u64s 3 fields 64:0, 64:0, 32:0, 0:2251799813685248, 0:0, 0:0 flagging btree freespace lost data running recovery pass check_alloc_info (13), currently at recovery_pass_empty (0) ret btree_node_read_validate_error bcachefs (loop0): error reading btree root btree=freespace level=0: btree_node_read_error, fixing bcachefs (loop0): check_topology... bcachefs (loop0): btree root extents 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 3 nodes after overwrites done bcachefs (loop0): check_topology... bcachefs (loop0): btree root extents unreadable, must recover from scan bcachefs (loop0): bch2_get_scanned_nodes(): recovery btree=extents 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 c6c25c03258c59c5 written 16 min_key POS_MIN durability: 1 ptr: 0:27:0 gen 0 bcachefs (loop0): empty interior btree node at btree=extents level=1 u64s 5 type btree_ptr SPOS_MAX len 0 ver 0, fixing bcachefs (loop0): bch2_btree_repair_topology_recurse(): error ECHILD bcachefs (loop0): empty btree root extents bcachefs (loop0): btree root xattrs unreadable, must recover from scan bcachefs (loop0): bch2_get_scanned_nodes(): recovery btree=xattrs 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 2285c34bed0abe32 written 16 min_key POS_MIN durability: 1 ptr: 0:31:0 gen 0 done bcachefs (loop0): accounting_read... done bcachefs (loop0): alloc_read... done bcachefs (loop0): snapshots_read... done bcachefs (loop0): check_allocations... bcachefs (loop0): btree ptr not marked in member info btree allocated bitmap 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): btree ptr not marked in member info btree allocated bitmap 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 0:31 gen 128 data type btree: ptr gen 0 too stale 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 bcachefs (loop0): bucket 0:31 data type btree stale dirty ptr: 0 < 128 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 bcachefs (loop0): btree ptr not marked in member info btree allocated bitmap 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): btree ptr not marked in member info btree allocated bitmap 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 bcachefs (loop0): bucket 0:27 gen 0 has wrong data_type: got btree, should be need_discard, fixing bcachefs (loop0): bucket 0:27 gen 0 data type need_discard has wrong dirty_sectors: got 256, should be 0, fixing bcachefs (loop0): bucket 0:29 gen 0 has wrong data_type: got btree, should be need_discard, fixing bcachefs (loop0): bucket 0:29 gen 0 data type need_discard has wrong dirty_sectors: got 256, should be 0, fixing bcachefs (loop0): bucket 0:41 gen 0 has wrong data_type: got btree, should be need_discard, fixing bcachefs (loop0): bucket 0:41 gen 0 data type need_discard has wrong dirty_sectors: got 256, should be 0, fixing done bcachefs (loop0): going read-write bcachefs (loop0): journal_replay... ------------[ cut here ]------------ kernel BUG at fs/bcachefs/btree_update.c:375! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5345 Comm: syz.0.0 Not tainted 6.16.0-rc5-syzkaller-00224-g379f604cc3dc #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_trans_update_by_path+0x1efb/0x1f30 fs/bcachefs/btree_update.c:375 Code: 80 e1 07 fe c1 38 c1 0f 8c 40 f7 ff ff 48 8b 7c 24 28 e8 08 0a fa fd e9 31 f7 ff ff e8 be 86 96 fd 90 0f 0b e8 b6 86 96 fd 90 <0f> 0b e8 ae 86 96 fd 90 0f 0b e8 a6 86 96 fd 90 0f 0b e8 9e 86 96 RSP: 0018:ffffc9000d38ea08 EFLAGS: 00010293 RAX: ffffffff8429afba RBX: 0000000000008540 RCX: ffff8880005f4880 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 1ffff1100a67b802 R08: ffffffff844db6c9 R09: 0000000000000002 R10: 0000000000000003 R11: 0000000000000000 R12: 1ffff1100a67b85e R13: ffff8880533dc010 R14: 0000000000000088 R15: ffff8880533dc2f0 FS: 00007fedb579c6c0(0000) GS:ffff88808d21b000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f5895b909c0 CR3: 0000000042f26000 CR4: 0000000000352ef0 Call Trace: bch2_trans_update_ip+0x9a6/0x1db0 fs/bcachefs/btree_update.c:531 bch2_trans_update fs/bcachefs/btree_update.h:123 [inline] bch2_journal_replay_key+0x4b0/0xb40 fs/bcachefs/recovery.c:311 bch2_journal_replay+0x171d/0x2630 fs/bcachefs/recovery.c:396 bch2_run_recovery_pass fs/bcachefs/recovery_passes.c:484 [inline] __bch2_run_recovery_passes+0x395/0x1010 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:1005 bch2_fs_start+0xaaf/0xda0 fs/bcachefs/super.c:1213 bch2_fs_get_tree+0xb39/0x1520 fs/bcachefs/fs.c:2488 vfs_get_tree+0x92/0x2b0 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: 0033:0x7fedb49900ca 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:00007fedb579be68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007fedb579bef0 RCX: 00007fedb49900ca RDX: 00002000000058c0 RSI: 0000200000005900 RDI: 00007fedb579beb0 RBP: 00002000000058c0 R08: 00007fedb579bef0 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000005900 R13: 00007fedb579beb0 R14: 00000000000058f9 R15: 0000200000000000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:bch2_trans_update_by_path+0x1efb/0x1f30 fs/bcachefs/btree_update.c:375 Code: 80 e1 07 fe c1 38 c1 0f 8c 40 f7 ff ff 48 8b 7c 24 28 e8 08 0a fa fd e9 31 f7 ff ff e8 be 86 96 fd 90 0f 0b e8 b6 86 96 fd 90 <0f> 0b e8 ae 86 96 fd 90 0f 0b e8 a6 86 96 fd 90 0f 0b e8 9e 86 96 RSP: 0018:ffffc9000d38ea08 EFLAGS: 00010293 RAX: ffffffff8429afba RBX: 0000000000008540 RCX: ffff8880005f4880 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 1ffff1100a67b802 R08: ffffffff844db6c9 R09: 0000000000000002 R10: 0000000000000003 R11: 0000000000000000 R12: 1ffff1100a67b85e R13: ffff8880533dc010 R14: 0000000000000088 R15: ffff8880533dc2f0 FS: 00007fedb579c6c0(0000) GS:ffff88808d21b000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f5895b909c0 CR3: 0000000042f26000 CR4: 0000000000352ef0