loop0: detected capacity change from 0 to 32768
bcachefs (/dev/loop0): error reading default superblock: checksum error, type crc32c_nonzero: got ae975d87 should be 29d2fb78
bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=errors=continue,compression=lz4,nojournal_transaction_names
bcachefs (loop0): recovering from clean shutdown, journal seq 7
bcachefs (loop0): Doing compatible version upgrade from 1.7: mi_btree_bitmap to 1.12: rebalance_work_acct_fix
  running recovery passes: check_allocations
invalid bkey u64s 11 type alloc_v4 360287970189639680:14:0 len 0 ver 0: 
  gen 0 oldest_gen 0 data_type journal
  journal_seq       1
  need_discard      1
  need_inc_gen      1
  dirty_sectors     256
  stripe_sectors    0
  cached_sectors    0
  stripe            67108864
  stripe_redundancy 0
  io_time[READ]     1
  io_time[WRITE]    1
  fragmentation     0
  bp_start          8
  invalid data type (got 2 should be 7): delete?, fixing
bcachefs (loop0): accounting_read... done
bcachefs (loop0): alloc_read... done
bcachefs (loop0): stripes_read... done
bcachefs (loop0): snapshots_read... done
bcachefs (loop0): check_allocations...
btree ptr not marked in member info btree allocated bitmap
  u64s 11 type btree_ptr_v2 SPOS_MAX len 0 ver 0: seq 75277f57b0c8c24 written 32 min_key POS_MIN durability: 1 ptr: 0:26:0 gen 0, fixing
bucket 0:26 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 75277f57b0c8c24 written 32 min_key POS_MIN durability: 1 ptr: 0:26:0 gen 0, fixing
btree ptr not marked in member info btree allocated bitmap
  u64s 11 type btree_ptr_v2 SPOS_MAX len 0 ver 0: seq 19bc58a6c09b6540 written 24 min_key POS_MIN durability: 1 ptr: 0:38:0 gen 0, fixing
bucket 0:38 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 19bc58a6c09b6540 written 24 min_key POS_MIN durability: 1 ptr: 0:38:0 gen 0, fixing
btree ptr not marked in member info btree allocated bitmap
  u64s 11 type btree_ptr_v2 SPOS_MAX len 0 ver 0: seq c18f4a4face03c6 written 24 min_key POS_MIN durability: 1 ptr: 0:41:0 gen 0, fixing
bucket 0:41 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 c18f4a4face03c6 written 24 min_key POS_MIN durability: 1 ptr: 0:41:0 gen 0, fixing
pointer to missing indirect extent
  u64s 7 type reflink_p POS_MIN len 0 ver 0: idx 18446744069414584320 front_pad 4096 back_pad 0
  missing range 18446744069414580224-18446744069414584320, fixing
------------[ cut here ]------------
kernel BUG at fs/bcachefs/btree_iter.c:268!
Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 5110 Comm: syz.0.0 Not tainted 6.11.0-syzkaller-05319-g4a39ac5b7d62 #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_iter_verify_entry_exit+0x51b/0x550 fs/bcachefs/btree_iter.c:267
Code: c1 fd ff ff 44 89 e1 80 e1 07 38 c1 0f 8c c6 fd ff ff be 08 00 00 00 4c 89 e7 e8 30 01 e7 fd e9 b4 fd ff ff e8 b6 7c 7f fd 90 <0f> 0b e8 ae 7c 7f fd 90 0f 0b e8 a6 7c 7f fd 90 0f 0b e8 9e 7c 7f
RSP: 0018:ffffc9000b9cd958 EFLAGS: 00010246
RAX: ffffffff8414624a RBX: 0000000000000992 RCX: 0000000000040000
RDX: ffffc9000b539000 RSI: 000000000003ffff RDI: 0000000000040000
RBP: 0000000000000000 R08: ffffffff84145db0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffffc9000b9cdfd0
R13: 0000000000000000 R14: ffffc9000b9cdfe0 R15: dffffc0000000000
FS:  00007fbd2cfd46c0(0000) GS:ffff88801fe00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000561654343068 CR3: 000000003436a000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 bch2_btree_iter_peek_upto+0x600/0x6f90 fs/bcachefs/btree_iter.c:2281
 bch2_trans_update_extent fs/bcachefs/btree_update.c:299 [inline]
 bch2_trans_update+0x5f9/0x2550 fs/bcachefs/btree_update.c:514
 bch2_btree_insert_trans+0x26f/0x550 fs/bcachefs/btree_update.c:646
 gc_trigger_reflink_p_segment fs/bcachefs/reflink.c:195 [inline]
 __trigger_reflink_p+0x2a08/0x2ec0 fs/bcachefs/reflink.c:234
 bch2_trigger_reflink_p+0x297/0x380 fs/bcachefs/reflink.c:253
 bch2_key_trigger fs/bcachefs/bkey_methods.h:87 [inline]
 bch2_gc_mark_key+0x6b5/0x10e0 fs/bcachefs/btree_gc.c:633
 bch2_gc_btree fs/bcachefs/btree_gc.c:669 [inline]
 bch2_gc_btrees fs/bcachefs/btree_gc.c:728 [inline]
 bch2_check_allocations+0x1d1b/0x7870 fs/bcachefs/btree_gc.c:1135
 bch2_run_recovery_pass+0xf0/0x1e0 fs/bcachefs/recovery_passes.c:183
 bch2_run_recovery_passes+0x19e/0x820 fs/bcachefs/recovery_passes.c:230
 bch2_fs_recovery+0x24f9/0x38b0 fs/bcachefs/recovery.c:859
 bch2_fs_start+0x356/0x5b0 fs/bcachefs/super.c:1036
 bch2_fs_get_tree+0xd61/0x1700 fs/bcachefs/fs.c:1956
 vfs_get_tree+0x90/0x2b0 fs/super.c:1800
 do_new_mount+0x2be/0xb40 fs/namespace.c:3507
 do_mount fs/namespace.c:3847 [inline]
 __do_sys_mount fs/namespace.c:4055 [inline]
 __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:4032
 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: 0033:0x7fbd2c17f69a
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:00007fbd2cfd3e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fbd2cfd3ef0 RCX: 00007fbd2c17f69a
RDX: 0000000020005d80 RSI: 0000000020000000 RDI: 00007fbd2cfd3eb0
RBP: 0000000020005d80 R08: 00007fbd2cfd3ef0 R09: 0000000000000008
R10: 0000000000000008 R11: 0000000000000246 R12: 0000000020000000
R13: 00007fbd2cfd3eb0 R14: 0000000000005d99 R15: 0000000020000280
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:bch2_btree_iter_verify_entry_exit+0x51b/0x550 fs/bcachefs/btree_iter.c:267
Code: c1 fd ff ff 44 89 e1 80 e1 07 38 c1 0f 8c c6 fd ff ff be 08 00 00 00 4c 89 e7 e8 30 01 e7 fd e9 b4 fd ff ff e8 b6 7c 7f fd 90 <0f> 0b e8 ae 7c 7f fd 90 0f 0b e8 a6 7c 7f fd 90 0f 0b e8 9e 7c 7f
RSP: 0018:ffffc9000b9cd958 EFLAGS: 00010246
RAX: ffffffff8414624a RBX: 0000000000000992 RCX: 0000000000040000
RDX: ffffc9000b539000 RSI: 000000000003ffff RDI: 0000000000040000
RBP: 0000000000000000 R08: ffffffff84145db0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffffc9000b9cdfd0
R13: 0000000000000000 R14: ffffc9000b9cdfe0 R15: dffffc0000000000
FS:  00007fbd2cfd46c0(0000) GS:ffff88801fe00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000561654343068 CR3: 000000003436a000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400