loop0: detected capacity change from 0 to 32768
bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=none,compression=lz4,usrquota,no_splitbrain_check,fsck,fix_errors=no,norecovery,nojournal_transaction_names
bcachefs (loop0): recovering from clean shutdown, journal seq 10
bcachefs (loop0): Version upgrade required:
Version upgrade from 0.24: unwritten_extents to 1.7: mi_btree_bitmap incomplete
Doing incompatible version upgrade from 0.24: unwritten_extents to 1.20: directory_size
  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
bcachefs (loop0): error validating btree node on loop0 at btree inodes level 0/0
  u64s 11 type btree_ptr_v2 SPOS_MAX len 0 ver 0: seq 7589ab5e0c11cc7a written 24 min_key POS_MIN durability: 1 ptr: 0:38:0 gen 0  
  node offset 0/24 bset u64s 0: incorrect max key U64_MAX:18445055223849287679:U32_MAX
bcachefs (loop0): running explicit recovery pass check_topology (2), currently at recovery_pass_empty (0)
bcachefs (loop0): flagging btree inodes lost data
bcachefs (loop0): running explicit recovery pass scan_for_btree_nodes (1), currently at recovery_pass_empty (0)
error reading btree root btree=inodes level=0: btree_node_read_error, fixing
------------[ cut here ]------------
kernel BUG at fs/bcachefs/btree_io.c:1783!
Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 5314 Comm: syz.0.0 Not tainted 6.13.0-syzkaller-04541-gdf60eac9efe8 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:__bch2_btree_root_read fs/bcachefs/btree_io.c:1783 [inline]
RIP: 0010:bch2_btree_root_read+0x78d/0x7a0 fs/bcachefs/btree_io.c:1811
Code: ff 44 89 f1 80 e1 07 38 c1 0f 8c 98 fa ff ff 4c 89 f7 e8 66 26 e8 fd e9 8b fa ff ff e8 ec a0 81 fd 90 0f 0b e8 e4 a0 81 fd 90 <0f> 0b e8 9c 11 b6 07 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90
RSP: 0018:ffffc9000d4cf280 EFLAGS: 00010287
RAX: ffffffff841ddadc RBX: 00000000ffffffef RCX: 0000000000100000
RDX: ffffc9000edd2000 RSI: 0000000000038ed3 RDI: 0000000000038ed4
RBP: ffffc9000d4cf3b0 R08: ffffffff841dd921 R09: 1ffff92001a99e38
R10: dffffc0000000000 R11: fffff52001a99e39 R12: ffff888041177800
R13: 000000000001a001 R14: ffff888054481a98 R15: 0000000000000000
FS:  00007fa05a98a6c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000563cbc50e758 CR3: 0000000040b26000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 read_btree_roots+0x3d3/0xa70 fs/bcachefs/recovery.c:582
 bch2_fs_recovery+0x260f/0x3de0 fs/bcachefs/recovery.c:929
 bch2_fs_start+0x37c/0x610 fs/bcachefs/super.c:1030
 bch2_fs_get_tree+0xd8d/0x1740 fs/bcachefs/fs.c:2203
 vfs_get_tree+0x90/0x2b0 fs/super.c:1814
 do_new_mount+0x2be/0xb40 fs/namespace.c:3560
 do_mount fs/namespace.c:3900 [inline]
 __do_sys_mount fs/namespace.c:4111 [inline]
 __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:4088
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa059b874ca
Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fa05a989e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fa05a989ef0 RCX: 00007fa059b874ca
RDX: 00000000200058c0 RSI: 0000000020000000 RDI: 00007fa05a989eb0
RBP: 00000000200058c0 R08: 00007fa05a989ef0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000020000000
R13: 00007fa05a989eb0 R14: 000000000000592b R15: 0000000020000380
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__bch2_btree_root_read fs/bcachefs/btree_io.c:1783 [inline]
RIP: 0010:bch2_btree_root_read+0x78d/0x7a0 fs/bcachefs/btree_io.c:1811
Code: ff 44 89 f1 80 e1 07 38 c1 0f 8c 98 fa ff ff 4c 89 f7 e8 66 26 e8 fd e9 8b fa ff ff e8 ec a0 81 fd 90 0f 0b e8 e4 a0 81 fd 90 <0f> 0b e8 9c 11 b6 07 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90
RSP: 0018:ffffc9000d4cf280 EFLAGS: 00010287
RAX: ffffffff841ddadc RBX: 00000000ffffffef RCX: 0000000000100000
RDX: ffffc9000edd2000 RSI: 0000000000038ed3 RDI: 0000000000038ed4
RBP: ffffc9000d4cf3b0 R08: ffffffff841dd921 R09: 1ffff92001a99e38
R10: dffffc0000000000 R11: fffff52001a99e39 R12: ffff888041177800
R13: 000000000001a001 R14: ffff888054481a98 R15: 0000000000000000
FS:  00007fa05a98a6c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055f632ed30b8 CR3: 0000000040b26000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400