syzbot

  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
------------[ cut here ]------------
precision 41609 too large
WARNING: CPU: 1 PID: 5840 at lib/vsprintf.c:2742 set_precision lib/vsprintf.c:2742 [inline]
WARNING: CPU: 1 PID: 5840 at lib/vsprintf.c:2742 vsnprintf+0xb0c/0xf00 lib/vsprintf.c:2847
Modules linked in:
CPU: 1 UID: 0 PID: 5840 Comm: syz-executor144 Not tainted 6.16.0-rc6-syzkaller-00002-g155a3c003e55 #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:set_precision lib/vsprintf.c:2742 [inline]
RIP: 0010:vsnprintf+0xb0c/0xf00 lib/vsprintf.c:2847
Code: e8 49 d0 5b f6 49 89 ef e9 03 f6 ff ff e8 3c d0 5b f6 c6 05 87 6e 26 04 01 90 48 c7 c7 80 0e b9 8c 44 89 fe e8 35 b3 1f 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:ffffc90003ece810 EFLAGS: 00010246
RAX: 0d570ec27934e500 RBX: dffffc0000000000 RCX: ffff888027a83c00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000002
RBP: ffffffff8bd3dc0e R08: ffff8880b8724293 R09: 1ffff110170e4852
R10: dffffc0000000000 R11: ffffed10170e4853 R12: ffffc90003ece940
R13: ffff888079389d69 R14: 0000000000000003 R15: 000000000000a289
FS:  0000555562fd0380(0000) GS:ffff888125d4f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffd08e5eff8 CR3: 000000007298c000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 bch2_prt_printf+0x1c6/0x740 fs/bcachefs/printbuf.c:183
 bch2_dirent_to_text+0x2bd/0xd20 fs/bcachefs/dirent.c:218
 __bch2_bkey_fsck_err+0x3f7/0x540 fs/bcachefs/error.c:691
 __bch2_bkey_validate+0x972/0xe30 fs/bcachefs/bkey_methods.c:196
 bch2_bkey_validate+0xf3/0x4e0 fs/bcachefs/bkey_methods.c:250
 journal_validate_key+0x631/0xe50 fs/bcachefs/journal_io.c:388
 journal_entry_btree_root_validate+0x22a/0x620 fs/bcachefs/journal_io.c:480
 bch2_journal_entry_validate+0x15b/0x220 fs/bcachefs/journal_io.c:874
 bch2_sb_clean_validate_late+0x16c/0x330 fs/bcachefs/sb-clean.c:44
 bch2_read_superblock_clean+0xd9/0x260 fs/bcachefs/sb-clean.c:172
 bch2_fs_recovery+0x158/0x3a50 fs/bcachefs/recovery.c:738
 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: 0033:0x7f47594d80aa
Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 5e 04 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffe2e665b08 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007ffe2e665b20 RCX: 00007f47594d80aa
RDX: 0000200000000080 RSI: 0000200000000000 RDI: 00007ffe2e665b20
RBP: 0000200000000000 R08: 00007ffe2e665b60 R09: 00000000000058cf
R10: 0000000000000000 R11: 0000000000000282 R12: 0000200000000080
R13: 00007ffe2e665b60 R14: 0000000000000003 R15: 0000000000000000
 </TASK>