while marking u64s 11 type btree_ptr_v2 SPOS_MAX len 0 ver 0: seq 28f61e078e70b95c written 16 min_key POS_MIN durability: 1 ptr: 0:28:0 gen 0, fixing
bcachefs (loop0): bucket 0:29 data type btree ptr gen 0 missing in alloc btree
  while marking u64s 11 type btree_ptr_v2 SPOS_MAX len 0 ver 0: seq e81e1ed936acf3df written 32 min_key POS_MIN durability: 1 ptr: 0:29:0 gen 0, fixing
------------[ cut here ]------------
kernel BUG at fs/bcachefs/btree_iter.c:633!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 1 UID: 0 PID: 5845 Comm: syz-executor365 Not tainted 6.15.0-next-20250530-syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:bch2_btree_path_level_init+0x9f1/0xa20 fs/bcachefs/btree_iter.c:633
Code: 89 f7 e8 52 48 02 fe e9 91 fb ff ff e8 78 c5 9e fd 90 0f 0b e8 70 c5 9e fd 90 0f 0b e8 68 c5 9e fd 90 0f 0b e8 60 c5 9e fd 90 <0f> 0b e8 58 c5 9e fd 90 0f 0b e8 50 c5 9e fd 90 0f 0b e8 48 c5 9e
RSP: 0018:ffffc9000443e678 EFLAGS: 00010293
RAX: ffffffff84219a50 RBX: ffff888077590360 RCX: ffff88802ee49e00
RDX: 0000000000000000 RSI: fffffffffffa0000 RDI: fffffffffff9ffff
RBP: ffff8880283ac9a7 R08: 0000000000000001 R09: 0000000000000000
R10: dffffc0000000000 R11: fffff52000887cc4 R12: fffffffffff9ffff
R13: fffffffffffa0000 R14: dffffc0000000000 R15: ffffffffffffffff
FS:  000055555eb13380(0000) GS:ffff888125d53000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055b3063eca00 CR3: 0000000077440000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 btree_path_lock_root fs/bcachefs/btree_iter.c:787 [inline]
 bch2_btree_path_traverse_one+0xdab/0x2160 fs/bcachefs/btree_iter.c:1203
 bch2_btree_path_traverse fs/bcachefs/btree_iter.h:250 [inline]
 __bch2_btree_iter_peek fs/bcachefs/btree_iter.c:2262 [inline]
 bch2_btree_iter_peek_max+0x988/0x5290 fs/bcachefs/btree_iter.c:2365
 bch2_btree_iter_peek_max_type fs/bcachefs/btree_iter.h:743 [inline]
 bch2_gc_btree fs/bcachefs/btree_gc.c:691 [inline]
 bch2_gc_btrees fs/bcachefs/btree_gc.c:754 [inline]
 bch2_check_allocations+0x1200/0x57a0 fs/bcachefs/btree_gc.c:1056
 bch2_run_recovery_pass fs/bcachefs/recovery_passes.c:417 [inline]
 __bch2_run_recovery_passes+0x394/0x1110 fs/bcachefs/recovery_passes.c:472
 bch2_run_recovery_passes+0x184/0x210 fs/bcachefs/recovery_passes.c:543
 bch2_fs_recovery+0x2700/0x3a80 fs/bcachefs/recovery.c:974
 bch2_fs_start+0xa85/0xd80 fs/bcachefs/super.c:1208
 bch2_fs_get_tree+0xbfc/0x15f0 fs/bcachefs/fs.c:2483
 vfs_get_tree+0x8f/0x2b0 fs/super.c:1802
 do_new_mount+0x24a/0xa40 fs/namespace.c:3856
 do_mount fs/namespace.c:4193 [inline]
 __do_sys_mount fs/namespace.c:4404 [inline]
 __se_sys_mount+0x317/0x410 fs/namespace.c:4381
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fe298e4f0aa
Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 5e 04 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffef0dc1d18 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007ffef0dc1d30 RCX: 00007fe298e4f0aa
RDX: 0000200000000040 RSI: 0000200000000000 RDI: 00007ffef0dc1d30
RBP: 0000200000000000 R08: 00007ffef0dc1d70 R09: 0000000000005ad7
R10: 0000000000800000 R11: 0000000000000282 R12: 0000200000000040
R13: 00007ffef0dc1d70 R14: 0000000000000003 R15: 0000000000800000
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:bch2_btree_path_level_init+0x9f1/0xa20 fs/bcachefs/btree_iter.c:633
Code: 89 f7 e8 52 48 02 fe e9 91 fb ff ff e8 78 c5 9e fd 90 0f 0b e8 70 c5 9e fd 90 0f 0b e8 68 c5 9e fd 90 0f 0b e8 60 c5 9e fd 90 <0f> 0b e8 58 c5 9e fd 90 0f 0b e8 50 c5 9e fd 90 0f 0b e8 48 c5 9e
RSP: 0018:ffffc9000443e678 EFLAGS: 00010293
RAX: ffffffff84219a50 RBX: ffff888077590360 RCX: ffff88802ee49e00
RDX: 0000000000000000 RSI: fffffffffffa0000 RDI: fffffffffff9ffff
RBP: ffff8880283ac9a7 R08: 0000000000000001 R09: 0000000000000000
R10: dffffc0000000000 R11: fffff52000887cc4 R12: fffffffffff9ffff
R13: fffffffffffa0000 R14: dffffc0000000000 R15: ffffffffffffffff
FS:  000055555eb13380(0000) GS:ffff888125c53000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007feba718dd30 CR3: 0000000077440000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400