[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[ 19.037852] random: sshd: uninitialized urandom read (32 bytes read) [?25l[?1c7[ ok 8[?25h[?0c. [ 19.283219] random: sshd: uninitialized urandom read (32 bytes read) [ 19.550546] random: sshd: uninitialized urandom read (32 bytes read) Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 20.335923] random: sshd: uninitialized urandom read (32 bytes read) [ 20.491836] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.10.31' (ECDSA) to the list of known hosts. [ 26.029545] random: sshd: uninitialized urandom read (32 bytes read) executing program executing program executing program executing program executing program executing program executing program executing program [ 26.126489] BTRFS: device fsid ecf6f2a2-2997-48ae-b81e-1b00920efd9a devid 8864001721458204 transid 756082810144684242 /dev/loop0 [ 26.147845] BTRFS error (device loop1): unsupported checksum algorithm 3786 [ 26.155101] BTRFS error (device loop1): superblock checksum mismatch [ 26.205052] BTRFS error (device loop1): open_ctree failed [ 26.219578] BTRFS error (device loop1): unsupported checksum algorithm 3786 [ 26.226821] BTRFS error (device loop1): superblock checksum mismatch [ 26.233555] BTRFS error (device loop1): open_ctree failed [ 26.240569] BTRFS error (device loop1): unsupported checksum algorithm 3786 [ 26.247718] BTRFS error (device loop1): superblock checksum mismatch executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 26.254616] BTRFS error (device loop1): open_ctree failed [ 26.263805] BTRFS error (device loop1): unsupported checksum algorithm 3786 [ 26.271011] BTRFS error (device loop1): superblock checksum mismatch [ 26.279891] BTRFS error (device loop1): open_ctree failed [ 26.291106] BTRFS error (device loop1): unsupported checksum algorithm 3786 [ 26.298370] BTRFS error (device loop1): superblock checksum mismatch executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 26.315780] BTRFS error (device loop1): open_ctree failed [ 26.339077] BTRFS error (device loop1): unsupported checksum algorithm 3786 [ 26.346258] BTRFS error (device loop1): superblock checksum mismatch executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 26.366418] BTRFS error (device loop1): open_ctree failed [ 26.392982] BTRFS error (device loop1): unsupported checksum algorithm 3786 [ 26.400170] BTRFS error (device loop1): superblock checksum mismatch executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 26.423546] BTRFS error (device loop1): open_ctree failed [ 26.440471] BTRFS error (device loop1): unsupported checksum algorithm 3786 [ 26.447671] BTRFS error (device loop1): superblock checksum mismatch [ 26.454797] BTRFS error (device loop1): open_ctree failed [ 26.462667] BTRFS error (device loop1): unsupported checksum algorithm 3786 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 26.469841] BTRFS error (device loop1): superblock checksum mismatch [ 26.486770] BTRFS error (device loop1): open_ctree failed [ 26.502151] BTRFS error (device loop1): unsupported checksum algorithm 3786 [ 26.509357] BTRFS error (device loop1): superblock checksum mismatch [ 26.516671] BTRFS error (device loop1): open_ctree failed executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 26.531895] BTRFS error (device loop1): unsupported checksum algorithm 3786 [ 26.539133] BTRFS error (device loop1): superblock checksum mismatch executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 26.582291] BTRFS error (device loop1): open_ctree failed [ 26.620374] BTRFS error (device loop1): unsupported checksum algorithm 3786 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 26.627605] BTRFS error (device loop1): superblock checksum mismatch executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 26.672411] BTRFS error (device loop1): open_ctree failed [ 26.690109] BTRFS error (device loop1): unsupported checksum algorithm 3786 [ 26.697397] BTRFS error (device loop1): superblock checksum mismatch [ 26.708978] BTRFS error (device loop1): open_ctree failed executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 26.722216] BTRFS error (device loop1): unsupported checksum algorithm 3786 [ 26.729520] BTRFS error (device loop1): superblock checksum mismatch [ 26.741467] BTRFS error (device loop1): open_ctree failed [ 26.753335] BTRFS error (device loop1): unsupported checksum algorithm 3786 [ 26.760572] BTRFS error (device loop1): superblock checksum mismatch executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 26.772583] BTRFS error (device loop1): open_ctree failed [ 26.783562] BTRFS error (device loop1): unsupported checksum algorithm 3786 [ 26.790768] BTRFS error (device loop1): superblock checksum mismatch [ 26.803797] BTRFS error (device loop1): open_ctree failed executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 26.826570] BTRFS error (device loop1): unsupported checksum algorithm 3786 [ 26.833831] BTRFS error (device loop1): superblock checksum mismatch [ 26.841630] BTRFS error (device loop1): open_ctree failed [ 26.858424] BTRFS error (device loop1): unsupported checksum algorithm 3786 [ 26.865684] BTRFS error (device loop1): superblock checksum mismatch executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 26.872926] BTRFS error (device loop1): open_ctree failed [ 26.881325] BTRFS error (device loop1): unsupported checksum algorithm 3786 [ 26.888490] BTRFS error (device loop1): superblock checksum mismatch [ 26.916182] BTRFS error (device loop1): open_ctree failed executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 26.944533] BTRFS error (device loop1): unsupported checksum algorithm 3786 [ 26.951717] BTRFS error (device loop1): superblock checksum mismatch [ 26.958845] BTRFS error (device loop1): open_ctree failed [ 26.982941] BTRFS error (device loop1): unsupported checksum algorithm 3786 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 26.990182] BTRFS error (device loop1): superblock checksum mismatch executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 27.018622] BTRFS error (device loop1): open_ctree failed [ 27.040193] BTRFS error (device loop1): unsupported checksum algorithm 3786 [ 27.047416] BTRFS error (device loop1): superblock checksum mismatch executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 27.087598] BTRFS error (device loop1): open_ctree failed [ 27.107766] BTRFS error (device loop1): unsupported checksum algorithm 3786 [ 27.115170] BTRFS error (device loop1): superblock checksum mismatch [ 27.131419] BTRFS error (device loop1): open_ctree failed executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 27.144980] BTRFS error (device loop1): unsupported checksum algorithm 3786 [ 27.152175] BTRFS error (device loop1): superblock checksum mismatch [ 27.168276] BTRFS error (device loop1): open_ctree failed [ 27.185042] BTRFS error (device loop1): unsupported checksum algorithm 3786 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 27.192222] BTRFS error (device loop1): superblock checksum mismatch executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 27.223266] BTRFS error (device loop1): open_ctree failed [ 27.249201] BTRFS error (device loop1): unsupported checksum algorithm 3786 [ 27.256424] BTRFS error (device loop1): superblock checksum mismatch executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 27.286307] BTRFS error (device loop1): open_ctree failed [ 27.307662] BTRFS error (device loop1): unsupported checksum algorithm 3786 [ 27.314895] BTRFS error (device loop1): superblock checksum mismatch executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 27.355180] BTRFS error (device loop1): open_ctree failed [ 27.385804] BTRFS error (device loop1): unsupported checksum algorithm 3786 [ 27.393079] BTRFS error (device loop1): superblock checksum mismatch executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 27.416643] BTRFS error (device loop1): open_ctree failed [ 27.436964] BTRFS error (device loop1): unsupported checksum algorithm 3786 [ 27.444173] BTRFS error (device loop1): superblock checksum mismatch executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 27.473560] BTRFS error (device loop1): open_ctree failed [ 27.483892] BTRFS error (device loop1): unsupported checksum algorithm 3786 [ 27.491079] BTRFS error (device loop1): superblock checksum mismatch [ 27.499656] BTRFS error (device loop1): open_ctree failed executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 27.527076] BTRFS error (device loop1): unsupported checksum algorithm 3786 [ 27.534353] BTRFS error (device loop1): superblock checksum mismatch [ 27.564883] BTRFS error (device loop1): open_ctree failed executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 27.582457] BTRFS error (device loop1): unsupported checksum algorithm 3786 [ 27.589681] BTRFS error (device loop1): superblock checksum mismatch [ 27.618047] BTRFS error (device loop1): open_ctree failed executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 27.642153] BTRFS error (device loop1): unsupported checksum algorithm 3786 [ 27.649416] BTRFS error (device loop1): superblock checksum mismatch [ 27.680520] BTRFS error (device loop1): open_ctree failed executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 27.691092] BTRFS error (device loop1): unsupported checksum algorithm 3786 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 28.290834] WARNING: CPU: 1 PID: 4518 at fs/btrfs/volumes.c:1071 close_fs_devices+0xbf0/0xfd0 [ 28.299638] Kernel panic - not syncing: panic_on_warn set ... [ 28.299638] [ 28.307012] CPU: 1 PID: 4518 Comm: syz-executor584 Not tainted 4.18.0-rc1+ #111 [ 28.314457] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 28.323809] Call Trace: [ 28.326403] dump_stack+0x1c9/0x2b4 [ 28.330040] ? dump_stack_print_info.cold.2+0x52/0x52 [ 28.335242] panic+0x238/0x4e7 [ 28.338441] ? add_taint.cold.5+0x16/0x16 [ 28.342596] ? __warn.cold.8+0x148/0x1ba [ 28.346658] ? __warn.cold.8+0x117/0x1ba [ 28.350727] ? close_fs_devices+0xbf0/0xfd0 [ 28.355053] __warn.cold.8+0x163/0x1ba [ 28.358931] ? close_fs_devices+0xbf0/0xfd0 [ 28.363236] report_bug+0x252/0x2d0 [ 28.366845] do_error_trap+0x1fc/0x4d0 [ 28.370766] ? trace_hardirqs_on+0xd/0x10 [ 28.374895] ? math_error+0x3f0/0x3f0 [ 28.378675] ? note_gp_changes+0x550/0x550 [ 28.382916] ? __blkdev_put+0x3f1/0x830 [ 28.386875] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 28.391700] do_invalid_op+0x1b/0x20 [ 28.395419] invalid_op+0x14/0x20 [ 28.398858] RIP: 0010:close_fs_devices+0xbf0/0xfd0 [ 28.403762] Code: 4c af fe 0f 0b e8 90 4c af fe 0f 0b 48 89 f7 e8 c6 1e ed fe e9 de f5 ff ff e8 7c 4c af fe 0f 0b e9 fd fd ff ff e8 70 4c af fe <0f> 0b e9 a8 fd ff ff 48 8b bd 58 fd ff ff e8 5d 1f ed fe e9 35 fd [ 28.422927] RSP: 0018:ffff8801ad906530 EFLAGS: 00010293 [ 28.428271] RAX: ffff8801ad078740 RBX: 0000000000000001 RCX: ffffffff82ccc076 [ 28.435519] RDX: 0000000000000000 RSI: ffffffff82ccc2d0 RDI: 0000000000000007 [ 28.442768] RBP: ffff8801ad906830 R08: ffff8801ad078740 R09: 0000000000000006 [ 28.450025] R10: ffff8801ad078740 R11: 0000000000000000 R12: ffffed0035b20cc9 [ 28.457292] R13: 1ffff10035b20cb9 R14: ffff8801ad9065c8 R15: ffff8801c967f208 [ 28.464572] ? close_fs_devices+0x996/0xfd0 [ 28.468874] ? close_fs_devices+0xbf0/0xfd0 [ 28.473179] ? btrfs_mount_root+0x1702/0x1e90 [ 28.477656] ? mount_fs+0xae/0x328 [ 28.481192] ? vfs_kern_mount.part.34+0xdc/0x4e0 [ 28.485932] ? btrfs_alloc_device+0x8e0/0x8e0 [ 28.490408] ? print_usage_bug+0xc0/0xc0 [ 28.494452] ? kasan_check_write+0x14/0x20 [ 28.498667] ? do_raw_spin_lock+0xc1/0x200 [ 28.502885] ? trace_hardirqs_off+0xd/0x10 [ 28.507103] ? _raw_spin_unlock_irqrestore+0x63/0xc0 [ 28.512192] ? mark_held_locks+0xc9/0x160 [ 28.516323] ? kfree+0x111/0x260 [ 28.519671] ? kvfree+0x61/0x70 [ 28.522932] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 28.527928] ? trace_hardirqs_on+0xd/0x10 [ 28.532067] ? kvfree+0x66/0x70 [ 28.535339] ? btrfs_free_stripe_hash_table+0x203/0x2e0 [ 28.540680] ? do_raw_write_trylock+0x1c0/0x1c0 [ 28.545331] ? percpu_counter_add_batch+0x150/0x150 [ 28.550333] btrfs_close_devices+0x29/0x150 [ 28.554638] open_ctree+0x592/0x78b6 [ 28.558334] ? lock_downgrade+0x8f0/0x8f0 [ 28.562475] ? print_usage_bug+0xc0/0xc0 [ 28.566522] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 28.571525] ? close_ctree+0xab0/0xab0 [ 28.575394] ? __lock_acquire+0x7fc/0x5020 [ 28.579613] ? debug_check_no_locks_freed+0x310/0x310 [ 28.584788] ? debug_check_no_locks_freed+0x310/0x310 [ 28.589959] ? print_usage_bug+0xc0/0xc0 [ 28.594030] ? __lock_acquire+0x7fc/0x5020 [ 28.598255] ? debug_check_no_locks_freed+0x310/0x310 [ 28.603427] ? kernel_text_address+0x79/0xf0 [ 28.607818] ? __kernel_text_address+0xd/0x40 [ 28.612294] ? unwind_get_return_address+0x61/0xa0 [ 28.617209] ? __lock_acquire+0x7fc/0x5020 [ 28.621426] ? debug_check_no_locks_freed+0x310/0x310 [ 28.626597] ? __raw_spin_lock_init+0x1c/0x100 [ 28.631173] ? graph_lock+0x170/0x170 [ 28.634964] ? find_held_lock+0x36/0x1c0 [ 28.639029] ? graph_lock+0x170/0x170 [ 28.642820] ? lock_downgrade+0x8f0/0x8f0 [ 28.646949] ? graph_lock+0x170/0x170 [ 28.650738] ? kasan_check_read+0x11/0x20 [ 28.654868] ? find_held_lock+0x36/0x1c0 [ 28.658911] ? graph_lock+0x170/0x170 [ 28.662701] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 28.668229] ? fsnotify+0xbb4/0x14e0 [ 28.671923] ? print_usage_bug+0xc0/0xc0 [ 28.675969] ? find_held_lock+0x36/0x1c0 [ 28.680030] ? graph_lock+0x170/0x170 [ 28.683830] ? lock_downgrade+0x8f0/0x8f0 [ 28.687960] ? up_read+0x110/0x110 [ 28.691485] ? __lock_is_held+0xb5/0x140 [ 28.695533] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 28.701050] ? bdi_register_va.part.10+0xe8/0x9c0 [ 28.705872] ? cgwb_kill+0x640/0x640 [ 28.709569] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 28.715085] ? bdi_init+0x41e/0x530 [ 28.718702] ? wb_init+0xa00/0xa00 [ 28.722224] ? bdi_alloc_node+0x67/0xe0 [ 28.726176] ? bdi_alloc_node+0x67/0xe0 [ 28.730132] ? rcu_read_lock_sched_held+0x108/0x120 [ 28.735132] ? kmem_cache_alloc_node_trace+0x34e/0x770 [ 28.740390] ? vsnprintf+0x20d/0x1b60 [ 28.744172] ? bdi_register_va+0x49/0x80 [ 28.748215] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 28.753733] ? super_setup_bdi_name+0x1a5/0x240 [ 28.758381] ? kill_block_super+0x100/0x100 [ 28.762694] ? vsprintf+0x40/0x40 [ 28.766137] btrfs_mount_root+0x1702/0x1e90 [ 28.770445] ? btrfs_decode_error+0x70/0x70 [ 28.774751] ? save_stack+0x43/0xd0 [ 28.778355] ? __kasan_slab_free+0x11a/0x170 [ 28.782743] ? kasan_slab_free+0xe/0x10 [ 28.786697] ? kfree+0xd9/0x260 [ 28.789959] ? mount_fs+0xae/0x328 [ 28.793479] ? vfs_kern_mount.part.34+0xdc/0x4e0 [ 28.798224] ? do_mount+0x581/0x30e0 [ 28.801918] ? ksys_mount+0x12d/0x140 [ 28.805698] ? __x64_sys_mount+0xbe/0x150 [ 28.809826] ? do_syscall_64+0x1b9/0x820 [ 28.813870] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 28.819227] ? kasan_check_read+0x11/0x20 [ 28.823358] ? do_raw_spin_unlock+0xa7/0x2f0 [ 28.827746] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 28.832310] ? do_raw_spin_lock+0xc1/0x200 [ 28.836546] mount_fs+0xae/0x328 [ 28.839895] ? debug_check_no_obj_freed+0x30b/0x595 [ 28.844892] vfs_kern_mount.part.34+0xdc/0x4e0 [ 28.849465] ? may_umount+0xb0/0xb0 [ 28.853075] ? kfree+0x111/0x260 [ 28.856433] ? btrfs_mount+0x84c/0x215e [ 28.860391] vfs_kern_mount+0x40/0x60 [ 28.864183] btrfs_mount+0x4a9/0x215e [ 28.867968] ? kasan_check_read+0x11/0x20 [ 28.872099] ? rcu_is_watching+0x8c/0x150 [ 28.876229] ? btrfs_remount+0x1710/0x1710 [ 28.880467] ? __lockdep_init_map+0x105/0x590 [ 28.884955] ? __lockdep_init_map+0x105/0x590 [ 28.889433] ? lockdep_init_map+0x9/0x10 [ 28.893474] ? __init_waitqueue_head+0x9e/0x150 [ 28.898122] ? init_wait_entry+0x1c0/0x1c0 [ 28.902348] ? memcpy+0x45/0x50 [ 28.905620] ? alloc_vfsmnt+0x779/0x9f0 [ 28.909586] ? mnt_free_id.isra.27+0x60/0x60 [ 28.913984] ? graph_lock+0x170/0x170 [ 28.917768] ? rcu_pm_notify+0xc0/0xc0 [ 28.921642] ? find_held_lock+0x36/0x1c0 [ 28.925689] ? lock_downgrade+0x8f0/0x8f0 [ 28.929821] mount_fs+0xae/0x328 [ 28.933167] ? btrfs_remount+0x1710/0x1710 [ 28.937380] ? mount_fs+0xae/0x328 [ 28.940908] ? mpi_free.cold.1+0x19/0x19 [ 28.944954] vfs_kern_mount.part.34+0xdc/0x4e0 [ 28.949527] ? may_umount+0xb0/0xb0 [ 28.953135] ? _raw_read_unlock+0x22/0x30 [ 28.957260] ? __get_fs_type+0x97/0xc0 [ 28.961140] do_mount+0x581/0x30e0 [ 28.964659] ? do_raw_spin_unlock+0xa7/0x2f0 [ 28.969066] ? copy_mount_string+0x40/0x40 [ 28.973294] ? copy_mount_options+0x5f/0x380 [ 28.977686] ? rcu_read_lock_sched_held+0x108/0x120 [ 28.982683] ? kmem_cache_alloc_trace+0x616/0x780 [ 28.987509] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 28.993039] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 28.998566] ? copy_mount_options+0x285/0x380 [ 29.003052] ksys_mount+0x12d/0x140 [ 29.006664] __x64_sys_mount+0xbe/0x150 [ 29.010620] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 29.015618] do_syscall_64+0x1b9/0x820 [ 29.019497] ? syscall_return_slowpath+0x5e0/0x5e0 [ 29.024408] ? syscall_return_slowpath+0x31d/0x5e0 [ 29.029334] ? entry_SYSCALL_64_after_hwframe+0x59/0xbe [ 29.034681] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 29.039508] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 29.044675] RIP: 0033:0x446fea [ 29.047840] Code: b8 08 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 1d aa fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 fa a9 fb ff c3 66 0f 1f 84 00 00 00 00 00 [ 29.067031] RSP: 002b:00007fffe8a196c8 EFLAGS: 00000293 ORIG_RAX: 00000000000000a5 [ 29.074727] RAX: ffffffffffffffda RBX: 00007fffe8a196e0 RCX: 0000000000446fea [ 29.081976] RDX: 00007fffe8a196e0 RSI: 00000000200000c0 RDI: 00007fffe8a19700 [ 29.089235] RBP: 0000000000000001 R08: 00007fffe8a19740 R09: 000000000000000a [ 29.096482] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000015 [ 29.103730] R13: 0000000000000016 R14: 0000000000000000 R15: 0000000000000001 [ 29.111657] Dumping ftrace buffer: [ 29.115298] (ftrace buffer empty) [ 29.119003] Kernel Offset: disabled [ 29.122610] Rebooting in 86400 seconds..