loop0: detected capacity change from 0 to 32768 bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=errors=continue,metadata_checksum=none,data_checksum=none,compression=lz4,nojournal_transaction_names bcachefs (loop0): invalid journal entry, version=1.7: mi_btree_bitmap type=clock in superblock: bad size, fixing bcachefs (loop0): invalid journal entry, version=1.7: mi_btree_bitmap type=btree_root in superblock: invalid btree root journal entry: wrong number of keys, fixing 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 1.25: 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): bcachefs (loop0): error validating btree node at btree inodes level 0/0 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 node offset 16/24 bset u64s 110 bset byte offset 672: bad k->u64s 1 (min 3 max 253), fixing bcachefs (loop0): bcachefs (loop0): error validating btree node at btree inodes level 0/0 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 node offset 16/24 bset u64s 100 bset byte offset 832: key extends past end of bset, fixing bcachefs (loop0): btree_node_read_work: rewriting btree node at due to error btree=inodes level=0 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 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 xattrs level 0/0 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 node offset 0/16 bset u64s 0: invalid bkey format: field 0 too large: 18446744073709551615 + 50331648 > 18446744073709551615 u64s 3 fields 64:50331648, 64:0, 32:0, 0:0, 0:0, 0:0, btree topology error: bcachefs (loop0): flagging btree xattrs 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=xattrs level=0: btree_node_read_error, fixing bcachefs (loop0): bcachefs (loop0): error validating btree node on loop0 at btree alloc level 0/0 u64s 11 type btree_ptr_v2 SPOS_MAX len 0 ver 0: seq ac62141f8dc7e261 written 10 min_key POS_MIN durability: 1 ptr: 0:26:0 gen 0 node offset 8/10 bset u64s 375: bset past end of btree node (offset 8 len 8 but written 10), fixing bcachefs (loop0): bcachefs (loop0): error validating btree node on loop0 at btree alloc level 0/0 u64s 11 type btree_ptr_v2 SPOS_MAX len 0 ver 0: seq ac62141f8dc7e261 written 10 min_key POS_MIN durability: 1 ptr: 0:26:0 gen 0 node offset 8/10 bset u64s 0: empty bset, 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 10 min_key POS_MIN durability: 1 ptr: 0:26:0 gen 0 bcachefs (loop0): scan_for_btree_nodes... bcachefs (loop0): btree node scan found 6 nodes after overwrites done bcachefs (loop0): check_topology... bcachefs (loop0): btree root xattrs unreadable, must recover from scan bcachefs (loop0): no nodes found for btree xattrs, 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 10 min_key POS_MIN durability: 1 ptr: 0:26:0 gen 0, fixing bcachefs (loop0): 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 bcachefs (loop0): 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 Oops: general protection fault, probably for non-canonical address 0xdffffc0000000004: 0000 [#1] SMP KASAN NOPTI KASAN: null-ptr-deref in range [0x0000000000000020-0x0000000000000027] CPU: 0 UID: 0 PID: 5325 Comm: syz.0.0 Not tainted 6.15.0-rc2-syzkaller-00037-g834a4a689699 #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_snapshot_tree_oldest_subvol+0x1d3/0x6a0 fs/bcachefs/snapshot.c:400 Code: e6 e8 11 ae 36 fd 4c 39 e5 0f 86 c9 03 00 00 e8 a3 ab 36 fd 49 6b c4 38 49 01 c6 49 83 c6 18 49 83 c6 20 4c 89 f0 48 c1 e8 03 <42> 0f b6 04 28 84 c0 0f 85 c6 03 00 00 41 8b 2e 31 ff 89 ee e8 b4 RSP: 0018:ffffc9000d42e040 EFLAGS: 00010202 RAX: 0000000000000004 RBX: 0000000000000001 RCX: 0000000000100000 RDX: ffffc9000ea2b000 RSI: 0000000000080afe RDI: 0000000000080aff RBP: 0000000000000001 R08: ffffffff848ca97f R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 00000000ffeb487f R13: dffffc0000000000 R14: 0000000000000020 R15: 000000000014b780 FS: 00007fcfd17f56c0(0000) GS:ffff88808c593000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055634c0fd008 CR3: 0000000042f16000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: bch2_inum_snap_offset_err_msg_trans+0x374/0x680 fs/bcachefs/error.c:694 bch2_indirect_extent_missing_error+0x411/0x1290 fs/bcachefs/reflink.c:192 gc_trigger_reflink_p_segment fs/bcachefs/reflink.c:392 [inline] __trigger_reflink_p+0x1960/0x1cb0 fs/bcachefs/reflink.c:432 bch2_trigger_reflink_p+0x299/0x380 fs/bcachefs/reflink.c:451 bch2_key_trigger fs/bcachefs/bkey_methods.h:88 [inline] bch2_gc_mark_key+0x6b9/0x1170 fs/bcachefs/btree_gc.c:639 bch2_gc_btree fs/bcachefs/btree_gc.c:677 [inline] bch2_gc_btrees fs/bcachefs/btree_gc.c:740 [inline] bch2_check_allocations+0x1439/0x6930 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:1059 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+0xf3/0x230 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fcfd538e90a 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:00007fcfd17f4e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007fcfd17f4ef0 RCX: 00007fcfd538e90a RDX: 00002000000058c0 RSI: 0000200000005900 RDI: 00007fcfd17f4eb0 RBP: 00002000000058c0 R08: 00007fcfd17f4ef0 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000005900 R13: 00007fcfd17f4eb0 R14: 00000000000058e4 R15: 0000200000000000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:bch2_snapshot_tree_oldest_subvol+0x1d3/0x6a0 fs/bcachefs/snapshot.c:400 Code: e6 e8 11 ae 36 fd 4c 39 e5 0f 86 c9 03 00 00 e8 a3 ab 36 fd 49 6b c4 38 49 01 c6 49 83 c6 18 49 83 c6 20 4c 89 f0 48 c1 e8 03 <42> 0f b6 04 28 84 c0 0f 85 c6 03 00 00 41 8b 2e 31 ff 89 ee e8 b4 RSP: 0018:ffffc9000d42e040 EFLAGS: 00010202 RAX: 0000000000000004 RBX: 0000000000000001 RCX: 0000000000100000 RDX: ffffc9000ea2b000 RSI: 0000000000080afe RDI: 0000000000080aff RBP: 0000000000000001 R08: ffffffff848ca97f R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 00000000ffeb487f R13: dffffc0000000000 R14: 0000000000000020 R15: 000000000014b780 FS: 00007fcfd17f56c0(0000) GS:ffff88808c593000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055634c0fd008 CR3: 0000000042f16000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: e6 e8 out %al,$0xe8 2: 11 ae 36 fd 4c 39 adc %ebp,0x394cfd36(%rsi) 8: e5 0f in $0xf,%eax a: 86 c9 xchg %cl,%cl c: 03 00 add (%rax),%eax e: 00 e8 add %ch,%al 10: a3 ab 36 fd 49 6b c4 movabs %eax,0x4938c46b49fd36ab 17: 38 49 19: 01 c6 add %eax,%esi 1b: 49 83 c6 18 add $0x18,%r14 1f: 49 83 c6 20 add $0x20,%r14 23: 4c 89 f0 mov %r14,%rax 26: 48 c1 e8 03 shr $0x3,%rax * 2a: 42 0f b6 04 28 movzbl (%rax,%r13,1),%eax <-- trapping instruction 2f: 84 c0 test %al,%al 31: 0f 85 c6 03 00 00 jne 0x3fd 37: 41 8b 2e mov (%r14),%ebp 3a: 31 ff xor %edi,%edi 3c: 89 ee mov %ebp,%esi 3e: e8 .byte 0xe8 3f: b4 .byte 0xb4