loop0: detected capacity change from 0 to 32768
bcachefs (/dev/loop0): error reading default superblock: checksum error, type none: got  should be 
bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=none,compression=lz4,nojournal_transaction_names,read_only
------------[ cut here ]------------
precision 55606 too large
WARNING: CPU: 0 PID: 5333 at lib/vsprintf.c:2720 set_precision lib/vsprintf.c:2720 [inline]
WARNING: CPU: 0 PID: 5333 at lib/vsprintf.c:2720 vsnprintf+0xd76/0x1230 lib/vsprintf.c:2825
Modules linked in:
CPU: 0 UID: 0 PID: 5333 Comm: syz.0.0 Not tainted 6.15.0-rc2-syzkaller-00037-g834a4a689699 #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:2720 [inline]
RIP: 0010:vsnprintf+0xd76/0x1230 lib/vsprintf.c:2825
Code: 00 e8 ce b3 96 f5 49 89 dd e9 0f f4 ff ff e8 c1 b3 96 f5 c6 05 38 41 1d 04 01 90 48 c7 c7 a0 5a 77 8d 89 de e8 2b d5 55 f5 90 <0f> 0b 90 90 e9 ec fb ff ff 89 d9 80 e1 07 38 c1 7c bc 48 89 df e8
RSP: 0018:ffffc9000d45e800 EFLAGS: 00010246
RAX: 06888fa7a9ae5000 RBX: 000000000000d936 RCX: ffff88801f670000
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc9000d45e910 R08: ffffffff81827952 R09: 1ffff11003f847d2
R10: dffffc0000000000 R11: ffffed1003f847d3 R12: dffffc0000000000
R13: ffff8880121aaf80 R14: ffffc9000d45e9a8 R15: 1ffff92001a8bd14
FS:  00007fd2e7d036c0(0000) GS:ffff88808c593000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffc59221d28 CR3: 00000000364b2000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 bch2_prt_printf+0x1ba/0x6d0 fs/bcachefs/printbuf.c:183
 bch2_dirent_to_text+0x18e/0x3c0 fs/bcachefs/dirent.c:227
 __bch2_bkey_fsck_err+0x40b/0x580 fs/bcachefs/error.c:629
 __bch2_bkey_validate+0xa1f/0xed0 fs/bcachefs/bkey_methods.c:180
 bch2_bkey_validate+0x104/0x4f0 fs/bcachefs/bkey_methods.c:234
 journal_validate_key+0x73c/0x1020 fs/bcachefs/journal_io.c:373
 journal_entry_btree_root_validate+0x228/0x650 fs/bcachefs/journal_io.c:461
 bch2_journal_entry_validate+0x15f/0x220 fs/bcachefs/journal_io.c:855
 bch2_sb_clean_validate_late+0x290/0x540 fs/bcachefs/sb-clean.c:44
 bch2_read_superblock_clean+0xd7/0x260 fs/bcachefs/sb-clean.c:172
 bch2_fs_recovery+0x1fa/0x3e20 fs/bcachefs/recovery.c:706
 bch2_fs_start+0x310/0x620 fs/bcachefs/super.c:1059
 bch2_fs_get_tree+0x113e/0x18f0 fs/bcachefs/fs.c:2253
 vfs_get_tree+0x90/0x2b0 fs/super.c:1759
 do_new_mount+0x2cf/0xb70 fs/namespace.c:3881
 do_mount fs/namespace.c:4221 [inline]
 __do_sys_mount fs/namespace.c:4432 [inline]
 __se_sys_mount+0x38c/0x400 fs/namespace.c:4409
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd2e6f8e90a
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:00007fd2e7d02e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fd2e7d02ef0 RCX: 00007fd2e6f8e90a
RDX: 0000200000000000 RSI: 0000200000000040 RDI: 00007fd2e7d02eb0
RBP: 0000200000000000 R08: 00007fd2e7d02ef0 R09: 0000000000004401
R10: 0000000000004401 R11: 0000000000000246 R12: 0000200000000040
R13: 00007fd2e7d02eb0 R14: 000000000000595e R15: 0000200000000080
 </TASK>