------------[ cut here ]------------
precision 64767 too large
WARNING: CPU: 1 PID: 16637 at lib/vsprintf.c:2794 vsnprintf+0xb0c/0xf00
Modules linked in:
CPU: 1 UID: 0 PID: 16637 Comm: syz.8.1590 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:vsnprintf+0xb0c/0xf00
Code: e8 09 3c 49 f6 49 89 ef e9 03 f6 ff ff e8 fc 3b 49 f6 c6 05 f8 23 17 04 01 90 48 c7 c7 20 43 bb 8c 44 89 fe e8 e5 d8 0c 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:ffffc900036e6090 EFLAGS: 00010246
RAX: 50cee9ebd9b7d800 RBX: dffffc0000000000 RCX: 0000000000080000
RDX: ffffc90030c0e000 RSI: 000000000002ec45 RDI: 000000000002ec46
RBP: ffffffff8bd4472e R08: ffff888136624253 R09: 1ffff11026cc484a
R10: dffffc0000000000 R11: ffffed1026cc484b R12: ffffc900036e61c0
R13: ffff88811227eb6d R14: 0000000000000003 R15: 000000000000fcff
FS:  00007fd0781fd6c0(0000) GS:ffff8881a3c15000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007efc58dff000 CR3: 0000000036764000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 bch2_prt_printf+0x1c6/0x740
 bch2_dirent_to_text+0x2bd/0xd20
 __bch2_bkey_fsck_err+0x3f7/0x540
 __bch2_bkey_validate+0x972/0xe30
 validate_bset_keys+0x74f/0x14a0
 bch2_btree_node_read_done+0x1c96/0x5550
 btree_node_read_work+0x40e/0xe60
 bch2_btree_node_read+0x887/0x2a00
 bch2_btree_root_read+0x5f0/0x760
 read_btree_roots+0x2c6/0x840
 bch2_fs_recovery+0x261f/0x3a50
 bch2_fs_start+0xaaf/0xda0
 bch2_fs_get_tree+0xb39/0x1520
 vfs_get_tree+0x92/0x2b0
 do_new_mount+0x2a2/0x9e0
 __se_sys_mount+0x317/0x410
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd07739034a
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:00007fd0781fce68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fd0781fcef0 RCX: 00007fd07739034a
RDX: 00002000000000c0 RSI: 0000200000005900 RDI: 00007fd0781fceb0
RBP: 00002000000000c0 R08: 00007fd0781fcef0 R09: 0000000000000041
R10: 0000000000000041 R11: 0000000000000246 R12: 0000200000005900
R13: 00007fd0781fceb0 R14: 00000000000058f5 R15: 0000200000000240
 </TASK>
