bcachefs (loop0): Fixed errors, running fsck a second time to verify fs is clean
bcachefs (loop0): scanning for old btree nodes: min_version 0.24: unwritten_extents
bcachefs (loop0): going read-write
------------[ cut here ]------------
kernel BUG at fs/bcachefs/btree_iter.c:633!
Internal error: Oops - BUG: 00000000f2000800 [#1]  SMP
Modules linked in:
CPU: 0 UID: 0 PID: 7148 Comm: syz.0.72 Not tainted syzkaller #0 PREEMPT 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025
pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--)
pc : bch2_btree_path_level_init+0x804/0x830 fs/bcachefs/btree_iter.c:114
lr : btree_path_pos_in_node fs/bcachefs/btree_iter.c:114 [inline]
lr : bch2_btree_path_level_init+0x804/0x830 fs/bcachefs/btree_iter.c:633
sp : ffff8000a39a6840
x29: ffff8000a39a6850 x28: dfff800000000000 x27: 0000000400000000
x26: 0000000000000000 x25: 0000000000000000 x24: 0000000000000000
x23: 0000000000000000 x22: 0000000000000000 x21: ffff0000f6df82d8
x20: ffff0000f6df82dc x19: ffff0000cba78800 x18: 00000000ffffffff
x17: ffff80009353a000 x16: ffff80008b021140 x15: ffff700014734cf4
x14: 1ffff00014734cf4 x13: 0000000000000004 x12: ffffffffffffffff
x11: 0000000000080000 x10: 000000000007ffff x9 : ffff8000a52ea000
x8 : 0000000000080000 x7 : ffff8000828c3158 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000001
x2 : ffff0000cba78800 x1 : 0000000400000000 x0 : 0000000000000000
Call trace:
 btree_path_pos_in_node fs/bcachefs/btree_iter.c:114 [inline] (P)
 bch2_btree_path_level_init+0x804/0x830 fs/bcachefs/btree_iter.c:633 (P)
 btree_path_lock_root fs/bcachefs/btree_iter.c:787 [inline]
 bch2_btree_path_traverse_one+0xa18/0x1f0c fs/bcachefs/btree_iter.c:1203
 bch2_btree_path_traverse fs/bcachefs/btree_iter.h:250 [inline]
 bch2_btree_iter_peek_node+0x188/0x1264 fs/bcachefs/btree_iter.c:1919
 bch2_move_btree+0x320/0xa84 fs/bcachefs/move.c:1131
 bch2_scan_old_btree_nodes+0x80/0x21c fs/bcachefs/move.c:1266
 bch2_fs_recovery+0x2a0c/0x2fb4 fs/bcachefs/recovery.c:1128
 bch2_fs_start+0x940/0xbec fs/bcachefs/super.c:1213
 bch2_fs_get_tree+0x880/0x107c fs/bcachefs/fs.c:2488
 vfs_get_tree+0x90/0x28c fs/super.c:1815
 do_new_mount+0x278/0x7f4 fs/namespace.c:3808
 path_mount+0x5b4/0xde0 fs/namespace.c:4123
 do_mount fs/namespace.c:4136 [inline]
 __do_sys_mount fs/namespace.c:4347 [inline]
 __se_sys_mount fs/namespace.c:4324 [inline]
 __arm64_sys_mount+0x3e8/0x468 fs/namespace.c:4324
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x98/0x254 arch/arm64/kernel/syscall.c:49
 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151
 el0_svc+0x5c/0x254 arch/arm64/kernel/entry-common.c:744
 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:763
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596
Code: d4210000 977a7878 d4210000 977a7876 (d4210000) 
---[ end trace 0000000000000000 ]---