./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor4061711630 <...> Warning: Permanently added '10.128.1.166' (ED25519) to the list of known hosts. execve("./syz-executor4061711630", ["./syz-executor4061711630"], 0x7fffab7f8e50 /* 10 vars */) = 0 brk(NULL) = 0x55556cc1a000 brk(0x55556cc1ad00) = 0x55556cc1ad00 arch_prctl(ARCH_SET_FS, 0x55556cc1a380) = 0 set_tid_address(0x55556cc1a650) = 5827 set_robust_list(0x55556cc1a660, 24) = 0 rseq(0x55556cc1aca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor4061711630", 4096) = 28 getrandom("\x40\x1e\x71\x15\x01\x79\xac\x71", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55556cc1ad00 brk(0x55556cc3bd00) = 0x55556cc3bd00 brk(0x55556cc3c000) = 0x55556cc3c000 mprotect(0x7f16a97d1000, 16384, PROT_READ) = 0 mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000 mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000 mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000 mkdir("./syzkaller.gx5lUI", 0700) = 0 chmod("./syzkaller.gx5lUI", 0777) = 0 chdir("./syzkaller.gx5lUI") = 0 mkdir("./0", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5829 attached , child_tidptr=0x55556cc1a650) = 5829 [pid 5829] set_robust_list(0x55556cc1a660, 24) = 0 [pid 5829] chdir("./0") = 0 [pid 5829] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5829] setpgid(0, 0) = 0 [pid 5829] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5829] write(3, "1000", 4) = 4 [pid 5829] close(3) = 0 [pid 5829] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 5829] write(1, "executing program\n", 18) = 18 [pid 5829] memfd_create("syzkaller", 0) = 3 [pid 5829] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f16a1200000 [pid 5829] 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 5829] munmap(0x7f16a1200000, 138412032) = 0 [pid 5829] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5829] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5829] close(3) = 0 [pid 5829] close(4) = 0 [pid 5829] mkdir("./file0", 0777) = 0 [ 63.364774][ T5829] loop0: detected capacity change from 0 to 32768 [ 63.420722][ T5829] bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=none,compression=lz4,erasure_code,degraded,no_splitbrain_check,fsck,norecovery,nojournal_transaction_names,reconstruct_alloc,nocow [ 63.443468][ T5829] bcachefs (loop0): recovering from clean shutdown, journal seq 10 [ 63.451764][ T5829] bcachefs (loop0): Version upgrade required: [ 63.451764][ T5829] Version upgrade from 0.24: unwritten_extents to 1.7: mi_btree_bitmap incomplete [ 63.451764][ T5829] Doing incompatible version upgrade from 0.24: unwritten_extents to 1.13: inode_has_child_snapshots [ 63.451764][ T5829] running recovery passes: check_allocations,check_alloc_info,check_lrus,check_btree_backpointers,check_backpointers_to_extents,check_extents_to_backpointers,check_alloc_to_lru_refs,bucket_gens_init,check_snapshot_trees,check_snapshots,check_subvols,check_subvol_children,delete_dead_snapshots,check_inodes,check_extents,check_indirect_extents,check_dirents,check_xattrs,check_root,check_unreachable_inodes,check_subvolume_structure,check_directory_structure,check_nlinks,set_fs_needs_rebalance [ 63.524954][ T5829] bcachefs (loop0): dropping and reconstructing all alloc info [ 63.541633][ T5829] bcachefs (loop0): check_topology... done [ 63.547504][ T5829] bcachefs (loop0): accounting_read... done [ 63.554377][ T5829] bcachefs (loop0): alloc_read... done [ 63.559914][ T5829] bcachefs (loop0): stripes_read... done [pid 5829] mount("/dev/loop0", "./file0", "bcachefs", MS_POSIXACL, "fsck,inline_data,nocow,degraded,str_hash=siphash,norecovery,discard,reconstruct_alloc,erasure_code,a"...) = 0 [pid 5829] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5829] chdir("./file0") = 0 [pid 5829] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5829] ioctl(4, LOOP_CLR_FD) = 0 [ 63.565799][ T5829] bcachefs (loop0): snapshots_read... done [ 63.571993][ T5829] bcachefs (loop0): check_allocations... done [ 63.592028][ T5829] bcachefs (loop0): going read-write [ 63.603861][ T5829] bcachefs (loop0): done starting filesystem [pid 5829] close(4) = 0 [pid 5829] creat("./file1", 050) = 4 [pid 5829] exit_group(0) = ? [pid 5829] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5829, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=23 /* 0.23 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [ 63.688557][ T5829] syz-executor406 (5829) used greatest stack depth: 15216 bytes left newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55556cc1b6f0 /* 4 entries */, 32768) = 112 umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./0/binderfs") = 0 [ 63.821351][ T5827] bcachefs (loop0): shutting down [ 63.826506][ T5827] bcachefs (loop0): going read-only [ 63.831983][ T5827] bcachefs (loop0): finished waiting for writes to stop [ 63.841039][ T5827] bcachefs (loop0): flushing journal and stopping allocators, journal seq 11 [ 63.853795][ T35] bcachefs (loop0): bch2_write_super(): fatal error loop0: Superblock write was silently dropped! (seq 0 expected 54) [ 63.867077][ T35] bcachefs (loop0): fatal error - emergency read only [ 63.874982][ T5827] bcachefs (loop0): flushing journal and stopping allocators complete, journal seq 11 [ 63.884923][ T5827] bcachefs (loop0): unshutdown complete, journal seq 11 [ 63.892774][ T5827] bcachefs (loop0): done going read-only, filesystem not clean [ 63.911140][ T5827] bcachefs (loop0): shutdown complete umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./0/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(4, 0x55556cc23730 /* 2 entries */, 32768) = 48 getdents64(4, 0x55556cc23730 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./0/file0") = 0 getdents64(3, 0x55556cc1b6f0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./0") = 0 mkdir("./1", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5840 attached , child_tidptr=0x55556cc1a650) = 5840 [pid 5840] set_robust_list(0x55556cc1a660, 24) = 0 [pid 5840] chdir("./1") = 0 [pid 5840] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5840] setpgid(0, 0) = 0 [pid 5840] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5840] write(3, "1000", 4) = 4 [pid 5840] close(3) = 0 [pid 5840] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5840] write(1, "executing program\n", 18executing program ) = 18 [pid 5840] memfd_create("syzkaller", 0) = 3 [pid 5840] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f16a1200000 [pid 5840] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5840] munmap(0x7f16a1200000, 138412032) = 0 [pid 5840] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5840] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5840] close(3) = 0 [pid 5840] close(4) = 0 [pid 5840] mkdir("./file0", 0777) = 0 [ 65.149112][ T5840] loop0: detected capacity change from 0 to 32768 [ 65.231978][ T5840] bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=none,compression=lz4,erasure_code,degraded,no_splitbrain_check,fsck,norecovery,nojournal_transaction_names,reconstruct_alloc,nocow [ 65.254348][ T5840] bcachefs (loop0): recovering from clean shutdown, journal seq 10 [ 65.263153][ T5840] bcachefs (loop0): Version upgrade required: [ 65.263153][ T5840] Version upgrade from 0.24: unwritten_extents to 1.7: mi_btree_bitmap incomplete [ 65.263153][ T5840] Doing incompatible version upgrade from 0.24: unwritten_extents to 1.13: inode_has_child_snapshots [ 65.263153][ T5840] running recovery passes: check_allocations,check_alloc_info,check_lrus,check_btree_backpointers,check_backpointers_to_extents,check_extents_to_backpointers,check_alloc_to_lru_refs,bucket_gens_init,check_snapshot_trees,check_snapshots,check_subvols,check_subvol_children,delete_dead_snapshots,check_inodes,check_extents,check_indirect_extents,check_dirents,check_xattrs,check_root,check_unreachable_inodes,check_subvolume_structure,check_directory_structure,check_nlinks,set_fs_needs_rebalance [ 65.335978][ T5840] bcachefs (loop0): dropping and reconstructing all alloc info [ 65.350503][ T5840] bcachefs (loop0): check_topology... done [ 65.356406][ T5840] bcachefs (loop0): accounting_read... done [ 65.362998][ T5840] bcachefs (loop0): alloc_read... done [ 65.368520][ T5840] bcachefs (loop0): stripes_read... done [ 65.374404][ T5840] bcachefs (loop0): snapshots_read... done [pid 5840] mount("/dev/loop0", "./file0", "bcachefs", MS_POSIXACL, "fsck,inline_data,nocow,degraded,str_hash=siphash,norecovery,discard,reconstruct_alloc,erasure_code,a"...) = 0 [pid 5840] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5840] chdir("./file0") = 0 [pid 5840] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [ 65.380427][ T5840] bcachefs (loop0): check_allocations... done [ 65.397029][ T5840] bcachefs (loop0): going read-write [ 65.406312][ T5840] bcachefs (loop0): done starting filesystem [pid 5840] ioctl(4, LOOP_CLR_FD) = 0 [pid 5840] close(4) = 0 [pid 5840] creat("./file1", 050) = 4 [pid 5840] exit_group(0) = ? [pid 5840] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5840, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=24 /* 0.24 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55556cc1b6f0 /* 4 entries */, 32768) = 112 umount2("./1/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./1/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./1/binderfs") = 0 [ 65.582339][ T5827] bcachefs (loop0): shutting down [ 65.587406][ T5827] bcachefs (loop0): going read-only [ 65.592848][ T5827] bcachefs (loop0): finished waiting for writes to stop [ 65.600809][ T5827] bcachefs (loop0): flushing journal and stopping allocators, journal seq 12 [ 65.612059][ T3461] bcachefs (loop0): bch2_write_super(): fatal error loop0: Superblock write was silently dropped! (seq 0 expected 54) [ 65.624966][ T3461] bcachefs (loop0): fatal error - emergency read only [ 65.632771][ T5827] bcachefs (loop0): flushing journal and stopping allocators complete, journal seq 12 [ 65.642682][ T5827] bcachefs (loop0): unshutdown complete, journal seq 12 [ 65.650349][ T5827] bcachefs (loop0): done going read-only, filesystem not clean [ 65.666851][ T5827] bcachefs (loop0): shutdown complete umount2("./1/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./1/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./1/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./1/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(4, 0x55556cc23730 /* 2 entries */, 32768) = 48 getdents64(4, 0x55556cc23730 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1/file0") = 0 getdents64(3, 0x55556cc1b6f0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1") = 0 mkdir("./2", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5851 attached [pid 5851] set_robust_list(0x55556cc1a660, 24) = 0 [pid 5827] <... clone resumed>, child_tidptr=0x55556cc1a650) = 5851 [pid 5851] chdir("./2") = 0 [pid 5851] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5851] setpgid(0, 0) = 0 [pid 5851] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5851] write(3, "1000", 4) = 4 [pid 5851] close(3) = 0 [pid 5851] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5851] write(1, "executing program\n", 18) = 18 [pid 5851] memfd_create("syzkaller", 0) = 3 [pid 5851] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f16a1200000 [pid 5851] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5851] munmap(0x7f16a1200000, 138412032) = 0 [pid 5851] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5851] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5851] close(3) = 0 [pid 5851] close(4) = 0 [pid 5851] mkdir("./file0", 0777) = 0 [ 66.880776][ T5851] loop0: detected capacity change from 0 to 32768 [ 66.949521][ T5851] bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=none,compression=lz4,erasure_code,degraded,no_splitbrain_check,fsck,norecovery,nojournal_transaction_names,reconstruct_alloc,nocow [ 66.973054][ T5851] bcachefs (loop0): recovering from clean shutdown, journal seq 10 [ 66.981510][ T5851] bcachefs (loop0): Version upgrade required: [ 66.981510][ T5851] Version upgrade from 0.24: unwritten_extents to 1.7: mi_btree_bitmap incomplete [ 66.981510][ T5851] Doing incompatible version upgrade from 0.24: unwritten_extents to 1.13: inode_has_child_snapshots [ 66.981510][ T5851] running recovery passes: check_allocations,check_alloc_info,check_lrus,check_btree_backpointers,check_backpointers_to_extents,check_extents_to_backpointers,check_alloc_to_lru_refs,bucket_gens_init,check_snapshot_trees,check_snapshots,check_subvols,check_subvol_children,delete_dead_snapshots,check_inodes,check_extents,check_indirect_extents,check_dirents,check_xattrs,check_root,check_unreachable_inodes,check_subvolume_structure,check_directory_structure,check_nlinks,set_fs_needs_rebalance [ 67.053936][ T5851] bcachefs (loop0): dropping and reconstructing all alloc info [ 67.069647][ T5851] bcachefs (loop0): check_topology... done [ 67.075609][ T5851] bcachefs (loop0): accounting_read... done [ 67.081910][ T5851] bcachefs (loop0): alloc_read... done [ 67.087412][ T5851] bcachefs (loop0): stripes_read... done [ 67.093216][ T5851] bcachefs (loop0): snapshots_read... done [pid 5851] mount("/dev/loop0", "./file0", "bcachefs", MS_POSIXACL, "fsck,inline_data,nocow,degraded,str_hash=siphash,norecovery,discard,reconstruct_alloc,erasure_code,a"...) = 0 [pid 5851] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5851] chdir("./file0") = 0 [pid 5851] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [ 67.099430][ T5851] bcachefs (loop0): check_allocations... done [ 67.116928][ T5851] bcachefs (loop0): going read-write [ 67.126127][ T5851] bcachefs (loop0): done starting filesystem [pid 5851] ioctl(4, LOOP_CLR_FD) = 0 [pid 5851] close(4) = 0 [pid 5851] creat("./file1", 050) = 4 [pid 5851] exit_group(0) = ? [pid 5851] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5851, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=26 /* 0.26 s */} --- umount2("./2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55556cc1b6f0 /* 4 entries */, 32768) = 112 umount2("./2/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./2/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./2/binderfs") = 0 [ 67.333654][ T5827] bcachefs (loop0): shutting down [ 67.338706][ T5827] bcachefs (loop0): going read-only [ 67.344211][ T5827] bcachefs (loop0): finished waiting for writes to stop [ 67.352534][ T5827] bcachefs (loop0): flushing journal and stopping allocators, journal seq 11 [ 67.364711][ T12] bcachefs (loop0): bch2_write_super(): fatal error loop0: Superblock write was silently dropped! (seq 0 expected 54) [ 67.377786][ T12] bcachefs (loop0): fatal error - emergency read only [ 67.385090][ T5827] bcachefs (loop0): flushing journal and stopping allocators complete, journal seq 11 [ 67.394864][ T5827] bcachefs (loop0): unshutdown complete, journal seq 11 [ 67.402568][ T5827] bcachefs (loop0): done going read-only, filesystem not clean [ 67.418464][ T5827] bcachefs (loop0): shutdown complete umount2("./2/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./2/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./2/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./2/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./2/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(4, 0x55556cc23730 /* 2 entries */, 32768) = 48 getdents64(4, 0x55556cc23730 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./2/file0") = 0 getdents64(3, 0x55556cc1b6f0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./2") = 0 mkdir("./3", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5863 attached [pid 5863] set_robust_list(0x55556cc1a660, 24) = 0 [pid 5863] chdir("./3") = 0 [pid 5827] <... clone resumed>, child_tidptr=0x55556cc1a650) = 5863 [pid 5863] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5863] setpgid(0, 0) = 0 [pid 5863] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5863] write(3, "1000", 4) = 4 [pid 5863] close(3) = 0 [pid 5863] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5863] write(1, "executing program\n", 18executing program ) = 18 [pid 5863] memfd_create("syzkaller", 0) = 3 [pid 5863] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f16a1200000 [pid 5863] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5863] munmap(0x7f16a1200000, 138412032) = 0 [pid 5863] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5863] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5863] close(3) = 0 [pid 5863] close(4) = 0 [pid 5863] mkdir("./file0", 0777) = 0 [ 68.720455][ T5863] loop0: detected capacity change from 0 to 32768 [ 68.796856][ T5863] bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=none,compression=lz4,erasure_code,degraded,no_splitbrain_check,fsck,norecovery,nojournal_transaction_names,reconstruct_alloc,nocow [ 68.819237][ T5863] bcachefs (loop0): recovering from clean shutdown, journal seq 10 [ 68.827398][ T5863] bcachefs (loop0): Version upgrade required: [ 68.827398][ T5863] Version upgrade from 0.24: unwritten_extents to 1.7: mi_btree_bitmap incomplete [ 68.827398][ T5863] Doing incompatible version upgrade from 0.24: unwritten_extents to 1.13: inode_has_child_snapshots [ 68.827398][ T5863] running recovery passes: check_allocations,check_alloc_info,check_lrus,check_btree_backpointers,check_backpointers_to_extents,check_extents_to_backpointers,check_alloc_to_lru_refs,bucket_gens_init,check_snapshot_trees,check_snapshots,check_subvols,check_subvol_children,delete_dead_snapshots,check_inodes,check_extents,check_indirect_extents,check_dirents,check_xattrs,check_root,check_unreachable_inodes,check_subvolume_structure,check_directory_structure,check_nlinks,set_fs_needs_rebalance [ 68.900177][ T5863] bcachefs (loop0): dropping and reconstructing all alloc info [ 68.915203][ T5863] bcachefs (loop0): check_topology... done [ 68.921235][ T5863] bcachefs (loop0): accounting_read... done [ 68.928017][ T5863] bcachefs (loop0): alloc_read... done [ 68.933662][ T5863] bcachefs (loop0): stripes_read... done [ 68.939380][ T5863] bcachefs (loop0): snapshots_read... done [pid 5863] mount("/dev/loop0", "./file0", "bcachefs", MS_POSIXACL, "fsck,inline_data,nocow,degraded,str_hash=siphash,norecovery,discard,reconstruct_alloc,erasure_code,a"...) = 0 [pid 5863] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5863] chdir("./file0") = 0 [pid 5863] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5863] ioctl(4, LOOP_CLR_FD) = 0 [pid 5863] close(4) = 0 [pid 5863] creat("./file1", 050) = 4 [pid 5863] exit_group(0) = ? [pid 5863] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5863, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=20 /* 0.20 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./3", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [ 68.945311][ T5863] bcachefs (loop0): check_allocations... done [ 68.962320][ T5863] bcachefs (loop0): going read-write [ 68.971683][ T5863] bcachefs (loop0): done starting filesystem getdents64(3, 0x55556cc1b6f0 /* 4 entries */, 32768) = 112 umount2("./3/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./3/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./3/binderfs") = 0 [ 69.021595][ T5827] bcachefs (loop0): shutting down [ 69.026670][ T5827] bcachefs (loop0): going read-only [ 69.032467][ T5827] bcachefs (loop0): finished waiting for writes to stop [ 69.040710][ T5827] bcachefs (loop0): flushing journal and stopping allocators, journal seq 11 [ 69.052308][ T3556] bcachefs (loop0): bch2_write_super(): fatal error loop0: Superblock write was silently dropped! (seq 0 expected 54) [ 69.065450][ T3556] bcachefs (loop0): fatal error - emergency read only [ 69.073337][ T5827] bcachefs (loop0): flushing journal and stopping allocators complete, journal seq 11 [ 69.083041][ T5827] bcachefs (loop0): unshutdown complete, journal seq 11 [ 69.091010][ T5827] bcachefs (loop0): done going read-only, filesystem not clean [ 69.106318][ T5827] bcachefs (loop0): shutdown complete umount2("./3/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./3/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./3/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./3/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./3/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(4, 0x55556cc23730 /* 2 entries */, 32768) = 48 getdents64(4, 0x55556cc23730 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./3/file0") = 0 getdents64(3, 0x55556cc1b6f0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./3") = 0 mkdir("./4", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5875 attached , child_tidptr=0x55556cc1a650) = 5875 [pid 5875] set_robust_list(0x55556cc1a660, 24) = 0 [pid 5875] chdir("./4") = 0 [pid 5875] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5875] setpgid(0, 0) = 0 [pid 5875] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5875] write(3, "1000", 4) = 4 [pid 5875] close(3) = 0 [pid 5875] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5875] write(1, "executing program\n", 18) = 18 [pid 5875] memfd_create("syzkaller", 0) = 3 [pid 5875] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f16a1200000 [pid 5875] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5875] munmap(0x7f16a1200000, 138412032) = 0 [pid 5875] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5875] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5875] close(3) = 0 [pid 5875] close(4) = 0 [pid 5875] mkdir("./file0", 0777) = 0 [ 70.500382][ T5875] loop0: detected capacity change from 0 to 32768 [ 70.555058][ T5875] bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=none,compression=lz4,erasure_code,degraded,no_splitbrain_check,fsck,norecovery,nojournal_transaction_names,reconstruct_alloc,nocow [ 70.577450][ T5875] bcachefs (loop0): recovering from clean shutdown, journal seq 10 [ 70.585640][ T5875] bcachefs (loop0): Version upgrade required: [ 70.585640][ T5875] Version upgrade from 0.24: unwritten_extents to 1.7: mi_btree_bitmap incomplete [ 70.585640][ T5875] Doing incompatible version upgrade from 0.24: unwritten_extents to 1.13: inode_has_child_snapshots [ 70.585640][ T5875] running recovery passes: check_allocations,check_alloc_info,check_lrus,check_btree_backpointers,check_backpointers_to_extents,check_extents_to_backpointers,check_alloc_to_lru_refs,bucket_gens_init,check_snapshot_trees,check_snapshots,check_subvols,check_subvol_children,delete_dead_snapshots,check_inodes,check_extents,check_indirect_extents,check_dirents,check_xattrs,check_root,check_unreachable_inodes,check_subvolume_structure,check_directory_structure,check_nlinks,set_fs_needs_rebalance [ 70.658384][ T5875] bcachefs (loop0): dropping and reconstructing all alloc info [ 70.673060][ T5875] bcachefs (loop0): check_topology... done [ 70.678905][ T5875] bcachefs (loop0): accounting_read... done [ 70.685146][ T5875] bcachefs (loop0): alloc_read... done [ 70.690802][ T5875] bcachefs (loop0): stripes_read... done [ 70.696465][ T5875] bcachefs (loop0): snapshots_read... done [pid 5875] mount("/dev/loop0", "./file0", "bcachefs", MS_POSIXACL, "fsck,inline_data,nocow,degraded,str_hash=siphash,norecovery,discard,reconstruct_alloc,erasure_code,a"...) = 0 [pid 5875] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5875] chdir("./file0") = 0 [pid 5875] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5875] ioctl(4, LOOP_CLR_FD) = 0 [pid 5875] close(4) = 0 [ 70.702407][ T5875] bcachefs (loop0): check_allocations... done [ 70.721585][ T5875] bcachefs (loop0): going read-write [ 70.730600][ T5875] bcachefs (loop0): done starting filesystem [pid 5875] creat("./file1", 050) = 4 [pid 5875] exit_group(0) = ? [pid 5875] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5875, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=24 /* 0.24 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./4", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55556cc1b6f0 /* 4 entries */, 32768) = 112 umount2("./4/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./4/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./4/binderfs") = 0 [ 70.909778][ T5827] bcachefs (loop0): shutting down [ 70.915016][ T5827] bcachefs (loop0): going read-only [ 70.920375][ T5827] bcachefs (loop0): finished waiting for writes to stop [ 70.927714][ T5827] bcachefs (loop0): flushing journal and stopping allocators, journal seq 11 [ 70.939273][ T35] bcachefs (loop0): bch2_write_super(): fatal error loop0: Superblock write was silently dropped! (seq 0 expected 54) [ 70.952497][ T35] bcachefs (loop0): fatal error - emergency read only [ 70.959627][ T5827] bcachefs (loop0): flushing journal and stopping allocators complete, journal seq 11 [ 70.969686][ T5827] bcachefs (loop0): unshutdown complete, journal seq 11 [ 70.977221][ T5827] bcachefs (loop0): done going read-only, filesystem not clean [ 70.992961][ T5827] bcachefs (loop0): shutdown complete umount2("./4/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./4/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./4/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./4/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./4/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(4, 0x55556cc23730 /* 2 entries */, 32768) = 48 getdents64(4, 0x55556cc23730 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./4/file0") = 0 getdents64(3, 0x55556cc1b6f0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./4") = 0 mkdir("./5", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5886 attached , child_tidptr=0x55556cc1a650) = 5886 [pid 5886] set_robust_list(0x55556cc1a660, 24) = 0 [pid 5886] chdir("./5") = 0 [pid 5886] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5886] setpgid(0, 0) = 0 [pid 5886] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5886] write(3, "1000", 4) = 4 [pid 5886] close(3) = 0 [pid 5886] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5886] write(1, "executing program\n", 18) = 18 [pid 5886] memfd_create("syzkaller", 0) = 3 [pid 5886] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f16a1200000 [pid 5886] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5886] munmap(0x7f16a1200000, 138412032) = 0 [pid 5886] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5886] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5886] close(3) = 0 [pid 5886] close(4) = 0 [pid 5886] mkdir("./file0", 0777) = 0 [ 72.296342][ T5886] loop0: detected capacity change from 0 to 32768 [ 72.367154][ T5886] bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=none,compression=lz4,erasure_code,degraded,no_splitbrain_check,fsck,norecovery,nojournal_transaction_names,reconstruct_alloc,nocow [ 72.389704][ T5886] bcachefs (loop0): recovering from clean shutdown, journal seq 10 [ 72.397805][ T5886] bcachefs (loop0): Version upgrade required: [ 72.397805][ T5886] Version upgrade from 0.24: unwritten_extents to 1.7: mi_btree_bitmap incomplete [ 72.397805][ T5886] Doing incompatible version upgrade from 0.24: unwritten_extents to 1.13: inode_has_child_snapshots [ 72.397805][ T5886] running recovery passes: check_allocations,check_alloc_info,check_lrus,check_btree_backpointers,check_backpointers_to_extents,check_extents_to_backpointers,check_alloc_to_lru_refs,bucket_gens_init,check_snapshot_trees,check_snapshots,check_subvols,check_subvol_children,delete_dead_snapshots,check_inodes,check_extents,check_indirect_extents,check_dirents,check_xattrs,check_root,check_unreachable_inodes,check_subvolume_structure,check_directory_structure,check_nlinks,set_fs_needs_rebalance [ 72.470048][ T5886] bcachefs (loop0): dropping and reconstructing all alloc info [ 72.484814][ T5886] bcachefs (loop0): check_topology... done [ 72.490730][ T5886] bcachefs (loop0): accounting_read... done [ 72.496759][ T5886] bcachefs (loop0): alloc_read... done [ 72.502356][ T5886] bcachefs (loop0): stripes_read... done [ 72.508033][ T5886] bcachefs (loop0): snapshots_read... done [pid 5886] mount("/dev/loop0", "./file0", "bcachefs", MS_POSIXACL, "fsck,inline_data,nocow,degraded,str_hash=siphash,norecovery,discard,reconstruct_alloc,erasure_code,a"...) = 0 [pid 5886] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5886] chdir("./file0") = 0 [pid 5886] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5886] ioctl(4, LOOP_CLR_FD) = 0 [pid 5886] close(4) = 0 [pid 5886] creat("./file1", 050) = 4 [pid 5886] exit_group(0) = ? [ 72.513966][ T5886] bcachefs (loop0): check_allocations... done [ 72.530743][ T5886] bcachefs (loop0): going read-write [ 72.539737][ T5886] bcachefs (loop0): done starting filesystem [pid 5886] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5886, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=24 /* 0.24 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./5", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55556cc1b6f0 /* 4 entries */, 32768) = 112 umount2("./5/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./5/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./5/binderfs") = 0 [ 72.695687][ T5827] bcachefs (loop0): shutting down [ 72.700889][ T5827] bcachefs (loop0): going read-only [ 72.706108][ T5827] bcachefs (loop0): finished waiting for writes to stop [ 72.714200][ T5827] bcachefs (loop0): flushing journal and stopping allocators, journal seq 11 [ 72.726616][ T3556] bcachefs (loop0): bch2_write_super(): fatal error loop0: Superblock write was silently dropped! (seq 0 expected 54) [ 72.740318][ T3556] bcachefs (loop0): fatal error - emergency read only [ 72.747699][ T5827] bcachefs (loop0): flushing journal and stopping allocators complete, journal seq 11 [ 72.757422][ T5827] bcachefs (loop0): unshutdown complete, journal seq 11 [ 72.765115][ T5827] bcachefs (loop0): done going read-only, filesystem not clean [ 72.780073][ T5827] bcachefs (loop0): shutdown complete umount2("./5/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./5/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./5/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./5/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./5/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(4, 0x55556cc23730 /* 2 entries */, 32768) = 48 getdents64(4, 0x55556cc23730 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./5/file0") = 0 getdents64(3, 0x55556cc1b6f0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./5") = 0 mkdir("./6", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5897 attached , child_tidptr=0x55556cc1a650) = 5897 [pid 5897] set_robust_list(0x55556cc1a660, 24) = 0 [pid 5897] chdir("./6") = 0 [pid 5897] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5897] setpgid(0, 0) = 0 [pid 5897] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5897] write(3, "1000", 4) = 4 [pid 5897] close(3) = 0 [pid 5897] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5897] write(1, "executing program\n", 18) = 18 [pid 5897] memfd_create("syzkaller", 0) = 3 [pid 5897] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f16a1200000 [pid 5897] 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 5897] munmap(0x7f16a1200000, 138412032) = 0 [pid 5897] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5897] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5897] close(3) = 0 [pid 5897] close(4) = 0 [pid 5897] mkdir("./file0", 0777) = 0 [ 74.081556][ T5897] loop0: detected capacity change from 0 to 32768 [ 74.146043][ T5897] bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=none,compression=lz4,erasure_code,degraded,no_splitbrain_check,fsck,norecovery,nojournal_transaction_names,reconstruct_alloc,nocow [ 74.168418][ T5897] bcachefs (loop0): recovering from clean shutdown, journal seq 10 [ 74.176855][ T5897] bcachefs (loop0): Version upgrade required: [ 74.176855][ T5897] Version upgrade from 0.24: unwritten_extents to 1.7: mi_btree_bitmap incomplete [ 74.176855][ T5897] Doing incompatible version upgrade from 0.24: unwritten_extents to 1.13: inode_has_child_snapshots [ 74.176855][ T5897] running recovery passes: check_allocations,check_alloc_info,check_lrus,check_btree_backpointers,check_backpointers_to_extents,check_extents_to_backpointers,check_alloc_to_lru_refs,bucket_gens_init,check_snapshot_trees,check_snapshots,check_subvols,check_subvol_children,delete_dead_snapshots,check_inodes,check_extents,check_indirect_extents,check_dirents,check_xattrs,check_root,check_unreachable_inodes,check_subvolume_structure,check_directory_structure,check_nlinks,set_fs_needs_rebalance [ 74.250365][ T5897] bcachefs (loop0): dropping and reconstructing all alloc info [ 74.265087][ T5897] bcachefs (loop0): check_topology... done [ 74.271061][ T5897] bcachefs (loop0): accounting_read... done [ 74.277159][ T5897] bcachefs (loop0): alloc_read... done [ 74.282719][ T5897] bcachefs (loop0): stripes_read... done [ 74.288424][ T5897] bcachefs (loop0): snapshots_read... done [pid 5897] mount("/dev/loop0", "./file0", "bcachefs", MS_POSIXACL, "fsck,inline_data,nocow,degraded,str_hash=siphash,norecovery,discard,reconstruct_alloc,erasure_code,a"...) = 0 [pid 5897] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5897] chdir("./file0") = 0 [ 74.294397][ T5897] bcachefs (loop0): check_allocations... done [ 74.311285][ T5897] bcachefs (loop0): going read-write [ 74.319727][ T5897] bcachefs (loop0): done starting filesystem [pid 5897] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5897] ioctl(4, LOOP_CLR_FD) = 0 [pid 5897] close(4) = 0 [pid 5897] creat("./file1", 050) = 4 [pid 5897] exit_group(0) = ? [pid 5897] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5897, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=26 /* 0.26 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./6", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55556cc1b6f0 /* 4 entries */, 32768) = 112 umount2("./6/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./6/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./6/binderfs") = 0 [ 74.478852][ T5827] bcachefs (loop0): shutting down [ 74.484058][ T5827] bcachefs (loop0): going read-only [ 74.489279][ T5827] bcachefs (loop0): finished waiting for writes to stop [ 74.497731][ T5827] bcachefs (loop0): flushing journal and stopping allocators, journal seq 12 [ 74.508719][ T3556] bcachefs (loop0): bch2_write_super(): fatal error loop0: Superblock write was silently dropped! (seq 0 expected 54) [ 74.521806][ T3556] bcachefs (loop0): fatal error - emergency read only [ 74.529052][ T5827] bcachefs (loop0): flushing journal and stopping allocators complete, journal seq 12 [ 74.539013][ T5827] bcachefs (loop0): unshutdown complete, journal seq 12 [ 74.546531][ T5827] bcachefs (loop0): done going read-only, filesystem not clean [ 74.561976][ T5827] bcachefs (loop0): shutdown complete umount2("./6/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./6/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./6/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./6/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./6/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(4, 0x55556cc23730 /* 2 entries */, 32768) = 48 getdents64(4, 0x55556cc23730 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./6/file0") = 0 getdents64(3, 0x55556cc1b6f0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./6") = 0 mkdir("./7", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5908 attached , child_tidptr=0x55556cc1a650) = 5908 [pid 5908] set_robust_list(0x55556cc1a660, 24) = 0 [pid 5908] chdir("./7") = 0 [pid 5908] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5908] setpgid(0, 0) = 0 [pid 5908] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5908] write(3, "1000", 4) = 4 [pid 5908] close(3) = 0 [pid 5908] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5908] write(1, "executing program\n", 18) = 18 [pid 5908] memfd_create("syzkaller", 0) = 3 [pid 5908] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f16a1200000 [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) = 16777216 [pid 5908] munmap(0x7f16a1200000, 138412032) = 0 [pid 5908] openat(AT_FDCWD, "/dev/loop0", 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 [ 75.919502][ T5908] loop0: detected capacity change from 0 to 32768 [ 75.994056][ T5908] bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=none,compression=lz4,erasure_code,degraded,no_splitbrain_check,fsck,norecovery,nojournal_transaction_names,reconstruct_alloc,nocow [ 76.016413][ T5908] bcachefs (loop0): recovering from clean shutdown, journal seq 10 [ 76.024576][ T5908] bcachefs (loop0): Version upgrade required: [ 76.024576][ T5908] Version upgrade from 0.24: unwritten_extents to 1.7: mi_btree_bitmap incomplete [ 76.024576][ T5908] Doing incompatible version upgrade from 0.24: unwritten_extents to 1.13: inode_has_child_snapshots [ 76.024576][ T5908] running recovery passes: check_allocations,check_alloc_info,check_lrus,check_btree_backpointers,check_backpointers_to_extents,check_extents_to_backpointers,check_alloc_to_lru_refs,bucket_gens_init,check_snapshot_trees,check_snapshots,check_subvols,check_subvol_children,delete_dead_snapshots,check_inodes,check_extents,check_indirect_extents,check_dirents,check_xattrs,check_root,check_unreachable_inodes,check_subvolume_structure,check_directory_structure,check_nlinks,set_fs_needs_rebalance [ 76.096404][ T5908] bcachefs (loop0): dropping and reconstructing all alloc info [ 76.111633][ T5908] bcachefs (loop0): check_topology... done [ 76.117483][ T5908] bcachefs (loop0): accounting_read... done [ 76.123630][ T5908] bcachefs (loop0): alloc_read... done [ 76.129227][ T5908] bcachefs (loop0): stripes_read... done [ 76.134969][ T5908] bcachefs (loop0): snapshots_read... done [pid 5908] mount("/dev/loop0", "./file0", "bcachefs", MS_POSIXACL, "fsck,inline_data,nocow,degraded,str_hash=siphash,norecovery,discard,reconstruct_alloc,erasure_code,a"...) = 0 [pid 5908] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5908] chdir("./file0") = 0 [pid 5908] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5908] ioctl(4, LOOP_CLR_FD) = 0 [pid 5908] close(4) = 0 [pid 5908] creat("./file1", 050) = 4 [pid 5908] exit_group(0) = ? [pid 5908] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5908, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=22 /* 0.22 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./7", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 76.140951][ T5908] bcachefs (loop0): check_allocations... done [ 76.157858][ T5908] bcachefs (loop0): going read-write [ 76.167139][ T5908] bcachefs (loop0): done starting filesystem openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55556cc1b6f0 /* 4 entries */, 32768) = 112 umount2("./7/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./7/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./7/binderfs") = 0 [ 76.217846][ T5827] bcachefs (loop0): shutting down [ 76.223113][ T5827] bcachefs (loop0): going read-only [ 76.228405][ T5827] bcachefs (loop0): finished waiting for writes to stop [ 76.236389][ T5827] bcachefs (loop0): flushing journal and stopping allocators, journal seq 11 [ 76.253881][ T5827] bcachefs (loop0): flushing journal and stopping allocators complete, journal seq 12 [ 76.265201][ T5827] bcachefs (loop0): unshutdown complete, journal seq 13 [ 76.272768][ T5827] bcachefs (loop0): done going read-only, filesystem not clean [ 76.287995][ T5827] bcachefs (loop0): shutdown complete [ 76.791436][ T968] cfg80211: failed to load regulatory.db [ 77.018240][ T5827] ------------[ cut here ]------------ [ 77.023958][ T5827] kernel BUG at fs/bcachefs/btree_cache.c:594! [ 77.036507][ T5827] Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI [ 77.043483][ T5827] CPU: 1 UID: 0 PID: 5827 Comm: syz-executor406 Not tainted 6.12.0-rc5-syzkaller-00063-g0fc810ae3ae1 #0 [ 77.054684][ T5827] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 77.064834][ T5827] RIP: 0010:bch2_fs_btree_cache_exit+0x1124/0x1130 [ 77.071342][ T5827] Code: fd 90 0f 0b e8 2d 3c 84 fd 90 0f 0b e8 25 3c 84 fd 90 0f 0b e8 1d 3c 84 fd 90 0f 0b e8 15 3c 84 fd 90 0f 0b e8 0d 3c 84 fd 90 <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 [ 77.090938][ T5827] RSP: 0018:ffffc9000370fb20 EFLAGS: 00010293 [ 77.097014][ T5827] RAX: ffffffff84109db3 RBX: 0000000000000002 RCX: ffff8880352b0000 [ 77.104984][ T5827] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 [ 77.112954][ T5827] RBP: 1ffff1100f5e6a16 R08: ffffffff84109457 R09: 1ffff1100dd803b6 [ 77.120915][ T5827] R10: dffffc0000000000 R11: ffffed100dd803b7 R12: ffff88806ec01c78 [ 77.128873][ T5827] R13: ffff88806ec00000 R14: 0000000000000000 R15: dffffc0000000000 [ 77.136832][ T5827] FS: 000055556cc1a380(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 [ 77.145757][ T5827] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 77.152327][ T5827] CR2: 00007fdf97566731 CR3: 000000002a636000 CR4: 00000000003526f0 [ 77.160288][ T5827] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 77.168244][ T5827] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 77.176199][ T5827] Call Trace: [ 77.179462][ T5827] [ 77.182377][ T5827] ? __die_body+0x5f/0xb0 [ 77.186690][ T5827] ? die+0x9e/0xc0 [ 77.190394][ T5827] ? do_trap+0x15a/0x3a0 [ 77.194626][ T5827] ? bch2_fs_btree_cache_exit+0x1124/0x1130 [ 77.200509][ T5827] ? do_error_trap+0x1dc/0x2c0 [ 77.205274][ T5827] ? bch2_fs_btree_cache_exit+0x1124/0x1130 [ 77.211151][ T5827] ? __pfx_do_error_trap+0x10/0x10 [ 77.216249][ T5827] ? report_bug+0x3e8/0x500 [ 77.220745][ T5827] ? handle_invalid_op+0x34/0x40 [ 77.225664][ T5827] ? bch2_fs_btree_cache_exit+0x1124/0x1130 [ 77.231625][ T5827] ? exc_invalid_op+0x38/0x50 [ 77.236287][ T5827] ? asm_exc_invalid_op+0x1a/0x20 [ 77.241297][ T5827] ? bch2_fs_btree_cache_exit+0x7c7/0x1130 [ 77.247090][ T5827] ? bch2_fs_btree_cache_exit+0x1123/0x1130 [ 77.252986][ T5827] ? bch2_fs_btree_cache_exit+0x1124/0x1130 [ 77.258889][ T5827] bch2_fs_release+0x20e/0x7d0 [ 77.263639][ T5827] ? kobject_put+0x44d/0x480 [ 77.268212][ T5827] kobject_put+0x22f/0x480 [ 77.272614][ T5827] deactivate_locked_super+0xc4/0x130 [ 77.277971][ T5827] cleanup_mnt+0x41f/0x4b0 [ 77.282381][ T5827] ? lockdep_hardirqs_on+0x99/0x150 [ 77.287559][ T5827] task_work_run+0x24f/0x310 [ 77.292131][ T5827] ? __pfx_task_work_run+0x10/0x10 [ 77.297222][ T5827] ? path_umount+0x284/0xf70 [ 77.301811][ T5827] ptrace_notify+0x2d2/0x380 [ 77.306383][ T5827] ? __pfx_path_umount+0x10/0x10 [ 77.311304][ T5827] ? __pfx_ptrace_notify+0x10/0x10 [ 77.316396][ T5827] ? __x64_sys_umount+0x123/0x170 [ 77.321401][ T5827] ? __pfx___x64_sys_umount+0x10/0x10 [ 77.326753][ T5827] syscall_exit_work+0xc6/0x190 [ 77.331589][ T5827] syscall_exit_to_user_mode+0x279/0x370 [ 77.337223][ T5827] do_syscall_64+0x100/0x230 [ 77.342057][ T5827] ? clear_bhb_loop+0x35/0x90 [ 77.346717][ T5827] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 77.352594][ T5827] RIP: 0033:0x7f16a9759387 [ 77.357002][ T5827] Code: 07 00 48 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 [ 77.376591][ T5827] RSP: 002b:00007ffecf878428 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 [ 77.384989][ T5827] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f16a9759387 [ 77.392946][ T5827] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffecf8784e0 [ 77.400899][ T5827] RBP: 00007ffecf8784e0 R08: 0000000000000000 R09: 0000000000000000 [ 77.408858][ T5827] R10: 00000000ffffffff R11: 0000000000000206 R12: 00007ffecf879540 [ 77.416809][ T5827] R13: 000055556cc1b6c0 R14: 0000000000000008 R15: 431bde82d7b634db [ 77.424767][ T5827] [ 77.427791][ T5827] Modules linked in: [ 77.431962][ T5827] ---[ end trace 0000000000000000 ]--- [ 77.439330][ T5827] RIP: 0010:bch2_fs_btree_cache_exit+0x1124/0x1130 [ 77.445998][ T5827] Code: fd 90 0f 0b e8 2d 3c 84 fd 90 0f 0b e8 25 3c 84 fd 90 0f 0b e8 1d 3c 84 fd 90 0f 0b e8 15 3c 84 fd 90 0f 0b e8 0d 3c 84 fd 90 <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 [ 77.465791][ T5827] RSP: 0018:ffffc9000370fb20 EFLAGS: 00010293 [ 77.472092][ T5827] RAX: ffffffff84109db3 RBX: 0000000000000002 RCX: ffff8880352b0000 [ 77.480124][ T5827] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 [ 77.488089][ T5827] RBP: 1ffff1100f5e6a16 R08: ffffffff84109457 R09: 1ffff1100dd803b6 [ 77.496103][ T5827] R10: dffffc0000000000 R11: ffffed100dd803b7 R12: ffff88806ec01c78 [ 77.504109][ T5827] R13: ffff88806ec00000 R14: 0000000000000000 R15: dffffc0000000000 [ 77.512100][ T5827] FS: 000055556cc1a380(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 [ 77.521062][ T5827] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 77.527645][ T5827] CR2: 00007ffecf877c78 CR3: 000000002a636000 CR4: 00000000003526f0 [ 77.535689][ T5827] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 77.543737][ T5827] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 77.551864][ T5827] Kernel panic - not syncing: Fatal exception [ 77.558150][ T5827] Kernel Offset: disabled [ 77.562462][ T5827] Rebooting in 86400 seconds..