs (loop4): Using encoding defined by superblock: utf8-12.1.0
[pid  5924] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb41c6d3990, parent_tid=0x7fb41c6d3990, exit_signal=0, stack=0x7fb41c6b3000, stack_size=0x20300, tls=0x7fb41c6d36c0} <unfinished ...>
[pid  5910] <... mount resumed>)        = 0
./strace-static-x86_64: Process 5928 attached
[pid  5924] <... clone3 resumed> => {parent_tid=[5928]}, 88) = 5928
[pid  5910] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid  5908] <... mount resumed>)        = 0
[pid  5910] <... openat resumed>)       = 3
[pid  5908] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5928] rseq(0x7fb41c6d3fe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid  5924] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5910] chdir("./file0" <unfinished ...>
[pid  5908] <... futex resumed>)        = 0
[pid  5928] <... rseq resumed>)         = 0
[pid  5924] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5910] <... chdir resumed>)        = 0
[pid  5908] futex(0x7fb41c7b66a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5907] exit_group(0 <unfinished ...>
[pid  5928] set_robust_list(0x7fb41c6d39a0, 24 <unfinished ...>
[pid  5924] futex(0x7fb41c7b66a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5910] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  5908] <... futex resumed>)        = ?
[pid  5907] <... exit_group resumed>)   = ?
[pid  5928] <... set_robust_list resumed>) = 0
[pid  5924] <... futex resumed>)        = 0
[pid  5910] <... openat resumed>)       = 4
[pid  5908] +++ exited with 0 +++
[pid  5907] +++ exited with 0 +++
[pid  5835] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5907, si_uid=0, si_status=0, si_utime=8 /* 0.08 s */, si_stime=23 /* 0.23 s */} ---
[pid  5928] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5924] futex(0x7fb41c7b66ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid  5910] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid  5835] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  5928] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5928] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5910] <... ioctl resumed>)        = 0
[pid  5835] <... restart_syscall resumed>) = 0
[   95.148059][ T5927] bcachefs (loop1): backpointer doesn't match extent it points to:
[   95.153915][ T5915] bcachefs (loop4): recovering from clean shutdown, journal seq 13
[pid  5928] <... memfd_create resumed>) = 3
[pid  5910] close(4 <unfinished ...>
[pid  5835] umount2("./1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5835] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid  5835] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5835] getdents64(3, 0x555575692730 /* 4 entries */, 32768) = 112
[pid  5835] umount2("./1/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5913] <... mount resumed>)        = 0
[pid  5928] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5910] <... close resumed>)        = 0
[pid  5910] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5913] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid  5910] <... futex resumed>)        = 1
[pid  5913] chdir("./file0" <unfinished ...>
[pid  5928] <... mmap resumed>)         = 0x7fb414200000
[pid  5913] <... chdir resumed>)        = 0
[pid  5910] futex(0x7fb41c7b66a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5909] <... futex resumed>)        = 0
[pid  5913] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4
[pid  5909] futex(0x7fb41c7b66a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5913] ioctl(4, LOOP_CLR_FD)       = 0
[pid  5910] <... futex resumed>)        = 0
[pid  5909] <... futex resumed>)        = 1
[pid  5913] close(4 <unfinished ...>
[pid  5910] mount(NULL, ".", NULL, MS_NODEV|MS_REMOUNT|MS_MOVE|MS_POSIXACL|MS_LAZYTIME, NULL <unfinished ...>
[pid  5909] futex(0x7fb41c7b66ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5913] <... close resumed>)        = 0
[   95.202477][ T5927]   u64s 9 type backpointer 0:8921088:0 len 0 ver 0: bucket=0:34:8 btree=extents level=0 data_type=user suboffset=0 len=8 gen=0 pos=1073741825:24:U32_MAX
[   95.219027][ T5835] bcachefs (loop1): shutting down
[   95.224527][ T5835] bcachefs (loop1): going read-only
[   95.245388][ T5910] bcachefs (loop0): going read-write
[pid  5913] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5913] futex(0x7fb41c7b66a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5912] <... futex resumed>)        = 0
[pid  5912] futex(0x7fb41c7b66a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5913] <... futex resumed>)        = 0
[pid  5912] <... futex resumed>)        = 1
[pid  5913] mount(NULL, ".", NULL, MS_NODEV|MS_REMOUNT|MS_MOVE|MS_POSIXACL|MS_LAZYTIME, NULL <unfinished ...>
[pid  5912] futex(0x7fb41c7b66ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5909] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[   95.251624][ T5835] bcachefs (loop1): finished waiting for writes to stop
[   95.268589][ T5913] bcachefs (loop2): going read-write
[   95.276771][ T5927]   u64s 8 type extent 1073741825:24:U32_MAX len 24 ver 2: durability: 1 crc: c_size 8 size 24 offset 0 nonce 0 csum chacha20_poly1305_80 5c1d:75853c64f7009f9d  compress lz4 ptr: 0:34:8 gen 0
[pid  5912] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[   95.306089][ T5915] bcachefs (loop4): accounting_read...
[   95.306251][ T5927]   u64s 9 type backpointer 0:8921088:0 len 0 ver 0: bucket=0:34:8 btree=extents level=0 data_type=user suboffset=0 len=8 gen=0 pos=1073741825:24:U32_MAX, fixing
[   95.341641][ T5835] bcachefs (loop1): flushing journal and stopping allocators, journal seq 13
[   95.352965][ T5915]  done
[   95.355920][ T5915] bcachefs (loop4): alloc_read... done
[   95.379568][ T5835] bcachefs (loop1): flushing journal and stopping allocators complete, journal seq 13
[   95.384887][ T5915] bcachefs (loop4): snapshots_read... done
[pid  5910] <... mount resumed>)        = 0
[pid  5910] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5909] exit_group(0)               = ?
[pid  5913] <... mount resumed>)        = 0
[pid  5910] +++ exited with 0 +++
[pid  5909] +++ exited with 0 +++
[pid  5913] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5909, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=43 /* 0.43 s */} ---
[pid  5833] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  5913] futex(0x7fb41c7b66a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5912] exit_group(0 <unfinished ...>
[pid  5833] <... restart_syscall resumed>) = 0
[pid  5913] <... futex resumed>)        = ?
[pid  5912] <... exit_group resumed>)   = ?
[pid  5913] +++ exited with 0 +++
[pid  5912] +++ exited with 0 +++
[pid  5833] umount2("./1", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5836] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5912, si_uid=0, si_status=0, si_utime=8 /* 0.08 s */, si_stime=49 /* 0.49 s */} ---
[pid  5836] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  5833] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5836] <... restart_syscall resumed>) = 0
[pid  5833] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid  5833] newfstatat(3, "",  <unfinished ...>
[pid  5836] umount2("./1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5836] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid  5833] getdents64(3,  <unfinished ...>
[pid  5836] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5833] <... getdents64 resumed>0x555575692730 /* 4 entries */, 32768) = 112
[pid  5836] getdents64(3,  <unfinished ...>
[pid  5833] umount2("./1/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5836] <... getdents64 resumed>0x555575692730 /* 4 entries */, 32768) = 112
[   95.426038][ T5915] bcachefs (loop4): journal_replay... done
[   95.438248][ T5835] bcachefs (loop1): clean shutdown complete, journal seq 14
[   95.448344][ T5915] bcachefs (loop4): resume_logged_ops...
[pid  5836] umount2("./1/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5915] <... mount resumed>)        = 0
[pid  5915] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid  5915] chdir("./file0")            = 0
[pid  5915] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4
[pid  5915] ioctl(4, LOOP_CLR_FD)       = 0
[pid  5915] close(4)                    = 0
[pid  5915] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[   95.452040][ T5943] bcachefs (loop0): backpointer doesn't match extent it points to:
[   95.452058][ T5943]   u64s 9 type backpointer 0:8921088:0 len 0 ver 0: bucket=0:34:8 btree=extents level=0 data_type=user suboffset=0 len=8 gen=0 pos=1073741825:24:U32_MAX
[   95.452075][ T5943]   u64s 8 type extent 1073741825:24:U32_MAX len 24 ver 2: durability: 1 crc: c_size 8 size 24 offset 0 nonce 0 csum chacha20_poly1305_80 5c1d:75853c64f7009f9d  compress lz4 ptr: 0:34:8 gen 0
[pid  5915] futex(0x7fb41c7b66a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5914] <... futex resumed>)        = 0
[pid  5914] futex(0x7fb41c7b66a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5915] <... futex resumed>)        = 0
[pid  5914] <... futex resumed>)        = 1
[   95.452095][ T5943]   u64s 9 type backpointer 0:8921088:0 len 0 ver 0: bucket=0:34:8 btree=extents level=0 data_type=user suboffset=0 len=8 gen=0 pos=1073741825:24:U32_MAX, fixing
[   95.467943][ T5910] syz-executor206 (5910) used greatest stack depth: 19896 bytes left
[   95.469046][ T5946] bcachefs (loop2): backpointer doesn't match extent it points to:
[   95.469063][ T5946]   u64s 9 type backpointer 0:8921088:0 len 0 ver 0: bucket=0:34:8 btree=extents level=0 data_type=user suboffset=0 len=8 gen=0 pos=1073741825:24:U32_MAX
[   95.469081][ T5946]   u64s 8 type extent 1073741825:24:U32_MAX len 24 ver 2: durability: 1 crc: c_size 8 size 24 offset 0 nonce 0 csum chacha20_poly1305_80 5c1d:75853c64f7009f9d  compress lz4 ptr: 0:34:8 gen 0
[   95.469101][ T5946]   u64s 9 type backpointer 0:8921088:0 len 0 ver 0: bucket=0:34:8 btree=extents level=0 data_type=user suboffset=0 len=8 gen=0 pos=1073741825:24:U32_MAX, fixing
[   95.470715][ T5915]  done
[   95.470731][ T5915] bcachefs (loop4): delete_dead_inodes... done
[   95.487832][ T5946] bcachefs (loop2): Detected missing backpointers in bucket 34, now have 1/128 with missing
[pid  5928] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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  5915] mount(NULL, ".", NULL, MS_NODEV|MS_REMOUNT|MS_MOVE|MS_POSIXACL|MS_LAZYTIME, NULL <unfinished ...>
[   95.487852][ T5946]   scheduling recovery pass check_extents_to_backpointers (17)
[   95.488605][ T5835] bcachefs (loop1): marking filesystem clean
[   95.490707][ T5833] bcachefs (loop0): shutting down
[   95.490722][ T5833] bcachefs (loop0): going read-only
[   95.490748][ T5833] bcachefs (loop0): finished waiting for writes to stop
[   95.491474][ T5915] bcachefs (loop4): done starting filesystem
[   95.499263][ T5836] bcachefs (loop2): shutting down
[   95.560988][ T5833] bcachefs (loop0): flushing journal and stopping allocators, journal seq 13
[pid  5914] futex(0x7fb41c7b66ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[   95.612585][ T5836] bcachefs (loop2): going read-only
[   95.633047][ T5915] bcachefs (loop4): going read-write
[   95.705408][ T5835] bcachefs (loop1): shutdown complete
[   95.705796][ T5833] bcachefs (loop0): flushing journal and stopping allocators complete, journal seq 13
[   95.720505][ T5836] bcachefs (loop2): finished waiting for writes to stop
[   95.730933][ T5836] bcachefs (loop2): flushing journal and stopping allocators, journal seq 15
[   95.744388][ T5833] bcachefs (loop0): clean shutdown complete, journal seq 14
[   95.765504][ T5833] bcachefs (loop0): marking filesystem clean
[pid  5915] <... mount resumed>)        = 0
[pid  5915] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5915] futex(0x7fb41c7b66a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5914] exit_group(0)               = ?
[pid  5915] <... futex resumed>)        = ?
[   95.788358][ T5836] bcachefs (loop2): flushing journal and stopping allocators complete, journal seq 15
[   95.815032][ T5955] bcachefs (loop4): backpointer doesn't match extent it points to:
[   95.815051][ T5955]   u64s 9 type backpointer 0:8921088:0 len 0 ver 0: bucket=0:34:8 btree=extents level=0 data_type=user suboffset=0 len=8 gen=0 pos=1073741825:24:U32_MAX
[   95.815069][ T5955]   u64s 8 type extent 1073741825:24:U32_MAX len 24 ver 2: durability: 1 crc: c_size 8 size 24 offset 0 nonce 0 csum chacha20_poly1305_80 5c1d:75853c64f7009f9d  compress lz4 ptr: 0:34:8 gen 0
[pid  5915] +++ exited with 0 +++
[pid  5914] +++ exited with 0 +++
[pid  5838] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5914, si_uid=0, si_status=0, si_utime=10 /* 0.10 s */, si_stime=45 /* 0.45 s */} ---
[pid  5838] umount2("./1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5838] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid  5838] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5838] getdents64(3, 0x555575692730 /* 4 entries */, 32768) = 112
[   95.815089][ T5955]   u64s 9 type backpointer 0:8921088:0 len 0 ver 0: bucket=0:34:8 btree=extents level=0 data_type=user suboffset=0 len=8 gen=0 pos=1073741825:24:U32_MAX, fixing
[   95.836169][ T5836] bcachefs (loop2): clean shutdown complete, journal seq 16
[   95.864193][ T5955] bcachefs (loop4): Detected missing backpointers in bucket 34, now have 1/128 with missing
[   95.900085][ T5955]   scheduling recovery pass check_extents_to_backpointers (17)
[   95.913245][ T5836] bcachefs (loop2): marking filesystem clean
[   95.926919][ T5833] bcachefs (loop0): shutdown complete
[   95.945474][ T5838] bcachefs (loop4): shutting down
[   95.950549][ T5838] bcachefs (loop4): going read-only
[   95.964756][ T5838] bcachefs (loop4): finished waiting for writes to stop
[   95.985238][ T5838] bcachefs (loop4): flushing journal and stopping allocators, journal seq 15
[   96.004132][ T5838] bcachefs (loop4): flushing journal and stopping allocators complete, journal seq 15
[pid  5838] umount2("./1/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5928] <... write resumed>)        = 16777216
[   96.028072][ T5836] bcachefs (loop2): shutdown complete
[   96.046413][ T5838] bcachefs (loop4): clean shutdown complete, journal seq 16
[   96.054312][ T5838] bcachefs (loop4): marking filesystem clean
[pid  5928] munmap(0x7fb414200000, 138412032) = 0
[pid  5928] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4
[pid  5928] ioctl(4, LOOP_SET_FD, 3)    = 0
[   96.207003][ T5838] bcachefs (loop4): shutdown complete
[   96.211457][ T5928] loop3: detected capacity change from 0 to 32768
[pid  5928] close(3)                    = 0
[pid  5928] close(4)                    = 0
[pid  5928] mkdir("./file0", 0777)      = 0
[   96.383316][ T5928] bcachefs (loop3): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=none,compression=lz4,nojournal_transaction_names,noexcl,read_only,version_upgrade=none
[   96.383342][ T5928]   allowing incompatible features above 0.0: (unknown version)
[   96.383353][ T5928]   features: lz4,new_siphash,inline_data,new_extent_overwrite,btree_ptr_v2,new_varint,journal_no_flush,alloc_v2,extents_across_btree_nodes
[   96.474820][ T5928] bcachefs (loop3): Using encoding defined by superblock: utf8-12.1.0
[pid  5928] mount("/dev/loop3", "./file0", "bcachefs", MS_RDONLY|MS_SYNCHRONOUS|MS_MANDLOCK|MS_POSIXACL|MS_STRICTATIME, "errors=fix_safe,version_upgrade=none,noexcl,shard_inode_numbers," <unfinished ...>
[pid  5833] <... umount2 resumed>)      = 0
[pid  5833] umount2("./1/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[   96.483268][ T5928] bcachefs (loop3): recovering from clean shutdown, journal seq 13
[pid  5833] newfstatat(AT_FDCWD, "./1/file0",  <unfinished ...>
[pid  5835] <... umount2 resumed>)      = 0
[pid  5835] umount2("./1/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5835] newfstatat(AT_FDCWD, "./1/file0",  <unfinished ...>
[pid  5833] umount2("./1/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5835] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5835] umount2("./1/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5833] openat(AT_FDCWD, "./1/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid  5835] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5833] <... openat resumed>)       = 4
[pid  5835] openat(AT_FDCWD, "./1/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid  5833] newfstatat(4, "",  <unfinished ...>
[pid  5835] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5833] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5835] getdents64(4, 0x55557569a770 /* 2 entries */, 32768) = 48
[pid  5833] getdents64(4,  <unfinished ...>
[pid  5835] getdents64(4, 0x55557569a770 /* 0 entries */, 32768) = 0
[pid  5833] <... getdents64 resumed>0x55557569a770 /* 2 entries */, 32768) = 48
[pid  5835] close(4)                    = 0
[pid  5833] getdents64(4,  <unfinished ...>
[pid  5835] rmdir("./1/file0" <unfinished ...>
[pid  5833] <... getdents64 resumed>0x55557569a770 /* 0 entries */, 32768) = 0
[pid  5835] <... rmdir resumed>)        = 0
[pid  5833] close(4 <unfinished ...>
[pid  5835] umount2("./1/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5833] <... close resumed>)        = 0
[pid  5835] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5833] rmdir("./1/file0" <unfinished ...>
[pid  5835] newfstatat(AT_FDCWD, "./1/binderfs",  <unfinished ...>
[pid  5833] <... rmdir resumed>)        = 0
[pid  5835] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] umount2("./1/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5835] unlink("./1/binderfs")      = 0
[pid  5833] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5835] getdents64(3, 0x555575692730 /* 0 entries */, 32768) = 0
[pid  5833] newfstatat(AT_FDCWD, "./1/binderfs",  <unfinished ...>
[pid  5835] close(3)                    = 0
[pid  5833] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5835] rmdir("./1" <unfinished ...>
[pid  5833] unlink("./1/binderfs" <unfinished ...>
[pid  5835] <... rmdir resumed>)        = 0
[pid  5833] <... unlink resumed>)       = 0
[pid  5835] mkdir("./2", 0777)          = 0
[pid  5835] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  5835] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  5835] close(3)                    = 0
[pid  5833] getdents64(3,  <unfinished ...>
[pid  5835] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5833] <... getdents64 resumed>0x555575692730 /* 0 entries */, 32768) = 0
[pid  5833] close(3./strace-static-x86_64: Process 5958 attached
 <unfinished ...>
[pid  5835] <... clone resumed>, child_tidptr=0x555575691690) = 5958
[pid  5833] <... close resumed>)        = 0
[pid  5958] set_robust_list(0x5555756916a0, 24) = 0
[pid  5958] chdir("./2")                = 0
[pid  5833] rmdir("./1" <unfinished ...>
[pid  5958] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5833] <... rmdir resumed>)        = 0
[pid  5958] <... prctl resumed>)        = 0
[pid  5958] setpgid(0, 0)               = 0
[pid  5958] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5833] mkdir("./2", 0777 <unfinished ...>
[pid  5958] <... openat resumed>)       = 3
[pid  5958] write(3, "1000", 4 <unfinished ...>
[pid  5833] <... mkdir resumed>)        = 0
[pid  5958] <... write resumed>)        = 4
[pid  5958] close(3)                    = 0
[pid  5833] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  5958] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5833] <... openat resumed>)       = 3
[pid  5833] ioctl(3, LOOP_CLR_FDexecuting program
 <unfinished ...>
[pid  5958] write(1, "executing program\n", 18 <unfinished ...>
[pid  5833] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  5833] close(3 <unfinished ...>
[pid  5958] <... write resumed>)        = 18
[pid  5833] <... close resumed>)        = 0
[pid  5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5959 attached
 <unfinished ...>
[pid  5958] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5958] rt_sigaction(SIGRT_1, {sa_handler=0x7fb41c745060, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb41c736210},  <unfinished ...>
[pid  5959] set_robust_list(0x5555756916a0, 24 <unfinished ...>
[pid  5958] <... rt_sigaction resumed>NULL, 8) = 0
[pid  5833] <... clone resumed>, child_tidptr=0x555575691690) = 5959
[pid  5959] <... set_robust_list resumed>) = 0
[pid  5958] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5958] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid  5959] chdir("./2" <unfinished ...>
[pid  5958] <... mmap resumed>)         = 0x7fb41c6b3000
[pid  5959] <... chdir resumed>)        = 0
[pid  5958] mprotect(0x7fb41c6b4000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid  5959] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[   96.588636][ T5928] bcachefs (loop3): accounting_read... done
[   96.623195][ T5928] bcachefs (loop3): alloc_read... done
[pid  5959] setpgid(0, 0 <unfinished ...>
[pid  5958] <... mprotect resumed>)     = 0
[pid  5959] <... setpgid resumed>)      = 0
[pid  5958] rt_sigprocmask(SIG_BLOCK, ~[],  <unfinished ...>
[pid  5959] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5958] <... rt_sigprocmask resumed>[], 8) = 0
[pid  5958] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb41c6d3990, parent_tid=0x7fb41c6d3990, exit_signal=0, stack=0x7fb41c6b3000, stack_size=0x20300, tls=0x7fb41c6d36c0}./strace-static-x86_64: Process 5960 attached
 => {parent_tid=[5960]}, 88) = 5960
[pid  5959] <... openat resumed>)       = 3
[pid  5958] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5959] write(3, "1000", 4 <unfinished ...>
[pid  5958] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5960] rseq(0x7fb41c6d3fe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid  5958] futex(0x7fb41c7b66a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5960] <... rseq resumed>)         = 0
[pid  5959] <... write resumed>)        = 4
[pid  5958] <... futex resumed>)        = 0
[pid  5960] set_robust_list(0x7fb41c6d39a0, 24 <unfinished ...>
[pid  5959] close(3 <unfinished ...>
[pid  5958] futex(0x7fb41c7b66ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid  5960] <... set_robust_list resumed>) = 0
[pid  5959] <... close resumed>)        = 0
[pid  5960] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5959] symlink("/dev/binderfs", "./binderfs" <unfinished ...>
[pid  5960] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5960] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5959] <... symlink resumed>)      = 0
executing program
[pid  5960] <... memfd_create resumed>) = 3
[pid  5959] write(1, "executing program\n", 18 <unfinished ...>
[pid  5960] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb414200000
[pid  5959] <... write resumed>)        = 18
[pid  5959] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5959] rt_sigaction(SIGRT_1, {sa_handler=0x7fb41c745060, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb41c736210}, NULL, 8) = 0
[pid  5959] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5959] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid  5836] <... umount2 resumed>)      = 0
[pid  5836] umount2("./1/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5959] <... mmap resumed>)         = 0x7fb41c6b3000
[pid  5959] mprotect(0x7fb41c6b4000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid  5836] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5959] <... mprotect resumed>)     = 0
[pid  5836] newfstatat(AT_FDCWD, "./1/file0",  <unfinished ...>
[pid  5959] rt_sigprocmask(SIG_BLOCK, ~[],  <unfinished ...>
[pid  5836] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5959] <... rt_sigprocmask resumed>[], 8) = 0
[pid  5836] umount2("./1/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5959] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb41c6d3990, parent_tid=0x7fb41c6d3990, exit_signal=0, stack=0x7fb41c6b3000, stack_size=0x20300, tls=0x7fb41c6d36c0} <unfinished ...>
[pid  5836] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5836] openat(AT_FDCWD, "./1/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid  5836] newfstatat(4, "", ./strace-static-x86_64: Process 5961 attached
{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5959] <... clone3 resumed> => {parent_tid=[5961]}, 88) = 5961
[   96.664088][ T5928] bcachefs (loop3): snapshots_read... done
[   96.712316][ T5928] bcachefs (loop3): journal_replay... done
[pid  5836] getdents64(4, 0x55557569a770 /* 2 entries */, 32768) = 48
[pid  5836] getdents64(4, 0x55557569a770 /* 0 entries */, 32768) = 0
[pid  5836] close(4)                    = 0
[pid  5836] rmdir("./1/file0")          = 0
[pid  5836] umount2("./1/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5836] newfstatat(AT_FDCWD, "./1/binderfs",  <unfinished ...>
[pid  5961] rseq(0x7fb41c6d3fe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid  5836] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5961] <... rseq resumed>)         = 0
[pid  5836] unlink("./1/binderfs" <unfinished ...>
[pid  5961] set_robust_list(0x7fb41c6d39a0, 24 <unfinished ...>
[pid  5836] <... unlink resumed>)       = 0
[pid  5961] <... set_robust_list resumed>) = 0
[pid  5961] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5836] getdents64(3,  <unfinished ...>
[pid  5961] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5836] <... getdents64 resumed>0x555575692730 /* 0 entries */, 32768) = 0
[pid  5961] futex(0x7fb41c7b66a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5836] close(3)                    = 0
[pid  5836] rmdir("./1" <unfinished ...>
[pid  5959] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5836] <... rmdir resumed>)        = 0
[pid  5959] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5959] futex(0x7fb41c7b66a8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5836] mkdir("./2", 0777 <unfinished ...>
[pid  5959] futex(0x7fb41c7b66ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid  5836] <... mkdir resumed>)        = 0
[pid  5836] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  5961] <... futex resumed>)        = 0
[pid  5836] <... openat resumed>)       = 3
[pid  5961] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5836] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  5836] close(3 <unfinished ...>
[pid  5961] <... memfd_create resumed>) = 3
[pid  5836] <... close resumed>)        = 0
[pid  5961] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5836] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5961] <... mmap resumed>)         = 0x7fb414200000
[pid  5836] <... clone resumed>, child_tidptr=0x555575691690) = 5962
./strace-static-x86_64: Process 5962 attached
[pid  5962] set_robust_list(0x5555756916a0, 24) = 0
[pid  5962] chdir("./2")                = 0
[pid  5962] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5962] setpgid(0, 0)               = 0
[pid  5962] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5962] write(3, "1000", 4)         = 4
[pid  5962] close(3)                    = 0
[pid  5962] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid  5962] write(1, "executing program\n", 18) = 18
[pid  5962] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5962] rt_sigaction(SIGRT_1, {sa_handler=0x7fb41c745060, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb41c736210}, NULL, 8) = 0
[pid  5962] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5962] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb41c6b3000
[pid  5962] mprotect(0x7fb41c6b4000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5962] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5962] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb41c6d3990, parent_tid=0x7fb41c6d3990, exit_signal=0, stack=0x7fb41c6b3000, stack_size=0x20300, tls=0x7fb41c6d36c0}./strace-static-x86_64: Process 5963 attached
 <unfinished ...>
[pid  5928] <... mount resumed>)        = 0
[pid  5963] rseq(0x7fb41c6d3fe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid  5962] <... clone3 resumed> => {parent_tid=[5963]}, 88) = 5963
[pid  5928] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid  5962] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid  5962] futex(0x7fb41c7b66a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5962] futex(0x7fb41c7b66ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid  5928] <... openat resumed>)       = 3
[pid  5963] <... rseq resumed>)         = 0
[pid  5928] chdir("./file0" <unfinished ...>
[pid  5963] set_robust_list(0x7fb41c6d39a0, 24) = 0
[pid  5928] <... chdir resumed>)        = 0
[pid  5963] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5928] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  5963] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5928] <... openat resumed>)       = 4
[pid  5963] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5928] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid  5963] <... memfd_create resumed>) = 3
[pid  5928] <... ioctl resumed>)        = 0
[   96.732172][ T5928] bcachefs (loop3): resume_logged_ops... done
[   96.754881][ T5928] bcachefs (loop3): delete_dead_inodes... done
[   96.775590][ T5928] bcachefs (loop3): done starting filesystem
[pid  5963] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5928] close(4 <unfinished ...>
[pid  5963] <... mmap resumed>)         = 0x7fb414200000
[pid  5928] <... close resumed>)        = 0
[pid  5928] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5924] <... futex resumed>)        = 0
[pid  5924] futex(0x7fb41c7b66a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5924] futex(0x7fb41c7b66ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5928] mount(NULL, ".", NULL, MS_NODEV|MS_REMOUNT|MS_MOVE|MS_POSIXACL|MS_LAZYTIME, NULL <unfinished ...>
[pid  5924] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[   96.853644][ T5928] bcachefs (loop3): going read-write
[pid  5928] <... mount resumed>)        = 0
[pid  5928] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5924] exit_group(0 <unfinished ...>
[pid  5928] futex(0x7fb41c7b66a8, FUTEX_WAIT_PRIVATE, 0, NULL) = ?
[pid  5924] <... exit_group resumed>)   = ?
[pid  5928] +++ exited with 0 +++
[pid  5924] +++ exited with 0 +++
[pid  5837] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5924, si_uid=0, si_status=0, si_utime=11 /* 0.11 s */, si_stime=40 /* 0.40 s */} ---
[pid  5837] umount2("./1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5837] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid  5837] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5837] getdents64(3, 0x555575692730 /* 4 entries */, 32768) = 112
[pid  5837] umount2("./1/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[   96.996034][ T5971] bcachefs (loop3): backpointer doesn't match extent it points to:
[   96.996056][ T5971]   u64s 9 type backpointer 0:8921088:0 len 0 ver 0: bucket=0:34:8 btree=extents level=0 data_type=user suboffset=0 len=8 gen=0 pos=1073741825:24:U32_MAX
[pid  5960] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 ...>
[   96.996074][ T5971]   u64s 8 type extent 1073741825:24:U32_MAX len 24 ver 2: durability: 1 crc: c_size 8 size 24 offset 0 nonce 0 csum chacha20_poly1305_80 5c1d:75853c64f7009f9d  compress lz4 ptr: 0:34:8 gen 0
[pid  5961] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 ...>
[   96.996093][ T5971]   u64s 9 type backpointer 0:8921088:0 len 0 ver 0: bucket=0:34:8 btree=extents level=0 data_type=user suboffset=0 len=8 gen=0 pos=1073741825:24:U32_MAX, fixing
[pid  5963] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...>
[pid  5838] <... umount2 resumed>)      = 0
[pid  5838] umount2("./1/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5838] newfstatat(AT_FDCWD, "./1/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5838] umount2("./1/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5838] openat(AT_FDCWD, "./1/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid  5838] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5838] getdents64(4, 0x55557569a770 /* 2 entries */, 32768) = 48
[pid  5838] getdents64(4, 0x55557569a770 /* 0 entries */, 32768) = 0
[pid  5838] close(4)                    = 0
[pid  5838] rmdir("./1/file0")          = 0
[pid  5838] umount2("./1/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5838] newfstatat(AT_FDCWD, "./1/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5838] unlink("./1/binderfs")      = 0
[pid  5838] getdents64(3, 0x555575692730 /* 0 entries */, 32768) = 0
[pid  5838] close(3)                    = 0
[pid  5838] rmdir("./1")                = 0
[pid  5960] <... write resumed>)        = 16777216
[   97.046372][ T5837] bcachefs (loop3): shutting down
[   97.046394][ T5837] bcachefs (loop3): going read-only
[   97.046437][ T5837] bcachefs (loop3): finished waiting for writes to stop
[pid  5960] munmap(0x7fb414200000, 138412032 <unfinished ...>
[pid  5838] mkdir("./2", 0777)          = 0
[pid  5960] <... munmap resumed>)       = 0
[pid  5960] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4
[pid  5960] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid  5838] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  5838] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  5838] close(3)                    = 0
[pid  5838] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5973 attached
 <unfinished ...>
[pid  5973] set_robust_list(0x5555756916a0, 24 <unfinished ...>
[pid  5838] <... clone resumed>, child_tidptr=0x555575691690) = 5973
[pid  5973] <... set_robust_list resumed>) = 0
[pid  5960] <... ioctl resumed>)        = 0
[   97.286076][ T5837] bcachefs (loop3): flushing journal and stopping allocators, journal seq 13
[   97.295852][ T5837] bcachefs (loop3): flushing journal and stopping allocators complete, journal seq 13
[   97.313213][ T5960] loop1: detected capacity change from 0 to 32768
[   97.323037][ T5837] bcachefs (loop3): clean shutdown complete, journal seq 14
[pid  5973] chdir("./2")                = 0
[pid  5960] close(3)                    = 0
[pid  5960] close(4)                    = 0
[pid  5960] mkdir("./file0", 0777)      = 0
[pid  5973] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5973] setpgid(0, 0 <unfinished ...>
[pid  5960] mount("/dev/loop1", "./file0", "bcachefs", MS_RDONLY|MS_SYNCHRONOUS|MS_MANDLOCK|MS_POSIXACL|MS_STRICTATIME, "errors=fix_safe,version_upgrade=none,noexcl,shard_inode_numbers," <unfinished ...>
[pid  5973] <... setpgid resumed>)      = 0
[pid  5973] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5973] write(3, "1000", 4)         = 4
[pid  5973] close(3)                    = 0
[pid  5973] symlink("/dev/binderfs", "./binderfs") = 0
[   97.346513][ T5837] bcachefs (loop3): marking filesystem clean
executing program
[pid  5973] write(1, "executing program\n", 18) = 18
[pid  5973] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5973] rt_sigaction(SIGRT_1, {sa_handler=0x7fb41c745060, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb41c736210}, NULL, 8) = 0
[pid  5973] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5973] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb41c6b3000
[pid  5973] mprotect(0x7fb41c6b4000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5973] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5973] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb41c6d3990, parent_tid=0x7fb41c6d3990, exit_signal=0, stack=0x7fb41c6b3000, stack_size=0x20300, tls=0x7fb41c6d36c0}./strace-static-x86_64: Process 5975 attached
 => {parent_tid=[5975]}, 88) = 5975
[pid  5973] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid  5973] futex(0x7fb41c7b66a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5975] rseq(0x7fb41c6d3fe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid  5973] futex(0x7fb41c7b66ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid  5975] <... rseq resumed>)         = 0
[pid  5975] set_robust_list(0x7fb41c6d39a0, 24) = 0
[pid  5975] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid  5975] memfd_create("syzkaller", 0) = 3
[pid  5975] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb414200000
[   97.490346][ T5837] bcachefs (loop3): shutdown complete
[   97.490488][ T5960] bcachefs (loop1): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=none,compression=lz4,nojournal_transaction_names,noexcl,read_only,version_upgrade=none
[pid  5963] <... write resumed>)        = 16777216
[pid  5963] munmap(0x7fb414200000, 138412032) = 0
[pid  5963] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4
[pid  5963] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  5963] close(3)                    = 0
[pid  5963] close(4)                    = 0
[pid  5963] mkdir("./file0", 0777)      = 0
[   97.582465][ T5960]   allowing incompatible features above 0.0: (unknown version)
[   97.591657][ T5960]   features: lz4,new_siphash,inline_data,new_extent_overwrite,btree_ptr_v2,new_varint,journal_no_flush,alloc_v2,extents_across_btree_nodes
[   97.606892][ T5963] loop2: detected capacity change from 0 to 32768
[pid  5963] mount("/dev/loop2", "./file0", "bcachefs", MS_RDONLY|MS_SYNCHRONOUS|MS_MANDLOCK|MS_POSIXACL|MS_STRICTATIME, "errors=fix_safe,version_upgrade=none,noexcl,shard_inode_numbers," <unfinished ...>
[pid  5961] <... write resumed>)        = 16777216
[   97.639105][ T5960] bcachefs (loop1): Using encoding defined by superblock: utf8-12.1.0
[   97.673380][ T5960] bcachefs (loop1): recovering from clean shutdown, journal seq 13
[pid  5961] munmap(0x7fb414200000, 138412032) = 0
[pid  5975] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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  5961] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5961] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  5961] close(3)                    = 0
[pid  5961] close(4)                    = 0
[pid  5961] mkdir("./file0", 0777)      = 0
[   97.745479][ T5960] bcachefs (loop1): accounting_read...
[   97.746146][ T5961] loop0: detected capacity change from 0 to 32768
[   97.761585][ T5960]  done
[   97.764398][ T5960] bcachefs (loop1): alloc_read... done
[   97.783493][ T5960] bcachefs (loop1): snapshots_read... done
[   97.824448][ T5960] bcachefs (loop1): journal_replay... done
[   97.888187][ T5960] bcachefs (loop1): resume_logged_ops... done
[   97.891104][ T5963] bcachefs (loop2): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=none,compression=lz4,nojournal_transaction_names,noexcl,read_only,version_upgrade=none
[   97.917704][ T5963]   allowing incompatible features above 0.0: (unknown version)
[   97.929010][ T5963]   features: lz4,new_siphash,inline_data,new_extent_overwrite,btree_ptr_v2,new_varint,journal_no_flush,alloc_v2,extents_across_btree_nodes
[   97.937513][ T5960] bcachefs (loop1): delete_dead_inodes...
[   97.943468][ T5963] bcachefs (loop2): Using encoding defined by superblock: utf8-12.1.0
[   97.957705][ T5963] bcachefs (loop2): recovering from clean shutdown, journal seq 13
[pid  5961] mount("/dev/loop0", "./file0", "bcachefs", MS_RDONLY|MS_SYNCHRONOUS|MS_MANDLOCK|MS_POSIXACL|MS_STRICTATIME, "errors=fix_safe,version_upgrade=none,noexcl,shard_inode_numbers," <unfinished ...>
[pid  5960] <... mount resumed>)        = 0
[pid  5960] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid  5960] chdir("./file0")            = 0
[   97.987978][ T5960]  done
[   98.003512][ T5961] bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=none,compression=lz4,nojournal_transaction_names,noexcl,read_only,version_upgrade=none
[pid  5960] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4
[   98.003537][ T5961]   allowing incompatible features above 0.0: (unknown version)
[   98.003549][ T5961]   features: lz4,new_siphash,inline_data,new_extent_overwrite,btree_ptr_v2,new_varint,journal_no_flush,alloc_v2,extents_across_btree_nodes
[   98.024299][ T5960] bcachefs (loop1): done starting filesystem
[   98.060840][ T5963] bcachefs (loop2): accounting_read...
[   98.066329][ T5961] bcachefs (loop0): Using encoding defined by superblock: utf8-12.1.0
[pid  5960] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid  5975] <... write resumed>)        = 16777216
[pid  5960] <... ioctl resumed>)        = 0
[pid  5960] close(4)                    = 0
[pid  5975] munmap(0x7fb414200000, 138412032 <unfinished ...>
[pid  5960] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5958] <... futex resumed>)        = 0
[pid  5960] futex(0x7fb41c7b66a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5958] futex(0x7fb41c7b66a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5960] <... futex resumed>)        = 0
[pid  5958] <... futex resumed>)        = 1
[pid  5960] mount(NULL, ".", NULL, MS_NODEV|MS_REMOUNT|MS_MOVE|MS_POSIXACL|MS_LAZYTIME, NULL <unfinished ...>
[pid  5958] futex(0x7fb41c7b66ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5975] <... munmap resumed>)       = 0
[   98.107665][ T5961] bcachefs (loop0): recovering from clean shutdown, journal seq 13
[   98.131698][ T5963]  done
[   98.135777][ T5963] bcachefs (loop2): alloc_read... done
[   98.137981][ T5960] bcachefs (loop1): going read-write
[pid  5975] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4
[pid  5975] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid  5958] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[   98.143394][ T5963] bcachefs (loop2): snapshots_read... done
[   98.176025][ T5975] loop4: detected capacity change from 0 to 32768
[pid  5975] <... ioctl resumed>)        = 0
[pid  5975] close(3)                    = 0
[pid  5975] close(4)                    = 0
[pid  5975] mkdir("./file0", 0777)      = 0
[   98.218521][ T5963] bcachefs (loop2): journal_replay... done
[   98.247539][ T5963] bcachefs (loop2): resume_logged_ops... done
[pid  5975] mount("/dev/loop4", "./file0", "bcachefs", MS_RDONLY|MS_SYNCHRONOUS|MS_MANDLOCK|MS_POSIXACL|MS_STRICTATIME, "errors=fix_safe,version_upgrade=none,noexcl,shard_inode_numbers," <unfinished ...>
[pid  5960] <... mount resumed>)        = 0
[pid  5960] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5960] futex(0x7fb41c7b66a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5958] exit_group(0)               = ?
[pid  5960] <... futex resumed>)        = ?
[pid  5960] +++ exited with 0 +++
[pid  5958] +++ exited with 0 +++
[pid  5835] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5958, si_uid=0, si_status=0, si_utime=9 /* 0.09 s */, si_stime=43 /* 0.43 s */} ---
[pid  5963] <... mount resumed>)        = 0
[pid  5835] umount2("./2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5835] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid  5963] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...>
[   98.284446][ T5963] bcachefs (loop2): delete_dead_inodes... done
[   98.299074][ T5961] bcachefs (loop0): accounting_read...
[pid  5835] newfstatat(3, "",  <unfinished ...>
[pid  5963] <... openat resumed>)       = 3
[pid  5835] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5835] getdents64(3, 0x555575692730 /* 4 entries */, 32768) = 112
[pid  5835] umount2("./2/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5963] chdir("./file0")            = 0
[pid  5963] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4
[pid  5963] ioctl(4, LOOP_CLR_FD)       = 0
[pid  5963] close(4)                    = 0
[pid  5963] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5962] <... futex resumed>)        = 0
[pid  5962] futex(0x7fb41c7b66a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5962] futex(0x7fb41c7b66ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[   98.326152][ T5986] bcachefs (loop1): backpointer doesn't match extent it points to:
[   98.326174][ T5986]   u64s 9 type backpointer 0:8921088:0 len 0 ver 0: bucket=0:34:8 btree=extents level=0 data_type=user suboffset=0 len=8 gen=0 pos=1073741825:24:U32_MAX
[   98.326192][ T5986]   u64s 8 type extent 1073741825:24:U32_MAX len 24 ver 2: durability: 1 crc: c_size 8 size 24 offset 0 nonce 0 csum chacha20_poly1305_80 5c1d:75853c64f7009f9d  compress lz4 ptr: 0:34:8 gen 0
[   98.326212][ T5986]   u64s 9 type backpointer 0:8921088:0 len 0 ver 0: bucket=0:34:8 btree=extents level=0 data_type=user suboffset=0 len=8 gen=0 pos=1073741825:24:U32_MAX, fixing
[   98.344139][ T5963] bcachefs (loop2): done starting filesystem
[   98.373926][ T5961]  done
[   98.373945][ T5961] bcachefs (loop0): alloc_read... done
[   98.377541][ T5961] bcachefs (loop0): snapshots_read... done
[   98.397973][ T5975] bcachefs (loop4): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=none,compression=lz4,nojournal_transaction_names,noexcl,read_only,version_upgrade=none
[pid  5963] mount(NULL, ".", NULL, MS_NODEV|MS_REMOUNT|MS_MOVE|MS_POSIXACL|MS_LAZYTIME, NULL <unfinished ...>
[pid  5962] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  5837] <... umount2 resumed>)      = 0
[pid  5837] umount2("./1/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5837] newfstatat(AT_FDCWD, "./1/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5837] umount2("./1/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5837] openat(AT_FDCWD, "./1/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid  5837] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5837] getdents64(4, 0x55557569a770 /* 2 entries */, 32768) = 48
[pid  5837] getdents64(4, 0x55557569a770 /* 0 entries */, 32768) = 0
[pid  5837] close(4)                    = 0
[pid  5837] rmdir("./1/file0")          = 0
[pid  5837] umount2("./1/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5837] newfstatat(AT_FDCWD, "./1/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5837] unlink("./1/binderfs")      = 0
[pid  5837] getdents64(3, 0x555575692730 /* 0 entries */, 32768) = 0
[pid  5837] close(3)                    = 0
[pid  5837] rmdir("./1")                = 0
[pid  5837] mkdir("./2", 0777)          = 0
[pid  5837] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  5837] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  5837] close(3)                    = 0
[pid  5837] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555575691690) = 5989
./strace-static-x86_64: Process 5989 attached
[   98.421303][ T5963] bcachefs (loop2): going read-write
[   98.461137][ T5975]   allowing incompatible features above 0.0: (unknown version)
[   98.491572][ T5975]   features: lz4,new_siphash,inline_data,new_extent_overwrite,btree_ptr_v2,new_varint,journal_no_flush,alloc_v2,extents_across_btree_nodes
[   98.513299][ T5986] bcachefs (loop1): Detected missing backpointers in bucket 34, now have 1/128 with missing
[pid  5989] set_robust_list(0x5555756916a0, 24) = 0
[pid  5989] chdir("./2")                = 0
[pid  5989] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[   98.513320][ T5986]   scheduling recovery pass check_extents_to_backpointers (17)
[   98.539922][ T5975] bcachefs (loop4): Using encoding defined by superblock: utf8-12.1.0
[   98.540045][ T5975] bcachefs (loop4): recovering from clean shutdown, journal seq 13
[   98.540923][ T5835] bcachefs (loop1): shutting down
[   98.540939][ T5835] bcachefs (loop1): going read-only
[   98.540964][ T5835] bcachefs (loop1): finished waiting for writes to stop
executing program
[pid  5989] setpgid(0, 0)               = 0
[pid  5989] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5989] write(3, "1000", 4)         = 4
[pid  5989] close(3)                    = 0
[pid  5989] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5989] write(1, "executing program\n", 18) = 18
[pid  5989] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5989] rt_sigaction(SIGRT_1, {sa_handler=0x7fb41c745060, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb41c736210}, NULL, 8) = 0
[pid  5989] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5989] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb41c6b3000
[pid  5989] mprotect(0x7fb41c6b4000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5989] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5989] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb41c6d3990, parent_tid=0x7fb41c6d3990, exit_signal=0, stack=0x7fb41c6b3000, stack_size=0x20300, tls=0x7fb41c6d36c0} => {parent_tid=[5996]}, 88) = 5996
./strace-static-x86_64: Process 5996 attached
[pid  5989] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid  5989] futex(0x7fb41c7b66a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5989] futex(0x7fb41c7b66ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid  5996] rseq(0x7fb41c6d3fe0, 0x20, 0, 0x53053053) = 0
[pid  5996] set_robust_list(0x7fb41c6d39a0, 24) = 0
[pid  5996] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid  5996] memfd_create("syzkaller", 0) = 3
[   98.568000][ T5961] bcachefs (loop0): journal_replay...
[   98.591816][ T5835] bcachefs (loop1): flushing journal and stopping allocators, journal seq 15
[   98.614383][ T5835] bcachefs (loop1): flushing journal and stopping allocators complete, journal seq 15
[   98.633680][ T5975] bcachefs (loop4): accounting_read...
[   98.634977][ T5961]  done
[pid  5996] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb414200000
[   98.647013][ T5835] bcachefs (loop1): clean shutdown complete, journal seq 16
[   98.656752][ T5975]  done
[   98.664805][ T5975] bcachefs (loop4): alloc_read... done
[   98.671757][ T5975] bcachefs (loop4): snapshots_read...
[   98.672823][ T5961] bcachefs (loop0): resume_logged_ops...
[   98.679332][ T5835] bcachefs (loop1): marking filesystem clean
[pid  5963] <... mount resumed>)        = 0
[pid  5963] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5963] futex(0x7fb41c7b66a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5962] exit_group(0)               = ?
[pid  5963] <... futex resumed>)        = ?
[pid  5963] +++ exited with 0 +++
[pid  5962] +++ exited with 0 +++
[   98.682918][ T5999] bcachefs (loop2): backpointer doesn't match extent it points to:
[   98.695856][ T5961]  done
[   98.702317][ T5961] bcachefs (loop0): delete_dead_inodes... done
[   98.715291][ T5975]  done
[   98.722266][ T5961] bcachefs (loop0): done starting filesystem
[pid  5961] <... mount resumed>)        = 0
[pid  5836] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5962, si_uid=0, si_status=0, si_utime=8 /* 0.08 s */, si_stime=45 /* 0.45 s */} ---
[pid  5836] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  5961] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid  5836] <... restart_syscall resumed>) = 0
[pid  5961] <... openat resumed>)       = 3
[pid  5961] chdir("./file0" <unfinished ...>
[pid  5836] umount2("./2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5836] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid  5836] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5836] getdents64(3, 0x555575692730 /* 4 entries */, 32768) = 112
[   98.745053][ T5999]   u64s 9 type backpointer 0:8921088:0 len 0 ver 0: bucket=0:34:8 btree=extents level=0 data_type=user suboffset=0 len=8 gen=0 pos=1073741825:24:U32_MAX
[   98.745946][ T5975] bcachefs (loop4): journal_replay...
[   98.760805][ T5999]   u64s 8 type extent 1073741825:24:U32_MAX len 24 ver 2: durability: 1 crc: c_size 8 size 24 offset 0 nonce 0 csum chacha20_poly1305_80 5c1d:75853c64f7009f9d  compress lz4 ptr: 0:34:8 gen 0
[pid  5836] umount2("./2/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5961] <... chdir resumed>)        = 0
[pid  5961] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5961] ioctl(4, LOOP_CLR_FD)       = 0
[pid  5961] close(4)                    = 0
[pid  5961] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5961] futex(0x7fb41c7b66a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5959] <... futex resumed>)        = 0
[   98.795655][ T5836] bcachefs (loop2): shutting down
[   98.797184][ T5835] bcachefs (loop1): shutdown complete
[   98.806010][ T5836] bcachefs (loop2): going read-only
[   98.806557][ T5999]   u64s 9 type backpointer 0:8921088:0 len 0 ver 0: bucket=0:34:8 btree=extents level=0 data_type=user suboffset=0 len=8 gen=0 pos=1073741825:24:U32_MAX, fixing
[   98.811282][ T5836] bcachefs (loop2): finished waiting for writes to stop
[   98.830018][ T5975]  done
[pid  5959] futex(0x7fb41c7b66a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5961] <... futex resumed>)        = 0
[pid  5959] <... futex resumed>)        = 1
[pid  5961] mount(NULL, ".", NULL, MS_NODEV|MS_REMOUNT|MS_MOVE|MS_POSIXACL|MS_LAZYTIME, NULL <unfinished ...>
[   98.867277][ T5961] bcachefs (loop0): going read-write
[   98.878679][ T5975] bcachefs (loop4): resume_logged_ops... done
[   98.891638][ T5975] bcachefs (loop4): delete_dead_inodes... done
[   98.902844][ T5836] bcachefs (loop2): flushing journal and stopping allocators, journal seq 13
[pid  5959] futex(0x7fb41c7b66ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[   98.915225][ T5975] bcachefs (loop4): done starting filesystem
[pid  5975] <... mount resumed>)        = 0
[pid  5975] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid  5975] chdir("./file0")            = 0
[pid  5975] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4
[pid  5975] ioctl(4, LOOP_CLR_FD)       = 0
[pid  5975] close(4)                    = 0
[pid  5975] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5973] <... futex resumed>)        = 0
[pid  5973] futex(0x7fb41c7b66a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5975] mount(NULL, ".", NULL, MS_NODEV|MS_REMOUNT|MS_MOVE|MS_POSIXACL|MS_LAZYTIME, NULL <unfinished ...>
[pid  5973] <... futex resumed>)        = 0
[   98.945087][ T5836] bcachefs (loop2): flushing journal and stopping allocators complete, journal seq 13
[   98.970194][ T5975] bcachefs (loop4): going read-write
[   98.971537][ T5836] bcachefs (loop2): clean shutdown complete, journal seq 14
[pid  5973] futex(0x7fb41c7b66ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[pid  5961] <... mount resumed>)        = 0
[pid  5961] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5961] futex(0x7fb41c7b66a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5959] exit_group(0 <unfinished ...>
[pid  5961] <... futex resumed>)        = ?
[pid  5959] <... exit_group resumed>)   = ?
[pid  5961] +++ exited with 0 +++
[pid  5959] +++ exited with 0 +++
[   98.995274][ T5836] bcachefs (loop2): marking filesystem clean
[   99.021797][ T6009] bcachefs (loop0): backpointer doesn't match extent it points to:
[pid  5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5959, si_uid=0, si_status=0, si_utime=9 /* 0.09 s */, si_stime=48 /* 0.48 s */} ---
[pid  5833] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  5833] umount2("./2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid  5833] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5833] getdents64(3, 0x555575692730 /* 4 entries */, 32768) = 112
[   99.021818][ T6009]   u64s 9 type backpointer 0:8921088:0 len 0 ver 0: bucket=0:34:8 btree=extents level=0 data_type=user suboffset=0 len=8 gen=0 pos=1073741825:24:U32_MAX
[pid  5833] umount2("./2/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[   99.021836][ T6009]   u64s 8 type extent 1073741825:24:U32_MAX len 24 ver 2: durability: 1 crc: c_size 8 size 24 offset 0 nonce 0 csum chacha20_poly1305_80 5c1d:75853c64f7009f9d  compress lz4 ptr: 0:34:8 gen 0
[   99.021857][ T6009]   u64s 9 type backpointer 0:8921088:0 len 0 ver 0: bucket=0:34:8 btree=extents level=0 data_type=user suboffset=0 len=8 gen=0 pos=1073741825:24:U32_MAX, fixing
[pid  5996] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...>
[pid  5975] <... mount resumed>)        = 0
[pid  5975] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5975] futex(0x7fb41c7b66a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5973] exit_group(0)               = ?
[pid  5975] <... futex resumed>)        = ?
[pid  5975] +++ exited with 0 +++
[pid  5973] +++ exited with 0 +++
[pid  5838] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5973, si_uid=0, si_status=0, si_utime=10 /* 0.10 s */, si_stime=36 /* 0.36 s */} ---
[   99.097284][ T5833] bcachefs (loop0): shutting down
[   99.097307][ T5833] bcachefs (loop0): going read-only
[   99.097335][ T5833] bcachefs (loop0): finished waiting for writes to stop
[pid  5838] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  5838] umount2("./2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5838] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid  5838] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5838] getdents64(3, 0x555575692730 /* 4 entries */, 32768) = 112
[   99.100314][ T5836] bcachefs (loop2): shutdown complete
[   99.201065][ T6017] bcachefs (loop4): backpointer doesn't match extent it points to:
[   99.201102][ T6017]   u64s 9 type backpointer 0:8921088:0 len 0 ver 0: bucket=0:34:8 btree=extents level=0 data_type=user suboffset=0 len=8 gen=0 pos=1073741825:24:U32_MAX
[   99.201119][ T6017]   u64s 8 type extent 1073741825:24:U32_MAX len 24 ver 2: durability: 1 crc: c_size 8 size 24 offset 0 nonce 0 csum chacha20_poly1305_80 5c1d:75853c64f7009f9d  compress lz4 ptr: 0:34:8 gen 0
[   99.201139][ T6017]   u64s 9 type backpointer 0:8921088:0 len 0 ver 0: bucket=0:34:8 btree=extents level=0 data_type=user suboffset=0 len=8 gen=0 pos=1073741825:24:U32_MAX, fixing
[   99.206149][ T6017] bcachefs (loop4): Detected missing backpointers in bucket 34, now have 1/128 with missing
[   99.206170][ T6017]   scheduling recovery pass check_extents_to_backpointers (17)
[   99.265797][ T5838] bcachefs (loop4): shutting down
[   99.265818][ T5838] bcachefs (loop4): going read-only
[   99.265846][ T5838] bcachefs (loop4): finished waiting for writes to stop
[   99.295030][ T5838] bcachefs (loop4): flushing journal and stopping allocators, journal seq 14
[   99.331474][ T5833] bcachefs (loop0): flushing journal and stopping allocators, journal seq 13
[   99.365133][ T5833] bcachefs (loop0): flushing journal and stopping allocators complete, journal seq 13
[   99.406393][ T5838] bcachefs (loop4): flushing journal and stopping allocators complete, journal seq 15
[   99.408122][ T5833] bcachefs (loop0): clean shutdown complete, journal seq 14
[   99.424972][ T5838] bcachefs (loop4): clean shutdown complete, journal seq 16
[   99.432942][ T5838] bcachefs (loop4): marking filesystem clean
[   99.450538][ T5833] bcachefs (loop0): marking filesystem clean
[pid  5838] umount2("./2/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5996] <... write resumed>)        = 16777216
[pid  5996] munmap(0x7fb414200000, 138412032) = 0
[pid  5996] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4
[pid  5996] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  5996] close(3)                    = 0
[pid  5996] close(4)                    = 0
[pid  5996] mkdir("./file0", 0777)      = 0
[   99.537424][ T5996] loop3: detected capacity change from 0 to 32768
[   99.573173][ T5838] bcachefs (loop4): shutdown complete
[pid  5996] mount("/dev/loop3", "./file0", "bcachefs", MS_RDONLY|MS_SYNCHRONOUS|MS_MANDLOCK|MS_POSIXACL|MS_STRICTATIME, "errors=fix_safe,version_upgrade=none,noexcl,shard_inode_numbers," <unfinished ...>
[pid  5835] <... umount2 resumed>)      = 0
[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)
[   99.720566][ T5996] bcachefs (loop3): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=none,compression=lz4,nojournal_transaction_names,noexcl,read_only,version_upgrade=none
[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, 0x55557569a770 /* 2 entries */, 32768) = 48
[pid  5835] getdents64(4, 0x55557569a770 /* 0 entries */, 32768) = 0
[pid  5835] close(4)                    = 0
[   99.720594][ T5996]   allowing incompatible features above 0.0: (unknown version)
[   99.720608][ T5996]   features: lz4,new_siphash,inline_data,new_extent_overwrite,btree_ptr_v2,new_varint,journal_no_flush,alloc_v2,extents_across_btree_nodes
[pid  5835] rmdir("./2/file0")          = 0
[pid  5835] umount2("./2/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5835] newfstatat(AT_FDCWD, "./2/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5835] unlink("./2/binderfs")      = 0
[pid  5835] getdents64(3, 0x555575692730 /* 0 entries */, 32768) = 0
[pid  5835] close(3)                    = 0
[pid  5835] rmdir("./2")                = 0
[pid  5835] mkdir("./3", 0777)          = 0
[pid  5835] openat(AT_FDCWD, "/dev/loop1", 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=0x555575691690) = 6020
./strace-static-x86_64: Process 6020 attached
[pid  6020] set_robust_list(0x5555756916a0, 24) = 0
[pid  6020] chdir("./3")                = 0
[   99.741514][ T5833] bcachefs (loop0): shutdown complete
[   99.831074][ T5996] bcachefs (loop3): Using encoding defined by superblock: utf8-12.1.0
[   99.853823][ T5996] bcachefs (loop3): recovering from clean shutdown, journal seq 13
[pid  6020] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5836] <... umount2 resumed>)      = 0
[pid  6020] setpgid(0, 0)               = 0
[pid  6020] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5836] umount2("./2/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  6020] write(3, "1000", 4 <unfinished ...>
[pid  5836] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  6020] <... write resumed>)        = 4
[pid  6020] close(3 <unfinished ...>
[pid  5836] newfstatat(AT_FDCWD, "./2/file0",  <unfinished ...>
[pid  6020] <... close resumed>)        = 0
[pid  6020] symlink("/dev/binderfs", "./binderfs" <unfinished ...>
[pid  5836] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
executing program
[pid  6020] <... symlink resumed>)      = 0
[pid  5836] umount2("./2/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  6020] write(1, "executing program\n", 18 <unfinished ...>
[pid  5836] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  6020] <... write resumed>)        = 18
[pid  5836] openat(AT_FDCWD, "./2/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid  6020] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5836] <... openat resumed>)       = 4
[pid  6020] rt_sigaction(SIGRT_1, {sa_handler=0x7fb41c745060, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb41c736210}, NULL, 8) = 0
[pid  5836] newfstatat(4, "",  <unfinished ...>
[pid  6020] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  6020] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid  5836] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  6020] <... mmap resumed>)         = 0x7fb41c6b3000
[pid  5836] getdents64(4,  <unfinished ...>
[pid  6020] mprotect(0x7fb41c6b4000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5836] <... getdents64 resumed>0x55557569a770 /* 2 entries */, 32768) = 48
[pid  6020] rt_sigprocmask(SIG_BLOCK, ~[],  <unfinished ...>
[pid  5836] getdents64(4,  <unfinished ...>
[pid  6020] <... rt_sigprocmask resumed>[], 8) = 0
[pid  5836] <... getdents64 resumed>0x55557569a770 /* 0 entries */, 32768) = 0
[pid  5836] close(4 <unfinished ...>
[pid  6020] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb41c6d3990, parent_tid=0x7fb41c6d3990, exit_signal=0, stack=0x7fb41c6b3000, stack_size=0x20300, tls=0x7fb41c6d36c0} <unfinished ...>
[pid  5836] <... close resumed>)        = 0
[pid  5836] rmdir("./2/file0"./strace-static-x86_64: Process 6021 attached
 <unfinished ...>
[pid  6020] <... clone3 resumed> => {parent_tid=[6021]}, 88) = 6021
[pid  5836] <... rmdir resumed>)        = 0
[pid  6020] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5836] umount2("./2/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  6020] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  6020] futex(0x7fb41c7b66a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5836] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  6020] futex(0x7fb41c7b66ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid  5836] newfstatat(AT_FDCWD, "./2/binderfs",  <unfinished ...>
[pid  6021] rseq(0x7fb41c6d3fe0, 0x20, 0, 0x53053053) = 0
[pid  6021] set_robust_list(0x7fb41c6d39a0, 24) = 0
[pid  6021] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid  5836] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5836] unlink("./2/binderfs")      = 0
[pid  6021] memfd_create("syzkaller", 0) = 3
[pid  6021] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb414200000
[pid  5836] getdents64(3, 0x555575692730 /* 0 entries */, 32768) = 0
[pid  5836] close(3)                    = 0
[pid  5836] rmdir("./2")                = 0
[pid  5836] mkdir("./3", 0777)          = 0
[pid  5836] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  5836] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  5836] close(3)                    = 0
[   99.985741][ T5996] bcachefs (loop3): accounting_read... done
[   99.994450][ T5996] bcachefs (loop3): alloc_read... done
[pid  5836] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6022 attached
 <unfinished ...>
[pid  6022] set_robust_list(0x5555756916a0, 24 <unfinished ...>
[pid  5836] <... clone resumed>, child_tidptr=0x555575691690) = 6022
[pid  6022] <... set_robust_list resumed>) = 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) = 3
[  100.034954][ T5996] bcachefs (loop3): snapshots_read... done
[pid  6022] write(3, "1000", 4)         = 4
[pid  6022] close(3)                    = 0
executing program
[pid  6022] symlink("/dev/binderfs", "./binderfs") = 0
[pid  6022] write(1, "executing program\n", 18) = 18
[pid  6022] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  6022] rt_sigaction(SIGRT_1, {sa_handler=0x7fb41c745060, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb41c736210}, NULL, 8) = 0
[pid  6022] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  6022] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb41c6b3000
[pid  6022] mprotect(0x7fb41c6b4000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  6022] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  6022] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb41c6d3990, parent_tid=0x7fb41c6d3990, exit_signal=0, stack=0x7fb41c6b3000, stack_size=0x20300, tls=0x7fb41c6d36c0} => {parent_tid=[6023]}, 88) = 6023
./strace-static-x86_64: Process 6023 attached
[pid  6023] rseq(0x7fb41c6d3fe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid  6022] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  6023] <... rseq resumed>)         = 0
[pid  6023] set_robust_list(0x7fb41c6d39a0, 24 <unfinished ...>
[pid  6022] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  6023] <... set_robust_list resumed>) = 0
[pid  5838] <... umount2 resumed>)      = 0
[pid  6023] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  6022] futex(0x7fb41c7b66a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  6023] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  6022] <... futex resumed>)        = 0
[pid  6023] memfd_create("syzkaller", 0 <unfinished ...>
[pid  6022] futex(0x7fb41c7b66ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid  5838] umount2("./2/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  6023] <... memfd_create resumed>) = 3
[pid  5838] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  6023] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb414200000
[pid  5838] newfstatat(AT_FDCWD, "./2/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5838] umount2("./2/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5996] <... mount resumed>)        = 0
[pid  5838] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5838] openat(AT_FDCWD, "./2/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid  5838] newfstatat(4, "",  <unfinished ...>
[pid  5996] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid  5996] chdir("./file0")            = 0
[pid  5996] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  5838] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5838] getdents64(4,  <unfinished ...>
[pid  5996] <... openat resumed>)       = 4
[pid  5838] <... getdents64 resumed>0x55557569a770 /* 2 entries */, 32768) = 48
[pid  5996] ioctl(4, LOOP_CLR_FD)       = 0
[pid  5996] close(4)                    = 0
[pid  5838] getdents64(4,  <unfinished ...>
[pid  5996] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5838] <... getdents64 resumed>0x55557569a770 /* 0 entries */, 32768) = 0
[pid  5989] <... futex resumed>)        = 0
[pid  5989] futex(0x7fb41c7b66a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5989] futex(0x7fb41c7b66ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5996] <... futex resumed>)        = 1
[  100.125812][ T5996] bcachefs (loop3): journal_replay... done
[  100.137816][ T5996] bcachefs (loop3): resume_logged_ops... done
[  100.146248][ T5996] bcachefs (loop3): delete_dead_inodes... done
[  100.166830][ T5996] bcachefs (loop3): done starting filesystem
[pid  5996] mount(NULL, ".", NULL, MS_NODEV|MS_REMOUNT|MS_MOVE|MS_POSIXACL|MS_LAZYTIME, NULL <unfinished ...>
[pid  5838] close(4)                    = 0
[pid  5838] rmdir("./2/file0")          = 0
[pid  5838] umount2("./2/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5838] newfstatat(AT_FDCWD, "./2/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5838] unlink("./2/binderfs")      = 0
[pid  5838] getdents64(3, 0x555575692730 /* 0 entries */, 32768) = 0
[pid  5838] close(3)                    = 0
[  100.215070][ T5996] bcachefs (loop3): going read-write
[pid  5838] rmdir("./2")                = 0
[pid  5989] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  5838] mkdir("./3", 0777)          = 0
[pid  5838] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  5838] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  5838] close(3)                    = 0
[pid  5838] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6029 attached
 <unfinished ...>
[pid  6029] set_robust_list(0x5555756916a0, 24) = 0
[pid  6029] chdir("./3")                = 0
[pid  5838] <... clone resumed>, child_tidptr=0x555575691690) = 6029
[pid  6029] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  6029] setpgid(0, 0)               = 0
[pid  6029] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  6029] write(3, "1000", 4 <unfinished ...>
[pid  6021] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...>
[pid  6029] <... write resumed>)        = 4
[pid  6029] close(3)                    = 0
[pid  6029] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid  6029] write(1, "executing program\n", 18) = 18
[pid  6029] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  6029] rt_sigaction(SIGRT_1, {sa_handler=0x7fb41c745060, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb41c736210}, NULL, 8) = 0
[pid  6029] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  6029] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb41c6b3000
[pid  5996] <... mount resumed>)        = 0
[pid  6029] mprotect(0x7fb41c6b4000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid  5996] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  6029] <... mprotect resumed>)     = 0
[pid  5996] <... futex resumed>)        = 0
[pid  5989] exit_group(0 <unfinished ...>
[pid  6029] rt_sigprocmask(SIG_BLOCK, ~[],  <unfinished ...>
[pid  5989] <... exit_group resumed>)   = ?
[pid  6029] <... rt_sigprocmask resumed>[], 8) = 0
[pid  5996] +++ exited with 0 +++
[pid  6029] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb41c6d3990, parent_tid=0x7fb41c6d3990, exit_signal=0, stack=0x7fb41c6b3000, stack_size=0x20300, tls=0x7fb41c6d36c0} <unfinished ...>
[pid  5989] +++ exited with 0 +++
[pid  5837] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5989, si_uid=0, si_status=0, si_utime=10 /* 0.10 s */, si_stime=44 /* 0.44 s */} ---
./strace-static-x86_64: Process 6034 attached
[pid  6034] rseq(0x7fb41c6d3fe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid  6029] <... clone3 resumed> => {parent_tid=[6034]}, 88) = 6034
[pid  6029] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5837] umount2("./2", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  6034] <... rseq resumed>)         = 0
[pid  6029] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  6034] set_robust_list(0x7fb41c6d39a0, 24 <unfinished ...>
[pid  6029] futex(0x7fb41c7b66a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  6034] <... set_robust_list resumed>) = 0
[pid  6029] <... futex resumed>)        = 0
[pid  6034] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[  100.390019][ T6032] bcachefs (loop3): backpointer doesn't match extent it points to:
[  100.390040][ T6032]   u64s 9 type backpointer 0:8921088:0 len 0 ver 0: bucket=0:34:8 btree=extents level=0 data_type=user suboffset=0 len=8 gen=0 pos=1073741825:24:U32_MAX
[pid  6029] futex(0x7fb41c7b66ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid  6034] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  6034] memfd_create("syzkaller", 0) = 3
[pid  6034] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5837] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  6034] <... mmap resumed>)         = 0x7fb414200000
[pid  5837] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid  5837] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5837] getdents64(3, 0x555575692730 /* 4 entries */, 32768) = 112
[  100.390058][ T6032]   u64s 8 type extent 1073741825:24:U32_MAX len 24 ver 2: durability: 1 crc: c_size 8 size 24 offset 0 nonce 0 csum chacha20_poly1305_80 5c1d:75853c64f7009f9d  compress lz4 ptr: 0:34:8 gen 0
[  100.390078][ T6032]   u64s 9 type backpointer 0:8921088:0 len 0 ver 0: bucket=0:34:8 btree=extents level=0 data_type=user suboffset=0 len=8 gen=0 pos=1073741825:24:U32_MAX, fixing
[  100.473612][ T6032] bcachefs (loop3): Detected missing backpointers in bucket 34, now have 1/128 with missing
[  100.473633][ T6032]   scheduling recovery pass check_extents_to_backpointers (17)
[  100.518545][ T5837] bcachefs (loop3): shutting down
[  100.523624][ T5837] bcachefs (loop3): going read-only
[  100.539146][ T5837] bcachefs (loop3): finished waiting for writes to stop
[  100.557483][ T5837] bcachefs (loop3): flushing journal and stopping allocators, journal seq 15
[pid  5837] umount2("./2/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5833] <... umount2 resumed>)      = 0
[pid  5833] umount2("./2/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./2/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] umount2("./2/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] openat(AT_FDCWD, "./2/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, 0x55557569a770 /* 2 entries */, 32768) = 48
[pid  5833] getdents64(4, 0x55557569a770 /* 0 entries */, 32768) = 0
[pid  5833] close(4)                    = 0
[pid  5833] rmdir("./2/file0")          = 0
[pid  5833] umount2("./2/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./2/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] unlink("./2/binderfs")      = 0
[pid  6023] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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  5833] getdents64(3, 0x555575692730 /* 0 entries */, 32768) = 0
[pid  5833] close(3)                    = 0
[pid  5833] rmdir("./2")                = 0
[pid  5833] mkdir("./3", 0777)          = 0
[  100.586256][ T5837] bcachefs (loop3): flushing journal and stopping allocators complete, journal seq 15
[  100.625810][ T5837] bcachefs (loop3): clean shutdown complete, journal seq 16
[pid  5833] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  5833] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  5833] close(3)                    = 0
[pid  5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6035 attached
, child_tidptr=0x555575691690) = 6035
[pid  6035] set_robust_list(0x5555756916a0, 24) = 0
[pid  6035] chdir("./3")                = 0
[pid  6035] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  6035] setpgid(0, 0)               = 0
[pid  6035] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[  100.634122][ T5837] bcachefs (loop3): marking filesystem clean
[pid  6035] write(3, "1000", 4)         = 4
[pid  6035] close(3)                    = 0
executing program
[pid  6035] symlink("/dev/binderfs", "./binderfs") = 0
[pid  6035] write(1, "executing program\n", 18 <unfinished ...>
[pid  6034] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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  6035] <... write resumed>)        = 18
[pid  6035] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  6035] rt_sigaction(SIGRT_1, {sa_handler=0x7fb41c745060, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb41c736210}, NULL, 8) = 0
[pid  6035] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  6035] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb41c6b3000
[pid  6035] mprotect(0x7fb41c6b4000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  6035] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  6035] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb41c6d3990, parent_tid=0x7fb41c6d3990, exit_signal=0, stack=0x7fb41c6b3000, stack_size=0x20300, tls=0x7fb41c6d36c0}./strace-static-x86_64: Process 6036 attached
 => {parent_tid=[6036]}, 88) = 6036
[pid  6036] rseq(0x7fb41c6d3fe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid  6035] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  6036] <... rseq resumed>)         = 0
[pid  6035] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  6036] set_robust_list(0x7fb41c6d39a0, 24 <unfinished ...>
[pid  6035] futex(0x7fb41c7b66a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  6036] <... set_robust_list resumed>) = 0
[pid  6035] <... futex resumed>)        = 0
[pid  6035] futex(0x7fb41c7b66ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid  6036] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid  6036] memfd_create("syzkaller", 0) = 3
[pid  6036] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb414200000
[  100.767368][ T5837] bcachefs (loop3): shutdown complete
[pid  6021] <... write resumed>)        = 16777216
[pid  6021] munmap(0x7fb414200000, 138412032) = 0
[pid  6036] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...>
[pid  6021] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4
[pid  6021] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid  6023] <... write resumed>)        = 16777216
[pid  6021] <... ioctl resumed>)        = 0
[pid  6021] close(3)                    = 0
[pid  6023] munmap(0x7fb414200000, 138412032 <unfinished ...>
[pid  6021] close(4 <unfinished ...>
[pid  6023] <... munmap resumed>)       = 0
[pid  6021] <... close resumed>)        = 0
[pid  6021] mkdir("./file0", 0777)      = 0
[pid  6023] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  6021] mount("/dev/loop1", "./file0", "bcachefs", MS_RDONLY|MS_SYNCHRONOUS|MS_MANDLOCK|MS_POSIXACL|MS_STRICTATIME, "errors=fix_safe,version_upgrade=none,noexcl,shard_inode_numbers," <unfinished ...>
[pid  6023] <... openat resumed>)       = 4
[  101.007013][ T6021] loop1: detected capacity change from 0 to 32768
[pid  6023] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  6023] close(3)                    = 0
[pid  6023] close(4)                    = 0
[pid  6023] mkdir("./file0", 0777)      = 0
[  101.069361][ T6023] loop2: detected capacity change from 0 to 32768
[pid  6023] mount("/dev/loop2", "./file0", "bcachefs", MS_RDONLY|MS_SYNCHRONOUS|MS_MANDLOCK|MS_POSIXACL|MS_STRICTATIME, "errors=fix_safe,version_upgrade=none,noexcl,shard_inode_numbers," <unfinished ...>
[pid  6034] <... write resumed>)        = 16777216
[pid  6034] munmap(0x7fb414200000, 138412032) = 0
[pid  6034] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4
[pid  6034] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  6036] <... write resumed>)        = 16777216
[pid  6034] close(3)                    = 0
[pid  6034] close(4 <unfinished ...>
[pid  6036] munmap(0x7fb414200000, 138412032 <unfinished ...>
[pid  6034] <... close resumed>)        = 0
[pid  6034] mkdir("./file0", 0777)      = 0
[  101.193259][ T6034] loop4: detected capacity change from 0 to 32768
[pid  6034] mount("/dev/loop4", "./file0", "bcachefs", MS_RDONLY|MS_SYNCHRONOUS|MS_MANDLOCK|MS_POSIXACL|MS_STRICTATIME, "errors=fix_safe,version_upgrade=none,noexcl,shard_inode_numbers," <unfinished ...>
[pid  6036] <... munmap resumed>)       = 0
[pid  6036] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  6036] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  6036] close(3)                    = 0
[pid  6036] close(4)                    = 0
[pid  6036] mkdir("./file0", 0777)      = 0
[  101.283901][ T6036] loop0: detected capacity change from 0 to 32768
[  101.485138][ T6021] bcachefs (loop1): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=none,compression=lz4,nojournal_transaction_names,noexcl,read_only,version_upgrade=none
[  101.485165][ T6021]   allowing incompatible features above 0.0: (unknown version)
[  101.485178][ T6021]   features: lz4,new_siphash,inline_data,new_extent_overwrite,btree_ptr_v2,new_varint,journal_no_flush,alloc_v2,extents_across_btree_nodes
[  101.538186][ T6021] bcachefs (loop1): Using encoding defined by superblock: utf8-12.1.0
[  101.547101][ T6021] bcachefs (loop1): recovering from clean shutdown, journal seq 13
[  101.579361][ T6021] bcachefs (loop1): accounting_read...
[  101.587654][ T6023] bcachefs (loop2): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=none,compression=lz4,nojournal_transaction_names,noexcl,read_only,version_upgrade=none
[  101.587681][ T6023]   allowing incompatible features above 0.0: (unknown version)
[  101.587694][ T6023]   features: lz4,new_siphash,inline_data,new_extent_overwrite,btree_ptr_v2,new_varint,journal_no_flush,alloc_v2,extents_across_btree_nodes
[  101.621276][ T6021]  done
[  101.621294][ T6021] bcachefs (loop1): alloc_read... done
[  101.622431][ T6021] bcachefs (loop1): snapshots_read... done
[  101.632538][ T6021] bcachefs (loop1): journal_replay... done
[  101.636937][ T6021] bcachefs (loop1): resume_logged_ops... done
[  101.672601][ T6023] bcachefs (loop2): Using encoding defined by superblock: utf8-12.1.0
[  101.683836][ T6034] bcachefs (loop4): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=none,compression=lz4,nojournal_transaction_names,noexcl,read_only,version_upgrade=none
[  101.690504][ T6023] bcachefs (loop2): recovering from clean shutdown, journal seq 13
[  101.724763][ T6034]   allowing incompatible features above 0.0: (unknown version)
[  101.728433][ T6021] bcachefs (loop1): delete_dead_inodes... done
[  101.755744][ T6034]   features: lz4,new_siphash,inline_data,new_extent_overwrite,btree_ptr_v2,new_varint,journal_no_flush,alloc_v2,extents_across_btree_nodes
[  101.773944][ T6021] bcachefs (loop1): done starting filesystem
[pid  6036] mount("/dev/loop0", "./file0", "bcachefs", MS_RDONLY|MS_SYNCHRONOUS|MS_MANDLOCK|MS_POSIXACL|MS_STRICTATIME, "errors=fix_safe,version_upgrade=none,noexcl,shard_inode_numbers," <unfinished ...>
[pid  6021] <... mount resumed>)        = 0
[pid  6021] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid  6021] chdir("./file0")            = 0
[pid  6021] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4
[pid  6021] ioctl(4, LOOP_CLR_FD)       = 0
[pid  6021] close(4)                    = 0
[pid  6021] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  6021] futex(0x7fb41c7b66a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  6020] <... futex resumed>)        = 0
[pid  6020] futex(0x7fb41c7b66a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  6021] <... futex resumed>)        = 0
[pid  6020] <... futex resumed>)        = 1
[pid  6021] mount(NULL, ".", NULL, MS_NODEV|MS_REMOUNT|MS_MOVE|MS_POSIXACL|MS_LAZYTIME, NULL <unfinished ...>
[  101.778098][ T6036] bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=none,compression=lz4,nojournal_transaction_names,noexcl,read_only,version_upgrade=none
[  101.810645][ T6034] bcachefs (loop4): Using encoding defined by superblock: utf8-12.1.0
[  101.817022][ T6023] bcachefs (loop2): accounting_read...
[  101.823582][ T6021] bcachefs (loop1): going read-write
[  101.824940][ T6034] bcachefs (loop4): recovering from clean shutdown, journal seq 13
[pid  6020] futex(0x7fb41c7b66ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[  101.832304][ T6023]  done
[  101.844820][ T6036]   allowing incompatible features above 0.0: (unknown version)
[  101.853432][ T6036]   features: lz4,new_siphash,inline_data,new_extent_overwrite,btree_ptr_v2,new_varint,journal_no_flush,alloc_v2,extents_across_btree_nodes
[  101.875631][ T6023] bcachefs (loop2): alloc_read... done
[  101.904902][ T6023] bcachefs (loop2): snapshots_read... done
[  101.932023][ T6034] bcachefs (loop4): accounting_read...
[  101.933186][ T6023] bcachefs (loop2): journal_replay...
[  101.939766][ T6036] bcachefs (loop0): Using encoding defined by superblock: utf8-12.1.0
[  101.962065][ T6036] bcachefs (loop0): recovering from clean shutdown, journal seq 13
[  101.963070][ T6034]  done
[  101.973211][ T6023]  done
[  101.979755][ T6048] bcachefs (loop1): backpointer doesn't match extent it points to:
[  101.979772][ T6048]   u64s 9 type backpointer 0:8921088:0 len 0 ver 0: bucket=0:34:8 btree=extents level=0 data_type=user suboffset=0 len=8 gen=0 pos=1073741825:24:U32_MAX
[pid  5837] <... umount2 resumed>)      = 0
[pid  6021] <... mount resumed>)        = 0
[  101.979790][ T6048]   u64s 8 type extent 1073741825:24:U32_MAX len 24 ver 2: durability: 1 crc: c_size 8 size 24 offset 0 nonce 0 csum chacha20_poly1305_80 5c1d:75853c64f7009f9d  compress lz4 ptr: 0:34:8 gen 0
[  101.979809][ T6048]   u64s 9 type backpointer 0:8921088:0 len 0 ver 0: bucket=0:34:8 btree=extents level=0 data_type=user suboffset=0 len=8 gen=0 pos=1073741825:24:U32_MAX, fixing
[  101.979827][ T6034] bcachefs (loop4): alloc_read...
[  102.004115][ T6048] bcachefs (loop1): Detected missing backpointers in bucket 34, now have 1/128 with missing
[  102.049994][ T6036] bcachefs (loop0): accounting_read...
[pid  6021] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  6021] futex(0x7fb41c7b66a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5837] umount2("./2/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5837] newfstatat(AT_FDCWD, "./2/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5837] umount2("./2/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5837] openat(AT_FDCWD, "./2/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[  102.055406][ T6023] bcachefs (loop2): resume_logged_ops...
[  102.055515][ T6036]  done
[  102.062888][ T6048]   scheduling recovery pass check_extents_to_backpointers (17)
[  102.069463][ T6036] bcachefs (loop0): alloc_read...
[  102.070479][ T6034]  done
[  102.080015][ T6023]  done
[  102.082852][ T6034] bcachefs (loop4): snapshots_read...
[  102.086316][ T6023] bcachefs (loop2): delete_dead_inodes...
[  102.089492][ T6034]  done
[  102.095127][ T6036]  done
[pid  5837] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  6020] exit_group(0 <unfinished ...>
[pid  6021] <... futex resumed>)        = ?
[pid  6020] <... exit_group resumed>)   = ?
[pid  6021] +++ exited with 0 +++
[pid  5837] getdents64(4,  <unfinished ...>
[pid  6020] +++ exited with 0 +++
[pid  5837] <... getdents64 resumed>0x55557569a770 /* 2 entries */, 32768) = 48
[pid  5835] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6020, si_uid=0, si_status=0, si_utime=11 /* 0.11 s */, si_stime=40 /* 0.40 s */} ---
[pid  5835] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  5837] getdents64(4,  <unfinished ...>
[pid  5835] <... restart_syscall resumed>) = 0
[pid  5837] <... getdents64 resumed>0x55557569a770 /* 0 entries */, 32768) = 0
[pid  5837] close(4)                    = 0
[pid  5837] rmdir("./2/file0")          = 0
[pid  5837] umount2("./2/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5837] newfstatat(AT_FDCWD, "./2/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5837] unlink("./2/binderfs")      = 0
[pid  5837] getdents64(3, 0x555575692730 /* 0 entries */, 32768) = 0
[pid  5837] close(3)                    = 0
[pid  5837] rmdir("./2")                = 0
[pid  6023] <... mount resumed>)        = 0
[pid  5837] mkdir("./3", 0777)          = 0
[pid  5835] umount2("./3", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5837] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  5837] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  5837] close(3)                    = 0
[pid  5837] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6050 attached
 <unfinished ...>
[  102.105027][ T6034] bcachefs (loop4): journal_replay... done
[  102.115255][ T6036] bcachefs (loop0): snapshots_read...
[  102.118025][ T6023]  done
[  102.118699][ T6036]  done
[  102.125012][ T6023] bcachefs (loop2): done starting filesystem
[  102.126583][ T6034] bcachefs (loop4): resume_logged_ops... done
[  102.142701][ T6034] bcachefs (loop4): delete_dead_inodes... done
[  102.146983][ T6036] bcachefs (loop0): journal_replay... done
[pid  6023] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid  6050] set_robust_list(0x5555756916a0, 24 <unfinished ...>
[pid  6023] <... openat resumed>)       = 3
[pid  5835] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  6050] <... set_robust_list resumed>) = 0
[pid  6050] chdir("./3")                = 0
[pid  6050] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  6023] chdir("./file0" <unfinished ...>
[pid  6050] <... prctl resumed>)        = 0
[pid  6023] <... chdir resumed>)        = 0
[pid  6023] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  5837] <... clone resumed>, child_tidptr=0x555575691690) = 6050
[pid  6023] <... openat resumed>)       = 4
[pid  6050] setpgid(0, 0 <unfinished ...>
[pid  6023] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid  5835] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid  6050] <... setpgid resumed>)      = 0
[pid  6023] <... ioctl resumed>)        = 0
[pid  5835] <... openat resumed>)       = 3
[pid  6050] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  6023] close(4 <unfinished ...>
[pid  5835] newfstatat(3, "",  <unfinished ...>
[pid  6050] <... openat resumed>)       = 3
[pid  6023] <... close resumed>)        = 0
[pid  6050] write(3, "1000", 4 <unfinished ...>
[pid  6023] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  6022] <... futex resumed>)        = 0
[pid  5835] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  6023] mount(NULL, ".", NULL, MS_NODEV|MS_REMOUNT|MS_MOVE|MS_POSIXACL|MS_LAZYTIME, NULL <unfinished ...>
[pid  6022] futex(0x7fb41c7b66a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  6050] <... write resumed>)        = 4
[pid  6022] <... futex resumed>)        = 0
[pid  5835] getdents64(3,  <unfinished ...>
[pid  6022] futex(0x7fb41c7b66ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5835] <... getdents64 resumed>0x555575692730 /* 4 entries */, 32768) = 112
[pid  5835] umount2("./3/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  6050] close(3executing program
)                    = 0
[pid  6050] symlink("/dev/binderfs", "./binderfs") = 0
[pid  6050] write(1, "executing program\n", 18) = 18
[pid  6050] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  6050] rt_sigaction(SIGRT_1, {sa_handler=0x7fb41c745060, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb41c736210}, NULL, 8) = 0
[pid  6050] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  6050] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb41c6b3000
[pid  6050] mprotect(0x7fb41c6b4000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  6050] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  6050] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb41c6d3990, parent_tid=0x7fb41c6d3990, exit_signal=0, stack=0x7fb41c6b3000, stack_size=0x20300, tls=0x7fb41c6d36c0} => {parent_tid=[6051]}, 88) = 6051
[  102.159545][ T6036] bcachefs (loop0): resume_logged_ops... done
[  102.168281][ T6036] bcachefs (loop0): delete_dead_inodes...
[  102.174403][ T6023] bcachefs (loop2): going read-write
[  102.196308][ T6036]  done
[  102.197233][ T6034] bcachefs (loop4): done starting filesystem
[pid  6050] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid  6050] futex(0x7fb41c7b66a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  6050] futex(0x7fb41c7b66ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 6051 attached
 <unfinished ...>
[pid  6051] rseq(0x7fb41c6d3fe0, 0x20, 0, 0x53053053) = 0
[pid  6051] set_robust_list(0x7fb41c6d39a0, 24) = 0
[pid  6051] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid  6051] memfd_create("syzkaller", 0) = 3
[pid  6051] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb414200000
[pid  6036] <... mount resumed>)        = 0
[pid  6034] <... mount resumed>)        = 0
[pid  6036] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid  6022] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  6036] <... openat resumed>)       = 3
[pid  6034] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid  6034] chdir("./file0")            = 0
[pid  6034] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4
[pid  6034] ioctl(4, LOOP_CLR_FD)       = 0
[pid  6034] close(4)                    = 0
[pid  6036] chdir("./file0")            = 0
[pid  6034] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  6036] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  6034] <... futex resumed>)        = 1
[pid  6034] futex(0x7fb41c7b66a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  6036] <... openat resumed>)       = 4
[  102.209248][ T6036] bcachefs (loop0): done starting filesystem
[  102.220934][ T5835] bcachefs (loop1): shutting down
[  102.237182][ T5835] bcachefs (loop1): going read-only
[  102.246623][ T5835] bcachefs (loop1): finished waiting for writes to stop
[pid  6029] <... futex resumed>)        = 0
[pid  6036] ioctl(4, LOOP_CLR_FD)       = 0
[pid  6029] futex(0x7fb41c7b66a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  6036] close(4 <unfinished ...>
[pid  6029] <... futex resumed>)        = 1
[pid  6029] futex(0x7fb41c7b66ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  6036] <... close resumed>)        = 0
[pid  6034] <... futex resumed>)        = 0
[pid  6034] mount(NULL, ".", NULL, MS_NODEV|MS_REMOUNT|MS_MOVE|MS_POSIXACL|MS_LAZYTIME, NULL <unfinished ...>
[pid  6036] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  6035] <... futex resumed>)        = 0
[pid  6036] mount(NULL, ".", NULL, MS_NODEV|MS_REMOUNT|MS_MOVE|MS_POSIXACL|MS_LAZYTIME, NULL <unfinished ...>
[pid  6035] futex(0x7fb41c7b66a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  6035] futex(0x7fb41c7b66ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  6029] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  6029] futex(0x7fb41c7b66ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[  102.268018][ T5835] bcachefs (loop1): flushing journal and stopping allocators, journal seq 14
[  102.278324][ T5835] bcachefs (loop1): flushing journal and stopping allocators complete, journal seq 14
[  102.279750][ T6034] bcachefs (loop4): going read-write
[  102.297622][ T6036] bcachefs (loop0): going read-write
[pid  6035] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  6023] <... mount resumed>)        = 0
[pid  6023] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  6023] futex(0x7fb41c7b66a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  6022] exit_group(0 <unfinished ...>
[pid  6023] <... futex resumed>)        = ?
[pid  6022] <... exit_group resumed>)   = ?
[pid  6023] +++ exited with 0 +++
[pid  6022] +++ exited with 0 +++
[pid  5836] --- 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=44 /* 0.44 s */} ---
[  102.348546][ T5835] bcachefs (loop1): clean shutdown complete, journal seq 15
[  102.364201][ T5835] bcachefs (loop1): marking filesystem clean
[pid  5836] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  5836] umount2("./3", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5836] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid  5836] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5836] getdents64(3, 0x555575692730 /* 4 entries */, 32768) = 112
[  102.393367][ T6066] bcachefs (loop2): backpointer doesn't match extent it points to:
[  102.393388][ T6066]   u64s 9 type backpointer 0:8921088:0 len 0 ver 0: bucket=0:34:8 btree=extents level=0 data_type=user suboffset=0 len=8 gen=0 pos=1073741825:24:U32_MAX
[pid  5836] umount2("./3/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  6034] <... mount resumed>)        = 0
[pid  6034] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  6034] futex(0x7fb41c7b66a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  6029] exit_group(0 <unfinished ...>
[pid  6034] <... futex resumed>)        = ?
[pid  6029] <... exit_group resumed>)   = ?
[pid  6034] +++ exited with 0 +++
[pid  6029] +++ exited with 0 +++
[pid  5838] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6029, si_uid=0, si_status=0, si_utime=10 /* 0.10 s */, si_stime=43 /* 0.43 s */} ---
[pid  5838] umount2("./3", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5838] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid  5838] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5838] getdents64(3, 0x555575692730 /* 4 entries */, 32768) = 112
[  102.393406][ T6066]   u64s 8 type extent 1073741825:24:U32_MAX len 24 ver 2: durability: 1 crc: c_size 8 size 24 offset 0 nonce 0 csum chacha20_poly1305_80 5c1d:75853c64f7009f9d  compress lz4 ptr: 0:34:8 gen 0
[  102.393425][ T6066]   u64s 9 type backpointer 0:8921088:0 len 0 ver 0: bucket=0:34:8 btree=extents level=0 data_type=user suboffset=0 len=8 gen=0 pos=1073741825:24:U32_MAX, fixing
[pid  5838] umount2("./3/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  6036] <... mount resumed>)        = 0
[pid  6036] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  6035] exit_group(0 <unfinished ...>
[pid  6036] <... futex resumed>)        = 0
[pid  6035] <... exit_group resumed>)   = ?
[pid  6036] +++ exited with 0 +++
[pid  6035] +++ exited with 0 +++
[pid  5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6035, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=42 /* 0.42 s */} ---
[pid  5833] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  5833] umount2("./3", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid  5833] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5833] getdents64(3, 0x555575692730 /* 4 entries */, 32768) = 112
[pid  5833] umount2("./3/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[  102.460639][ T5836] bcachefs (loop2): shutting down
[  102.460658][ T5836] bcachefs (loop2): going read-only
[  102.460685][ T5836] bcachefs (loop2): finished waiting for writes to stop
[  102.524160][ T6073] bcachefs (loop4): backpointer doesn't match extent it points to:
[  102.524181][ T6073]   u64s 9 type backpointer 0:8921088:0 len 0 ver 0: bucket=0:34:8 btree=extents level=0 data_type=user suboffset=0 len=8 gen=0 pos=1073741825:24:U32_MAX
[  102.524198][ T6073]   u64s 8 type extent 1073741825:24:U32_MAX len 24 ver 2: durability: 1 crc: c_size 8 size 24 offset 0 nonce 0 csum chacha20_poly1305_80 5c1d:75853c64f7009f9d  compress lz4 ptr: 0:34:8 gen 0
[  102.524217][ T6073]   u64s 9 type backpointer 0:8921088:0 len 0 ver 0: bucket=0:34:8 btree=extents level=0 data_type=user suboffset=0 len=8 gen=0 pos=1073741825:24:U32_MAX, fixing
[  102.526545][ T6073] bcachefs (loop4): Detected missing backpointers in bucket 34, now have 1/128 with missing
[  102.526563][ T6073]   scheduling recovery pass check_extents_to_backpointers (17)
[  102.546085][ T5835] bcachefs (loop1): shutdown complete
[  102.563635][ T5838] bcachefs (loop4): shutting down
[  102.563652][ T5838] bcachefs (loop4): going read-only
[  102.563677][ T5838] bcachefs (loop4): finished waiting for writes to stop
[  102.573287][ T6077] bcachefs (loop0): backpointer doesn't match extent it points to:
[pid  6051] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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
[  102.573304][ T6077]   u64s 9 type backpointer 0:8921088:0 len 0 ver 0: bucket=0:34:8 btree=extents level=0 data_type=user suboffset=0 len=8 gen=0 pos=1073741825:24:U32_MAX
[pid  6051] munmap(0x7fb414200000, 138412032) = 0
[pid  6051] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4
[pid  6051] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  6051] close(3)                    = 0
[pid  6051] close(4)                    = 0
[pid  6051] mkdir("./file0", 0777)      = 0
[  102.573321][ T6077]   u64s 8 type extent 1073741825:24:U32_MAX len 24 ver 2: durability: 1 crc: c_size 8 size 24 offset 0 nonce 0 csum chacha20_poly1305_80 5c1d:75853c64f7009f9d  compress lz4 ptr: 0:34:8 gen 0
[  102.573340][ T6077]   u64s 9 type backpointer 0:8921088:0 len 0 ver 0: bucket=0:34:8 btree=extents level=0 data_type=user suboffset=0 len=8 gen=0 pos=1073741825:24:U32_MAX, fixing
[  102.578591][ T6077] bcachefs (loop0): Detected missing backpointers in bucket 34, now have 1/128 with missing
[  102.578609][ T6077]   scheduling recovery pass check_extents_to_backpointers (17)
[  102.588843][ T5838] bcachefs (loop4): flushing journal and stopping allocators, journal seq 14
[  102.594893][ T5838] bcachefs (loop4): flushing journal and stopping allocators complete, journal seq 15
[  102.595767][ T5838] bcachefs (loop4): clean shutdown complete, journal seq 16
[  102.596497][ T5838] bcachefs (loop4): marking filesystem clean
[  102.607264][ T5833] bcachefs (loop0): shutting down
[  102.607282][ T5833] bcachefs (loop0): going read-only
[  102.607310][ T5833] bcachefs (loop0): finished waiting for writes to stop
[  102.617321][ T5833] bcachefs (loop0): flushing journal and stopping allocators, journal seq 14
[  102.619637][ T5833] bcachefs (loop0): flushing journal and stopping allocators complete, journal seq 15
[  102.620333][ T5833] bcachefs (loop0): clean shutdown complete, journal seq 16
[  102.621041][ T5833] bcachefs (loop0): marking filesystem clean
[  102.699388][ T5833] bcachefs (loop0): shutdown complete
[  102.707797][ T5838] bcachefs (loop4): shutdown complete
[  102.989455][ T6051] loop3: detected capacity change from 0 to 32768
[  103.129033][ T6051] bcachefs (loop3): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=none,compression=lz4,nojournal_transaction_names,noexcl,read_only,version_upgrade=none
[  103.129061][ T6051]   allowing incompatible features above 0.0: (unknown version)
[  103.129074][ T6051]   features: lz4,new_siphash,inline_data,new_extent_overwrite,btree_ptr_v2,new_varint,journal_no_flush,alloc_v2,extents_across_btree_nodes
[  103.129105][ T6051] bcachefs (loop3): Using encoding defined by superblock: utf8-12.1.0
[  103.129237][ T6051] bcachefs (loop3): recovering from clean shutdown, journal seq 13
[pid  6051] mount("/dev/loop3", "./file0", "bcachefs", MS_RDONLY|MS_SYNCHRONOUS|MS_MANDLOCK|MS_POSIXACL|MS_STRICTATIME, "errors=fix_safe,version_upgrade=none,noexcl,shard_inode_numbers," <unfinished ...>
[pid  5835] <... umount2 resumed>)      = 0
[  103.325917][ T6051] bcachefs (loop3): accounting_read...
[  103.337672][ T5836] bcachefs (loop2): flushing journal and stopping allocators, journal seq 13
[  103.376820][ T5836] bcachefs (loop2): flushing journal and stopping allocators complete, journal seq 13
[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  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, 0x55557569a770 /* 2 entries */, 32768) = 48
[pid  5835] getdents64(4, 0x55557569a770 /* 0 entries */, 32768) = 0
[pid  5835] close(4)                    = 0
[pid  5835] rmdir("./3/file0")          = 0
[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] getdents64(3, 0x555575692730 /* 0 entries */, 32768) = 0
[pid  5835] close(3)                    = 0
[pid  5835] rmdir("./3")                = 0
[pid  5833] <... umount2 resumed>)      = 0
[pid  5833] umount2("./3/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5835] mkdir("./4", 0777 <unfinished ...>
[pid  5833] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5835] <... mkdir resumed>)        = 0
[pid  5835] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[  103.398196][ T6051]  done
[  103.405773][ T6051] bcachefs (loop3): alloc_read...
[  103.412347][ T5836] bcachefs (loop2): clean shutdown complete, journal seq 14
[  103.427628][ T6051]  done
[  103.430439][ T6051] bcachefs (loop3): snapshots_read... done
[pid  5835] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  5835] close(3 <unfinished ...>
[pid  5838] <... umount2 resumed>)      = 0
[pid  5835] <... close resumed>)        = 0
[pid  5833] newfstatat(AT_FDCWD, "./3/file0",  <unfinished ...>
[pid  5838] umount2("./3/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5835] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5833] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5838] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5833] umount2("./3/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5838] newfstatat(AT_FDCWD, "./3/file0",  <unfinished ...>
[pid  5833] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5838] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] openat(AT_FDCWD, "./3/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid  5838] umount2("./3/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] <... openat resumed>)       = 4
[pid  5838] openat(AT_FDCWD, "./3/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid  5833] newfstatat(4, "",  <unfinished ...>
[pid  5838] <... openat resumed>)       = 4
[pid  5833] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5838] newfstatat(4, "",  <unfinished ...>
[pid  5833] getdents64(4,  <unfinished ...>
[pid  5838] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5833] <... getdents64 resumed>0x55557569a770 /* 2 entries */, 32768) = 48
[pid  5838] getdents64(4,  <unfinished ...>
[pid  5833] getdents64(4,  <unfinished ...>
[pid  5838] <... getdents64 resumed>0x55557569a770 /* 2 entries */, 32768) = 48
[pid  5833] <... getdents64 resumed>0x55557569a770 /* 0 entries */, 32768) = 0
[pid  5833] close(4 <unfinished ...>
[pid  5838] getdents64(4,  <unfinished ...>
[pid  5833] <... close resumed>)        = 0
./strace-static-x86_64: Process 6080 attached
[pid  5838] <... getdents64 resumed>0x55557569a770 /* 0 entries */, 32768) = 0
[pid  5833] rmdir("./3/file0" <unfinished ...>
[pid  5838] close(4 <unfinished ...>
[pid  5835] <... clone resumed>, child_tidptr=0x555575691690) = 6080
[pid  5833] <... rmdir resumed>)        = 0
[pid  5838] <... close resumed>)        = 0
[pid  6080] set_robust_list(0x5555756916a0, 24) = 0
[pid  5838] rmdir("./3/file0" <unfinished ...>
[  103.464309][ T5836] bcachefs (loop2): marking filesystem clean
[  103.478639][ T6051] bcachefs (loop3): journal_replay... done
[  103.491369][ T6051] bcachefs (loop3): resume_logged_ops... done
[pid  5833] umount2("./3/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  6080] chdir("./4" <unfinished ...>
[pid  5838] <... rmdir resumed>)        = 0
[pid  5833] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  6080] <... chdir resumed>)        = 0
[pid  5838] umount2("./3/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5833] newfstatat(AT_FDCWD, "./3/binderfs",  <unfinished ...>
[pid  6051] <... mount resumed>)        = 0
[pid  6080] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5838] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5833] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  6080] <... prctl resumed>)        = 0
[pid  6051] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid  5838] newfstatat(AT_FDCWD, "./3/binderfs",  <unfinished ...>
[pid  5833] unlink("./3/binderfs" <unfinished ...>
[pid  6080] setpgid(0, 0 <unfinished ...>
[pid  6051] <... openat resumed>)       = 3
[pid  5838] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  6080] <... setpgid resumed>)      = 0
[pid  5833] <... unlink resumed>)       = 0
[pid  5838] unlink("./3/binderfs" <unfinished ...>
[pid  6080] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  6051] chdir("./file0" <unfinished ...>
[pid  5838] <... unlink resumed>)       = 0
[pid  5833] getdents64(3,  <unfinished ...>
[pid  6080] <... openat resumed>)       = 3
[pid  6051] <... chdir resumed>)        = 0
[pid  5838] getdents64(3,  <unfinished ...>
[pid  5833] <... getdents64 resumed>0x555575692730 /* 0 entries */, 32768) = 0
[pid  6051] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  5838] <... getdents64 resumed>0x555575692730 /* 0 entries */, 32768) = 0
[pid  5833] close(3 <unfinished ...>
[pid  6051] <... openat resumed>)       = 4
[pid  5838] close(3 <unfinished ...>
[pid  6080] write(3, "1000", 4 <unfinished ...>
[pid  5838] <... close resumed>)        = 0
[pid  5833] <... close resumed>)        = 0
[pid  6080] <... write resumed>)        = 4
[pid  5838] rmdir("./3" <unfinished ...>
[pid  5833] rmdir("./3" <unfinished ...>
[pid  6051] ioctl(4, LOOP_CLR_FD)       = 0
[pid  5838] <... rmdir resumed>)        = 0
[pid  6051] close(4 <unfinished ...>
[pid  5833] <... rmdir resumed>)        = 0
[pid  6051] <... close resumed>)        = 0
[pid  5838] mkdir("./4", 0777 <unfinished ...>
[pid  5833] mkdir("./4", 0777 <unfinished ...>
[pid  6051] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  6050] <... futex resumed>)        = 0
[pid  6051] futex(0x7fb41c7b66a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  6050] futex(0x7fb41c7b66a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5833] <... mkdir resumed>)        = 0
[pid  6051] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  6050] <... futex resumed>)        = 0
[pid  5838] <... mkdir resumed>)        = 0
[pid  5833] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[  103.508684][ T6051] bcachefs (loop3): delete_dead_inodes... done
[  103.511919][ T5836] bcachefs (loop2): shutdown complete
[  103.520499][ T6051] bcachefs (loop3): done starting filesystem
[pid  6051] mount(NULL, ".", NULL, MS_NODEV|MS_REMOUNT|MS_MOVE|MS_POSIXACL|MS_LAZYTIME, NULL <unfinished ...>
[pid  6050] futex(0x7fb41c7b66ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5833] <... openat resumed>)       = 3
[pid  6080] close(3 <unfinished ...>
[pid  5838] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  5833] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  6080] <... close resumed>)        = 0
[pid  5833] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  5833] close(3 <unfinished ...>
[pid  6080] symlink("/dev/binderfs", "./binderfs" <unfinished ...>
[pid  5833] <... close resumed>)        = 0
[pid  6080] <... symlink resumed>)      = 0
[pid  5838] <... openat resumed>)       = 3
[pid  5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6086 attached
 <unfinished ...>
[pid  6086] set_robust_list(0x5555756916a0, 24 <unfinished ...>
[pid  5833] <... clone resumed>, child_tidptr=0x555575691690) = 6086
executing program
[pid  5838] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  5838] close(3)                    = 0
[pid  5838] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  6080] write(1, "executing program\n", 18) = 18
[pid  6080] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  6080] rt_sigaction(SIGRT_1, {sa_handler=0x7fb41c745060, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb41c736210}, NULL, 8) = 0
[pid  6080] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  6080] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb41c6b3000
[pid  6080] mprotect(0x7fb41c6b4000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  6080] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  6080] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb41c6d3990, parent_tid=0x7fb41c6d3990, exit_signal=0, stack=0x7fb41c6b3000, stack_size=0x20300, tls=0x7fb41c6d36c0} => {parent_tid=[6088]}, 88) = 6088
[pid  6080] rt_sigprocmask(SIG_SETMASK, [], ./strace-static-x86_64: Process 6087 attached
NULL, 8) = 0
[  103.562944][ T6051] bcachefs (loop3): going read-write
[pid  6080] futex(0x7fb41c7b66a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5838] <... clone resumed>, child_tidptr=0x555575691690) = 6087
[pid  6086] <... set_robust_list resumed>) = 0
[pid  6080] <... futex resumed>)        = 0
./strace-static-x86_64: Process 6088 attached
[pid  6086] chdir("./4" <unfinished ...>
[pid  6088] rseq(0x7fb41c6d3fe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid  6087] set_robust_list(0x5555756916a0, 24 <unfinished ...>
[pid  6088] <... rseq resumed>)         = 0
[pid  6087] <... set_robust_list resumed>) = 0
[pid  6088] set_robust_list(0x7fb41c6d39a0, 24 <unfinished ...>
[pid  6087] chdir("./4" <unfinished ...>
[pid  6080] futex(0x7fb41c7b66ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid  6088] <... set_robust_list resumed>) = 0
[pid  6087] <... chdir resumed>)        = 0
[pid  6088] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  6087] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  6088] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  6087] <... prctl resumed>)        = 0
[pid  6050] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  6088] memfd_create("syzkaller", 0 <unfinished ...>
[pid  6087] setpgid(0, 0 <unfinished ...>
[pid  6088] <... memfd_create resumed>) = 3
[pid  6087] <... setpgid resumed>)      = 0
[pid  6088] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  6087] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  6088] <... mmap resumed>)         = 0x7fb414200000
[pid  6087] <... openat resumed>)       = 3
[pid  6087] write(3, "1000", 4 <unfinished ...>
[pid  6086] <... chdir resumed>)        = 0
[pid  6087] <... write resumed>)        = 4
executing program
[pid  6086] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  6087] close(3)                    = 0
[pid  6087] symlink("/dev/binderfs", "./binderfs" <unfinished ...>
[pid  6086] <... prctl resumed>)        = 0
[pid  6087] <... symlink resumed>)      = 0
[pid  6086] setpgid(0, 0 <unfinished ...>
[pid  6087] write(1, "executing program\n", 18) = 18
[pid  6087] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  6086] <... setpgid resumed>)      = 0
[pid  6087] rt_sigaction(SIGRT_1, {sa_handler=0x7fb41c745060, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb41c736210},  <unfinished ...>
[pid  6086] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  6087] <... rt_sigaction resumed>NULL, 8) = 0
[pid  6086] <... openat resumed>)       = 3
[pid  6087] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  6087] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid  6086] write(3, "1000", 4)         = 4
[pid  6086] close(3)                    = 0
[pid  6086] symlink("/dev/binderfs", "./binderfs" <unfinished ...>
[pid  6087] <... mmap resumed>)         = 0x7fb41c6b3000
[pid  6086] <... symlink resumed>)      = 0
[pid  6087] mprotect(0x7fb41c6b4000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  6087] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  6087] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb41c6d3990, parent_tid=0x7fb41c6d3990, exit_signal=0, stack=0x7fb41c6b3000, stack_size=0x20300, tls=0x7fb41c6d36c0}./strace-static-x86_64: Process 6089 attached
 <unfinished ...>
[pid  6089] rseq(0x7fb41c6d3fe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid  6087] <... clone3 resumed> => {parent_tid=[6089]}, 88) = 6089
[pid  6089] <... rseq resumed>)         = 0
[pid  6087] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  6089] set_robust_list(0x7fb41c6d39a0, 24) = 0
[pid  6087] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  6089] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  6087] futex(0x7fb41c7b66a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  6089] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  6087] <... futex resumed>)        = 0
executing program
[pid  6086] write(1, "executing program\n", 18 <unfinished ...>
[pid  6087] futex(0x7fb41c7b66ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid  6086] <... write resumed>)        = 18
[pid  6089] memfd_create("syzkaller", 0 <unfinished ...>
[pid  6086] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  6089] <... memfd_create resumed>) = 3
[pid  6086] rt_sigaction(SIGRT_1, {sa_handler=0x7fb41c745060, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb41c736210}, NULL, 8) = 0
[pid  6086] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  6086] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid  6089] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  6086] <... mmap resumed>)         = 0x7fb41c6b3000
[pid  6089] <... mmap resumed>)         = 0x7fb414200000
[pid  6086] mprotect(0x7fb41c6b4000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  6086] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  6086] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb41c6d3990, parent_tid=0x7fb41c6d3990, exit_signal=0, stack=0x7fb41c6b3000, stack_size=0x20300, tls=0x7fb41c6d36c0}./strace-static-x86_64: Process 6093 attached
 => {parent_tid=[6093]}, 88) = 6093
[pid  6093] rseq(0x7fb41c6d3fe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid  6086] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  6051] <... mount resumed>)        = 0
[pid  6093] <... rseq resumed>)         = 0
[pid  6093] set_robust_list(0x7fb41c6d39a0, 24) = 0
[pid  6093] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  6086] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  6093] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  6086] futex(0x7fb41c7b66a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  6093] memfd_create("syzkaller", 0 <unfinished ...>
[pid  6086] <... futex resumed>)        = 0
[pid  6086] futex(0x7fb41c7b66ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid  6051] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  6093] <... memfd_create resumed>) = 3
[pid  6051] <... futex resumed>)        = 0
[pid  6093] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  6051] futex(0x7fb41c7b66a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  6093] <... mmap resumed>)         = 0x7fb414200000
[pid  6050] exit_group(0 <unfinished ...>
[pid  6051] <... futex resumed>)        = ?
[pid  6050] <... exit_group resumed>)   = ?
[pid  6051] +++ exited with 0 +++
[pid  6050] +++ exited with 0 +++
[  103.695878][ T6092] bcachefs (loop3): backpointer doesn't match extent it points to:
[pid  5837] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6050, si_uid=0, si_status=0, si_utime=10 /* 0.10 s */, si_stime=37 /* 0.37 s */} ---
[  103.695899][ T6092]   u64s 9 type backpointer 0:8921088:0 len 0 ver 0: bucket=0:34:8 btree=extents level=0 data_type=user suboffset=0 len=8 gen=0 pos=1073741825:24:U32_MAX
[pid  5837] umount2("./3", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5837] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid  5837] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5837] getdents64(3, 0x555575692730 /* 4 entries */, 32768) = 112
[pid  5837] umount2("./3/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[  103.695917][ T6092]   u64s 8 type extent 1073741825:24:U32_MAX len 24 ver 2: durability: 1 crc: c_size 8 size 24 offset 0 nonce 0 csum chacha20_poly1305_80 5c1d:75853c64f7009f9d  compress lz4 ptr: 0:34:8 gen 0
[  103.695936][ T6092]   u64s 9 type backpointer 0:8921088:0 len 0 ver 0: bucket=0:34:8 btree=extents level=0 data_type=user suboffset=0 len=8 gen=0 pos=1073741825:24:U32_MAX, fixing
[  103.816803][ T5837] bcachefs (loop3): shutting down
[  103.816823][ T5837] bcachefs (loop3): going read-only
[  103.816869][ T5837] bcachefs (loop3): finished waiting for writes to stop
[  103.982321][ T5837] bcachefs (loop3): flushing journal and stopping allocators, journal seq 13
[  104.006296][ T5837] bcachefs (loop3): flushing journal and stopping allocators complete, journal seq 13
[pid  6089] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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  6088] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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  5836] <... umount2 resumed>)      = 0
[pid  5836] umount2("./3/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[  104.040003][ T5837] bcachefs (loop3): clean shutdown complete, journal seq 14
[  104.079732][ T5837] bcachefs (loop3): marking filesystem clean
[pid  6093] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...>
[pid  5836] newfstatat(AT_FDCWD, "./3/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5836] umount2("./3/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5836] openat(AT_FDCWD, "./3/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid  5836] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5836] getdents64(4, 0x55557569a770 /* 2 entries */, 32768) = 48
[pid  5836] getdents64(4, 0x55557569a770 /* 0 entries */, 32768) = 0
[pid  5836] close(4)                    = 0
[pid  5836] rmdir("./3/file0")          = 0
[pid  5836] umount2("./3/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5836] newfstatat(AT_FDCWD, "./3/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5836] unlink("./3/binderfs")      = 0
[pid  5836] getdents64(3, 0x555575692730 /* 0 entries */, 32768) = 0
[  104.148753][ T5837] bcachefs (loop3): shutdown complete
[pid  5836] close(3)                    = 0
[pid  5836] rmdir("./3")                = 0
[pid  5836] mkdir("./4", 0777)          = 0
[pid  5836] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  5836] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  5836] close(3 <unfinished ...>
[pid  6089] <... write resumed>)        = 16777216
[pid  5836] <... close resumed>)        = 0
[pid  5836] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6095 attached
 <unfinished ...>
[pid  6089] munmap(0x7fb414200000, 138412032 <unfinished ...>
[pid  6095] set_robust_list(0x5555756916a0, 24 <unfinished ...>
[pid  5836] <... clone resumed>, child_tidptr=0x555575691690) = 6095
[pid  6095] <... set_robust_list resumed>) = 0
[pid  6095] chdir("./4" <unfinished ...>
[pid  6089] <... munmap resumed>)       = 0
[pid  6095] <... chdir resumed>)        = 0
[pid  6089] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  6095] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  6089] <... openat resumed>)       = 4
[pid  6095] setpgid(0, 0 <unfinished ...>
[pid  6089] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid  6095] <... setpgid resumed>)      = 0
[pid  6089] <... ioctl resumed>)        = 0
[pid  6095] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  6089] close(3 <unfinished ...>
[pid  6095] write(3, "1000", 4 <unfinished ...>
[pid  6089] <... close resumed>)        = 0
[pid  6095] <... write resumed>)        = 4
[pid  6089] close(4 <unfinished ...>
[pid  6095] close(3 <unfinished ...>
[pid  6089] <... close resumed>)        = 0
[pid  6095] <... close resumed>)        = 0
[pid  6089] mkdir("./file0", 0777 <unfinished ...>
[pid  6095] symlink("/dev/binderfs", "./binderfs" <unfinished ...>
[pid  6089] <... mkdir resumed>)        = 0
executing program
[pid  6095] <... symlink resumed>)      = 0
[pid  6095] write(1, "executing program\n", 18 <unfinished ...>
[pid  6089] mount("/dev/loop4", "./file0", "bcachefs", MS_RDONLY|MS_SYNCHRONOUS|MS_MANDLOCK|MS_POSIXACL|MS_STRICTATIME, "errors=fix_safe,version_upgrade=none,noexcl,shard_inode_numbers," <unfinished ...>
[pid  6095] <... write resumed>)        = 18
[pid  6095] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  6095] rt_sigaction(SIGRT_1, {sa_handler=0x7fb41c745060, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb41c736210}, NULL, 8) = 0
[pid  6095] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  6095] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb41c6b3000
[pid  6095] mprotect(0x7fb41c6b4000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  6095] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[  104.336820][ T6089] loop4: detected capacity change from 0 to 32768
[pid  6095] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb41c6d3990, parent_tid=0x7fb41c6d3990, exit_signal=0, stack=0x7fb41c6b3000, stack_size=0x20300, tls=0x7fb41c6d36c0}./strace-static-x86_64: Process 6097 attached
 <unfinished ...>
[pid  6097] rseq(0x7fb41c6d3fe0, 0x20, 0, 0x53053053) = 0
[pid  6095] <... clone3 resumed> => {parent_tid=[6097]}, 88) = 6097
[pid  6097] set_robust_list(0x7fb41c6d39a0, 24 <unfinished ...>
[pid  6095] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  6097] <... set_robust_list resumed>) = 0
[pid  6097] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  6095] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  6097] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  6097] futex(0x7fb41c7b66a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  6095] futex(0x7fb41c7b66a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  6097] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  6097] memfd_create("syzkaller", 0 <unfinished ...>
[pid  6095] <... futex resumed>)        = 0
[pid  6097] <... memfd_create resumed>) = 3
[pid  6095] futex(0x7fb41c7b66ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid  6097] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb414200000
[pid  6093] <... write resumed>)        = 16777216
[pid  6093] munmap(0x7fb414200000, 138412032) = 0
[pid  6088] <... write resumed>)        = 16777216
[pid  6093] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  6088] munmap(0x7fb414200000, 138412032 <unfinished ...>
[pid  6093] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid  6088] <... munmap resumed>)       = 0
[pid  6093] <... ioctl resumed>)        = 0
[pid  6093] close(3)                    = 0
[pid  6093] close(4)                    = 0
[pid  6093] mkdir("./file0", 0777)      = 0
[pid  6093] mount("/dev/loop0", "./file0", "bcachefs", MS_RDONLY|MS_SYNCHRONOUS|MS_MANDLOCK|MS_POSIXACL|MS_STRICTATIME, "errors=fix_safe,version_upgrade=none,noexcl,shard_inode_numbers," <unfinished ...>
[pid  6088] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4
[pid  6088] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  6088] close(3)                    = 0
[pid  6088] close(4)                    = 0
[pid  6088] mkdir("./file0", 0777)      = 0
[  104.476225][ T6093] loop0: detected capacity change from 0 to 32768
[  104.513544][ T6088] loop1: detected capacity change from 0 to 32768
[pid  6088] mount("/dev/loop1", "./file0", "bcachefs", MS_RDONLY|MS_SYNCHRONOUS|MS_MANDLOCK|MS_POSIXACL|MS_STRICTATIME, "errors=fix_safe,version_upgrade=none,noexcl,shard_inode_numbers," <unfinished ...>
[  104.710050][ T6093] bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=none,compression=lz4,nojournal_transaction_names,noexcl,read_only,version_upgrade=none
[  104.710078][ T6093]   allowing incompatible features above 0.0: (unknown version)
[  104.710091][ T6093]   features: lz4,new_siphash,inline_data,new_extent_overwrite,btree_ptr_v2,new_varint,journal_no_flush,alloc_v2,extents_across_btree_nodes
[  104.756437][ T6093] bcachefs (loop0): Using encoding defined by superblock: utf8-12.1.0
[  104.778240][ T6093] bcachefs (loop0): recovering from clean shutdown, journal seq 13
[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) = 16777216
[pid  6097] munmap(0x7fb414200000, 138412032) = 0
[pid  6097] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4
[pid  6097] ioctl(4, LOOP_SET_FD, 3)    = 0
[  104.819105][ T6093] bcachefs (loop0): accounting_read... done
[  104.826816][ T6093] bcachefs (loop0): alloc_read... done
[  104.839232][ T6097] loop2: detected capacity change from 0 to 32768
[  104.844830][ T6093] bcachefs (loop0): snapshots_read... done
[  104.858772][ T6093] bcachefs (loop0): journal_replay... done
[pid  6097] close(3)                    = 0
[pid  6097] close(4)                    = 0
[pid  6097] mkdir("./file0", 0777)      = 0
[pid  6097] mount("/dev/loop2", "./file0", "bcachefs", MS_RDONLY|MS_SYNCHRONOUS|MS_MANDLOCK|MS_POSIXACL|MS_STRICTATIME, "errors=fix_safe,version_upgrade=none,noexcl,shard_inode_numbers," <unfinished ...>
[pid  6093] <... mount resumed>)        = 0
[pid  6093] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid  6093] chdir("./file0")            = 0
[pid  6093] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  6093] ioctl(4, LOOP_CLR_FD)       = 0
[  104.870610][ T6093] bcachefs (loop0): resume_logged_ops... done
[  104.879729][ T6093] bcachefs (loop0): delete_dead_inodes... done
[  104.891365][ T6093] bcachefs (loop0): done starting filesystem
[pid  6093] close(4)                    = 0
[pid  6093] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  6093] futex(0x7fb41c7b66a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  6086] <... futex resumed>)        = 0
[pid  6086] futex(0x7fb41c7b66a8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  6086] futex(0x7fb41c7b66ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  6093] <... futex resumed>)        = 0
[  104.933681][ T6088] bcachefs (loop1): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=none,compression=lz4,nojournal_transaction_names,noexcl,read_only,version_upgrade=none
[pid  6093] mount(NULL, ".", NULL, MS_NODEV|MS_REMOUNT|MS_MOVE|MS_POSIXACL|MS_LAZYTIME, NULL <unfinished ...>
[pid  6086] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[  104.933709][ T6088]   allowing incompatible features above 0.0: (unknown version)
[  104.933722][ T6088]   features: lz4,new_siphash,inline_data,new_extent_overwrite,btree_ptr_v2,new_varint,journal_no_flush,alloc_v2,extents_across_btree_nodes
[  104.955726][ T6093] bcachefs (loop0): going read-write
[  104.996653][ T6089] bcachefs (loop4): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=none,compression=lz4,nojournal_transaction_names,noexcl,read_only,version_upgrade=none
[  105.014854][ T6088] bcachefs (loop1): Using encoding defined by superblock: utf8-12.1.0
[  105.049085][ T6089]   allowing incompatible features above 0.0: (unknown version)
[  105.064970][ T6088] bcachefs (loop1): recovering from clean shutdown, journal seq 13
[  105.115123][ T6089]   features: lz4,new_siphash,inline_data,new_extent_overwrite,btree_ptr_v2,new_varint,journal_no_flush,alloc_v2,extents_across_btree_nodes
[pid  6093] <... mount resumed>)        = 0
[pid  6093] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  6093] futex(0x7fb41c7b66a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  6086] exit_group(0 <unfinished ...>
[pid  6093] <... futex resumed>)        = ?
[pid  6086] <... exit_group resumed>)   = ?
[pid  6093] +++ exited with 0 +++
[pid  6086] +++ exited with 0 +++
[  105.156036][ T6089] bcachefs (loop4): Using encoding defined by superblock: utf8-12.1.0
[  105.164445][ T6089] bcachefs (loop4): recovering from clean shutdown, journal seq 13
[  105.168074][ T6088] bcachefs (loop1): accounting_read...
[  105.175160][ T6097] bcachefs (loop2): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=none,compression=lz4,nojournal_transaction_names,noexcl,read_only,version_upgrade=none
[pid  5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6086, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=42 /* 0.42 s */} ---
[pid  5833] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  5833] umount2("./4", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid  5833] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5833] getdents64(3, 0x555575692730 /* 4 entries */, 32768) = 112
[pid  5833] umount2("./4/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  6088] <... mount resumed>)        = 0
[pid  6088] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid  6088] chdir("./file0")            = 0
[pid  6088] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4
[pid  6088] ioctl(4, LOOP_CLR_FD)       = 0
[pid  6088] close(4)                    = 0
[pid  6088] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  6080] <... futex resumed>)        = 0
[pid  6080] futex(0x7fb41c7b66a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  6080] futex(0x7fb41c7b66ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[  105.175182][ T6097]   allowing incompatible features above 0.0: (unknown version)
[  105.175192][ T6097]   features: lz4,new_siphash,inline_data,new_extent_overwrite,btree_ptr_v2,new_varint,journal_no_flush,alloc_v2,extents_across_btree_nodes
[  105.201212][ T6108] bcachefs (loop0): backpointer doesn't match extent it points to:
[  105.201230][ T6108]   u64s 9 type backpointer 0:8921088:0 len 0 ver 0: bucket=0:34:8 btree=extents level=0 data_type=user suboffset=0 len=8 gen=0 pos=1073741825:24:U32_MAX
[  105.201245][ T6108]   u64s 8 type extent 1073741825:24:U32_MAX len 24 ver 2: durability: 1 crc: c_size 8 size 24 offset 0 nonce 0 csum chacha20_poly1305_80 5c1d:75853c64f7009f9d  compress lz4 ptr: 0:34:8 gen 0
[  105.201261][ T6108]   u64s 9 type backpointer 0:8921088:0 len 0 ver 0: bucket=0:34:8 btree=extents level=0 data_type=user suboffset=0 len=8 gen=0 pos=1073741825:24:U32_MAX, fixing
[pid  6088] mount(NULL, ".", NULL, MS_NODEV|MS_REMOUNT|MS_MOVE|MS_POSIXACL|MS_LAZYTIME, NULL <unfinished ...>
[pid  6080] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[  105.202654][ T6088]  done
[  105.202668][ T6088] bcachefs (loop1): alloc_read... done
[  105.205061][ T6088] bcachefs (loop1): snapshots_read... done
[  105.220579][ T6108] bcachefs (loop0): Detected missing backpointers in bucket 34, now have 1/128 with missing
[  105.220599][ T6108]   scheduling recovery pass check_extents_to_backpointers (17)
[  105.235916][ T6088] bcachefs (loop1): journal_replay... done
[  105.237794][ T6088] bcachefs (loop1): resume_logged_ops... done
[  105.238670][ T6088] bcachefs (loop1): delete_dead_inodes... done
[  105.257005][ T5833] bcachefs (loop0): shutting down
[  105.257024][ T5833] bcachefs (loop0): going read-only
[  105.257053][ T5833] bcachefs (loop0): finished waiting for writes to stop
[  105.258555][ T5833] bcachefs (loop0): flushing journal and stopping allocators, journal seq 14
[  105.261486][ T5833] bcachefs (loop0): flushing journal and stopping allocators complete, journal seq 15
[  105.262413][ T5833] bcachefs (loop0): clean shutdown complete, journal seq 16
[  105.263106][ T5833] bcachefs (loop0): marking filesystem clean
[pid  5837] <... umount2 resumed>)      = 0
[pid  5837] umount2("./3/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5837] newfstatat(AT_FDCWD, "./3/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5837] umount2("./3/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[  105.268410][ T6088] bcachefs (loop1): done starting filesystem
[  105.320628][ T6088] bcachefs (loop1): going read-write
[  105.333700][ T6089] bcachefs (loop4): accounting_read...
[  105.337147][ T6097] bcachefs (loop2): Using encoding defined by superblock: utf8-12.1.0
[  105.496683][ T6097] bcachefs (loop2): recovering from clean shutdown, journal seq 13
[  105.503102][ T5833] bcachefs (loop0): shutdown complete
[  105.517745][ T6089]  done
[pid  5837] openat(AT_FDCWD, "./3/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid  5837] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5837] getdents64(4, 0x55557569a770 /* 2 entries */, 32768) = 48
[pid  5837] getdents64(4, 0x55557569a770 /* 0 entries */, 32768) = 0
[pid  5837] close(4)                    = 0
[pid  5837] rmdir("./3/file0")          = 0
[pid  5837] umount2("./3/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5837] newfstatat(AT_FDCWD, "./3/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5837] unlink("./3/binderfs")      = 0
[pid  5837] getdents64(3, 0x555575692730 /* 0 entries */, 32768) = 0
[pid  5837] close(3)                    = 0
[pid  5837] rmdir("./3")                = 0
[pid  5837] mkdir("./4", 0777)          = 0
[pid  5837] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  5837] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  5837] close(3)                    = 0
[pid  5837] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555575691690) = 6115
./strace-static-x86_64: Process 6115 attached
[pid  6115] set_robust_list(0x5555756916a0, 24) = 0
[pid  6115] chdir("./4")                = 0
[pid  6115] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  6115] setpgid(0, 0)               = 0
[pid  6115] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  6115] write(3, "1000", 4)         = 4
executing program
[pid  6115] close(3)                    = 0
[pid  6115] symlink("/dev/binderfs", "./binderfs") = 0
[pid  6115] write(1, "executing program\n", 18) = 18
[pid  6115] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  6115] rt_sigaction(SIGRT_1, {sa_handler=0x7fb41c745060, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb41c736210}, NULL, 8) = 0
[  105.520558][ T6089] bcachefs (loop4): alloc_read... done
[  105.530804][ T6089] bcachefs (loop4): snapshots_read... done
[pid  6115] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  6115] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb41c6b3000
[pid  6115] mprotect(0x7fb41c6b4000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  6088] <... mount resumed>)        = 0
[pid  6115] rt_sigprocmask(SIG_BLOCK, ~[],  <unfinished ...>
[pid  6088] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  6115] <... rt_sigprocmask resumed>[], 8) = 0
[pid  6115] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb41c6d3990, parent_tid=0x7fb41c6d3990, exit_signal=0, stack=0x7fb41c6b3000, stack_size=0x20300, tls=0x7fb41c6d36c0} <unfinished ...>
[pid  6088] <... futex resumed>)        = 0
[pid  6080] exit_group(0)               = ?
./strace-static-x86_64: Process 6120 attached
[pid  6120] rseq(0x7fb41c6d3fe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid  6115] <... clone3 resumed> => {parent_tid=[6120]}, 88) = 6120
[pid  6120] <... rseq resumed>)         = 0
[pid  6120] set_robust_list(0x7fb41c6d39a0, 24 <unfinished ...>
[pid  6115] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  6088] +++ exited with 0 +++
[pid  6080] +++ exited with 0 +++
[pid  6120] <... set_robust_list resumed>) = 0
[pid  6115] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  6120] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  6115] futex(0x7fb41c7b66a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  6120] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5835] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6080, si_uid=0, si_status=0, si_utime=7 /* 0.07 s */, si_stime=37 /* 0.37 s */} ---
[pid  6120] memfd_create("syzkaller", 0 <unfinished ...>
[pid  6115] <... futex resumed>)        = 0
[pid  5835] umount2("./4", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  6120] <... memfd_create resumed>) = 3
[pid  5835] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  6115] futex(0x7fb41c7b66ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid  5835] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid  6120] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb414200000
[pid  5835] <... openat resumed>)       = 3
[pid  5835] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5835] getdents64(3, 0x555575692730 /* 4 entries */, 32768) = 112
[  105.612354][ T6118] bcachefs (loop1): backpointer doesn't match extent it points to:
[pid  5835] umount2("./4/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  6089] <... mount resumed>)        = 0
[pid  6097] <... mount resumed>)        = 0
[pid  6089] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid  6089] chdir("./file0")            = 0
[pid  6089] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4
[pid  6097] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid  6089] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid  6097] <... openat resumed>)       = 3
[pid  6089] <... ioctl resumed>)        = 0
[pid  6097] chdir("./file0" <unfinished ...>
[pid  6089] close(4 <unfinished ...>
[pid  6097] <... chdir resumed>)        = 0
[pid  6089] <... close resumed>)        = 0
[pid  6089] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  6087] <... futex resumed>)        = 0
[pid  6089] futex(0x7fb41c7b66a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  6087] futex(0x7fb41c7b66a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  6097] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  6089] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  6087] <... futex resumed>)        = 0
[pid  6097] <... openat resumed>)       = 4
[pid  6089] mount(NULL, ".", NULL, MS_NODEV|MS_REMOUNT|MS_MOVE|MS_POSIXACL|MS_LAZYTIME, NULL <unfinished ...>
[pid  6087] futex(0x7fb41c7b66ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  6097] ioctl(4, LOOP_CLR_FD)       = 0
[pid  6097] close(4)                    = 0
[pid  6097] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[  105.612375][ T6118]   u64s 9 type backpointer 0:8921088:0 len 0 ver 0: bucket=0:34:8 btree=extents level=0 data_type=user suboffset=0 len=8 gen=0 pos=1073741825:24:U32_MAX
[pid  6097] futex(0x7fb41c7b66a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  6095] <... futex resumed>)        = 0
[pid  6095] futex(0x7fb41c7b66a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  6097] <... futex resumed>)        = 0
[pid  6095] <... futex resumed>)        = 1
[  105.612391][ T6118]   u64s 8 type extent 1073741825:24:U32_MAX len 24 ver 2: durability: 1 crc: c_size 8 size 24 offset 0 nonce 0 csum chacha20_poly1305_80 5c1d:75853c64f7009f9d  compress lz4 ptr: 0:34:8 gen 0
[  105.612407][ T6118]   u64s 9 type backpointer 0:8921088:0 len 0 ver 0: bucket=0:34:8 btree=extents level=0 data_type=user suboffset=0 len=8 gen=0 pos=1073741825:24:U32_MAX, fixing
[  105.631818][ T6097] bcachefs (loop2): accounting_read...
[  105.634393][ T6089] bcachefs (loop4): journal_replay...
[  105.635751][ T6097]  done
[  105.635766][ T6097] bcachefs (loop2): alloc_read... done
[  105.636747][ T6097] bcachefs (loop2): snapshots_read...
[  105.637611][ T6089]  done
[  105.642123][ T6089] bcachefs (loop4): resume_logged_ops... done
[  105.642981][ T6089] bcachefs (loop4): delete_dead_inodes...
[  105.643606][ T6097]  done
[  105.652368][ T6089]  done
[  105.654038][ T6089] bcachefs (loop4): done starting filesystem
[  105.661230][ T6097] bcachefs (loop2): journal_replay... done
[  105.667864][ T6097] bcachefs (loop2): resume_logged_ops... done
[pid  6097] mount(NULL, ".", NULL, MS_NODEV|MS_REMOUNT|MS_MOVE|MS_POSIXACL|MS_LAZYTIME, NULL <unfinished ...>
[pid  6095] futex(0x7fb41c7b66ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  6087] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[  105.668644][ T6097] bcachefs (loop2): delete_dead_inodes...
[  105.669695][ T5835] bcachefs (loop1): shutting down
[  105.669711][ T5835] bcachefs (loop1): going read-only
[  105.669737][ T5835] bcachefs (loop1): finished waiting for writes to stop
[  105.670274][ T6097]  done
[  105.671645][ T6097] bcachefs (loop2): done starting filesystem
[  105.706667][ T6089] bcachefs (loop4): going read-write
[  105.738510][ T6097] bcachefs (loop2): going read-write
[  105.744567][ T5835] bcachefs (loop1): flushing journal and stopping allocators, journal seq 13
[  105.925933][ T5835] bcachefs (loop1): flushing journal and stopping allocators complete, journal seq 13
[pid  6120] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...>
[pid  6095] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  6089] <... mount resumed>)        = 0
[pid  6089] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  6089] futex(0x7fb41c7b66a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  6087] exit_group(0 <unfinished ...>
[pid  6089] <... futex resumed>)        = ?
[pid  6087] <... exit_group resumed>)   = ?
[pid  6089] +++ exited with 0 +++
[pid  6087] +++ exited with 0 +++
[pid  5838] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6087, si_uid=0, si_status=0, si_utime=8 /* 0.08 s */, si_stime=41 /* 0.41 s */} ---
[pid  5838] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  5838] umount2("./4", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5838] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid  5838] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5838] getdents64(3, 0x555575692730 /* 4 entries */, 32768) = 112
[  105.967844][ T6133] bcachefs (loop4): backpointer doesn't match extent it points to:
[pid  5838] umount2("./4/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  6097] <... mount resumed>)        = 0
[pid  6097] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  6095] exit_group(0)               = ?
[  105.967867][ T6133]   u64s 9 type backpointer 0:8921088:0 len 0 ver 0: bucket=0:34:8 btree=extents level=0 data_type=user suboffset=0 len=8 gen=0 pos=1073741825:24:U32_MAX
[pid  6097] +++ exited with 0 +++
[pid  6095] +++ exited with 0 +++
[pid  5836] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6095, si_uid=0, si_status=0, si_utime=9 /* 0.09 s */, si_stime=56 /* 0.56 s */} ---
[pid  5836] umount2("./4", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5836] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid  5836] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5836] getdents64(3, 0x555575692730 /* 4 entries */, 32768) = 112
[  105.967885][ T6133]   u64s 8 type extent 1073741825:24:U32_MAX len 24 ver 2: durability: 1 crc: c_size 8 size 24 offset 0 nonce 0 csum chacha20_poly1305_80 5c1d:75853c64f7009f9d  compress lz4 ptr: 0:34:8 gen 0
[  105.967906][ T6133]   u64s 9 type backpointer 0:8921088:0 len 0 ver 0: bucket=0:34:8 btree=extents level=0 data_type=user suboffset=0 len=8 gen=0 pos=1073741825:24:U32_MAX, fixing
[  105.997974][ T5835] bcachefs (loop1): clean shutdown complete, journal seq 14
[  105.998655][ T5835] bcachefs (loop1): marking filesystem clean
[  106.015070][ T5838] bcachefs (loop4): shutting down
[  106.015087][ T5838] bcachefs (loop4): going read-only
[  106.015111][ T5838] bcachefs (loop4): finished waiting for writes to stop
[  106.084033][ T6137] bcachefs (loop2): backpointer doesn't match extent it points to:
[  106.084054][ T6137]   u64s 9 type backpointer 0:8921088:0 len 0 ver 0: bucket=0:34:8 btree=extents level=0 data_type=user suboffset=0 len=8 gen=0 pos=1073741825:24:U32_MAX
[pid  5836] umount2("./4/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5833] <... umount2 resumed>)      = 0
[  106.084072][ T6137]   u64s 8 type extent 1073741825:24:U32_MAX len 24 ver 2: durability: 1 crc: c_size 8 size 24 offset 0 nonce 0 csum chacha20_poly1305_80 5c1d:75853c64f7009f9d  compress lz4 ptr: 0:34:8 gen 0
[pid  5833] umount2("./4/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./4/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] umount2("./4/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] openat(AT_FDCWD, "./4/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, 0x55557569a770 /* 2 entries */, 32768) = 48
[pid  5833] getdents64(4, 0x55557569a770 /* 0 entries */, 32768) = 0
[pid  5833] close(4)                    = 0
[pid  5833] rmdir("./4/file0")          = 0
[pid  5833] umount2("./4/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[  106.084091][ T6137]   u64s 9 type backpointer 0:8921088:0 len 0 ver 0: bucket=0:34:8 btree=extents level=0 data_type=user suboffset=0 len=8 gen=0 pos=1073741825:24:U32_MAX, fixing
[pid  5833] newfstatat(AT_FDCWD, "./4/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] unlink("./4/binderfs")      = 0
[pid  5833] getdents64(3, 0x555575692730 /* 0 entries */, 32768) = 0
[pid  5833] close(3)                    = 0
[  106.087322][ T5835] bcachefs (loop1): shutdown complete
[  106.108472][ T6137] bcachefs (loop2): Detected missing backpointers in bucket 34, now have 1/128 with missing
[  106.108494][ T6137]   scheduling recovery pass check_extents_to_backpointers (17)
[pid  5833] rmdir("./4")                = 0
[pid  5833] mkdir("./5", 0777)          = 0
[pid  5833] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  5833] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  5833] close(3)                    = 0
[  106.153263][ T5836] bcachefs (loop2): shutting down
[pid  6120] <... write resumed>)        = 16777216
[pid  5833] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6139 attached
 <unfinished ...>
[pid  6139] set_robust_list(0x5555756916a0, 24 <unfinished ...>
[pid  6120] munmap(0x7fb414200000, 138412032 <unfinished ...>
[pid  5833] <... clone resumed>, child_tidptr=0x555575691690) = 6139
[pid  6139] <... set_robust_list resumed>) = 0
[  106.153283][ T5836] bcachefs (loop2): going read-only
[pid  6139] chdir("./5")                = 0
[pid  6139] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  6139] setpgid(0, 0)               = 0
[pid  6120] <... munmap resumed>)       = 0
[pid  6139] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  6120] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  6139] <... openat resumed>)       = 3
[pid  6120] <... openat resumed>)       = 4
[pid  6139] write(3, "1000", 4)         = 4
[pid  6139] close(3 <unfinished ...>
[pid  6120] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid  6139] <... close resumed>)        = 0
[pid  6139] symlink("/dev/binderfs", "./binderfs") = 0
[pid  6139] write(1, "executing program\n", 18executing program
) = 18
[pid  6120] <... ioctl resumed>)        = 0
[pid  6139] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  6120] close(3 <unfinished ...>
[pid  6139] <... futex resumed>)        = 0
[pid  6120] <... close resumed>)        = 0
[pid  6120] close(4)                    = 0
[pid  6139] rt_sigaction(SIGRT_1, {sa_handler=0x7fb41c745060, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb41c736210},  <unfinished ...>
[pid  6120] mkdir("./file0", 0777 <unfinished ...>
[pid  6139] <... rt_sigaction resumed>NULL, 8) = 0
[pid  6139] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1],  <unfinished ...>
[pid  6120] <... mkdir resumed>)        = 0
[pid  6139] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  6120] mount("/dev/loop3", "./file0", "bcachefs", MS_RDONLY|MS_SYNCHRONOUS|MS_MANDLOCK|MS_POSIXACL|MS_STRICTATIME, "errors=fix_safe,version_upgrade=none,noexcl,shard_inode_numbers," <unfinished ...>
[pid  6139] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb41c6b3000
[  106.153311][ T5836] bcachefs (loop2): finished waiting for writes to stop
[pid  6139] mprotect(0x7fb41c6b4000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  6139] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  6139] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb41c6d3990, parent_tid=0x7fb41c6d3990, exit_signal=0, stack=0x7fb41c6b3000, stack_size=0x20300, tls=0x7fb41c6d36c0}./strace-static-x86_64: Process 6140 attached
 => {parent_tid=[6140]}, 88) = 6140
[pid  6140] rseq(0x7fb41c6d3fe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid  6139] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  6140] <... rseq resumed>)         = 0
[pid  6139] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  6140] set_robust_list(0x7fb41c6d39a0, 24 <unfinished ...>
[pid  6139] futex(0x7fb41c7b66a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  6140] <... set_robust_list resumed>) = 0
[pid  6139] <... futex resumed>)        = 0
[pid  6140] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  6139] futex(0x7fb41c7b66ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid  6140] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  6140] memfd_create("syzkaller", 0) = 3
[pid  6140] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb414200000
[  106.162237][ T5836] bcachefs (loop2): flushing journal and stopping allocators, journal seq 14
[  106.165471][ T5836] bcachefs (loop2): flushing journal and stopping allocators complete, journal seq 15
[  106.177881][ T5836] bcachefs (loop2): clean shutdown complete, journal seq 16
[  106.178573][ T5836] bcachefs (loop2): marking filesystem clean
[  106.245079][ T5836] bcachefs (loop2): shutdown complete
[  106.494960][ T6120] loop3: detected capacity change from 0 to 32768
[pid  6140] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...>
[pid  5835] <... umount2 resumed>)      = 0
[  106.601247][ T6120] bcachefs (loop3): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=none,compression=lz4,nojournal_transaction_names,noexcl,read_only,version_upgrade=none
[pid  5835] umount2("./4/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[  106.601273][ T6120]   allowing incompatible features above 0.0: (unknown version)
[  106.601284][ T6120]   features: lz4,new_siphash,inline_data,new_extent_overwrite,btree_ptr_v2,new_varint,journal_no_flush,alloc_v2,extents_across_btree_nodes
[  106.601310][ T6120] bcachefs (loop3): Using encoding defined by superblock: utf8-12.1.0
[  106.601424][ T6120] bcachefs (loop3): recovering from clean shutdown, journal seq 13
[  106.768564][ T6120] bcachefs (loop3): accounting_read... done
[pid  5835] newfstatat(AT_FDCWD, "./4/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5835] umount2("./4/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5835] openat(AT_FDCWD, "./4/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, 0x55557569a770 /* 2 entries */, 32768) = 48
[pid  5835] getdents64(4, 0x55557569a770 /* 0 entries */, 32768) = 0
[pid  5835] close(4)                    = 0
[  106.841571][ T6120] bcachefs (loop3): alloc_read... done
[  106.842521][ T6120] bcachefs (loop3): snapshots_read... done
[  106.849229][ T6120] bcachefs (loop3): journal_replay...
[  106.885576][ T5838] bcachefs (loop4): flushing journal and stopping allocators, journal seq 13
[pid  5835] rmdir("./4/file0")          = 0
[pid  5835] umount2("./4/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5835] newfstatat(AT_FDCWD, "./4/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5836] <... umount2 resumed>)      = 0
[pid  5835] unlink("./4/binderfs")      = 0
[pid  5835] getdents64(3, 0x555575692730 /* 0 entries */, 32768) = 0
[pid  5835] close(3)                    = 0
[pid  5835] rmdir("./4" <unfinished ...>
[pid  5836] umount2("./4/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5835] <... rmdir resumed>)        = 0
[pid  5836] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5836] newfstatat(AT_FDCWD, "./4/file0",  <unfinished ...>
[pid  5835] mkdir("./5", 0777)          = 0
[pid  5836] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5835] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  5836] umount2("./4/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[  106.933181][ T5838] bcachefs (loop4): flushing journal and stopping allocators complete, journal seq 13
[  106.935846][ T6120]  done
[  106.957937][ T5838] bcachefs (loop4): clean shutdown complete, journal seq 14
[  106.960262][ T6120] bcachefs (loop3): resume_logged_ops...
[  106.970275][ T5838] bcachefs (loop4): marking filesystem clean
[pid  5835] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5836] openat(AT_FDCWD, "./4/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid  5835] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  5836] <... openat resumed>)       = 4
[pid  5835] close(3 <unfinished ...>
[pid  5836] newfstatat(4, "",  <unfinished ...>
[pid  5835] <... close resumed>)        = 0
[pid  5836] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5835] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5836] getdents64(4, 0x55557569a770 /* 2 entries */, 32768) = 48
./strace-static-x86_64: Process 6142 attached
[pid  5836] getdents64(4,  <unfinished ...>
[pid  5835] <... clone resumed>, child_tidptr=0x555575691690) = 6142
[pid  5836] <... getdents64 resumed>0x55557569a770 /* 0 entries */, 32768) = 0
[pid  5836] close(4 <unfinished ...>
[pid  6142] set_robust_list(0x5555756916a0, 24 <unfinished ...>
[pid  6140] <... write resumed>)        = 16777216
[pid  5836] <... close resumed>)        = 0
[pid  6142] <... set_robust_list resumed>) = 0
[pid  6142] chdir("./5")                = 0
[pid  6142] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  6142] setpgid(0, 0)               = 0
[pid  6142] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  6142] write(3, "1000", 4 <unfinished ...>
[pid  5836] rmdir("./4/file0" <unfinished ...>
[pid  6142] <... write resumed>)        = 4
[pid  5836] <... rmdir resumed>)        = 0
[pid  6142] close(3 <unfinished ...>
[pid  6140] munmap(0x7fb414200000, 138412032 <unfinished ...>
[pid  5836] umount2("./4/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  6142] <... close resumed>)        = 0
[pid  6142] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5836] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5836] newfstatat(AT_FDCWD, "./4/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
executing program
[pid  5836] unlink("./4/binderfs" <unfinished ...>
[pid  6142] write(1, "executing program\n", 18) = 18
[pid  6142] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5836] <... unlink resumed>)       = 0
[pid  6142] <... futex resumed>)        = 0
[pid  6142] rt_sigaction(SIGRT_1, {sa_handler=0x7fb41c745060, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb41c736210}, NULL, 8) = 0
[pid  6140] <... munmap resumed>)       = 0
[pid  5836] getdents64(3,  <unfinished ...>
[pid  6142] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  6142] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb41c6b3000
[pid  6142] mprotect(0x7fb41c6b4000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  6142] rt_sigprocmask(SIG_BLOCK, ~[],  <unfinished ...>
[pid  5836] <... getdents64 resumed>0x555575692730 /* 0 entries */, 32768) = 0
[pid  6142] <... rt_sigprocmask resumed>[], 8) = 0
[pid  6142] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb41c6d3990, parent_tid=0x7fb41c6d3990, exit_signal=0, stack=0x7fb41c6b3000, stack_size=0x20300, tls=0x7fb41c6d36c0} => {parent_tid=[6143]}, 88) = 6143
./strace-static-x86_64: Process 6143 attached
[pid  6142] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  6140] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[  106.980549][ T6120]  done
[  106.985396][ T6120] bcachefs (loop3): delete_dead_inodes... done
[  107.014108][ T6120] bcachefs (loop3): done starting filesystem
[pid  5836] close(3 <unfinished ...>
[pid  6140] <... openat resumed>)       = 4
[pid  5836] <... close resumed>)        = 0
[pid  5836] rmdir("./4" <unfinished ...>
[pid  6140] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid  6142] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  6142] futex(0x7fb41c7b66a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  6142] futex(0x7fb41c7b66ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid  6143] rseq(0x7fb41c6d3fe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid  5836] <... rmdir resumed>)        = 0
[pid  6143] <... rseq resumed>)         = 0
[pid  6143] set_robust_list(0x7fb41c6d39a0, 24) = 0
[pid  6143] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5836] mkdir("./5", 0777 <unfinished ...>
[pid  6143] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  6143] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5836] <... mkdir resumed>)        = 0
[pid  6143] <... memfd_create resumed>) = 3
[pid  6143] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb414200000
[pid  6120] <... mount resumed>)        = 0
[pid  5836] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  6120] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid  5836] <... openat resumed>)       = 3
[pid  5836] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  6120] <... openat resumed>)       = 3
[pid  5836] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  5836] close(3)                    = 0
[pid  5836] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555575691690) = 6144
./strace-static-x86_64: Process 6144 attached
[pid  6140] <... ioctl resumed>)        = 0
[pid  6120] chdir("./file0")            = 0
[pid  6140] close(3 <unfinished ...>
[pid  6120] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  6140] <... close resumed>)        = 0
[pid  6120] <... openat resumed>)       = 4
[pid  6144] set_robust_list(0x5555756916a0, 24 <unfinished ...>
[pid  6140] close(4 <unfinished ...>
[pid  6120] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid  6144] <... set_robust_list resumed>) = 0
[pid  6144] chdir("./5" <unfinished ...>
[pid  6120] <... ioctl resumed>)        = 0
[pid  6144] <... chdir resumed>)        = 0
[pid  6144] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  6120] close(4 <unfinished ...>
[pid  6144] <... prctl resumed>)        = 0
[pid  6144] setpgid(0, 0)               = 0
executing program
[pid  6144] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  6120] <... close resumed>)        = 0
[pid  6144] <... openat resumed>)       = 3
[pid  6120] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  6140] <... close resumed>)        = 0
[pid  6144] write(3, "1000", 4)         = 4
[pid  6144] close(3)                    = 0
[pid  6144] symlink("/dev/binderfs", "./binderfs") = 0
[pid  6144] write(1, "executing program\n", 18) = 18
[pid  6144] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  6144] rt_sigaction(SIGRT_1, {sa_handler=0x7fb41c745060, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb41c736210}, NULL, 8) = 0
[pid  6144] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  6144] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb41c6b3000
[pid  6144] mprotect(0x7fb41c6b4000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  6140] mkdir("./file0", 0777 <unfinished ...>
[pid  6120] <... futex resumed>)        = 1
[pid  6115] <... futex resumed>)        = 0
[pid  6140] <... mkdir resumed>)        = 0
[  107.038659][ T6140] loop0: detected capacity change from 0 to 32768
[  107.078454][ T5838] bcachefs (loop4): shutdown complete
[pid  6120] mount(NULL, ".", NULL, MS_NODEV|MS_REMOUNT|MS_MOVE|MS_POSIXACL|MS_LAZYTIME, NULL <unfinished ...>
[pid  6115] futex(0x7fb41c7b66a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  6144] rt_sigprocmask(SIG_BLOCK, ~[],  <unfinished ...>
[pid  6115] <... futex resumed>)        = 0
[pid  6144] <... rt_sigprocmask resumed>[], 8) = 0
[pid  6144] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb41c6d3990, parent_tid=0x7fb41c6d3990, exit_signal=0, stack=0x7fb41c6b3000, stack_size=0x20300, tls=0x7fb41c6d36c0}./strace-static-x86_64: Process 6145 attached
 <unfinished ...>
[pid  6115] futex(0x7fb41c7b66ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  6144] <... clone3 resumed> => {parent_tid=[6145]}, 88) = 6145
[pid  6145] rseq(0x7fb41c6d3fe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid  6144] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  6145] <... rseq resumed>)         = 0
[pid  6144] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  6144] futex(0x7fb41c7b66a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  6145] set_robust_list(0x7fb41c6d39a0, 24 <unfinished ...>
[pid  6144] <... futex resumed>)        = 0
[pid  6144] futex(0x7fb41c7b66ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid  6145] <... set_robust_list resumed>) = 0
[pid  6145] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid  6140] mount("/dev/loop0", "./file0", "bcachefs", MS_RDONLY|MS_SYNCHRONOUS|MS_MANDLOCK|MS_POSIXACL|MS_STRICTATIME, "errors=fix_safe,version_upgrade=none,noexcl,shard_inode_numbers," <unfinished ...>
[pid  6145] memfd_create("syzkaller", 0) = 3
[pid  6145] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb414200000
[  107.101816][ T6120] bcachefs (loop3): going read-write
[pid  6115] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  6120] <... mount resumed>)        = 0
[pid  6120] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  6120] futex(0x7fb41c7b66a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  6115] exit_group(0 <unfinished ...>
[pid  6120] <... futex resumed>)        = ?
[pid  6115] <... exit_group resumed>)   = ?
[pid  6120] +++ exited with 0 +++
[pid  6115] +++ exited with 0 +++
[pid  5837] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6115, si_uid=0, si_status=0, si_utime=9 /* 0.09 s */, si_stime=35 /* 0.35 s */} ---
[pid  5837] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  5837] umount2("./4", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5837] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid  5837] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5837] getdents64(3, 0x555575692730 /* 4 entries */, 32768) = 112
[  107.216255][ T6154] bcachefs (loop3): backpointer doesn't match extent it points to:
[pid  5837] umount2("./4/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[  107.216276][ T6154]   u64s 9 type backpointer 0:8921088:0 len 0 ver 0: bucket=0:34:8 btree=extents level=0 data_type=user suboffset=0 len=8 gen=0 pos=1073741825:24:U32_MAX
[  107.216293][ T6154]   u64s 8 type extent 1073741825:24:U32_MAX len 24 ver 2: durability: 1 crc: c_size 8 size 24 offset 0 nonce 0 csum chacha20_poly1305_80 5c1d:75853c64f7009f9d  compress lz4 ptr: 0:34:8 gen 0
[  107.216313][ T6154]   u64s 9 type backpointer 0:8921088:0 len 0 ver 0: bucket=0:34:8 btree=extents level=0 data_type=user suboffset=0 len=8 gen=0 pos=1073741825:24:U32_MAX, fixing
[  107.265601][ T5837] bcachefs (loop3): shutting down
[  107.265622][ T5837] bcachefs (loop3): going read-only
[  107.265650][ T5837] bcachefs (loop3): finished waiting for writes to stop
[  107.296591][ T6140] bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=none,compression=lz4,nojournal_transaction_names,noexcl,read_only,version_upgrade=none
[pid  6143] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...>
[  107.296618][ T6140]   allowing incompatible features above 0.0: (unknown version)
[  107.296632][ T6140]   features: lz4,new_siphash,inline_data,new_extent_overwrite,btree_ptr_v2,new_varint,journal_no_flush,alloc_v2,extents_across_btree_nodes
[pid  6145] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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  6143] <... write resumed>)        = 16777216
[  107.296662][ T6140] bcachefs (loop0): Using encoding defined by superblock: utf8-12.1.0
[  107.296785][ T6140] bcachefs (loop0): recovering from clean shutdown, journal seq 13
[pid  6143] munmap(0x7fb414200000, 138412032) = 0
[pid  6143] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4
[pid  6143] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  6143] close(3)                    = 0
[pid  6143] close(4)                    = 0
[pid  6143] mkdir("./file0", 0777)      = 0
[pid  6143] mount("/dev/loop1", "./file0", "bcachefs", MS_RDONLY|MS_SYNCHRONOUS|MS_MANDLOCK|MS_POSIXACL|MS_STRICTATIME, "errors=fix_safe,version_upgrade=none,noexcl,shard_inode_numbers," <unfinished ...>
[pid  6140] <... mount resumed>)        = 0
[pid  6140] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[  107.486660][ T6140] bcachefs (loop0): accounting_read... done
[  107.545039][ T6140] bcachefs (loop0): alloc_read... done
[pid  6140] chdir("./file0")            = 0
[pid  6140] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  6140] ioctl(4, LOOP_CLR_FD)       = 0
[pid  6140] close(4)                    = 0
[  107.569229][ T6140] bcachefs (loop0): snapshots_read... done
[pid  6140] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  6140] futex(0x7fb41c7b66a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  6139] <... futex resumed>)        = 0
[pid  6139] futex(0x7fb41c7b66a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  6140] <... futex resumed>)        = 0
[pid  6139] <... futex resumed>)        = 1
[pid  6140] mount(NULL, ".", NULL, MS_NODEV|MS_REMOUNT|MS_MOVE|MS_POSIXACL|MS_LAZYTIME, NULL <unfinished ...>
[  107.675806][ T6140] bcachefs (loop0): journal_replay... done
[  107.768211][ T6140] bcachefs (loop0): resume_logged_ops...
[  107.771968][ T6143] loop1: detected capacity change from 0 to 32768
[  107.778827][ T6140]  done
[pid  6139] futex(0x7fb41c7b66ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[  107.778845][ T6140] bcachefs (loop0): delete_dead_inodes... done
[  107.793653][ T6140] bcachefs (loop0): done starting filesystem
[  107.842495][ T6143] bcachefs (loop1): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=none,compression=lz4,nojournal_transaction_names,noexcl,read_only,version_upgrade=none
[  107.842524][ T6143]   allowing incompatible features above 0.0: (unknown version)
[pid  6143] <... mount resumed>)        = 0
[pid  6143] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid  6143] chdir("./file0")            = 0
[pid  6143] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4
[pid  6143] ioctl(4, LOOP_CLR_FD)       = 0
[pid  6143] close(4)                    = 0
[pid  6143] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  6143] futex(0x7fb41c7b66a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  6142] <... futex resumed>)        = 0
[pid  6142] futex(0x7fb41c7b66a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  6143] <... futex resumed>)        = 0
[pid  6142] <... futex resumed>)        = 1
[pid  6143] mount(NULL, ".", NULL, MS_NODEV|MS_REMOUNT|MS_MOVE|MS_POSIXACL|MS_LAZYTIME, NULL <unfinished ...>
[  107.842537][ T6143]   features: lz4,new_siphash,inline_data,new_extent_overwrite,btree_ptr_v2,new_varint,journal_no_flush,alloc_v2,extents_across_btree_nodes
[  107.842568][ T6143] bcachefs (loop1): Using encoding defined by superblock: utf8-12.1.0
[  107.842704][ T6143] bcachefs (loop1): recovering from clean shutdown, journal seq 13
[  107.857979][ T6140] bcachefs (loop0): going read-write
[  107.883985][ T6143] bcachefs (loop1): accounting_read... done
[  107.938117][ T6143] bcachefs (loop1): alloc_read... done
[pid  6142] futex(0x7fb41c7b66ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[  107.939038][ T6143] bcachefs (loop1): snapshots_read... done
[  107.953461][ T6143] bcachefs (loop1): journal_replay... done
[  107.955305][ T6143] bcachefs (loop1): resume_logged_ops... done
[  107.956408][ T6143] bcachefs (loop1): delete_dead_inodes... done
[  107.958777][ T6143] bcachefs (loop1): done starting filesystem
[  107.992219][ T6143] bcachefs (loop1): going read-write
[  107.996904][ T5837] bcachefs (loop3): flushing journal and stopping allocators, journal seq 13
[pid  6140] <... mount resumed>)        = 0
[pid  6140] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  6140] futex(0x7fb41c7b66a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  6139] exit_group(0 <unfinished ...>
[pid  6140] <... futex resumed>)        = ?
[pid  6139] <... exit_group resumed>)   = ?
[pid  6140] +++ exited with 0 +++
[pid  6139] +++ exited with 0 +++
[pid  5838] <... umount2 resumed>)      = 0
[pid  5838] umount2("./4/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6139, si_uid=0, si_status=0, si_utime=8 /* 0.08 s */, si_stime=31 /* 0.31 s */} ---
[pid  5838] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5833] umount2("./5", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[  108.057362][ T5837] bcachefs (loop3): flushing journal and stopping allocators complete, journal seq 13
[  108.082276][ T6165] bcachefs (loop0): backpointer doesn't match extent it points to:
[pid  5833] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[  108.082297][ T6165]   u64s 9 type backpointer 0:8921088:0 len 0 ver 0: bucket=0:34:8 btree=extents level=0 data_type=user suboffset=0 len=8 gen=0 pos=1073741825:24:U32_MAX
[  108.082315][ T6165]   u64s 8 type extent 1073741825:24:U32_MAX len 24 ver 2: durability: 1 crc: c_size 8 size 24 offset 0 nonce 0 csum chacha20_poly1305_80 5c1d:75853c64f7009f9d  compress lz4 ptr: 0:34:8 gen 0
[  108.082335][ T6165]   u64s 9 type backpointer 0:8921088:0 len 0 ver 0: bucket=0:34:8 btree=extents level=0 data_type=user suboffset=0 len=8 gen=0 pos=1073741825:24:U32_MAX, fixing
[pid  5838] newfstatat(AT_FDCWD, "./4/file0",  <unfinished ...>
[pid  5833] newfstatat(3, "",  <unfinished ...>
[pid  5838] <... newfstatat resumed>{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_EMPTY_PATH) = 0
[pid  5838] umount2("./4/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5833] getdents64(3,  <unfinished ...>
[pid  5838] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5833] <... getdents64 resumed>0x555575692730 /* 4 entries */, 32768) = 112
[pid  5838] openat(AT_FDCWD, "./4/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid  5833] umount2("./5/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5838] <... openat resumed>)       = 4
[pid  5838] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5838] getdents64(4, 0x55557569a770 /* 2 entries */, 32768) = 48
[pid  5838] getdents64(4,  <unfinished ...>
[pid  6143] <... mount resumed>)        = 0
[pid  6143] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[  108.124922][ T5837] bcachefs (loop3): clean shutdown complete, journal seq 14
[  108.178381][ T5833] bcachefs (loop0): shutting down
[  108.183465][ T5833] bcachefs (loop0): going read-only
[pid  6143] futex(0x7fb41c7b66a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  6142] exit_group(0 <unfinished ...>
[pid  5838] <... getdents64 resumed>0x55557569a770 /* 0 entries */, 32768) = 0
[  108.210248][ T6173] bcachefs (loop1): backpointer doesn't match extent it points to:
[  108.210267][ T6173]   u64s 9 type backpointer 0:8921088:0 len 0 ver 0: bucket=0:34:8 btree=extents level=0 data_type=user suboffset=0 len=8 gen=0 pos=1073741825:24:U32_MAX
[  108.210284][ T6173]   u64s 8 type extent 1073741825:24:U32_MAX len 24 ver 2: durability: 1 crc: c_size 8 size 24 offset 0 nonce 0 csum chacha20_poly1305_80 5c1d:75853c64f7009f9d  compress lz4 ptr: 0:34:8 gen 0
[pid  6143] <... futex resumed>)        = ?
[pid  6142] <... exit_group resumed>)   = ?
[pid  5838] close(4 <unfinished ...>
[pid  6143] +++ exited with 0 +++
[pid  6142] +++ exited with 0 +++
[pid  5838] <... close resumed>)        = 0
[pid  5835] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6142, si_uid=0, si_status=0, si_utime=7 /* 0.07 s */, si_stime=35 /* 0.35 s */} ---
[pid  5835] umount2("./5", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5835] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid  5835] newfstatat(3, "",  <unfinished ...>
[pid  5838] rmdir("./4/file0" <unfinished ...>
[pid  5835] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5835] getdents64(3, 0x555575692730 /* 4 entries */, 32768) = 112
[  108.210302][ T6173]   u64s 9 type backpointer 0:8921088:0 len 0 ver 0: bucket=0:34:8 btree=extents level=0 data_type=user suboffset=0 len=8 gen=0 pos=1073741825:24:U32_MAX, fixing
[  108.214978][ T5833] bcachefs (loop0): finished waiting for writes to stop
[  108.243978][ T6173] bcachefs (loop1): Detected missing backpointers in bucket 34, now have 1/128 with missing
[  108.253779][ T5837] bcachefs (loop3): marking filesystem clean
[  108.298545][ T6173]   scheduling recovery pass check_extents_to_backpointers (17)
[pid  5835] umount2("./5/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5838] <... rmdir resumed>)        = 0
[pid  5838] umount2("./4/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5838] newfstatat(AT_FDCWD, "./4/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5838] unlink("./4/binderfs")      = 0
[pid  5838] getdents64(3, 0x555575692730 /* 0 entries */, 32768) = 0
[pid  5838] close(3)                    = 0
[  108.310118][ T5833] bcachefs (loop0): flushing journal and stopping allocators, journal seq 13
[  108.326454][ T5835] bcachefs (loop1): shutting down
[  108.331532][ T5835] bcachefs (loop1): going read-only
[  108.345942][ T5833] bcachefs (loop0): flushing journal and stopping allocators complete, journal seq 13
[pid  5838] rmdir("./4" <unfinished ...>
[pid  6145] <... write resumed>)        = 16777216
[pid  5838] <... rmdir resumed>)        = 0
[pid  6145] munmap(0x7fb414200000, 138412032 <unfinished ...>
[pid  5838] mkdir("./5", 0777)          = 0
[pid  5838] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  5838] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  5838] close(3)                    = 0
[pid  5838] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6175 attached
, child_tidptr=0x555575691690) = 6175
[  108.357531][ T5835] bcachefs (loop1): finished waiting for writes to stop
[pid  6175] set_robust_list(0x5555756916a0, 24) = 0
[pid  6175] chdir("./5")                = 0
[pid  6175] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  6175] setpgid(0, 0)               = 0
[pid  6145] <... munmap resumed>)       = 0
[pid  6175] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[  108.383272][ T5835] bcachefs (loop1): flushing journal and stopping allocators, journal seq 14
[  108.393228][ T5833] bcachefs (loop0): clean shutdown complete, journal seq 14
[  108.408267][ T5835] bcachefs (loop1): flushing journal and stopping allocators complete, journal seq 14
[  108.413201][ T5837] bcachefs (loop3): shutdown complete
[  108.420090][ T5833] bcachefs (loop0): marking filesystem clean
[pid  6175] write(3, "1000", 4 <unfinished ...>
[pid  6145] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  6175] <... write resumed>)        = 4
[pid  6145] <... openat resumed>)       = 4
[pid  6175] close(3 <unfinished ...>
[pid  6145] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid  6175] <... close resumed>)        = 0
[pid  6175] symlink("/dev/binderfs", "./binderfs") = 0
[pid  6175] write(1, "executing program\n", 18executing program
) = 18
[pid  6175] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  6175] rt_sigaction(SIGRT_1, {sa_handler=0x7fb41c745060, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb41c736210}, NULL, 8) = 0
[pid  6175] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  6175] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb41c6b3000
[pid  6175] mprotect(0x7fb41c6b4000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  6145] <... ioctl resumed>)        = 0
[pid  6175] rt_sigprocmask(SIG_BLOCK, ~[],  <unfinished ...>
[pid  6145] close(3 <unfinished ...>
[pid  6175] <... rt_sigprocmask resumed>[], 8) = 0
[pid  6145] <... close resumed>)        = 0
[pid  6175] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb41c6d3990, parent_tid=0x7fb41c6d3990, exit_signal=0, stack=0x7fb41c6b3000, stack_size=0x20300, tls=0x7fb41c6d36c0} <unfinished ...>
[pid  6145] close(4)                    = 0
./strace-static-x86_64: Process 6176 attached
[pid  6175] <... clone3 resumed> => {parent_tid=[6176]}, 88) = 6176
[pid  6145] mkdir("./file0", 0777 <unfinished ...>
[pid  6175] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid  6145] <... mkdir resumed>)        = 0
[pid  6176] rseq(0x7fb41c6d3fe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid  6175] futex(0x7fb41c7b66a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  6145] mount("/dev/loop2", "./file0", "bcachefs", MS_RDONLY|MS_SYNCHRONOUS|MS_MANDLOCK|MS_POSIXACL|MS_STRICTATIME, "errors=fix_safe,version_upgrade=none,noexcl,shard_inode_numbers," <unfinished ...>
[pid  6176] <... rseq resumed>)         = 0
[pid  6175] <... futex resumed>)        = 0
[pid  6176] set_robust_list(0x7fb41c6d39a0, 24 <unfinished ...>
[pid  6175] futex(0x7fb41c7b66ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid  6176] <... set_robust_list resumed>) = 0
[pid  6176] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[  108.430873][ T5835] bcachefs (loop1): clean shutdown complete, journal seq 15
[  108.441790][ T5835] bcachefs (loop1): marking filesystem clean
[  108.462483][ T6145] loop2: detected capacity change from 0 to 32768
[pid  6176] memfd_create("syzkaller", 0) = 3
[pid  6176] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb414200000
[  108.532496][ T5833] bcachefs (loop0): shutdown complete
[  108.591633][ T6145] bcachefs (loop2): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=none,compression=lz4,nojournal_transaction_names,noexcl,read_only,version_upgrade=none
[  108.591660][ T6145]   allowing incompatible features above 0.0: (unknown version)
[  108.591673][ T6145]   features: lz4,new_siphash,inline_data,new_extent_overwrite,btree_ptr_v2,new_varint,journal_no_flush,alloc_v2,extents_across_btree_nodes
[  108.597801][ T5835] bcachefs (loop1): shutdown complete
[  108.654845][ T6145] bcachefs (loop2): Using encoding defined by superblock: utf8-12.1.0
[  108.686075][ T6145] bcachefs (loop2): recovering from clean shutdown, journal seq 13
[  108.791735][ T6145] bcachefs (loop2): accounting_read... done
[  108.880638][ T6145] bcachefs (loop2): alloc_read... done
[  108.925388][ T6145] bcachefs (loop2): snapshots_read... done
[  108.969156][ T6145] bcachefs (loop2): journal_replay... done
[pid  6176] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...>
[pid  6145] <... mount resumed>)        = 0
[pid  6145] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid  6145] chdir("./file0")            = 0
[pid  6145] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4
[pid  6145] ioctl(4, LOOP_CLR_FD)       = 0
[pid  6145] close(4)                    = 0
[  108.994468][ T6145] bcachefs (loop2): resume_logged_ops... done
[  109.003023][ T6145] bcachefs (loop2): delete_dead_inodes... done
[  109.013354][ T6145] bcachefs (loop2): done starting filesystem
[pid  6145] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  6144] <... futex resumed>)        = 0
[pid  6144] futex(0x7fb41c7b66a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  6145] mount(NULL, ".", NULL, MS_NODEV|MS_REMOUNT|MS_MOVE|MS_POSIXACL|MS_LAZYTIME, NULL <unfinished ...>
[pid  6144] futex(0x7fb41c7b66ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[  109.075423][ T6145] bcachefs (loop2): going read-write
[pid  5837] <... umount2 resumed>)      = 0
[pid  5837] umount2("./4/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5837] newfstatat(AT_FDCWD, "./4/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5837] umount2("./4/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5837] openat(AT_FDCWD, "./4/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid  5837] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5837] getdents64(4, 0x55557569a770 /* 2 entries */, 32768) = 48
[pid  5837] getdents64(4, 0x55557569a770 /* 0 entries */, 32768) = 0
[pid  5837] close(4)                    = 0
[pid  5837] rmdir("./4/file0")          = 0
[pid  5837] umount2("./4/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5837] newfstatat(AT_FDCWD, "./4/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5837] unlink("./4/binderfs")      = 0
[pid  5837] getdents64(3, 0x555575692730 /* 0 entries */, 32768) = 0
[pid  5837] close(3)                    = 0
[pid  5837] rmdir("./4" <unfinished ...>
[pid  6145] <... mount resumed>)        = 0
[pid  6145] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  6145] futex(0x7fb41c7b66a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5837] <... rmdir resumed>)        = 0
[pid  6144] exit_group(0 <unfinished ...>
[pid  6145] <... futex resumed>)        = ?
[pid  6144] <... exit_group resumed>)   = ?
[pid  6145] +++ exited with 0 +++
[pid  6144] +++ exited with 0 +++
[pid  5836] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6144, si_uid=0, si_status=0, si_utime=7 /* 0.07 s */, si_stime=41 /* 0.41 s */} ---
[pid  5836] umount2("./5", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5836] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid  5836] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5836] getdents64(3, 0x555575692730 /* 4 entries */, 32768) = 112
[pid  5836] umount2("./5/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5837] mkdir("./5", 0777)          = 0
[pid  5837] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  5837] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  5837] close(3)                    = 0
[pid  5837] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDexecuting program
, child_tidptr=0x555575691690) = 6187
./strace-static-x86_64: Process 6187 attached
[pid  6187] set_robust_list(0x5555756916a0, 24) = 0
[pid  6187] chdir("./5")                = 0
[pid  6187] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  6187] setpgid(0, 0)               = 0
[pid  6187] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  6187] write(3, "1000", 4)         = 4
[pid  6187] close(3)                    = 0
[pid  6187] symlink("/dev/binderfs", "./binderfs") = 0
[pid  6187] write(1, "executing program\n", 18) = 18
[pid  6187] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  6187] rt_sigaction(SIGRT_1, {sa_handler=0x7fb41c745060, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb41c736210}, NULL, 8) = 0
[pid  6187] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  6187] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb41c6b3000
[pid  6187] mprotect(0x7fb41c6b4000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  6187] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  6187] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb41c6d3990, parent_tid=0x7fb41c6d3990, exit_signal=0, stack=0x7fb41c6b3000, stack_size=0x20300, tls=0x7fb41c6d36c0} => {parent_tid=[6188]}, 88) = 6188
[pid  6187] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid  6187] futex(0x7fb41c7b66a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  6187] futex(0x7fb41c7b66ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 6188 attached
 <unfinished ...>
[pid  6188] rseq(0x7fb41c6d3fe0, 0x20, 0, 0x53053053) = 0
[pid  6188] set_robust_list(0x7fb41c6d39a0, 24) = 0
[pid  6188] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid  6188] memfd_create("syzkaller", 0) = 3
[pid  6188] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb414200000
[  109.223797][ T6185] bcachefs (loop2): backpointer doesn't match extent it points to:
[  109.223816][ T6185]   u64s 9 type backpointer 0:8921088:0 len 0 ver 0: bucket=0:34:8 btree=extents level=0 data_type=user suboffset=0 len=8 gen=0 pos=1073741825:24:U32_MAX
[  109.223832][ T6185]   u64s 8 type extent 1073741825:24:U32_MAX len 24 ver 2: durability: 1 crc: c_size 8 size 24 offset 0 nonce 0 csum chacha20_poly1305_80 5c1d:75853c64f7009f9d  compress lz4 ptr: 0:34:8 gen 0
[pid  6176] <... write resumed>)        = 16777216
[  109.223849][ T6185]   u64s 9 type backpointer 0:8921088:0 len 0 ver 0: bucket=0:34:8 btree=extents level=0 data_type=user suboffset=0 len=8 gen=0 pos=1073741825:24:U32_MAX, fixing
[  109.238639][ T5836] bcachefs (loop2): shutting down
[  109.238657][ T5836] bcachefs (loop2): going read-only
[pid  6176] munmap(0x7fb414200000, 138412032 <unfinished ...>
[pid  5833] <... umount2 resumed>)      = 0
[pid  5833] umount2("./5/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  6176] <... munmap resumed>)       = 0
[pid  5833] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./5/file0",  <unfinished ...>
[pid  6176] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  5833] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  6176] <... openat resumed>)       = 4
[pid  5833] umount2("./5/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  6176] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid  5833] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5833] openat(AT_FDCWD, "./5/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, 0x55557569a770 /* 2 entries */, 32768) = 48
[pid  5833] getdents64(4, 0x55557569a770 /* 0 entries */, 32768) = 0
[pid  5833] close(4)                    = 0
[pid  5833] rmdir("./5/file0")          = 0
[pid  5833] umount2("./5/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./5/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] unlink("./5/binderfs")      = 0
[pid  5833] getdents64(3, 0x555575692730 /* 0 entries */, 32768) = 0
[pid  5833] close(3)                    = 0
[pid  5833] rmdir("./5")                = 0
[pid  5833] mkdir("./6", 0777)          = 0
[pid  5833] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  5833] ioctl(3, LOOP_CLR_FD)       = -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 <unfinished ...>
[pid  6176] <... ioctl resumed>)        = 0
./strace-static-x86_64: Process 6189 attached
[pid  6176] close(3)                    = 0
[pid  6176] close(4)                    = 0
[  109.238683][ T5836] bcachefs (loop2): finished waiting for writes to stop
[  109.436706][ T5836] bcachefs (loop2): flushing journal and stopping allocators, journal seq 13
[  109.445819][ T5836] bcachefs (loop2): flushing journal and stopping allocators complete, journal seq 13
[  109.461220][ T5836] bcachefs (loop2): clean shutdown complete, journal seq 14
[  109.462266][ T6176] loop4: detected capacity change from 0 to 32768
[pid  6176] mkdir("./file0", 0777)      = 0
[pid  6189] set_robust_list(0x5555756916a0, 24 <unfinished ...>
[pid  5833] <... clone resumed>, child_tidptr=0x555575691690) = 6189
[pid  6189] <... set_robust_list resumed>) = 0
[pid  6189] chdir("./6")                = 0
[pid  6189] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  6189] setpgid(0, 0)               = 0
[pid  6189] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  6189] write(3, "1000", 4)         = 4
[pid  6189] close(3)                    = 0
[pid  6189] symlink("/dev/binderfs", "./binderfs") = 0
[pid  6176] mount("/dev/loop4", "./file0", "bcachefs", MS_RDONLY|MS_SYNCHRONOUS|MS_MANDLOCK|MS_POSIXACL|MS_STRICTATIME, "errors=fix_safe,version_upgrade=none,noexcl,shard_inode_numbers," <unfinished ...>
[pid  6189] write(1, "executing program\n", 18executing program
) = 18
[pid  6189] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  6189] rt_sigaction(SIGRT_1, {sa_handler=0x7fb41c745060, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb41c736210}, NULL, 8) = 0
[pid  6189] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  6189] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb41c6b3000
[pid  6189] mprotect(0x7fb41c6b4000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  6189] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  6189] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb41c6d3990, parent_tid=0x7fb41c6d3990, exit_signal=0, stack=0x7fb41c6b3000, stack_size=0x20300, tls=0x7fb41c6d36c0}./strace-static-x86_64: Process 6191 attached
 <unfinished ...>
[pid  6191] rseq(0x7fb41c6d3fe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid  6189] <... clone3 resumed> => {parent_tid=[6191]}, 88) = 6191
[pid  6191] <... rseq resumed>)         = 0
[pid  6189] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid  6189] futex(0x7fb41c7b66a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  6189] futex(0x7fb41c7b66ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid  6191] set_robust_list(0x7fb41c6d39a0, 24) = 0
[  109.497993][ T5836] bcachefs (loop2): marking filesystem clean
[pid  6191] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid  6191] memfd_create("syzkaller", 0) = 3
[pid  6191] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb414200000
[pid  5835] <... umount2 resumed>)      = 0
[pid  5835] umount2("./5/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5835] newfstatat(AT_FDCWD, "./5/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5835] umount2("./5/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5835] openat(AT_FDCWD, "./5/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, 0x55557569a770 /* 2 entries */, 32768) = 48
[pid  5835] getdents64(4, 0x55557569a770 /* 0 entries */, 32768) = 0
[pid  5835] close(4)                    = 0
[pid  5835] rmdir("./5/file0")          = 0
[pid  5835] umount2("./5/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5835] newfstatat(AT_FDCWD, "./5/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5835] unlink("./5/binderfs")      = 0
[pid  5835] getdents64(3, 0x555575692730 /* 0 entries */, 32768) = 0
[pid  5835] close(3)                    = 0
[pid  5835] rmdir("./5")                = 0
[pid  5835] mkdir("./6", 0777)          = 0
[pid  5835] openat(AT_FDCWD, "/dev/loop1", 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=0x555575691690) = 6192
./strace-static-x86_64: Process 6192 attached
[pid  6192] set_robust_list(0x5555756916a0, 24) = 0
[pid  6192] chdir("./6")                = 0
[pid  6192] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  6192] setpgid(0, 0)               = 0
[pid  6192] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[  109.630692][ T5836] bcachefs (loop2): shutdown complete
[  109.652538][ T6176] bcachefs (loop4): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=none,compression=lz4,nojournal_transaction_names,noexcl,read_only,version_upgrade=none
[pid  6192] write(3, "1000", 4)         = 4
[pid  6192] close(3)                    = 0
[pid  6192] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid  6192] write(1, "executing program\n", 18) = 18
[pid  6192] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  6192] rt_sigaction(SIGRT_1, {sa_handler=0x7fb41c745060, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb41c736210}, NULL, 8) = 0
[pid  6192] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  6192] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb41c6b3000
[pid  6192] mprotect(0x7fb41c6b4000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  6192] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  6192] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb41c6d3990, parent_tid=0x7fb41c6d3990, exit_signal=0, stack=0x7fb41c6b3000, stack_size=0x20300, tls=0x7fb41c6d36c0}./strace-static-x86_64: Process 6193 attached
 => {parent_tid=[6193]}, 88) = 6193
[pid  6192] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[  109.652565][ T6176]   allowing incompatible features above 0.0: (unknown version)
[  109.652578][ T6176]   features: lz4,new_siphash,inline_data,new_extent_overwrite,btree_ptr_v2,new_varint,journal_no_flush,alloc_v2,extents_across_btree_nodes
[pid  6193] rseq(0x7fb41c6d3fe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid  6192] futex(0x7fb41c7b66a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  6188] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...>
[pid  6193] <... rseq resumed>)         = 0
[pid  6193] set_robust_list(0x7fb41c6d39a0, 24) = 0
[pid  6193] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid  6193] memfd_create("syzkaller", 0 <unfinished ...>
[pid  6192] <... futex resumed>)        = 0
[pid  6192] futex(0x7fb41c7b66ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid  6193] <... memfd_create resumed>) = 3
[pid  6193] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb414200000
[  109.786893][ T6176] bcachefs (loop4): Using encoding defined by superblock: utf8-12.1.0
[  109.805288][ T6176] bcachefs (loop4): recovering from clean shutdown, journal seq 13
[  109.905877][ T6176] bcachefs (loop4): accounting_read... done
[  109.922588][ T6176] bcachefs (loop4): alloc_read... done
[  109.931254][ T6176] bcachefs (loop4): snapshots_read... done
[pid  6191] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...>
[  110.021485][ T6176] bcachefs (loop4): journal_replay... done
[pid  6193] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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  6188] <... write resumed>)        = 16777216
[pid  6188] munmap(0x7fb414200000, 138412032) = 0
[  110.104886][ T6176] bcachefs (loop4): resume_logged_ops... done
[  110.131058][ T6176] bcachefs (loop4): delete_dead_inodes... done
[pid  6188] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4
[pid  6188] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid  6176] <... mount resumed>)        = 0
[pid  6176] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid  6176] chdir("./file0")            = 0
[pid  6176] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4
[pid  6176] ioctl(4, LOOP_CLR_FD)       = 0
[pid  6176] close(4)                    = 0
[pid  6176] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  6175] <... futex resumed>)        = 0
[pid  6176] mount(NULL, ".", NULL, MS_NODEV|MS_REMOUNT|MS_MOVE|MS_POSIXACL|MS_LAZYTIME, NULL <unfinished ...>
[pid  6175] futex(0x7fb41c7b66a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  6175] futex(0x7fb41c7b66ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  6188] <... ioctl resumed>)        = 0
[pid  6188] close(3)                    = 0
[pid  6188] close(4)                    = 0
[pid  6188] mkdir("./file0", 0777)      = 0
[  110.174998][ T6176] bcachefs (loop4): done starting filesystem
[  110.187411][ T6188] loop3: detected capacity change from 0 to 32768
[  110.201866][ T6176] bcachefs (loop4): going read-write
[pid  6188] mount("/dev/loop3", "./file0", "bcachefs", MS_RDONLY|MS_SYNCHRONOUS|MS_MANDLOCK|MS_POSIXACL|MS_STRICTATIME, "errors=fix_safe,version_upgrade=none,noexcl,shard_inode_numbers," <unfinished ...>
[pid  6191] <... write resumed>)        = 16777216
[pid  6175] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  6191] munmap(0x7fb414200000, 138412032 <unfinished ...>
[pid  6176] <... mount resumed>)        = 0
[pid  6176] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  6191] <... munmap resumed>)       = 0
[pid  6175] exit_group(0)               = ?
[  110.314591][ T6202] bcachefs (loop4): backpointer doesn't match extent it points to:
[  110.314612][ T6202]   u64s 9 type backpointer 0:8921088:0 len 0 ver 0: bucket=0:34:8 btree=extents level=0 data_type=user suboffset=0 len=8 gen=0 pos=1073741825:24:U32_MAX
[pid  6191] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  6191] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  6191] close(3)                    = 0
[pid  6191] close(4)                    = 0
[pid  6191] mkdir("./file0", 0777)      = 0
[pid  6191] mount("/dev/loop0", "./file0", "bcachefs", MS_RDONLY|MS_SYNCHRONOUS|MS_MANDLOCK|MS_POSIXACL|MS_STRICTATIME, "errors=fix_safe,version_upgrade=none,noexcl,shard_inode_numbers," <unfinished ...>
[pid  6176] +++ exited with 0 +++
[pid  6175] +++ exited with 0 +++
[pid  5838] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6175, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=45 /* 0.45 s */} ---
[pid  5838] umount2("./5", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5838] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid  5838] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5838] getdents64(3, 0x555575692730 /* 4 entries */, 32768) = 112
[pid  5838] umount2("./5/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5836] <... umount2 resumed>)      = 0
[pid  5836] umount2("./5/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[  110.314629][ T6202]   u64s 8 type extent 1073741825:24:U32_MAX len 24 ver 2: durability: 1 crc: c_size 8 size 24 offset 0 nonce 0 csum chacha20_poly1305_80 5c1d:75853c64f7009f9d  compress lz4 ptr: 0:34:8 gen 0
[pid  5836] newfstatat(AT_FDCWD, "./5/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5836] umount2("./5/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[  110.314649][ T6202]   u64s 9 type backpointer 0:8921088:0 len 0 ver 0: bucket=0:34:8 btree=extents level=0 data_type=user suboffset=0 len=8 gen=0 pos=1073741825:24:U32_MAX, fixing
[  110.360710][ T6191] loop0: detected capacity change from 0 to 32768
[  110.457044][ T5838] bcachefs (loop4): shutting down
[  110.457065][ T5838] bcachefs (loop4): going read-only
[  110.457094][ T5838] bcachefs (loop4): finished waiting for writes to stop
[  110.458342][ T6188] bcachefs (loop3): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=none,compression=lz4,nojournal_transaction_names,noexcl,read_only,version_upgrade=none
[  110.458365][ T6188]   allowing incompatible features above 0.0: (unknown version)
[  110.458378][ T6188]   features: lz4,new_siphash,inline_data,new_extent_overwrite,btree_ptr_v2,new_varint,journal_no_flush,alloc_v2,extents_across_btree_nodes
[  110.458408][ T6188] bcachefs (loop3): Using encoding defined by superblock: utf8-12.1.0
[  110.458532][ T6188] bcachefs (loop3): recovering from clean shutdown, journal seq 13
[pid  6193] <... write resumed>)        = 16777216
[pid  5836] openat(AT_FDCWD, "./5/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid  6193] munmap(0x7fb414200000, 138412032 <unfinished ...>
[pid  5836] <... openat resumed>)       = 4
[pid  5836] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5836] getdents64(4, 0x55557569a770 /* 2 entries */, 32768) = 48
[pid  5836] getdents64(4, 0x55557569a770 /* 0 entries */, 32768) = 0
[pid  5836] close(4)                    = 0
[pid  5836] rmdir("./5/file0")          = 0
[pid  5836] umount2("./5/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5836] newfstatat(AT_FDCWD, "./5/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5836] unlink("./5/binderfs")      = 0
[pid  5836] getdents64(3, 0x555575692730 /* 0 entries */, 32768) = 0
[pid  5836] close(3)                    = 0
[pid  5836] rmdir("./5")                = 0
[pid  5836] mkdir("./6", 0777)          = 0
[pid  5836] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  5836] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[  110.584037][ T6191] bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=none,compression=lz4,nojournal_transaction_names,noexcl,read_only,version_upgrade=none
[  110.668960][ T5838] bcachefs (loop4): flushing journal and stopping allocators, journal seq 13
[  110.680916][ T5838] bcachefs (loop4): flushing journal and stopping allocators complete, journal seq 13
[  110.693376][ T6191]   allowing incompatible features above 0.0: (unknown version)
[pid  5836] close(3)                    = 0
[pid  5836] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6205 attached
[  110.701387][ T6191]   features: lz4,new_siphash,inline_data,new_extent_overwrite,btree_ptr_v2,new_varint,journal_no_flush,alloc_v2,extents_across_btree_nodes
[  110.716224][ T6191] bcachefs (loop0): Using encoding defined by superblock: utf8-12.1.0
[  110.729153][ T6188] bcachefs (loop3): accounting_read...
[  110.729227][ T5838] bcachefs (loop4): clean shutdown complete, journal seq 14
[  110.754518][ T5838] bcachefs (loop4): marking filesystem clean
 <unfinished ...>
[pid  6193] <... munmap resumed>)       = 0
[pid  5836] <... clone resumed>, child_tidptr=0x555575691690) = 6205
[pid  6193] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4
[pid  6193] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[  110.767270][ T6188]  done
[  110.770197][ T6188] bcachefs (loop3): alloc_read...
[  110.771580][ T6191] bcachefs (loop0): recovering from clean shutdown, journal seq 13
[  110.775317][ T6188]  done
[  110.798109][ T6188] bcachefs (loop3): snapshots_read...
[  110.798449][ T6193] loop1: detected capacity change from 0 to 32768
[  110.800405][ T6188]  done
[pid  6205] set_robust_list(0x5555756916a0, 24 <unfinished ...>
[pid  6193] <... ioctl resumed>)        = 0
[pid  6193] close(3)                    = 0
[pid  6193] close(4 <unfinished ...>
[pid  6205] <... set_robust_list resumed>) = 0
[pid  6205] chdir("./6" <unfinished ...>
[pid  6193] <... close resumed>)        = 0
[pid  6205] <... chdir resumed>)        = 0
[pid  6193] mkdir("./file0", 0777 <unfinished ...>
[pid  6205] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  6193] <... mkdir resumed>)        = 0
[pid  6205] <... prctl resumed>)        = 0
[pid  6193] mount("/dev/loop1", "./file0", "bcachefs", MS_RDONLY|MS_SYNCHRONOUS|MS_MANDLOCK|MS_POSIXACL|MS_STRICTATIME, "errors=fix_safe,version_upgrade=none,noexcl,shard_inode_numbers," <unfinished ...>
[pid  6205] setpgid(0, 0)               = 0
[pid  6205] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  6205] write(3, "1000", 4)         = 4
[  110.819751][ T5838] bcachefs (loop4): shutdown complete
[pid  6205] close(3)                    = 0
[pid  6205] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid  6205] write(1, "executing program\n", 18) = 18
[pid  6205] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  6205] rt_sigaction(SIGRT_1, {sa_handler=0x7fb41c745060, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb41c736210}, NULL, 8) = 0
[pid  6205] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  6205] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb41c6b3000
[pid  6205] mprotect(0x7fb41c6b4000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  6205] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  6205] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb41c6d3990, parent_tid=0x7fb41c6d3990, exit_signal=0, stack=0x7fb41c6b3000, stack_size=0x20300, tls=0x7fb41c6d36c0}./strace-static-x86_64: Process 6207 attached
 => {parent_tid=[6207]}, 88) = 6207
[pid  6205] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[  110.851438][ T6191] bcachefs (loop0): accounting_read...
[  110.857693][ T6188] bcachefs (loop3): journal_replay... done
[  110.874905][ T6191]  done
[  110.887417][ T6191] bcachefs (loop0): alloc_read...
[  110.887828][ T6188] bcachefs (loop3): resume_logged_ops...
[pid  6207] rseq(0x7fb41c6d3fe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid  6205] futex(0x7fb41c7b66a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  6207] <... rseq resumed>)         = 0
[pid  6205] <... futex resumed>)        = 0
[pid  6207] set_robust_list(0x7fb41c6d39a0, 24) = 0
[pid  6205] futex(0x7fb41c7b66ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid  6207] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid  6207] memfd_create("syzkaller", 0) = 3
[pid  6207] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb414200000
[  110.901782][ T6191]  done
[  110.906353][ T6188]  done
[  110.913616][ T6188] bcachefs (loop3): delete_dead_inodes...
[  110.915370][ T6191] bcachefs (loop0): snapshots_read...
[  110.933798][ T6188]  done
[  110.937373][ T6193] bcachefs (loop1): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=none,compression=lz4,nojournal_transaction_names,noexcl,read_only,version_upgrade=none
[  110.962885][ T6191]  done
[  110.962950][ T6193]   allowing incompatible features above 0.0: (unknown version)
[  110.968444][ T6188] bcachefs (loop3): done starting filesystem
[  110.973391][ T6193]   features: lz4,new_siphash,inline_data,new_extent_overwrite,btree_ptr_v2,new_varint,journal_no_flush,alloc_v2,extents_across_btree_nodes
[  110.994262][ T6193] bcachefs (loop1): Using encoding defined by superblock: utf8-12.1.0
[pid  6188] <... mount resumed>)        = 0
[pid  6188] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid  6188] chdir("./file0")            = 0
[pid  6188] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4
[pid  6188] ioctl(4, LOOP_CLR_FD)       = 0
[pid  6188] close(4)                    = 0
[pid  6188] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[  111.002804][ T6193] bcachefs (loop1): recovering from clean shutdown, journal seq 13
[  111.011712][ T6191] bcachefs (loop0): journal_replay... done
[  111.038379][ T6193] bcachefs (loop1): accounting_read...
[  111.040998][ T6191] bcachefs (loop0): resume_logged_ops...
[  111.041123][ T6193]  done
[  111.056114][ T6191]  done
[pid  6188] futex(0x7fb41c7b66a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  6187] <... futex resumed>)        = 0
[pid  6187] futex(0x7fb41c7b66a8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  6187] futex(0x7fb41c7b66ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  6188] <... futex resumed>)        = 0
[  111.056128][ T6191] bcachefs (loop0): delete_dead_inodes... done
[  111.085979][ T6188] bcachefs (loop3): going read-write
[  111.092592][ T6193] bcachefs (loop1): alloc_read... done
[  111.100313][ T6193] bcachefs (loop1): snapshots_read... done
[pid  6188] mount(NULL, ".", NULL, MS_NODEV|MS_REMOUNT|MS_MOVE|MS_POSIXACL|MS_LAZYTIME, NULL <unfinished ...>
[pid  6191] <... mount resumed>)        = 0
[pid  6187] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  6191] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid  6191] chdir("./file0")            = 0
[pid  6191] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[  111.110509][ T6191] bcachefs (loop0): done starting filesystem
[  111.136418][ T6193] bcachefs (loop1): journal_replay... done
[  111.145249][ T6193] bcachefs (loop1): resume_logged_ops... done
[  111.152265][ T6193] bcachefs (loop1): delete_dead_inodes... done
[pid  6191] ioctl(4, LOOP_CLR_FD)       = 0
[pid  6191] close(4)                    = 0
[pid  6191] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  6189] <... futex resumed>)        = 0
[pid  6191] mount(NULL, ".", NULL, MS_NODEV|MS_REMOUNT|MS_MOVE|MS_POSIXACL|MS_LAZYTIME, NULL <unfinished ...>
[pid  6189] futex(0x7fb41c7b66a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  6193] <... mount resumed>)        = 0
[pid  6189] <... futex resumed>)        = 0
[pid  6193] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid  6189] futex(0x7fb41c7b66ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  6193] <... openat resumed>)       = 3
[pid  6193] chdir("./file0")            = 0
[pid  6193] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4
[pid  6188] <... mount resumed>)        = 0
[pid  6193] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid  6188] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  6188] futex(0x7fb41c7b66a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[  111.162038][ T6193] bcachefs (loop1): done starting filesystem
[  111.170785][ T6191] bcachefs (loop0): going read-write
[  111.198664][ T6215] bcachefs (loop3): backpointer doesn't match extent it points to:
[pid  6187] exit_group(0 <unfinished ...>
[pid  6193] <... ioctl resumed>)        = 0
[pid  6189] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  6188] <... futex resumed>)        = ?
[pid  6187] <... exit_group resumed>)   = ?
[pid  6188] +++ exited with 0 +++
[pid  6187] +++ exited with 0 +++
[pid  6193] close(4 <unfinished ...>
[pid  5837] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6187, si_uid=0, si_status=0, si_utime=10 /* 0.10 s */, si_stime=37 /* 0.37 s */} ---
[pid  5837] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  6193] <... close resumed>)        = 0
[pid  6193] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5837] umount2("./5", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5837] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid  5837] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5837] getdents64(3, 0x555575692730 /* 4 entries */, 32768) = 112
[pid  5837] umount2("./5/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  6193] <... futex resumed>)        = 1
[pid  6192] <... futex resumed>)        = 0
[pid  6193] mount(NULL, ".", NULL, MS_NODEV|MS_REMOUNT|MS_MOVE|MS_POSIXACL|MS_LAZYTIME, NULL <unfinished ...>
[pid  6192] futex(0x7fb41c7b66a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[  111.198685][ T6215]   u64s 9 type backpointer 0:8921088:0 len 0 ver 0: bucket=0:34:8 btree=extents level=0 data_type=user suboffset=0 len=8 gen=0 pos=1073741825:24:U32_MAX
[pid  6192] futex(0x7fb41c7b66ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[  111.198703][ T6215]   u64s 8 type extent 1073741825:24:U32_MAX len 24 ver 2: durability: 1 crc: c_size 8 size 24 offset 0 nonce 0 csum chacha20_poly1305_80 5c1d:75853c64f7009f9d  compress lz4 ptr: 0:34:8 gen 0
[pid  6191] <... mount resumed>)        = 0
[pid  6191] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  6189] exit_group(0)               = ?
[pid  6191] +++ exited with 0 +++
[pid  6189] +++ exited with 0 +++
[pid  5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6189, si_uid=0, si_status=0, si_utime=10 /* 0.10 s */, si_stime=49 /* 0.49 s */} ---
[pid  5833] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  6193] <... mount resumed>)        = 0
[pid  5833] <... restart_syscall resumed>) = 0
[pid  5833] umount2("./6", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid  5833] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[  111.198721][ T6215]   u64s 9 type backpointer 0:8921088:0 len 0 ver 0: bucket=0:34:8 btree=extents level=0 data_type=user suboffset=0 len=8 gen=0 pos=1073741825:24:U32_MAX, fixing
[  111.285625][ T5837] bcachefs (loop3): shutting down
[  111.285657][ T5837] bcachefs (loop3): going read-only
[  111.285682][ T5837] bcachefs (loop3): finished waiting for writes to stop
[  111.287596][ T6193] bcachefs (loop1): going read-write
[  111.394101][ T6230] bcachefs (loop0): backpointer doesn't match extent it points to:
[pid  5833] getdents64(3, 0x555575692730 /* 4 entries */, 32768) = 112
[  111.394123][ T6230]   u64s 9 type backpointer 0:8921088:0 len 0 ver 0: bucket=0:34:8 btree=extents level=0 data_type=user suboffset=0 len=8 gen=0 pos=1073741825:24:U32_MAX
[  111.394140][ T6230]   u64s 8 type extent 1073741825:24:U32_MAX len 24 ver 2: durability: 1 crc: c_size 8 size 24 offset 0 nonce 0 csum chacha20_poly1305_80 5c1d:75853c64f7009f9d  compress lz4 ptr: 0:34:8 gen 0
[pid  5833] umount2("./6/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  6207] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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  6193] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  6193] futex(0x7fb41c7b66a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  6192] exit_group(0)               = ?
[pid  6193] <... futex resumed>)        = ?
[pid  6193] +++ exited with 0 +++
[pid  6192] +++ exited with 0 +++
[  111.394159][ T6230]   u64s 9 type backpointer 0:8921088:0 len 0 ver 0: bucket=0:34:8 btree=extents level=0 data_type=user suboffset=0 len=8 gen=0 pos=1073741825:24:U32_MAX, fixing
[  111.407258][ T6233] bcachefs (loop1): backpointer doesn't match extent it points to:
[  111.414118][ T5837] bcachefs (loop3): flushing journal and stopping allocators, journal seq 13
[  111.453867][ T6233]   u64s 9 type backpointer 0:8921088:0 len 0 ver 0: bucket=0:34:8 btree=extents level=0 data_type=user suboffset=0 len=8 gen=0 pos=1073741825:24:U32_MAX
[  111.485432][ T6230] bcachefs (loop0): Detected missing backpointers in bucket 34, now have 1/128 with missing
[pid  5835] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6192, si_uid=0, si_status=0, si_utime=8 /* 0.08 s */, si_stime=47 /* 0.47 s */} ---
[pid  5835] umount2("./6", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5835] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid  5835] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5835] getdents64(3, 0x555575692730 /* 4 entries */, 32768) = 112
[  111.485454][ T6230]   scheduling recovery pass check_extents_to_backpointers (17)
[  111.490030][ T5837] bcachefs (loop3): flushing journal and stopping allocators complete, journal seq 13
[  111.558655][ T5835] bcachefs (loop1): shutting down
[  111.563740][ T5835] bcachefs (loop1): going read-only
[  111.572840][ T5833] bcachefs (loop0): shutting down
[  111.578049][ T5833] bcachefs (loop0): going read-only
[  111.596355][ T5833] bcachefs (loop0): finished waiting for writes to stop
[  111.603756][ T5835] bcachefs (loop1): finished waiting for writes to stop
[  111.615064][ T5837] bcachefs (loop3): clean shutdown complete, journal seq 14
[  111.623076][ T5837] bcachefs (loop3): marking filesystem clean
[  111.637877][ T6233]   u64s 8 type extent 1073741825:24:U32_MAX len 24 ver 2: durability: 1 crc: c_size 8 size 24 offset 0 nonce 0 csum chacha20_poly1305_80 5c1d:75853c64f7009f9d  compress lz4 ptr: 0:34:8 gen 0
[  111.665404][ T5833] bcachefs (loop0): flushing journal and stopping allocators, journal seq 15
[  111.694938][ T5833] bcachefs (loop0): flushing journal and stopping allocators complete, journal seq 15
[  111.715592][ T6233]   u64s 9 type backpointer 0:8921088:0 len 0 ver 0: bucket=0:34:8 btree=extents level=0 data_type=user suboffset=0 len=8 gen=0 pos=1073741825:24:U32_MAX, fixing
[pid  5835] umount2("./6/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  6207] <... write resumed>)        = 16777216
[  111.745958][ T5833] bcachefs (loop0): clean shutdown complete, journal seq 16
[  111.753965][ T5833] bcachefs (loop0): marking filesystem clean
[  111.782943][ T5835] bcachefs (loop1): flushing journal and stopping allocators, journal seq 13
[pid  6207] munmap(0x7fb414200000, 138412032) = 0
[pid  6207] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4
[pid  6207] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  6207] close(3)                    = 0
[pid  6207] close(4)                    = 0
[pid  6207] mkdir("./file0", 0777)      = 0
[  111.794487][ T5837] bcachefs (loop3): shutdown complete
[  111.805209][ T5835] bcachefs (loop1): flushing journal and stopping allocators complete, journal seq 13
[  111.820096][ T6207] loop2: detected capacity change from 0 to 32768
[pid  6207] mount("/dev/loop2", "./file0", "bcachefs", MS_RDONLY|MS_SYNCHRONOUS|MS_MANDLOCK|MS_POSIXACL|MS_STRICTATIME, "errors=fix_safe,version_upgrade=none,noexcl,shard_inode_numbers," <unfinished ...>
[pid  5838] <... umount2 resumed>)      = 0
[pid  5838] umount2("./5/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5838] newfstatat(AT_FDCWD, "./5/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5838] umount2("./5/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5838] openat(AT_FDCWD, "./5/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid  5838] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5838] getdents64(4, 0x55557569a770 /* 2 entries */, 32768) = 48
[pid  5838] getdents64(4, 0x55557569a770 /* 0 entries */, 32768) = 0
[pid  5838] close(4)                    = 0
[pid  5838] rmdir("./5/file0")          = 0
[pid  5838] umount2("./5/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5838] newfstatat(AT_FDCWD, "./5/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5838] unlink("./5/binderfs")      = 0
[pid  5838] getdents64(3, 0x555575692730 /* 0 entries */, 32768) = 0
[pid  5838] close(3)                    = 0
[pid  5838] rmdir("./5")                = 0
[pid  5838] mkdir("./6", 0777)          = 0
[  111.859740][ T5835] bcachefs (loop1): clean shutdown complete, journal seq 14
[  111.884111][ T5835] bcachefs (loop1): marking filesystem clean
[pid  5838] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  5838] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  5838] close(3)                    = 0
[pid  5838] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555575691690) = 6236
./strace-static-x86_64: Process 6236 attached
[pid  6236] set_robust_list(0x5555756916a0, 24) = 0
[pid  6236] chdir("./6")                = 0
[pid  6236] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  6236] setpgid(0, 0)               = 0
[pid  6236] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  6236] write(3, "1000", 4)         = 4
[pid  6236] close(3)                    = 0
[pid  6236] symlink("/dev/binderfs", "./binderfs") = 0
[pid  6236] write(1, "executing program\n", 18executing program
) = 18
[pid  6236] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  6236] rt_sigaction(SIGRT_1, {sa_handler=0x7fb41c745060, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb41c736210}, NULL, 8) = 0
[pid  6236] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  6236] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb41c6b3000
[pid  6236] mprotect(0x7fb41c6b4000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  6236] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  6236] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb41c6d3990, parent_tid=0x7fb41c6d3990, exit_signal=0, stack=0x7fb41c6b3000, stack_size=0x20300, tls=0x7fb41c6d36c0}./strace-static-x86_64: Process 6237 attached
 => {parent_tid=[6237]}, 88) = 6237
[pid  6236] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid  6236] futex(0x7fb41c7b66a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  6237] rseq(0x7fb41c6d3fe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid  6236] <... futex resumed>)        = 0
[pid  6237] <... rseq resumed>)         = 0
[pid  6236] futex(0x7fb41c7b66ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid  6237] set_robust_list(0x7fb41c6d39a0, 24) = 0
[pid  6237] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[  112.037403][ T5833] bcachefs (loop0): shutdown complete
[  112.044453][ T5835] bcachefs (loop1): shutdown complete
[  112.052320][ T6207] bcachefs (loop2): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=none,compression=lz4,nojournal_transaction_names,noexcl,read_only,version_upgrade=none
[pid  6237] memfd_create("syzkaller", 0) = 3
[pid  6237] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb414200000
[  112.052347][ T6207]   allowing incompatible features above 0.0: (unknown version)
[  112.052359][ T6207]   features: lz4,new_siphash,inline_data,new_extent_overwrite,btree_ptr_v2,new_varint,journal_no_flush,alloc_v2,extents_across_btree_nodes
[  112.204827][ T6207] bcachefs (loop2): Using encoding defined by superblock: utf8-12.1.0
[  112.235006][ T6207] bcachefs (loop2): recovering from clean shutdown, journal seq 13
[pid  5837] <... umount2 resumed>)      = 0
[pid  5837] umount2("./5/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5837] newfstatat(AT_FDCWD, "./5/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5837] umount2("./5/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5837] openat(AT_FDCWD, "./5/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid  5837] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5837] getdents64(4, 0x55557569a770 /* 2 entries */, 32768) = 48
[pid  5837] getdents64(4, 0x55557569a770 /* 0 entries */, 32768) = 0
[pid  5837] close(4)                    = 0
[pid  5837] rmdir("./5/file0")          = 0
[pid  5837] umount2("./5/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  6237] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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] newfstatat(AT_FDCWD, "./5/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5837] unlink("./5/binderfs")      = 0
[pid  5837] getdents64(3, 0x555575692730 /* 0 entries */, 32768) = 0
[pid  5837] close(3)                    = 0
[pid  5837] rmdir("./5")                = 0
[pid  5837] mkdir("./6", 0777)          = 0
[pid  5837] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  5837] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  5837] close(3)                    = 0
[  112.365582][ T6207] bcachefs (loop2): accounting_read... done
[  112.382345][ T6207] bcachefs (loop2): alloc_read... done
[  112.392121][ T6207] bcachefs (loop2): snapshots_read... done
[  112.413059][ T6207] bcachefs (loop2): journal_replay... done
[pid  5837] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6238 attached
 <unfinished ...>
[pid  6238] set_robust_list(0x5555756916a0, 24) = 0
[pid  6238] chdir("./6")                = 0
[pid  6238] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  6238] setpgid(0, 0 <unfinished ...>
[pid  5837] <... clone resumed>, child_tidptr=0x555575691690) = 6238
[pid  6238] <... setpgid resumed>)      = 0
[pid  6238] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  6238] write(3, "1000", 4)         = 4
executing program
[pid  6238] close(3)                    = 0
[pid  6238] symlink("/dev/binderfs", "./binderfs") = 0
[pid  6238] write(1, "executing program\n", 18) = 18
[pid  6238] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  6238] rt_sigaction(SIGRT_1, {sa_handler=0x7fb41c745060, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb41c736210}, NULL, 8) = 0
[pid  6238] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  6238] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb41c6b3000
[pid  6238] mprotect(0x7fb41c6b4000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  6238] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  6238] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb41c6d3990, parent_tid=0x7fb41c6d3990, exit_signal=0, stack=0x7fb41c6b3000, stack_size=0x20300, tls=0x7fb41c6d36c0} => {parent_tid=[6239]}, 88) = 6239
[pid  6238] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid  6238] futex(0x7fb41c7b66a8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 6239 attached
) = 0
[pid  6238] futex(0x7fb41c7b66ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid  6239] rseq(0x7fb41c6d3fe0, 0x20, 0, 0x53053053) = 0
[pid  6239] set_robust_list(0x7fb41c6d39a0, 24) = 0
[pid  6239] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid  6239] memfd_create("syzkaller", 0) = 3
[pid  6239] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb414200000
[  112.442617][ T6207] bcachefs (loop2): resume_logged_ops... done
[  112.462810][ T6207] bcachefs (loop2): delete_dead_inodes... done
[pid  6207] <... mount resumed>)        = 0
[pid  6207] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid  6207] chdir("./file0")            = 0
[pid  6207] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4
[pid  6207] ioctl(4, LOOP_CLR_FD)       = 0
[pid  6207] close(4)                    = 0
[pid  6207] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  6207] futex(0x7fb41c7b66a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  6205] <... futex resumed>)        = 0
[pid  6205] futex(0x7fb41c7b66a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  6207] <... futex resumed>)        = 0
[pid  6205] <... futex resumed>)        = 1
[  112.525584][ T6207] bcachefs (loop2): done starting filesystem
[pid  6207] mount(NULL, ".", NULL, MS_NODEV|MS_REMOUNT|MS_MOVE|MS_POSIXACL|MS_LAZYTIME, NULL <unfinished ...>
[  112.582904][ T6207] bcachefs (loop2): going read-write
[pid  6205] futex(0x7fb41c7b66ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[pid  6207] <... mount resumed>)        = 0
[pid  6207] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  6205] exit_group(0)               = ?
[pid  6207] +++ exited with 0 +++
[pid  6205] +++ exited with 0 +++
[pid  5836] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6205, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=29 /* 0.29 s */} ---
[pid  5836] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  5836] umount2("./6", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5836] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid  5836] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5836] getdents64(3, 0x555575692730 /* 4 entries */, 32768) = 112
[  112.717695][ T6247] bcachefs (loop2): backpointer doesn't match extent it points to:
[pid  5836] umount2("./6/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5835] <... umount2 resumed>)      = 0
[  112.717716][ T6247]   u64s 9 type backpointer 0:8921088:0 len 0 ver 0: bucket=0:34:8 btree=extents level=0 data_type=user suboffset=0 len=8 gen=0 pos=1073741825:24:U32_MAX
[  112.717732][ T6247]   u64s 8 type extent 1073741825:24:U32_MAX len 24 ver 2: durability: 1 crc: c_size 8 size 24 offset 0 nonce 0 csum chacha20_poly1305_80 5c1d:75853c64f7009f9d  compress lz4 ptr: 0:34:8 gen 0
[pid  5835] umount2("./6/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5835] newfstatat(AT_FDCWD, "./6/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5835] umount2("./6/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5835] openat(AT_FDCWD, "./6/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[  112.717749][ T6247]   u64s 9 type backpointer 0:8921088:0 len 0 ver 0: bucket=0:34:8 btree=extents level=0 data_type=user suboffset=0 len=8 gen=0 pos=1073741825:24:U32_MAX, fixing
[  112.795082][ T5836] bcachefs (loop2): shutting down
[  112.795101][ T5836] bcachefs (loop2): going read-only
[  112.795128][ T5836] bcachefs (loop2): finished waiting for writes to stop
[  112.855366][ T5836] bcachefs (loop2): flushing journal and stopping allocators, journal seq 13
[pid  5835] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5835] getdents64(4, 0x55557569a770 /* 2 entries */, 32768) = 48
[pid  5835] getdents64(4, 0x55557569a770 /* 0 entries */, 32768) = 0
[pid  5835] close(4)                    = 0
[pid  5835] rmdir("./6/file0")          = 0
[pid  5835] umount2("./6/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5835] newfstatat(AT_FDCWD, "./6/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5835] unlink("./6/binderfs")      = 0
[pid  5835] getdents64(3, 0x555575692730 /* 0 entries */, 32768) = 0
[pid  5835] close(3)                    = 0
[pid  5835] rmdir("./6")                = 0
[pid  5835] mkdir("./7", 0777)          = 0
[pid  5835] openat(AT_FDCWD, "/dev/loop1", 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 6249 attached
 <unfinished ...>
[pid  6249] set_robust_list(0x5555756916a0, 24 <unfinished ...>
[pid  5835] <... clone resumed>, child_tidptr=0x555575691690) = 6249
[pid  6249] <... set_robust_list resumed>) = 0
[pid  6249] chdir("./7")                = 0
[pid  6249] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  6249] setpgid(0, 0)               = 0
[pid  6249] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  6249] write(3, "1000", 4)         = 4
[pid  6249] close(3)                    = 0
[pid  6249] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid  6249] write(1, "executing program\n", 18) = 18
[pid  6249] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  6249] rt_sigaction(SIGRT_1, {sa_handler=0x7fb41c745060, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb41c736210}, NULL, 8) = 0
[pid  6249] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  6249] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb41c6b3000
[pid  6249] mprotect(0x7fb41c6b4000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  6249] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  6249] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb41c6d3990, parent_tid=0x7fb41c6d3990, exit_signal=0, stack=0x7fb41c6b3000, stack_size=0x20300, tls=0x7fb41c6d36c0} => {parent_tid=[6250]}, 88) = 6250
[pid  6249] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[  112.865392][ T5836] bcachefs (loop2): flushing journal and stopping allocators complete, journal seq 13
[  112.902479][ T5836] bcachefs (loop2): clean shutdown complete, journal seq 14
[pid  6249] futex(0x7fb41c7b66a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  6249] futex(0x7fb41c7b66ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 6250 attached
 <unfinished ...>
[pid  6250] rseq(0x7fb41c6d3fe0, 0x20, 0, 0x53053053) = 0
[pid  6250] set_robust_list(0x7fb41c6d39a0, 24) = 0
[pid  6250] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid  6250] memfd_create("syzkaller", 0) = 3
[pid  6250] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb414200000
[  112.916043][ T5836] bcachefs (loop2): marking filesystem clean
[pid  6237] <... write resumed>)        = 16777216
[pid  6237] munmap(0x7fb414200000, 138412032) = 0
[pid  6239] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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  6237] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4
[pid  6237] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  6237] close(3)                    = 0
[pid  6237] close(4)                    = 0
[pid  6237] mkdir("./file0", 0777)      = 0
[pid  6237] mount("/dev/loop4", "./file0", "bcachefs", MS_RDONLY|MS_SYNCHRONOUS|MS_MANDLOCK|MS_POSIXACL|MS_STRICTATIME, "errors=fix_safe,version_upgrade=none,noexcl,shard_inode_numbers," <unfinished ...>
[pid  5833] <... umount2 resumed>)      = 0
[  112.972228][ T5836] bcachefs (loop2): shutdown complete
[  113.009912][ T6237] loop4: detected capacity change from 0 to 32768
[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, 0x55557569a770 /* 2 entries */, 32768) = 48
[pid  5833] getdents64(4, 0x55557569a770 /* 0 entries */, 32768) = 0
[pid  5833] close(4)                    = 0
[pid  5833] rmdir("./6/file0")          = 0
[pid  5833] umount2("./6/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] newfstatat(AT_FDCWD, "./6/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5833] unlink("./6/binderfs")      = 0
[pid  5833] getdents64(3, 0x555575692730 /* 0 entries */, 32768) = 0
[pid  5833] close(3)                    = 0
[pid  5833] rmdir("./6")                = 0
[pid  5833] mkdir("./7", 0777)          = 0
[pid  5833] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  5833] ioctl(3, LOOP_CLR_FD)       = -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 6252 attached
 <unfinished ...>
[pid  6252] set_robust_list(0x5555756916a0, 24 <unfinished ...>
[pid  5833] <... clone resumed>, child_tidptr=0x555575691690) = 6252
[pid  6252] <... set_robust_list resumed>) = 0
[pid  6252] chdir("./7")                = 0
[pid  6252] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  6252] setpgid(0, 0)               = 0
[pid  6252] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
executing program
[pid  6252] write(3, "1000", 4)         = 4
[pid  6252] close(3)                    = 0
[pid  6252] symlink("/dev/binderfs", "./binderfs") = 0
[pid  6252] write(1, "executing program\n", 18) = 18
[pid  6252] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  6252] rt_sigaction(SIGRT_1, {sa_handler=0x7fb41c745060, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb41c736210}, NULL, 8) = 0
[pid  6252] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  6252] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb41c6b3000
[pid  6252] mprotect(0x7fb41c6b4000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  6252] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  6252] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb41c6d3990, parent_tid=0x7fb41c6d3990, exit_signal=0, stack=0x7fb41c6b3000, stack_size=0x20300, tls=0x7fb41c6d36c0}./strace-static-x86_64: Process 6253 attached
 => {parent_tid=[6253]}, 88) = 6253
[pid  6253] rseq(0x7fb41c6d3fe0, 0x20, 0, 0x53053053) = 0
[pid  6252] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  6253] set_robust_list(0x7fb41c6d39a0, 24) = 0
[pid  6252] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  6253] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid  6252] futex(0x7fb41c7b66a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  6253] memfd_create("syzkaller", 0 <unfinished ...>
[pid  6252] <... futex resumed>)        = 0
[pid  6253] <... memfd_create resumed>) = 3
[pid  6252] futex(0x7fb41c7b66ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[  113.167481][ T6237] bcachefs (loop4): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=none,compression=lz4,nojournal_transaction_names,noexcl,read_only,version_upgrade=none
[pid  6253] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb414200000
[pid  6239] <... write resumed>)        = 16777216
[pid  6239] munmap(0x7fb414200000, 138412032) = 0
[pid  6239] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4
[  113.167510][ T6237]   allowing incompatible features above 0.0: (unknown version)
[  113.167523][ T6237]   features: lz4,new_siphash,inline_data,new_extent_overwrite,btree_ptr_v2,new_varint,journal_no_flush,alloc_v2,extents_across_btree_nodes
[  113.307453][ T6239] loop3: detected capacity change from 0 to 32768
[  113.327725][ T6237] bcachefs (loop4): Using encoding defined by superblock: utf8-12.1.0
[  113.338454][ T6237] bcachefs (loop4): recovering from clean shutdown, journal seq 13
[pid  6239] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid  6250] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...>
[pid  6239] <... ioctl resumed>)        = 0
[pid  6239] close(3)                    = 0
[pid  6239] close(4)                    = 0
[pid  6239] mkdir("./file0", 0777)      = 0
[  113.446238][ T6237] bcachefs (loop4): accounting_read... done
[  113.475159][ T6239] bcachefs (loop3): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=none,compression=lz4,nojournal_transaction_names,noexcl,read_only,version_upgrade=none
[  113.475187][ T6239]   allowing incompatible features above 0.0: (unknown version)
[pid  6239] mount("/dev/loop3", "./file0", "bcachefs", MS_RDONLY|MS_SYNCHRONOUS|MS_MANDLOCK|MS_POSIXACL|MS_STRICTATIME, "errors=fix_safe,version_upgrade=none,noexcl,shard_inode_numbers," <unfinished ...>
[  113.475200][ T6239]   features: lz4,new_siphash,inline_data,new_extent_overwrite,btree_ptr_v2,new_varint,journal_no_flush,alloc_v2,extents_across_btree_nodes
[  113.477142][ T6237] bcachefs (loop4): alloc_read...
[  113.501239][ T6239] bcachefs (loop3): Using encoding defined by superblock: utf8-12.1.0
[  113.529636][ T6239] bcachefs (loop3): recovering from clean shutdown, journal seq 13
[  113.566153][ T6237]  done
[  113.569069][ T6237] bcachefs (loop4): snapshots_read... done
[  113.608284][ T6239] bcachefs (loop3): accounting_read... done
[  113.621924][ T6239] bcachefs (loop3): alloc_read... done
[  113.654948][ T6239] bcachefs (loop3): snapshots_read... done
[  113.667180][ T6237] bcachefs (loop4): journal_replay... done
[  113.675861][ T6237] bcachefs (loop4): resume_logged_ops... done
[  113.677152][ T6239] bcachefs (loop3): journal_replay...
[pid  6253] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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  6237] <... mount resumed>)        = 0
[  113.683090][ T6237] bcachefs (loop4): delete_dead_inodes... done
[  113.715925][ T6239]  done
[  113.720340][ T6239] bcachefs (loop3): resume_logged_ops... done
[  113.740628][ T6237] bcachefs (loop4): done starting filesystem
[  113.745444][ T6239] bcachefs (loop3): delete_dead_inodes... done
[pid  6237] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid  6237] chdir("./file0")            = 0
[pid  6237] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4
[pid  6237] ioctl(4, LOOP_CLR_FD)       = 0
[pid  6237] close(4)                    = 0
[pid  6239] <... mount resumed>)        = 0
[pid  6239] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid  6239] chdir("./file0")            = 0
[pid  6239] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4
[pid  6239] ioctl(4, LOOP_CLR_FD)       = 0
[pid  6239] close(4 <unfinished ...>
[pid  6237] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  6239] <... close resumed>)        = 0
[pid  6239] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  6237] <... futex resumed>)        = 1
[pid  6236] <... futex resumed>)        = 0
[pid  6239] <... futex resumed>)        = 1
[pid  6238] <... futex resumed>)        = 0
[pid  6237] futex(0x7fb41c7b66a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  6236] futex(0x7fb41c7b66a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  6239] futex(0x7fb41c7b66a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  6238] futex(0x7fb41c7b66a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  6237] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  6236] <... futex resumed>)        = 0
[pid  6239] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  6238] <... futex resumed>)        = 0
[pid  6236] futex(0x7fb41c7b66ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  6239] mount(NULL, ".", NULL, MS_NODEV|MS_REMOUNT|MS_MOVE|MS_POSIXACL|MS_LAZYTIME, NULL <unfinished ...>
[pid  6238] futex(0x7fb41c7b66ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[  113.766984][ T6239] bcachefs (loop3): done starting filesystem
[  113.806683][ T6239] bcachefs (loop3): going read-write
[pid  6237] mount(NULL, ".", NULL, MS_NODEV|MS_REMOUNT|MS_MOVE|MS_POSIXACL|MS_LAZYTIME, NULL <unfinished ...>
[pid  6236] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  6238] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[  113.815420][ T6237] bcachefs (loop4): going read-write
[pid  6250] <... write resumed>)        = 16777216
[pid  6250] munmap(0x7fb414200000, 138412032) = 0
[pid  6250] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4
[pid  6250] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  6250] close(3)                    = 0
[pid  6250] close(4)                    = 0
[pid  6250] mkdir("./file0", 0777)      = 0
[  113.958141][ T6250] loop1: detected capacity change from 0 to 32768
[pid  6250] mount("/dev/loop1", "./file0", "bcachefs", MS_RDONLY|MS_SYNCHRONOUS|MS_MANDLOCK|MS_POSIXACL|MS_STRICTATIME, "errors=fix_safe,version_upgrade=none,noexcl,shard_inode_numbers," <unfinished ...>
[pid  5836] <... umount2 resumed>)      = 0
[pid  6239] <... mount resumed>)        = 0
[pid  6239] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  6238] exit_group(0 <unfinished ...>
[pid  6239] <... futex resumed>)        = 231
[pid  6238] <... exit_group resumed>)   = ?
[pid  6239] +++ exited with 0 +++
[pid  5836] umount2("./6/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5836] newfstatat(AT_FDCWD, "./6/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  6253] <... write resumed>)        = 16777216
[pid  6238] +++ exited with 0 +++
[pid  6237] <... mount resumed>)        = 0
[pid  5836] umount2("./6/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  6237] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5837] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6238, si_uid=0, si_status=0, si_utime=9 /* 0.09 s */, si_stime=36 /* 0.36 s */} ---
[pid  5836] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  6237] <... futex resumed>)        = 0
[pid  5836] openat(AT_FDCWD, "./6/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid  6237] futex(0x7fb41c7b66a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  6253] munmap(0x7fb414200000, 138412032 <unfinished ...>
[pid  5836] <... openat resumed>)       = 4
[pid  6236] exit_group(0 <unfinished ...>
[pid  5837] umount2("./6", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  6237] <... futex resumed>)        = ?
[pid  6236] <... exit_group resumed>)   = ?
[pid  5837] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5836] newfstatat(4, "",  <unfinished ...>
[pid  6237] +++ exited with 0 +++
[pid  6236] +++ exited with 0 +++
[pid  5837] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid  5836] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5837] <... openat resumed>)       = 3
[pid  5836] getdents64(4,  <unfinished ...>
[pid  5838] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6236, si_uid=0, si_status=0, si_utime=8 /* 0.08 s */, si_stime=41 /* 0.41 s */} ---
[pid  5837] newfstatat(3, "",  <unfinished ...>
[pid  5838] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  5837] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5836] <... getdents64 resumed>0x55557569a770 /* 2 entries */, 32768) = 48
[pid  5838] <... restart_syscall resumed>) = 0
[pid  5837] getdents64(3,  <unfinished ...>
[pid  5836] getdents64(4,  <unfinished ...>
[pid  5837] <... getdents64 resumed>0x555575692730 /* 4 entries */, 32768) = 112
[pid  5836] <... getdents64 resumed>0x55557569a770 /* 0 entries */, 32768) = 0
[pid  5837] umount2("./6/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5838] umount2("./6", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5836] close(4 <unfinished ...>
[pid  5838] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  5836] <... close resumed>)        = 0
[  114.016161][ T6269] bcachefs (loop3): backpointer doesn't match extent it points to:
[pid  5838] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY <unfinished ...>
[pid  5836] rmdir("./6/file0" <unfinished ...>
[pid  5838] <... openat resumed>)       = 3
[pid  5836] <... rmdir resumed>)        = 0
[pid  5838] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5838] getdents64(3, 0x555575692730 /* 4 entries */, 32768) = 112
[pid  6253] <... munmap resumed>)       = 0
[pid  5838] umount2("./6/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5836] umount2("./6/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  6253] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  5836] <... umount2 resumed>)      = -1 EINVAL (Invalid argument)
[pid  6253] <... openat resumed>)       = 4
[pid  5836] newfstatat(AT_FDCWD, "./6/binderfs",  <unfinished ...>
[pid  6253] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid  5836] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5836] unlink("./6/binderfs")      = 0
[pid  5836] getdents64(3, 0x555575692730 /* 0 entries */, 32768) = 0
[pid  5836] close(3)                    = 0
[pid  5836] rmdir("./6")                = 0
[pid  5836] mkdir("./7", 0777)          = 0
[  114.016182][ T6269]   u64s 9 type backpointer 0:8921088:0 len 0 ver 0: bucket=0:34:8 btree=extents level=0 data_type=user suboffset=0 len=8 gen=0 pos=1073741825:24:U32_MAX
[  114.016201][ T6269]   u64s 8 type extent 1073741825:24:U32_MAX len 24 ver 2: durability: 1 crc: c_size 8 size 24 offset 0 nonce 0 csum chacha20_poly1305_80 5c1d:75853c64f7009f9d  compress lz4 ptr: 0:34:8 gen 0
[  114.016221][ T6269]   u64s 9 type backpointer 0:8921088:0 len 0 ver 0: bucket=0:34:8 btree=extents level=0 data_type=user suboffset=0 len=8 gen=0 pos=1073741825:24:U32_MAX, fixing
[  114.032908][ T6270] bcachefs (loop4): backpointer doesn't match extent it points to:
[  114.032927][ T6270]   u64s 9 type backpointer 0:8921088:0 len 0 ver 0: bucket=0:34:8 btree=extents level=0 data_type=user suboffset=0 len=8 gen=0 pos=1073741825:24:U32_MAX
[pid  5836] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  5836] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  5836] close(3)                    = 0
[pid  6253] <... ioctl resumed>)        = 0
[pid  6253] close(3 <unfinished ...>
[pid  5836] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  6253] <... close resumed>)        = 0
[pid  6253] close(4./strace-static-x86_64: Process 6274 attached
)                    = 0
[pid  6274] set_robust_list(0x5555756916a0, 24 <unfinished ...>
[  114.032946][ T6270]   u64s 8 type extent 1073741825:24:U32_MAX len 24 ver 2: durability: 1 crc: c_size 8 size 24 offset 0 nonce 0 csum chacha20_poly1305_80 5c1d:75853c64f7009f9d  compress lz4 ptr: 0:34:8 gen 0
[  114.032965][ T6270]   u64s 9 type backpointer 0:8921088:0 len 0 ver 0: bucket=0:34:8 btree=extents level=0 data_type=user suboffset=0 len=8 gen=0 pos=1073741825:24:U32_MAX, fixing
[  114.063045][ T6270] bcachefs (loop4): Detected missing backpointers in bucket 34, now have 1/128 with missing
[  114.063065][ T6270]   scheduling recovery pass check_extents_to_backpointers (17)
[pid  6253] mkdir("./file0", 0777 <unfinished ...>
[pid  6274] <... set_robust_list resumed>) = 0
[pid  6253] <... mkdir resumed>)        = 0
[pid  5836] <... clone resumed>, child_tidptr=0x555575691690) = 6274
[pid  6274] chdir("./7" <unfinished ...>
[pid  6253] mount("/dev/loop0", "./file0", "bcachefs", MS_RDONLY|MS_SYNCHRONOUS|MS_MANDLOCK|MS_POSIXACL|MS_STRICTATIME, "errors=fix_safe,version_upgrade=none,noexcl,shard_inode_numbers," <unfinished ...>
[pid  6274] <... chdir resumed>)        = 0
[pid  6274] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  6274] setpgid(0, 0)               = 0
[pid  6274] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  6274] write(3, "1000", 4)         = 4
[pid  6274] close(3)                    = 0
[  114.074987][ T5837] bcachefs (loop3): shutting down
[  114.075004][ T5837] bcachefs (loop3): going read-only
[  114.075029][ T5837] bcachefs (loop3): finished waiting for writes to stop
[  114.121052][ T5838] bcachefs (loop4): shutting down
[  114.121072][ T5838] bcachefs (loop4): going read-only
[  114.121100][ T5838] bcachefs (loop4): finished waiting for writes to stop
[  114.123279][ T6253] loop0: detected capacity change from 0 to 32768
[  114.132990][ T5838] bcachefs (loop4): flushing journal and stopping allocators, journal seq 15
[pid  6274] symlink("/dev/binderfs", "./binderfs") = 0
[  114.290995][ T5837] bcachefs (loop3): flushing journal and stopping allocators, journal seq 13
[  114.300002][ T5837] bcachefs (loop3): flushing journal and stopping allocators complete, journal seq 13
[  114.302775][ T6250] bcachefs (loop1): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=none,compression=lz4,nojournal_transaction_names,noexcl,read_only,version_upgrade=none
[  114.316765][ T5837] bcachefs (loop3): clean shutdown complete, journal seq 14
executing program
[pid  6274] write(1, "executing program\n", 18) = 18
[pid  6274] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  6274] rt_sigaction(SIGRT_1, {sa_handler=0x7fb41c745060, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb41c736210}, NULL, 8) = 0
[pid  6274] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  6274] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb41c6b3000
[pid  6274] mprotect(0x7fb41c6b4000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  6274] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  6274] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb41c6d3990, parent_tid=0x7fb41c6d3990, exit_signal=0, stack=0x7fb41c6b3000, stack_size=0x20300, tls=0x7fb41c6d36c0} => {parent_tid=[6276]}, 88) = 6276
[pid  6274] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid  6274] futex(0x7fb41c7b66a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  6274] futex(0x7fb41c7b66ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 6276 attached
 <unfinished ...>
[pid  6276] rseq(0x7fb41c6d3fe0, 0x20, 0, 0x53053053) = 0
[pid  6276] set_robust_list(0x7fb41c6d39a0, 24) = 0
[pid  6276] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[  114.338877][ T5838] bcachefs (loop4): flushing journal and stopping allocators complete, journal seq 15
[  114.356425][ T5837] bcachefs (loop3): marking filesystem clean
[  114.377184][ T6250]   allowing incompatible features above 0.0: (unknown version)
[  114.385750][ T5838] bcachefs (loop4): clean shutdown complete, journal seq 16
[pid  6276] memfd_create("syzkaller", 0) = 3
[pid  6276] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb414200000
[  114.391584][ T6253] bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=none,compression=lz4,nojournal_transaction_names,noexcl,read_only,version_upgrade=none
[  114.412723][ T5838] bcachefs (loop4): marking filesystem clean
[  114.413784][ T6250]   features: lz4,new_siphash,inline_data,new_extent_overwrite,btree_ptr_v2,new_varint,journal_no_flush,alloc_v2,extents_across_btree_nodes
[  114.433865][ T6253]   allowing incompatible features above 0.0: (unknown version)
[  114.464870][ T6250] bcachefs (loop1): Using encoding defined by superblock: utf8-12.1.0
[  114.473521][ T6250] bcachefs (loop1): recovering from clean shutdown, journal seq 13
[  114.491542][ T5837] bcachefs (loop3): shutdown complete
[  114.499165][ T6253]   features: lz4,new_siphash,inline_data,new_extent_overwrite,btree_ptr_v2,new_varint,journal_no_flush,alloc_v2,extents_across_btree_nodes
[  114.501949][ T5838] bcachefs (loop4): shutdown complete
[  114.585351][ T6253] bcachefs (loop0): Using encoding defined by superblock: utf8-12.1.0
[  114.614942][ T6253] bcachefs (loop0): recovering from clean shutdown, journal seq 13
[  114.659155][ T6250] bcachefs (loop1): accounting_read... done
[  114.676814][ T6250] bcachefs (loop1): alloc_read... done
[  114.694185][ T6250] bcachefs (loop1): snapshots_read... done
[  114.722688][ T6253] bcachefs (loop0): accounting_read... done
[  114.731603][ T6250] bcachefs (loop1): journal_replay... done
[  114.743721][ T6253] bcachefs (loop0): alloc_read... done
[  114.750685][ T6253] bcachefs (loop0): snapshots_read... done
[  114.768944][ T6250] bcachefs (loop1): resume_logged_ops... done
[  114.792279][ T6250] bcachefs (loop1): delete_dead_inodes... done
[  114.813549][ T6253] bcachefs (loop0): journal_replay... done
[pid  6276] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 <unfinished ...>
[pid  6250] <... mount resumed>)        = 0
[pid  6250] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid  6250] chdir("./file0")            = 0
[pid  6250] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4
[pid  6250] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid  6253] <... mount resumed>)        = 0
[pid  6250] <... ioctl resumed>)        = 0
[pid  6253] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid  6250] close(4 <unfinished ...>
[pid  6253] <... openat resumed>)       = 3
[pid  6250] <... close resumed>)        = 0
[pid  6250] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  6249] <... futex resumed>)        = 0
[pid  6253] chdir("./file0" <unfinished ...>
[pid  6250] futex(0x7fb41c7b66a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  6249] futex(0x7fb41c7b66a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  6253] <... chdir resumed>)        = 0
[pid  6250] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  6249] <... futex resumed>)        = 0
[pid  6253] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[  114.822099][ T6250] bcachefs (loop1): done starting filesystem
[  114.832895][ T6253] bcachefs (loop0): resume_logged_ops... done
[  114.840114][ T6253] bcachefs (loop0): delete_dead_inodes... done
[  114.854808][ T6253] bcachefs (loop0): done starting filesystem
[pid  6250] mount(NULL, ".", NULL, MS_NODEV|MS_REMOUNT|MS_MOVE|MS_POSIXACL|MS_LAZYTIME, NULL <unfinished ...>
[pid  6249] futex(0x7fb41c7b66ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  6253] <... openat resumed>)       = 4
[pid  6253] ioctl(4, LOOP_CLR_FD)       = 0
[pid  6253] close(4)                    = 0
[pid  6253] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  6252] <... futex resumed>)        = 0
[pid  6253] mount(NULL, ".", NULL, MS_NODEV|MS_REMOUNT|MS_MOVE|MS_POSIXACL|MS_LAZYTIME, NULL <unfinished ...>
[pid  6252] futex(0x7fb41c7b66a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  6252] futex(0x7fb41c7b66ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  6249] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[  114.871273][ T6250] bcachefs (loop1): going read-write
[  114.880911][ T6253] bcachefs (loop0): going read-write
[pid  6252] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  6250] <... mount resumed>)        = 0
[pid  6250] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  6250] futex(0x7fb41c7b66a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  6249] exit_group(0)               = ?
[pid  6250] <... futex resumed>)        = ?
[pid  6250] +++ exited with 0 +++
[pid  6249] +++ exited with 0 +++
[pid  5835] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6249, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=41 /* 0.41 s */} ---
[pid  5835] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  5835] umount2("./7", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5835] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid  5835] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5835] getdents64(3, 0x555575692730 /* 4 entries */, 32768) = 112
[  114.974162][ T6289] bcachefs (loop1): backpointer doesn't match extent it points to:
[pid  5835] umount2("./7/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  6276] <... write resumed>)        = 16777216
[pid  6276] munmap(0x7fb414200000, 138412032) = 0
[  114.974184][ T6289]   u64s 9 type backpointer 0:8921088:0 len 0 ver 0: bucket=0:34:8 btree=extents level=0 data_type=user suboffset=0 len=8 gen=0 pos=1073741825:24:U32_MAX
[pid  6276] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4
[pid  6253] <... mount resumed>)        = 0
[pid  6276] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  6253] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  6252] exit_group(0)               = ?
[pid  6276] close(3)                    = 0
[pid  6276] close(4 <unfinished ...>
[pid  6253] <... futex resumed>)        = ?
[pid  6276] <... close resumed>)        = 0
[pid  6276] mkdir("./file0", 0777)      = 0
[pid  6253] +++ exited with 0 +++
[pid  6252] +++ exited with 0 +++
[pid  6276] mount("/dev/loop2", "./file0", "bcachefs", MS_RDONLY|MS_SYNCHRONOUS|MS_MANDLOCK|MS_POSIXACL|MS_STRICTATIME, "errors=fix_safe,version_upgrade=none,noexcl,shard_inode_numbers," <unfinished ...>
[pid  5833] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6252, si_uid=0, si_status=0, si_utime=10 /* 0.10 s */, si_stime=36 /* 0.36 s */} ---
[pid  5833] restart_syscall(<... resuming interrupted clone ...>) = 0
[  114.974202][ T6289]   u64s 8 type extent 1073741825:24:U32_MAX len 24 ver 2: durability: 1 crc: c_size 8 size 24 offset 0 nonce 0 csum chacha20_poly1305_80 5c1d:75853c64f7009f9d  compress lz4 ptr: 0:34:8 gen 0
[pid  5833] umount2("./7", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5833] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid  5833] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5833] getdents64(3, 0x555575692730 /* 4 entries */, 32768) = 112
[pid  5833] umount2("./7/file0", MNT_FORCE|UMOUNT_NOFOLLOW <unfinished ...>
[pid  5837] <... umount2 resumed>)      = 0
[pid  5837] umount2("./6/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[  114.974222][ T6289]   u64s 9 type backpointer 0:8921088:0 len 0 ver 0: bucket=0:34:8 btree=extents level=0 data_type=user suboffset=0 len=8 gen=0 pos=1073741825:24:U32_MAX, fixing
[  115.078480][ T5835] bcachefs (loop1): shutting down
[  115.078499][ T5835] bcachefs (loop1): going read-only
[  115.078524][ T5835] bcachefs (loop1): finished waiting for writes to stop
[  115.101821][ T6276] loop2: detected capacity change from 0 to 32768
[  115.107714][ T6293] bcachefs (loop0): backpointer doesn't match extent it points to:
[  115.107733][ T6293]   u64s 9 type backpointer 0:8921088:0 len 0 ver 0: bucket=0:34:8 btree=extents level=0 data_type=user suboffset=0 len=8 gen=0 pos=1073741825:24:U32_MAX
[  115.107752][ T6293]   u64s 8 type extent 1073741825:24:U32_MAX len 24 ver 2: durability: 1 crc: c_size 8 size 24 offset 0 nonce 0 csum chacha20_poly1305_80 5c1d:75853c64f7009f9d  compress lz4 ptr: 0:34:8 gen 0
[  115.107772][ T6293]   u64s 9 type backpointer 0:8921088:0 len 0 ver 0: bucket=0:34:8 btree=extents level=0 data_type=user suboffset=0 len=8 gen=0 pos=1073741825:24:U32_MAX, fixing
[  115.135968][ T6293] bcachefs (loop0): Detected missing backpointers in bucket 34, now have 1/128 with missing
[  115.135990][ T6293]   scheduling recovery pass check_extents_to_backpointers (17)
[  115.211007][ T5833] bcachefs (loop0): shutting down
[  115.211025][ T5833] bcachefs (loop0): going read-only
[  115.211050][ T5833] bcachefs (loop0): finished waiting for writes to stop
[  115.226908][ T5833] bcachefs (loop0): flushing journal and stopping allocators, journal seq 15
[pid  5837] newfstatat(AT_FDCWD, "./6/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5837] umount2("./6/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5837] openat(AT_FDCWD, "./6/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid  5837] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5837] getdents64(4, 0x55557569a770 /* 2 entries */, 32768) = 48
[pid  5837] getdents64(4, 0x55557569a770 /* 0 entries */, 32768) = 0
[pid  5837] close(4)                    = 0
[pid  5837] rmdir("./6/file0")          = 0
[pid  5837] umount2("./6/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5837] newfstatat(AT_FDCWD, "./6/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5837] unlink("./6/binderfs")      = 0
[pid  5837] getdents64(3, 0x555575692730 /* 0 entries */, 32768) = 0
[pid  5837] close(3)                    = 0
[pid  5837] rmdir("./6")                = 0
[pid  5837] mkdir("./7", 0777)          = 0
[pid  5837] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  5837] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  5837] close(3)                    = 0
[  115.276983][ T6276] bcachefs (loop2): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=none,compression=lz4,nojournal_transaction_names,noexcl,read_only,version_upgrade=none
[  115.297415][ T5835] bcachefs (loop1): flushing journal and stopping allocators, journal seq 13
[  115.297442][ T6276]   allowing incompatible features above 0.0: (unknown version)
[  115.385007][ T5835] bcachefs (loop1): flushing journal and stopping allocators complete, journal seq 13
[pid  5837] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6296 attached
 <unfinished ...>
[pid  6296] set_robust_list(0x5555756916a0, 24 <unfinished ...>
[pid  5837] <... clone resumed>, child_tidptr=0x555575691690) = 6296
[pid  6296] <... set_robust_list resumed>) = 0
[pid  6296] chdir("./7")                = 0
[pid  6296] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  6296] setpgid(0, 0)               = 0
[pid  6296] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  6296] write(3, "1000", 4)         = 4
[pid  6296] close(3)                    = 0
[pid  6296] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid  6296] write(1, "executing program\n", 18) = 18
[pid  6296] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  6296] rt_sigaction(SIGRT_1, {sa_handler=0x7fb41c745060, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb41c736210}, NULL, 8) = 0
[pid  6296] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  6296] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb41c6b3000
[pid  6296] mprotect(0x7fb41c6b4000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  6296] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  6296] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb41c6d3990, parent_tid=0x7fb41c6d3990, exit_signal=0, stack=0x7fb41c6b3000, stack_size=0x20300, tls=0x7fb41c6d36c0} => {parent_tid=[6297]}, 88) = 6297
[pid  6296] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid  6296] futex(0x7fb41c7b66a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[  115.401123][ T6276]   features: lz4,new_siphash,inline_data,new_extent_overwrite,btree_ptr_v2,new_varint,journal_no_flush,alloc_v2,extents_across_btree_nodes
[  115.429444][ T5835] bcachefs (loop1): clean shutdown complete, journal seq 14
[  115.435625][ T6276] bcachefs (loop2): Using encoding defined by superblock: utf8-12.1.0
[pid  6296] futex(0x7fb41c7b66ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 6297 attached
 <unfinished ...>
[pid  6297] rseq(0x7fb41c6d3fe0, 0x20, 0, 0x53053053) = 0
[pid  6297] set_robust_list(0x7fb41c6d39a0, 24) = 0
[pid  6297] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid  6297] memfd_create("syzkaller", 0) = 3
[pid  6297] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb414200000
[  115.446284][ T6276] bcachefs (loop2): recovering from clean shutdown, journal seq 13
[  115.477061][ T5835] bcachefs (loop1): marking filesystem clean
[  115.477901][ T6276] bcachefs (loop2): accounting_read...
[  115.484302][ T5833] bcachefs (loop0): flushing journal and stopping allocators complete, journal seq 15
[  115.500716][ T5833] bcachefs (loop0): clean shutdown complete, journal seq 16
[  115.508888][ T5833] bcachefs (loop0): marking filesystem clean
[  115.519708][ T6276]  done
[  115.522546][ T6276] bcachefs (loop2): alloc_read... done
[  115.555035][ T6276] bcachefs (loop2): snapshots_read... done
[  115.640262][ T5833] bcachefs (loop0): shutdown complete
[  115.642288][ T5835] bcachefs (loop1): shutdown complete
[  115.656165][ T6276] bcachefs (loop2): journal_replay... done
[pid  6276] <... mount resumed>)        = 0
[pid  6276] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid  6276] chdir("./file0")            = 0
[pid  6276] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4
[pid  6276] ioctl(4, LOOP_CLR_FD)       = 0
[pid  6276] close(4)                    = 0
[  115.706666][ T6276] bcachefs (loop2): resume_logged_ops... done
[  115.713824][ T6276] bcachefs (loop2): delete_dead_inodes... done
[  115.723600][ T6276] bcachefs (loop2): done starting filesystem
[pid  6276] futex(0x7fb41c7b66ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  6276] futex(0x7fb41c7b66a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  6274] <... futex resumed>)        = 0
[pid  6274] futex(0x7fb41c7b66a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  6276] <... futex resumed>)        = 0
[pid  6274] <... futex resumed>)        = 1
[pid  6276] mount(NULL, ".", NULL, MS_NODEV|MS_REMOUNT|MS_MOVE|MS_POSIXACL|MS_LAZYTIME, NULL <unfinished ...>
[pid  6274] futex(0x7fb41c7b66ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[  115.758254][ T6276] bcachefs (loop2): going read-write
[pid  6297] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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  6274] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  5838] <... umount2 resumed>)      = 0
[pid  5838] umount2("./6/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5838] newfstatat(AT_FDCWD, "./6/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5838] umount2("./6/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5838] openat(AT_FDCWD, "./6/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid  5838] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid  5838] getdents64(4, 0x55557569a770 /* 2 entries */, 32768) = 48
[pid  5838] getdents64(4, 0x55557569a770 /* 0 entries */, 32768) = 0
[pid  5838] close(4)                    = 0
[pid  5838] rmdir("./6/file0")          = 0
[pid  6274] exit_group(0)               = ?
[pid  5838] umount2("./6/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid  5838] newfstatat(AT_FDCWD, "./6/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid  5838] unlink("./6/binderfs")      = 0
[pid  5838] getdents64(3, 0x555575692730 /* 0 entries */, 32768) = 0
[pid  5838] close(3)                    = 0
[  115.960149][ T6276] workqueue: Failed to create a rescuer kthread for wq "bcachefs_journal": -EINTR
[  115.972539][ T6276] bcachefs (loop2): flushing journal and stopping allocators, journal seq 13
[pid  5838] rmdir("./6")                = 0
[  116.016370][ T6276] bcachefs (loop2): flushing journal and stopping allocators complete, journal seq 13
[  116.037321][ T6276] ------------[ cut here ]------------
[  116.042962][ T6276] kernel BUG at fs/bcachefs/journal.c:397!
[  116.048921][ T6276] Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
[  116.055286][ T6276] CPU: 1 UID: 0 PID: 6276 Comm: syz-executor206 Not tainted 6.16.0-rc1-syzkaller-00203-g4774cfe3543a #0 PREEMPT(full) 
[  116.067694][ T6276] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[  116.077759][ T6276] RIP: 0010:__journal_res_get+0x25cd/0x27f0
[  116.083674][ T6276] Code: ff ff e9 2b db ff ff e8 01 7c 7e fd 41 be eb f6 ff ff e9 1b db ff ff e8 11 58 1d 07 e8 ec 7b 7e fd 90 0f 0b e8 e4 7b 7e fd 90 <0f> 0b e8 dc 7b 7e fd 90 0f 0b e8 d4 7b 7e fd 90 0f 0b e8 cc 7b 7e
[  116.103284][ T6276] RSP: 0018:ffffc900038874c0 EFLAGS: 00010293
[  116.109355][ T6276] RAX: ffffffff8441cf5c RBX: 1ffff1100bf4951b RCX: ffff888027951e00
[  116.117343][ T6276] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000
[  116.125322][ T6276] RBP: ffffc90003887790 R08: ffff88805fa4a9f7 R09: 1ffff1100bf4953e
[  116.133301][ T6276] R10: dffffc0000000000 R11: ffffed100bf4953f R12: ffff88805fa49800
[  116.141274][ T6276] R13: 1ffff1100bf4953e R14: 0000000000000002 R15: 00000000007ffffe
[  116.149267][ T6276] FS:  00007fb41c6d36c0(0000) GS:ffff888125d86000(0000) knlGS:0000000000000000
[  116.158203][ T6276] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  116.164783][ T6276] CR2: 00007fb41c772758 CR3: 000000001bacc000 CR4: 00000000003526f0
[  116.172757][ T6276] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  116.180727][ T6276] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  116.188705][ T6276] Call Trace:
[  116.191999][ T6276]  <TASK>
[  116.194936][ T6276]  ? lockdep_hardirqs_on+0x9c/0x150
[  116.200157][ T6276]  ? rcu_is_watching+0x15/0xb0
[  116.204943][ T6276]  ? __pfx___journal_res_get+0x10/0x10
[  116.210412][ T6276]  ? __journal_entry_close+0x1cc/0xeb0
[  116.215878][ T6276]  ? journal_flush_done+0x675/0x810
[  116.221092][ T6276]  bch2_journal_res_get_slowpath+0xdc/0xaf0
[  116.227010][ T6276]  ? __pfx_bch2_journal_res_get_slowpath+0x10/0x10
[  116.233522][ T6276]  ? do_raw_spin_lock+0x121/0x290
[  116.238562][ T6276]  ? __journal_entry_close+0x1cc/0xeb0
[  116.244035][ T6276]  ? journal_res_get_fast+0x12e/0x6a0
[  116.249612][ T6276]  ? __lock_acquire+0xab9/0xd20
[  116.254472][ T6276]  ? __pfx_journal_res_get_fast+0x10/0x10
[  116.260208][ T6276]  bch2_journal_res_get+0x14f/0x1f0
[  116.265421][ T6276]  __bch2_journal_meta+0x40/0x1d0
[  116.270460][ T6276]  bch2_fs_journal_stop+0x1dd/0x440
[  116.275690][ T6276]  ? __pfx_bch2_fs_journal_stop+0x10/0x10
[  116.281443][ T6276]  ? __pfx___bch2_print+0x10/0x10
[  116.286475][ T6276]  ? __bch2_btree_flush_all+0x54/0x6f0
[  116.291941][ T6276]  ? __bch2_btree_flush_all+0x6ce/0x6f0
[  116.297501][ T6276]  ? __bch2_btree_flush_all+0x54/0x6f0
[  116.303604][ T6276]  __bch2_fs_read_only+0x343/0x5b0
[  116.309386][ T6276]  __bch2_fs_read_write+0x5cd/0x830
[  116.314789][ T6276]  ? __pfx_shrink_dcache_sb+0x10/0x10
[  116.320787][ T6276]  bch2_fs_reconfigure+0x29a/0x400
[  116.326009][ T6276]  reconfigure_super+0x224/0x890
[  116.330962][ T6276]  path_mount+0xd18/0xfe0
[  116.335311][ T6276]  ? user_path_at+0x44/0x60
[  116.339843][ T6276]  __se_sys_mount+0x317/0x410
[  116.344534][ T6276]  ? __pfx___se_sys_mount+0x10/0x10
[  116.349741][ T6276]  ? rcu_is_watching+0x15/0xb0
[  116.354519][ T6276]  ? __x64_sys_mount+0x20/0xc0
[  116.359294][ T6276]  do_syscall_64+0xfa/0x3b0
[  116.363815][ T6276]  ? lockdep_hardirqs_on+0x9c/0x150
[  116.369040][ T6276]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  116.375112][ T6276]  ? clear_bhb_loop+0x60/0xb0
[  116.379786][ T6276]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  116.385687][ T6276] RIP: 0033:0x7fb41c71ec49
[  116.390127][ T6276] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
[  116.409736][ T6276] RSP: 002b:00007fb41c6d3218 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  116.418163][ T6276] RAX: ffffffffffffffda RBX: 00007fb41c7b66a8 RCX: 00007fb41c71ec49
[  116.426143][ T6276] RDX: 0000000000000000 RSI: 0000200000000000 RDI: 0000000000000000
[  116.434144][ T6276] RBP: 00007fb41c7b66a0 R08: 0000000000000000 R09: 0000000000000000
[  116.442123][ T6276] R10: 0000000002012024 R11: 0000000000000246 R12: 0000200000000000
[  116.450104][ T6276] R13: 0030656c69662f2e R14: 7366656863616362 R15: 0000200000000080
[  116.458090][ T6276]  </TASK>
[  116.461126][ T6276] Modules linked in:
[  116.465134][ T6276] ---[ end trace 0000000000000000 ]---
[  116.470625][ T6276] RIP: 0010:__journal_res_get+0x25cd/0x27f0
[  116.476585][ T6276] Code: ff ff e9 2b db ff ff e8 01 7c 7e fd 41 be eb f6 ff ff e9 1b db ff ff e8 11 58 1d 07 e8 ec 7b 7e fd 90 0f 0b e8 e4 7b 7e fd 90 <0f> 0b e8 dc 7b 7e fd 90 0f 0b e8 d4 7b 7e fd 90 0f 0b e8 cc 7b 7e
[  116.496283][ T6276] RSP: 0018:ffffc900038874c0 EFLAGS: 00010293
[  116.502374][ T6276] RAX: ffffffff8441cf5c RBX: 1ffff1100bf4951b RCX: ffff888027951e00
[  116.510394][ T6276] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000
[  116.518423][ T6276] RBP: ffffc90003887790 R08: ffff88805fa4a9f7 R09: 1ffff1100bf4953e
[  116.526468][ T6276] R10: dffffc0000000000 R11: ffffed100bf4953f R12: ffff88805fa49800
[  116.534462][ T6276] R13: 1ffff1100bf4953e R14: 0000000000000002 R15: 00000000007ffffe
[  116.542567][ T6276] FS:  00007fb41c6d36c0(0000) GS:ffff888125d86000(0000) knlGS:0000000000000000
[  116.551630][ T6276] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  116.558275][ T6276] CR2: 00007fb41c772758 CR3: 000000001bacc000 CR4: 00000000003526f0
[  116.566761][ T6276] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  116.574794][ T6276] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  116.582793][ T6276] Kernel panic - not syncing: Fatal exception
[  116.589201][ T6276] Kernel Offset: disabled
[  116.593534][ T6276] Rebooting in 86400 seconds..