mmap: syz.0.0 (5335) uses deprecated remap_file_pages() syscall. See Documentation/mm/remap_file_pages.rst. 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,nojournal_transaction_names 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 invalid bkey u64s 11 type alloc_v4 0:9:0 len 0 ver 0: gen 0 oldest_gen 0 data_type journal journal_seq 1 need_discard 1 need_inc_gen 1 dirty_sectors 256 stripe_sectors 0 cached_sectors 0 stripe 0 stripe_redundancy 0 io_time[READ] 10169972383532711937 io_time[WRITE] 0 fragmentation 0 bp_start 8 invalid io_time[read]: 10169972383532711937, max 281474976710655: deleting bcachefs (loop0): accounting_read... done bcachefs (loop0): alloc_read... done bcachefs (loop0): stripes_read... done bcachefs (loop0): snapshots_read... done bcachefs (loop0): check_allocations... 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 ------------[ cut here ]------------ kernel BUG at fs/bcachefs/btree_iter.c:631! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5335 Comm: syz.0.0 Not tainted 6.12.0-rc7-syzkaller-00070-g0a9b9d17f3a7 #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:bch2_btree_path_level_init+0x9ca/0x9f0 fs/bcachefs/btree_iter.c:631 Code: f5 fa ff ff e8 37 05 7c fd 90 0f 0b e8 2f 05 7c fd 90 0f 0b e8 27 05 7c fd 90 0f 0b e8 1f 05 7c fd 90 0f 0b e8 17 05 7c fd 90 <0f> 0b e8 0f 05 7c fd 90 0f 0b e8 07 05 7c fd 90 0f 0b e8 ff 04 7c RSP: 0018:ffffc9000d3f61e0 EFLAGS: 00010293 RAX: ffffffff8418e4f9 RBX: 0000000000000000 RCX: ffff888000b78000 RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000000000000 RBP: dffffc0000000000 R08: ffffffff8418dd4c R09: 0000000000000000 R10: dffffc0000000000 R11: fffffbfff203a156 R12: ffff888036072800 R13: 0000000000000000 R14: 0000000000000000 R15: ffff888052300033 FS: 00007fd260ff76c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055e6686d27b8 CR3: 000000004373c000 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:769 [inline] bch2_btree_path_traverse_one+0x10de/0x2940 fs/bcachefs/btree_iter.c:1183 bch2_btree_path_traverse fs/bcachefs/btree_iter.h:247 [inline] __bch2_btree_iter_peek fs/bcachefs/btree_iter.c:2210 [inline] bch2_btree_iter_peek_upto+0xb58/0x70e0 fs/bcachefs/btree_iter.c:2310 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+0x1abe/0x7070 fs/bcachefs/btree_gc.c:1133 bch2_run_recovery_pass+0xf0/0x1e0 fs/bcachefs/recovery_passes.c:185 bch2_run_recovery_passes+0x3a7/0x880 fs/bcachefs/recovery_passes.c:238 bch2_fs_recovery+0x25cc/0x39d0 fs/bcachefs/recovery.c:861 bch2_fs_start+0x356/0x5b0 fs/bcachefs/super.c:1036 bch2_fs_get_tree+0xd68/0x1710 fs/bcachefs/fs.c:2170 vfs_get_tree+0x90/0x2b0 fs/super.c:1814 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: 0033:0x7fd26017feba 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:00007fd260ff6e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007fd260ff6ef0 RCX: 00007fd26017feba RDX: 0000000020000000 RSI: 00000000200000c0 RDI: 00007fd260ff6eb0 RBP: 0000000020000000 R08: 00007fd260ff6ef0 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000200000c0 R13: 00007fd260ff6eb0 R14: 000000000000594d R15: 0000000020000040 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:bch2_btree_path_level_init+0x9ca/0x9f0 fs/bcachefs/btree_iter.c:631 Code: f5 fa ff ff e8 37 05 7c fd 90 0f 0b e8 2f 05 7c fd 90 0f 0b e8 27 05 7c fd 90 0f 0b e8 1f 05 7c fd 90 0f 0b e8 17 05 7c fd 90 <0f> 0b e8 0f 05 7c fd 90 0f 0b e8 07 05 7c fd 90 0f 0b e8 ff 04 7c RSP: 0018:ffffc9000d3f61e0 EFLAGS: 00010293 RAX: ffffffff8418e4f9 RBX: 0000000000000000 RCX: ffff888000b78000 RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000000000000 RBP: dffffc0000000000 R08: ffffffff8418dd4c R09: 0000000000000000 R10: dffffc0000000000 R11: fffffbfff203a156 R12: ffff888036072800 R13: 0000000000000000 R14: 0000000000000000 R15: ffff888052300033 FS: 00007fd260ff76c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055bd438d3108 CR3: 000000004373c000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400