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 node offset 16/32 bset u64s 13 bset byte offset 120: key extends past end of bset, exiting bcachefs (loop0): Unable to continue, halting bcachefs (loop0): flagging btree freespace lost data error reading btree root btree=freespace level=0: btree_node_read_error, fixing bcachefs (loop0): check_topology... done bcachefs (loop0): accounting_read... done bcachefs (loop0): alloc_read... done bcachefs (loop0): stripes_read... done bcachefs (loop0): snapshots_read... done bcachefs (loop0): check_allocations... bucket 0:34 data type user ptr gen 0 missing in alloc btree while marking u64s 7 type extent 4099:8:U32_MAX len 8 ver 0: durability: 1 crc: c_size 8 size 8 offset 0 nonce 0 csum none 0:0 compress incompressible ptr: 0:34:0 gen 0, fixing bucket 0:27 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 c6c25c03258c59c5 written 16 min_key POS_MIN durability: 1 ptr: 0:27:0 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 7589ab5e0c11cc7a written 24 min_key POS_MIN durability: 1 ptr: 0:38:0 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 9aa2895aefce4bdf written 24 min_key POS_MIN durability: 1 ptr: 0:41:0 gen 0, fixing bucket 0:31 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 2285c34bed0abe32 written 16 min_key POS_MIN durability: 1 ptr: 0:31:0 gen 0, fixing bucket 0:35 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 c0bef60d07ceb940 written 16 min_key POS_MIN durability: 1 ptr: 0:35:0 gen 0, fixing bucket 0:32 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 ebb8d5a9e3463bdb written 16 min_key POS_MIN durability: 1 ptr: 0:32:0 gen 0, fixing bucket 0:28 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 28f61e078e70b95c written 16 min_key POS_MIN durability: 1 ptr: 0:28:0 gen 0, fixing bucket 0:37 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 4a8b0fa43a9980a6 written 24 min_key POS_MIN durability: 1 ptr: 0:37:0 gen 0, fixing bucket 0:42 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 1db8f60c84bb244c written 8 min_key POS_MIN durability: 1 ptr: 0:42:0 gen 0, fixing done bcachefs (loop0): going read-write bcachefs (loop0): journal_replay... done bcachefs (loop0): check_alloc_info... hole in alloc btree missing in freespace btree device 0 buckets 30-31, fixing hole in alloc btree missing in freespace btree device 0 buckets 33-34, fixing hole in alloc btree missing in freespace btree device 0 buckets 39-41, fixing hole in alloc btree missing in freespace btree device 0 buckets 43-120, fixing done bcachefs (loop0): check_lrus... done bcachefs (loop0): check_btree_backpointers... done bcachefs (loop0): check_backpointers_to_extents... done bcachefs (loop0): check_extents_to_backpointers... ------------[ cut here ]------------ kernel BUG at fs/bcachefs/backpointers.c:841! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5328 Comm: syz.0.0 Not tainted 6.14.0-syzkaller-01103-g2df0c02dab82 #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:data_type_to_alloc_counter fs/bcachefs/backpointers.c:841 [inline] RIP: 0010:check_bucket_backpointer_mismatch fs/bcachefs/backpointers.c:892 [inline] RIP: 0010:bch2_check_extents_to_backpointers+0x744b/0x7490 fs/bcachefs/backpointers.c:1087 Code: fd 90 0f 0b e8 c6 ef 7a fd 90 0f 0b e8 be ef 7a fd 90 0f 0b e8 b6 ef 7a fd 90 0f 0b e8 ae ef 7a fd 90 0f 0b e8 a6 ef 7a fd 90 <0f> 0b e8 9e ef 7a fd 90 0f 0b e8 96 ef 7a fd 90 0f 0b e8 8e ef 7a RSP: 0018:ffffc9000d4f6480 EFLAGS: 00010293 RAX: ffffffff8448732a RBX: 0000000000000000 RCX: ffff8880003d4880 RDX: 0000000000000000 RSI: ffffffff8f141290 RDI: 0000000000000000 RBP: ffffc9000d4f7428 R08: 0000000000000001 R09: ffffffff8448183c R10: 0000000000000004 R11: ffff8880003d4880 R12: ffffc9000d4f70e0 R13: ffffc9000d4f72f0 R14: ffff8880571c02b2 R15: 0000000000000100 FS: 00007f0f8fa736c0(0000) GS:ffff88808c824000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000558003003008 CR3: 00000000422aa000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: bch2_run_recovery_pass+0xf0/0x1e0 fs/bcachefs/recovery_passes.c:226 bch2_run_recovery_passes+0x2ad/0xa90 fs/bcachefs/recovery_passes.c:291 bch2_fs_recovery+0x28f7/0x3de0 fs/bcachefs/recovery.c:936 bch2_fs_start+0x37c/0x610 fs/bcachefs/super.c:1041 bch2_fs_get_tree+0xdc0/0x17b0 fs/bcachefs/fs.c:2203 vfs_get_tree+0x90/0x2b0 fs/super.c:1759 do_new_mount+0x2cf/0xb70 fs/namespace.c:3878 do_mount fs/namespace.c:4218 [inline] __do_sys_mount fs/namespace.c:4429 [inline] __se_sys_mount+0x38c/0x400 fs/namespace.c:4406 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f0f8eb8e90a 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:00007f0f8fa72e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f0f8fa72ef0 RCX: 00007f0f8eb8e90a RDX: 00002000000000c0 RSI: 0000200000000000 RDI: 00007f0f8fa72eb0 RBP: 00002000000000c0 R08: 00007f0f8fa72ef0 R09: 0000000000800044 R10: 0000000000800044 R11: 0000000000000246 R12: 0000200000000000 R13: 00007f0f8fa72eb0 R14: 0000000000005943 R15: 0000200000005cc0 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:data_type_to_alloc_counter fs/bcachefs/backpointers.c:841 [inline] RIP: 0010:check_bucket_backpointer_mismatch fs/bcachefs/backpointers.c:892 [inline] RIP: 0010:bch2_check_extents_to_backpointers+0x744b/0x7490 fs/bcachefs/backpointers.c:1087 Code: fd 90 0f 0b e8 c6 ef 7a fd 90 0f 0b e8 be ef 7a fd 90 0f 0b e8 b6 ef 7a fd 90 0f 0b e8 ae ef 7a fd 90 0f 0b e8 a6 ef 7a fd 90 <0f> 0b e8 9e ef 7a fd 90 0f 0b e8 96 ef 7a fd 90 0f 0b e8 8e ef 7a RSP: 0018:ffffc9000d4f6480 EFLAGS: 00010293 RAX: ffffffff8448732a RBX: 0000000000000000 RCX: ffff8880003d4880 RDX: 0000000000000000 RSI: ffffffff8f141290 RDI: 0000000000000000 RBP: ffffc9000d4f7428 R08: 0000000000000001 R09: ffffffff8448183c R10: 0000000000000004 R11: ffff8880003d4880 R12: ffffc9000d4f70e0 R13: ffffc9000d4f72f0 R14: ffff8880571c02b2 R15: 0000000000000100 FS: 00007f0f8fa736c0(0000) GS:ffff88808c824000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000558003003008 CR3: 00000000422aa000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400