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,fsck,norecovery,nojournal_transaction_names,reconstruct_alloc,nocow,no_data_io 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 bkey in superblock btree=snapshots level=1: u64s 11 type btree_ptr_v2 SPOS_MAX len 0 ver 0: seq ebb8d5a9e3463bdb written 16 min_key POS_MIN durability: 0 crc: c_size 1 size 1 offset 2 nonce 0 csum none 0:0 compress none has non ptr field, deleting bcachefs (loop0): recovering from clean shutdown, journal seq 10 bcachefs (loop0): superblock requires following recovery passes to be run: check_topology,stripes_read,fs_journal_alloc,journal_replay 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 1.28: inode_has_case_insensitive 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,check_rebalance_work,set_fs_needs_rebalance bcachefs (loop0): dropping and reconstructing all alloc info ------------[ cut here ]------------ precision 65535 too large WARNING: CPU: 0 PID: 5325 at lib/vsprintf.c:2742 set_precision lib/vsprintf.c:2742 [inline] WARNING: CPU: 0 PID: 5325 at lib/vsprintf.c:2742 vsnprintf+0xb0c/0xf00 lib/vsprintf.c:2847 Modules linked in: CPU: 0 UID: 0 PID: 5325 Comm: syz.0.0 Not tainted 6.16.0-rc2-syzkaller-00082-gfb4d33ab452e #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:set_precision lib/vsprintf.c:2742 [inline] RIP: 0010:vsnprintf+0xb0c/0xf00 lib/vsprintf.c:2847 Code: e8 a9 da 5d f6 49 89 ef e9 03 f6 ff ff e8 9c da 5d f6 c6 05 08 94 28 04 01 90 48 c7 c7 80 1b b9 8c 44 89 fe e8 35 85 21 f6 90 <0f> 0b 90 90 e9 ba fc ff ff 89 e9 80 e1 07 38 c1 7c ba 48 89 ef e8 RSP: 0018:ffffc9000d4362d0 EFLAGS: 00010246 RAX: 0634ebded6490800 RBX: dffffc0000000000 RCX: 0000000000100000 RDX: ffffc9000e1e2000 RSI: 000000000003f8d2 RDI: 000000000003f8d3 RBP: ffffffff8bd3e0a3 R08: ffff88801fc24293 R09: 1ffff11003f84852 R10: dffffc0000000000 R11: ffffed1003f84853 R12: ffffc9000d436400 R13: ffff88803f21a174 R14: 0000000000000003 R15: 000000000000ffff FS: 00007fd7c6f8e6c0(0000) GS:ffff88808d251000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffbb43909c0 CR3: 0000000041b62000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: bch2_prt_printf+0x1c6/0x740 fs/bcachefs/printbuf.c:183 bch2_dirent_to_text+0x1f3/0xd20 fs/bcachefs/dirent.c:215 __bch2_bkey_fsck_err+0x3f7/0x540 fs/bcachefs/error.c:687 bch2_dirent_validate+0xb0a/0xfb0 fs/bcachefs/dirent.c:-1 bch2_bkey_val_validate+0x205/0x3e0 fs/bcachefs/bkey_methods.c:143 btree_node_bkey_val_validate fs/bcachefs/btree_io.c:890 [inline] bch2_btree_node_read_done+0x3539/0x51f0 fs/bcachefs/btree_io.c:1304 btree_node_read_work+0x426/0xe30 fs/bcachefs/btree_io.c:1411 bch2_btree_node_read+0x887/0x2a00 fs/bcachefs/btree_io.c:-1 __bch2_btree_root_read fs/bcachefs/btree_io.c:1877 [inline] bch2_btree_root_read+0x5f0/0x760 fs/bcachefs/btree_io.c:1899 read_btree_roots+0x2c2/0x880 fs/bcachefs/recovery.c:604 bch2_fs_recovery+0x2574/0x3950 fs/bcachefs/recovery.c:979 bch2_fs_start+0xa99/0xd90 fs/bcachefs/super.c:1203 bch2_fs_get_tree+0xb02/0x14f0 fs/bcachefs/fs.c:2489 vfs_get_tree+0x8f/0x2b0 fs/super.c:1804 do_new_mount+0x24a/0xa40 fs/namespace.c:3885 do_mount fs/namespace.c:4222 [inline] __do_sys_mount fs/namespace.c:4433 [inline] __se_sys_mount+0x317/0x410 fs/namespace.c:4410 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: 0033:0x7fd7c61900ca 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:00007fd7c6f8de68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007fd7c6f8def0 RCX: 00007fd7c61900ca RDX: 00002000000000c0 RSI: 0000200000000000 RDI: 00007fd7c6f8deb0 RBP: 00002000000000c0 R08: 00007fd7c6f8def0 R09: 0000000000804000 R10: 0000000000804000 R11: 0000000000000246 R12: 0000200000000000 R13: 00007fd7c6f8deb0 R14: 0000000000005967 R15: 00002000000002c0