loop0: detected capacity change from 0 to 32768 bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=none,compression=lz4,degraded,no_splitbrain_check,fsck,norecovery,nojournal_transaction_names,reconstruct_alloc,nocow 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 bcachefs (loop0): dropping and reconstructing all alloc info invalid bkey u64s 18 type inode_v3 0:4100:U32_MAX len 0 ver 0: (unpack error) invalid variable length fields: delete?, 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... ------------[ cut here ]------------ kernel BUG at fs/bcachefs/bkey.c:130! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5115 Comm: syz.0.0 Not tainted 6.12.0-rc4-syzkaller-00047-gc2ee9f594da8 #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:pack_state_finish fs/bcachefs/bkey.c:130 [inline] RIP: 0010:bch2_bkey_pack_pos_lossy+0x1956/0x1990 fs/bcachefs/bkey.c:525 Code: fd 90 0f 0b e8 5b b8 83 fd 90 0f 0b e8 53 b8 83 fd 90 0f 0b e8 4b b8 83 fd 90 0f 0b e8 43 b8 83 fd 90 0f 0b e8 3b b8 83 fd 90 <0f> 0b e8 33 47 b5 07 e8 2e b8 83 fd 90 0f 0b e8 26 b8 83 fd 90 0f RSP: 0018:ffffc9000ae65d20 EFLAGS: 00010287 RAX: ffffffff84111fa5 RBX: ffffc9080ae660b8 RCX: 0000000000040000 RDX: ffffc9000b642000 RSI: 000000000003fd35 RDI: 000000000003fd36 RBP: ffffc9000ae65f58 R08: ffffffff84110ea6 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: dffffc0000000000 R13: ffff8880500160c0 R14: 0000000000000000 R15: ffffc9000ae660c0 FS: 00007ff2adab26c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000560a26db4038 CR3: 000000003e47a000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: bch2_btree_node_iter_init+0x894/0x4280 fs/bcachefs/bset.c:1313 __btree_path_level_init fs/bcachefs/btree_iter.c:615 [inline] bch2_btree_path_level_init+0x4d2/0x9f0 fs/bcachefs/btree_iter.c:635 btree_path_lock_root fs/bcachefs/btree_iter.c:769 [inline] bch2_btree_path_traverse_one+0x10de/0x2940 fs/bcachefs/btree_iter.c:1170 bch2_btree_path_traverse fs/bcachefs/btree_iter.h:247 [inline] __bch2_btree_iter_peek fs/bcachefs/btree_iter.c:2197 [inline] bch2_btree_iter_peek_upto+0xb58/0x70e0 fs/bcachefs/btree_iter.c:2297 bch2_btree_iter_peek_upto_type fs/bcachefs/btree_iter.h:685 [inline] bch2_gc_btree fs/bcachefs/btree_gc.c:670 [inline] bch2_gc_btrees fs/bcachefs/btree_gc.c:729 [inline] bch2_check_allocations+0x1a8b/0x6e80 fs/bcachefs/btree_gc.c:1123 bch2_run_recovery_pass+0xf0/0x1e0 fs/bcachefs/recovery_passes.c:185 bch2_run_recovery_passes+0x387/0x870 fs/bcachefs/recovery_passes.c:232 bch2_fs_recovery+0x25cc/0x39c0 fs/bcachefs/recovery.c:862 bch2_fs_start+0x356/0x5b0 fs/bcachefs/super.c:1036 bch2_fs_get_tree+0xd68/0x1710 fs/bcachefs/fs.c:2174 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: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: 0033:0x7ff2acd7f79a 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:00007ff2adab1e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007ff2adab1ef0 RCX: 00007ff2acd7f79a RDX: 00000000200058c0 RSI: 0000000020005900 RDI: 00007ff2adab1eb0 RBP: 00000000200058c0 R08: 00007ff2adab1ef0 R09: 0000000000010000 R10: 0000000000010000 R11: 0000000000000246 R12: 0000000020005900 R13: 00007ff2adab1eb0 R14: 0000000000005938 R15: 0000000020000180 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:pack_state_finish fs/bcachefs/bkey.c:130 [inline] RIP: 0010:bch2_bkey_pack_pos_lossy+0x1956/0x1990 fs/bcachefs/bkey.c:525 Code: fd 90 0f 0b e8 5b b8 83 fd 90 0f 0b e8 53 b8 83 fd 90 0f 0b e8 4b b8 83 fd 90 0f 0b e8 43 b8 83 fd 90 0f 0b e8 3b b8 83 fd 90 <0f> 0b e8 33 47 b5 07 e8 2e b8 83 fd 90 0f 0b e8 26 b8 83 fd 90 0f RSP: 0018:ffffc9000ae65d20 EFLAGS: 00010287 RAX: ffffffff84111fa5 RBX: ffffc9080ae660b8 RCX: 0000000000040000 RDX: ffffc9000b642000 RSI: 000000000003fd35 RDI: 000000000003fd36 RBP: ffffc9000ae65f58 R08: ffffffff84110ea6 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: dffffc0000000000 R13: ffff8880500160c0 R14: 0000000000000000 R15: ffffc9000ae660c0 FS: 00007ff2adab26c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055f5d532a048 CR3: 000000003e47a000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400