bcachefs (loop0): Version upgrade required: Version upgrade from 0.24: unwritten_extents to 1.519: (unknown version) incomplete Doing incompatible version upgrade from 0.24: unwritten_extents to 1.28: inode_has_case_insensitive 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,check_rebalance_work,set_fs_needs_rebalance bcachefs (loop0): btree node read error at btree snapshots level 0/0 u64s 11 type btree_ptr_v2 SPOS_MAX len 0 ver 0: seq ebb8d5a9e3463bdb written 16 min_key 0:262144:0 durability: 1 ptr: 0:32:0 gen 0 loop0 node offset 0/16: incorrect min_key: got POS_MIN should be 0:262144:0 loop0 btree validate error flagging btree snapshots lost data running recovery pass check_topology (2), currently at recovery_pass_empty (0) running recovery pass reconstruct_snapshots (21), currently at recovery_pass_empty (0) running recovery pass check_topology (2), currently at recovery_pass_empty (0) running recovery pass scan_for_btree_nodes (1), currently at recovery_pass_empty (0) ret btree_node_read_err_bad_node bcachefs (loop0): error reading btree root btree=snapshots level=0: btree_node_read_error, fixing bcachefs (loop0): btree node read error at btree freespace level 0/0 u64s 11 type btree_ptr_v2 SPOS_MAX len 0 ver 0: seq e81e1ed936acf3df written 65535 min_key R 0:3703155162349568:0 durability: 1 ptr: 0:29:0 gen 0 node offset 16/65535 bset u64s 13 bset byte offset 80: keys out of order: u64s 5 type set 3:29:0 len 1 ver 0 > u64s 5 type set 0:31:0 len 1 ver 0 node offset 24/65535 bset u64s 24 bset byte offset 192: keys out of order: u64s 5 type deleted 50331648:38:0 len 0 ver 0 > u64s 5 type set 0:120:0 len 77 ver 0 loop0 node offset 32/65535: btree node data missing: expected 65535 sectors, found 32 loop0 btree validate error repair success (rewriting node) bcachefs (loop0): check_topology... bcachefs (loop0): btree root snapshots unreadable, must recover from scan bcachefs (loop0): running recovery pass scan_for_btree_nodes (1), currently at check_topology (2) - rewinding bcachefs (loop0): bch2_check_root(): error restart_recovery bcachefs (loop0): scan_for_btree_nodes... bcachefs (loop0): btree node scan found 1 nodes after overwrites done bcachefs (loop0): check_topology... bcachefs (loop0): btree root snapshots unreadable, must recover from scan bcachefs (loop0): no nodes found for btree snapshots, continuing done bcachefs (loop0): accounting_read... done bcachefs (loop0): alloc_read... done bcachefs (loop0): snapshots_read... done bcachefs (loop0): check_allocations... bcachefs (loop0): 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 ac62141f8dc7e261 written 24 min_key POS_MIN durability: 1 ptr: 0:26:0 gen 0, fixing bcachefs (loop0): 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 bcachefs (loop0): bucket 0:38 gen 0 different types of data in same bucket: journal, 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 bcachefs (loop0): 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 281474976710656: seq 9aa2895aefce4bdf written 24 min_key POS_MIN durability: 1 ptr: 0:41:0 gen 0, fixing bcachefs (loop0): 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 bcachefs (loop0): bucket 0:35 gen 0 different types of data in same bucket: journal, 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 ------------[ cut here ]------------ kernel BUG at fs/bcachefs/btree_iter.c:633! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5344 Comm: syz.0.0 Not tainted 6.16.0-rc6-syzkaller-00002-g155a3c003e55 #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:bch2_btree_path_level_init+0xa01/0xa20 fs/bcachefs/btree_iter.c:633 Code: fd 90 0f 0b e8 00 7d 9e fd 90 0f 0b e8 f8 7c 9e fd 90 0f 0b e8 f0 7c 9e fd 90 0f 0b e8 e8 7c 9e fd 90 0f 0b e8 e0 7c 9e fd 90 <0f> 0b e8 d8 7c 9e fd 90 0f 0b e8 d0 7c 9e fd 90 0f 0b 66 66 66 66 RSP: 0018:ffffc9000d356540 EFLAGS: 00010287 RAX: ffffffff8421b690 RBX: ffff888053050360 RCX: 0000000000100000 RDX: ffffc9000e362000 RSI: 000000000008d97c RDI: 000000000008d97d RBP: dffffc0000000000 R08: 0000000000000001 R09: 0000000000000000 R10: dffffc0000000000 R11: fffff52001a6ac9c R12: 000d280000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 FS: 00007f5ab80096c0(0000) GS:ffff88808d21b000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ff54a9a1796 CR3: 0000000031bd0000 CR4: 0000000000352ef0 Call Trace: btree_path_lock_root fs/bcachefs/btree_iter.c:787 [inline] bch2_btree_path_traverse_one+0xfec/0x21d0 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:2267 [inline] bch2_btree_iter_peek_max+0x9e8/0x58f0 fs/bcachefs/btree_iter.c:2384 bch2_btree_iter_peek_max_type fs/bcachefs/btree_iter.h:743 [inline] bch2_gc_btree fs/bcachefs/btree_gc.c:729 [inline] bch2_gc_btrees fs/bcachefs/btree_gc.c:792 [inline] bch2_check_allocations+0x120d/0x57b0 fs/bcachefs/btree_gc.c:1094 bch2_run_recovery_pass fs/bcachefs/recovery_passes.c:484 [inline] __bch2_run_recovery_passes+0x392/0x1010 fs/bcachefs/recovery_passes.c:539 bch2_run_recovery_passes+0x184/0x210 fs/bcachefs/recovery_passes.c:610 bch2_fs_recovery+0x2690/0x3a50 fs/bcachefs/recovery.c:1016 bch2_fs_start+0xaaf/0xda0 fs/bcachefs/super.c:1213 bch2_fs_get_tree+0xb39/0x1520 fs/bcachefs/fs.c:2488 vfs_get_tree+0x8f/0x2b0 fs/super.c:1804 do_new_mount+0x24a/0xa40 fs/namespace.c:3902 do_mount fs/namespace.c:4239 [inline] __do_sys_mount fs/namespace.c:4450 [inline] __se_sys_mount+0x317/0x410 fs/namespace.c:4427 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: 0033:0x7f5ab71900ca 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:00007f5ab8008e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f5ab8008ef0 RCX: 00007f5ab71900ca RDX: 00002000000000c0 RSI: 0000200000000100 RDI: 00007f5ab8008eb0 RBP: 00002000000000c0 R08: 00007f5ab8008ef0 R09: 000000000000001e R10: 000000000000001e R11: 0000000000000246 R12: 0000200000000100 R13: 00007f5ab8008eb0 R14: 0000000000005a27 R15: 0000200000000000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:bch2_btree_path_level_init+0xa01/0xa20 fs/bcachefs/btree_iter.c:633 Code: fd 90 0f 0b e8 00 7d 9e fd 90 0f 0b e8 f8 7c 9e fd 90 0f 0b e8 f0 7c 9e fd 90 0f 0b e8 e8 7c 9e fd 90 0f 0b e8 e0 7c 9e fd 90 <0f> 0b e8 d8 7c 9e fd 90 0f 0b e8 d0 7c 9e fd 90 0f 0b 66 66 66 66 RSP: 0018:ffffc9000d356540 EFLAGS: 00010287 RAX: ffffffff8421b690 RBX: ffff888053050360 RCX: 0000000000100000 RDX: ffffc9000e362000 RSI: 000000000008d97c RDI: 000000000008d97d RBP: dffffc0000000000 R08: 0000000000000001 R09: 0000000000000000 R10: dffffc0000000000 R11: fffff52001a6ac9c R12: 000d280000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 FS: 00007f5ab80096c0(0000) GS:ffff88808d21b000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ff54a9a1796 CR3: 0000000031bd0000 CR4: 0000000000352ef0