loop0: detected capacity change from 0 to 32768
bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=errors=continue,metadata_checksum=none,data_checksum=none,compression=lz4,gc_reserve_bytes=512 GiB,norecovery,nojournal_transaction_names,no_data_io
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 1.13: inode_has_child_snapshots
  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
invalid bkey u64s 12 type alloc_v4 0:28:0 len 0 ver 0: 
  gen 0 oldest_gen 0 data_type btree
  journal_seq       6
  need_discard      1
  need_inc_gen      1
  dirty_sectors     0
  stripe_sectors    0
  cached_sectors    0
  stripe            0
  stripe_redundancy 0
  io_time[READ]     1
  io_time[WRITE]    768
  fragmentation     0
  bp_start          8
  invalid data type (got 3 should be 9): delete?, fixing
bcachefs (loop0): accounting_read... done
bcachefs (loop0): alloc_read...
------------[ cut here ]------------
kernel BUG at fs/bcachefs/btree_iter.c:631!
Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 5323 Comm: syz.0.0 Not tainted 6.12.0-rc6-syzkaller-00192-gf1dce1f09380 #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_path_level_init+0x9ca/0x9f0 fs/bcachefs/btree_iter.c:631
Code: f5 fa ff ff e8 47 24 7c fd 90 0f 0b e8 3f 24 7c fd 90 0f 0b e8 37 24 7c fd 90 0f 0b e8 2f 24 7c fd 90 0f 0b e8 27 24 7c fd 90 <0f> 0b e8 1f 24 7c fd 90 0f 0b e8 17 24 7c fd 90 0f 0b e8 0f 24 7c
RSP: 0018:ffffc9000d1268a0 EFLAGS: 00010293
RAX: ffffffff8418b639 RBX: 0000000000000000 RCX: ffff888000bf0000
RDX: 0000000000000000 RSI: 0000000000000900 RDI: 0000000000000000
RBP: dffffc0000000000 R08: ffffffff8418ae8c R09: 0000000000000000
R10: dffffc0000000000 R11: fffffbfff203a146 R12: ffff888043a14000
R13: 0000000000000000 R14: 0000000000000000 R15: ffff888052aa0033
FS:  00007f6a426ef6c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000556faddc6d28 CR3: 000000004366a000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 btree_path_lock_root fs/bcachefs/btree_iter.c:769 [inline]
 bch2_btree_path_traverse_one+0x10de/0x2940 fs/bcachefs/btree_iter.c:1183
 bch2_btree_path_traverse fs/bcachefs/btree_iter.h:247 [inline]
 __bch2_btree_iter_peek fs/bcachefs/btree_iter.c:2210 [inline]
 bch2_btree_iter_peek_upto+0xb58/0x70e0 fs/bcachefs/btree_iter.c:2310
 bch2_btree_iter_peek_upto_type fs/bcachefs/btree_iter.h:685 [inline]
 bch2_alloc_read+0x1598/0x2c30 fs/bcachefs/alloc_background.c:630
 bch2_run_recovery_pass+0xf0/0x1e0 fs/bcachefs/recovery_passes.c:185
 bch2_run_recovery_passes+0x3a7/0x880 fs/bcachefs/recovery_passes.c:238
 bch2_fs_recovery+0x25cc/0x39d0 fs/bcachefs/recovery.c:861
 bch2_fs_start+0x356/0x5b0 fs/bcachefs/super.c:1036
 bch2_fs_get_tree+0xd68/0x1710 fs/bcachefs/fs.c:2170
 vfs_get_tree+0x90/0x2b0 fs/super.c:1814
 do_new_mount+0x2be/0xb40 fs/namespace.c:3507
 do_mount fs/namespace.c:3847 [inline]
 __do_sys_mount fs/namespace.c:4057 [inline]
 __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:4034
 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: 0033:0x7f6a4197feba
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:00007f6a426eee68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f6a426eeef0 RCX: 00007f6a4197feba
RDX: 0000000020000000 RSI: 0000000020005900 RDI: 00007f6a426eeeb0
RBP: 0000000020000000 R08: 00007f6a426eeef0 R09: 0000000000010000
R10: 0000000000010000 R11: 0000000000000246 R12: 0000000020005900
R13: 00007f6a426eeeb0 R14: 0000000000005907 R15: 0000000020000100
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:bch2_btree_path_level_init+0x9ca/0x9f0 fs/bcachefs/btree_iter.c:631
Code: f5 fa ff ff e8 47 24 7c fd 90 0f 0b e8 3f 24 7c fd 90 0f 0b e8 37 24 7c fd 90 0f 0b e8 2f 24 7c fd 90 0f 0b e8 27 24 7c fd 90 <0f> 0b e8 1f 24 7c fd 90 0f 0b e8 17 24 7c fd 90 0f 0b e8 0f 24 7c
RSP: 0018:ffffc9000d1268a0 EFLAGS: 00010293
RAX: ffffffff8418b639 RBX: 0000000000000000 RCX: ffff888000bf0000
RDX: 0000000000000000 RSI: 0000000000000900 RDI: 0000000000000000
RBP: dffffc0000000000 R08: ffffffff8418ae8c R09: 0000000000000000
R10: dffffc0000000000 R11: fffffbfff203a146 R12: ffff888043a14000
R13: 0000000000000000 R14: 0000000000000000 R15: ffff888052aa0033
FS:  00007f6a426ef6c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000560e08035078 CR3: 000000004366a000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400