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,prjquota,nochanges,recovery_pass_last=fs_freespace_init,nojournal_transaction_names,read_only,version_upgrade=incompatible allowing incompatible features above 0.0: (unknown version) features: lz4,new_siphash,inline_data,new_extent_overwrite,btree_ptr_v2,new_varint,journal_no_flush,alloc_v2,extents_across_btree_nodes bcachefs (loop0): Using encoding defined by superblock: utf8-12.1.0 bcachefs (loop0): invalid journal entry, version=1.7: mi_btree_bitmap type=clock in superblock: bad rw, fixing bcachefs (loop0): invalid bkey in superblock btree=xattrs level=1: u64s 11 type btree_ptr_v2 SPOS_MAX len 0 ver 0: seq 2285c34bed0abe32 written 16 min_key POS_MIN durability: 0 crc: c_size 1 size 1 offset 0 nonce 0 csum none 12010b:10004000b compress none has non ptr field, deleting bcachefs (loop0): recovering from clean shutdown, journal seq 10 bcachefs (loop0): Version upgrade from 1.3: rebalance_work to 1.7: mi_btree_bitmap incomplete Doing compatible version upgrade from 1.3: rebalance_work to 1.28: inode_has_case_insensitive running recovery passes: check_allocations,check_extents_to_backpointers,check_subvols,check_inodes,check_dirents bcachefs (loop0): Now allowing incompatible features up to 1.28: inode_has_case_insensitive, previously allowed up to 0.0: (unknown version) bcachefs (loop0): error reading btree root btree=inodes 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 0:0:U32_MAX durability: 1 ptr: 0:29:0 gen 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 inodes 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 inodes unreadable, must recover from scan bcachefs (loop0): no nodes found for btree inodes, 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 0:41 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 9aa2895aefce4bdf written 24 min_key POS_MIN durability: 1 ptr: 0:41:0 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: 5352 Comm: syz.0.0 Not tainted syzkaller #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+0x9f9/0xa20 fs/bcachefs/btree_iter.c:633 Code: 91 fb ff ff e8 48 b7 97 fd 90 0f 0b e8 40 b7 97 fd 90 0f 0b e8 38 b7 97 fd 90 0f 0b e8 30 b7 97 fd 90 0f 0b e8 28 b7 97 fd 90 <0f> 0b e8 20 b7 97 fd 90 0f 0b e8 18 b7 97 fd 90 0f 0b e8 10 b7 97 RSP: 0018:ffffc9000d4c64a0 EFLAGS: 00010287 RAX: ffffffff84280408 RBX: ffff888053534360 RCX: 0000000000100000 RDX: ffffc9000dda2000 RSI: 00000000000617d7 RDI: 00000000000617d8 RBP: dffffc0000000000 R08: 0000000000000001 R09: 0000000000000000 R10: dffffc0000000000 R11: fffff52001a98c88 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 00000000ffffffff FS: 00007efde6a6d6c0(0000) GS:ffff88808d210000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f54983909c0 CR3: 0000000042ef0000 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+0x3bd/0x1060 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+0x92/0x2b0 fs/super.c:1815 do_new_mount+0x2a2/0x9e0 fs/namespace.c:3808 do_mount fs/namespace.c:4136 [inline] __do_sys_mount fs/namespace.c:4347 [inline] __se_sys_mount+0x317/0x410 fs/namespace.c:4324 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: 0033:0x7efde5b9038a 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:00007efde6a6ce68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007efde6a6cef0 RCX: 00007efde5b9038a RDX: 00002000000000c0 RSI: 0000200000000080 RDI: 00007efde6a6ceb0 RBP: 00002000000000c0 R08: 00007efde6a6cef0 R09: 0000000000818001 R10: 0000000000818001 R11: 0000000000000246 R12: 0000200000000080 R13: 00007efde6a6ceb0 R14: 0000000000005968 R15: 0000200000000340 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:bch2_btree_path_level_init+0x9f9/0xa20 fs/bcachefs/btree_iter.c:633 Code: 91 fb ff ff e8 48 b7 97 fd 90 0f 0b e8 40 b7 97 fd 90 0f 0b e8 38 b7 97 fd 90 0f 0b e8 30 b7 97 fd 90 0f 0b e8 28 b7 97 fd 90 <0f> 0b e8 20 b7 97 fd 90 0f 0b e8 18 b7 97 fd 90 0f 0b e8 10 b7 97 RSP: 0018:ffffc9000d4c64a0 EFLAGS: 00010287 RAX: ffffffff84280408 RBX: ffff888053534360 RCX: 0000000000100000 RDX: ffffc9000dda2000 RSI: 00000000000617d7 RDI: 00000000000617d8 RBP: dffffc0000000000 R08: 0000000000000001 R09: 0000000000000000 R10: dffffc0000000000 R11: fffff52001a98c88 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 00000000ffffffff FS: 00007efde6a6d6c0(0000) GS:ffff88808d210000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f54983909c0 CR3: 0000000042ef0000 CR4: 0000000000352ef0