bcachefs (loop0): recovering from clean shutdown, journal seq 10 bcachefs (loop0): Version upgrade required: Version upgrade from 0.19: freespace to 1.7: mi_btree_bitmap incomplete Doing incompatible version upgrade from 0.19: freespace to 1.25: extent_flags 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): invalid bkey in btree_node btree=extents level=0: u64s 6 type deleted 18446744069414584328:0:0 len 0 ver 0: snapshot == 0, deleting bcachefs (loop0): invalid bkey in btree_node btree=extents level=0: u64s 10 type deleted 8825211592396076079:4100:0 len 0 ver 0: snapshot == 0, deleting bcachefs (loop0): running explicit recovery pass check_topology (2), currently at recovery_pass_empty (0) bcachefs (loop0): bcachefs (loop0): error validating btree node on loop0 at btree dirents level 0/0 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 node offset 0/24: got wrong btree node: got btree=dirents level=0 seq 9aa2895a00084bdf 1 min: POS_MIN max: SPOS_MAX, btree topology error: bcachefs (loop0): flagging btree dirents lost data bcachefs (loop0): running explicit recovery pass scan_for_btree_nodes (1), currently at recovery_pass_empty (0) bcachefs (loop0): error reading btree root btree=dirents level=0: btree_node_read_error, fixing bcachefs (loop0): bcachefs (loop0): error validating btree node at btree alloc level 0/0 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 node offset 8/24 bset u64s 375 bset byte offset 1824: bad k->u64s 1 (min 3 max 253), fixing bcachefs (loop0): btree_node_read_work: rewriting btree node at due to error btree=alloc level=0 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 bcachefs (loop0): bcachefs (loop0): error validating btree node on loop0 at btree subvolumes level 0/0 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 node offset 0/16: incorrect min_key: got 0:0:262144 should be POS_MIN, btree topology error: bcachefs (loop0): flagging btree subvolumes lost data bcachefs (loop0): error reading btree root btree=subvolumes level=0: btree_node_read_error, fixing bcachefs (loop0): scan_for_btree_nodes... bcachefs (loop0): btree node scan found 7 nodes after overwrites done bcachefs (loop0): check_topology... bcachefs (loop0): btree root dirents unreadable, must recover from scan bcachefs (loop0): bch2_get_scanned_nodes(): recovery btree=dirents level=0 POS_MIN - SPOS_MAX bcachefs (loop0): bch2_get_scanned_nodes(): recovering u64s 11 type btree_ptr_v2 SPOS_MAX len 0 ver 0: seq 9aa2895a00084bdf written 8 min_key POS_MIN durability: 1 ptr: 0:41:0 gen 0 bcachefs (loop0): btree root subvolumes unreadable, must recover from scan bcachefs (loop0): bch2_get_scanned_nodes(): recovery btree=subvolumes level=0 POS_MIN - SPOS_MAX bcachefs (loop0): bch2_get_scanned_nodes(): recovering u64s 11 type btree_ptr_v2 SPOS_MAX len 0 ver 0: seq c0bef60d07ceb940 written 16 min_key 0:0:262144 durability: 1 ptr: 0:35:0 gen 0 bcachefs (loop0): bch2_get_scanned_nodes(): recovery btree=subvolumes level=0 POS_MIN - 0:0:262143 bcachefs (loop0): btree node with incorrect min_key at btree=subvolumes level=1: parent: u64s 5 type btree_ptr SPOS_MAX len 0 ver 0 next: u64s 11 type btree_ptr_v2 SPOS_MAX len 0 ver 0: seq c0bef60d07ceb940 written 16 min_key 0:0:262144 durability: 1 ptr: 0:35:0 gen 0, fixing bcachefs (loop0): set_node_min(): u64s 11 type btree_ptr_v2 SPOS_MAX len 0 ver 0: seq c0bef60d07ceb940 written 16 min_key 0:0:262144 durability: 1 ptr: 0:35:0 gen 0 -> POS_MIN done bcachefs (loop0): accounting_read... done bcachefs (loop0): alloc_read... done bcachefs (loop0): snapshots_read... done bcachefs (loop0): check_allocations... ------------[ cut here ]------------ kernel BUG at fs/bcachefs/btree_iter.c:619! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5325 Comm: syz.0.0 Not tainted 6.15.0-rc3-syzkaller-00008-ga33b5a08cbbd #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+0x9dc/0xa00 fs/bcachefs/btree_iter.c:619 Code: e9 fa ff ff e8 f5 19 6c fd 90 0f 0b e8 ed 19 6c fd 90 0f 0b e8 e5 19 6c fd 90 0f 0b e8 dd 19 6c fd 90 0f 0b e8 d5 19 6c fd 90 <0f> 0b e8 cd 19 6c fd 90 0f 0b e8 c5 19 6c fd 90 0f 0b e8 bd 19 6c RSP: 0018:ffffc9000fd7e200 EFLAGS: 00010283 RAX: ffffffff8456a34b RBX: 0000000000000000 RCX: 0000000000100000 RDX: ffffc9000dce2000 RSI: 00000000000a51a3 RDI: 00000000000a51a4 RBP: dffffc0000000000 R08: ffffffff84569b8c R09: 0000000000000000 R10: dffffc0000000000 R11: fffff52001fafc34 R12: ffff888053705800 R13: 0000000000000000 R14: 0000000000000000 R15: ffff888056900033 FS: 00007f65ae8a06c0(0000) GS:ffff88808c59a000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000557a079e10b8 CR3: 000000004319c000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: btree_path_lock_root fs/bcachefs/btree_iter.c:773 [inline] bch2_btree_path_traverse_one+0x10af/0x2970 fs/bcachefs/btree_iter.c:1189 bch2_btree_path_traverse fs/bcachefs/btree_iter.h:248 [inline] __bch2_btree_iter_peek fs/bcachefs/btree_iter.c:2243 [inline] bch2_btree_iter_peek_max+0xb9b/0x61a0 fs/bcachefs/btree_iter.c:2347 bch2_btree_iter_peek_max_type fs/bcachefs/btree_iter.h:702 [inline] bch2_gc_btree fs/bcachefs/btree_gc.c:677 [inline] bch2_gc_btrees fs/bcachefs/btree_gc.c:740 [inline] bch2_check_allocations+0x129b/0x6930 fs/bcachefs/btree_gc.c:1042 bch2_run_recovery_pass+0xf0/0x1e0 fs/bcachefs/recovery_passes.c:226 bch2_run_recovery_passes+0x2ad/0xa90 fs/bcachefs/recovery_passes.c:285 bch2_fs_recovery+0x292a/0x3e20 fs/bcachefs/recovery.c:936 bch2_fs_start+0x310/0x620 fs/bcachefs/super.c:1065 bch2_fs_get_tree+0x113e/0x18f0 fs/bcachefs/fs.c:2253 vfs_get_tree+0x90/0x2b0 fs/super.c:1759 do_new_mount+0x2cf/0xb70 fs/namespace.c:3881 do_mount fs/namespace.c:4221 [inline] __do_sys_mount fs/namespace.c:4432 [inline] __se_sys_mount+0x38c/0x400 fs/namespace.c:4409 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xf3/0x210 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f65ad98f90a 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:00007f65ae89fe68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f65ae89fef0 RCX: 00007f65ad98f90a RDX: 00002000000058c0 RSI: 0000200000005900 RDI: 00007f65ae89feb0 RBP: 00002000000058c0 R08: 00007f65ae89fef0 R09: 0000000001000000 R10: 0000000001000000 R11: 0000000000000246 R12: 0000200000005900 R13: 00007f65ae89feb0 R14: 0000000000005978 R15: 0000200000000240 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:bch2_btree_path_level_init+0x9dc/0xa00 fs/bcachefs/btree_iter.c:619 Code: e9 fa ff ff e8 f5 19 6c fd 90 0f 0b e8 ed 19 6c fd 90 0f 0b e8 e5 19 6c fd 90 0f 0b e8 dd 19 6c fd 90 0f 0b e8 d5 19 6c fd 90 <0f> 0b e8 cd 19 6c fd 90 0f 0b e8 c5 19 6c fd 90 0f 0b e8 bd 19 6c RSP: 0018:ffffc9000fd7e200 EFLAGS: 00010283 RAX: ffffffff8456a34b RBX: 0000000000000000 RCX: 0000000000100000 RDX: ffffc9000dce2000 RSI: 00000000000a51a3 RDI: 00000000000a51a4 RBP: dffffc0000000000 R08: ffffffff84569b8c R09: 0000000000000000 R10: dffffc0000000000 R11: fffff52001fafc34 R12: ffff888053705800 R13: 0000000000000000 R14: 0000000000000000 R15: ffff888056900033 FS: 00007f65ae8a06c0(0000) GS:ffff88808c59a000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000557a079e10b8 CR3: 000000004319c000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400