BFS-fs: bfs_fill_super(): loop7 is unclean, continuing
------------[ cut here ]------------
!buffer_uptodate(bh)
WARNING: fs/buffer.c:1183 at mark_buffer_dirty+0x299/0x3f0 fs/buffer.c:1183, CPU#1: syz.7.1076/10286
Modules linked in:
CPU: 1 UID: 0 PID: 10286 Comm: syz.7.1076 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
RIP: 0010:mark_buffer_dirty+0x299/0x3f0 fs/buffer.c:1183
Code: 4c 89 f7 e8 09 d7 da ff 49 8b 3e be 40 00 00 00 5b 41 5c 41 5e 41 5f 5d e9 84 7f fb ff e8 0f 88 72 ff eb 8c e8 08 88 72 ff 90 <0f> 0b 90 e9 a5 fd ff ff e8 fa 87 72 ff 90 0f 0b 90 e9 cf fd ff ff
RSP: 0018:ffffc9001d32f608 EFLAGS: 00010202
RAX: ffffffff8251ef48 RBX: ffff8880321b60e8 RCX: ffff88802e918000
RDX: 0000000000000003 RSI: 0000000000000000 RDI: 0000000000000002
RBP: ffff888077f14001 R08: 00000000000011ab R09: 0000000000400000
R10: 0000000000023568 R11: ffffed1006436c1e R12: ffff888038955400
R13: ffff888052b00828 R14: ffff8880321b60e8 R15: 000000000000000a
FS:  00007f84bc9816c0(0000) GS:ffff8881257f5000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000001000 CR3: 000000004552f000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 bfs_move_block fs/bfs/file.c:44 [inline]
 bfs_move_blocks fs/bfs/file.c:57 [inline]
 bfs_get_block+0x5da/0xae0 fs/bfs/file.c:126
 __block_write_begin_int+0x6c6/0x1910 fs/buffer.c:2145
 block_write_begin+0x8d/0x120 fs/buffer.c:2256
 bfs_write_begin+0x35/0xd0 fs/bfs/file.c:180
 generic_perform_write+0x2e2/0x8f0 mm/filemap.c:4314
 generic_file_write_iter+0x14a/0x680 mm/filemap.c:4457
 new_sync_write fs/read_write.c:593 [inline]
 vfs_write+0x61d/0xb90 fs/read_write.c:686
 ksys_pwrite64 fs/read_write.c:793 [inline]
 __do_sys_pwrite64 fs/read_write.c:801 [inline]
 __se_sys_pwrite64 fs/read_write.c:798 [inline]
 __x64_sys_pwrite64+0x199/0x230 fs/read_write.c:798
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xe2/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f84bbb9aeb9
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f84bc981028 EFLAGS: 00000246 ORIG_RAX: 0000000000000012
RAX: ffffffffffffffda RBX: 00007f84bbe15fa0 RCX: 00007f84bbb9aeb9
RDX: 000000000000fdef RSI: 0000200000000140 RDI: 0000000000000005
RBP: 00007f84bbc08c1f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000e7c R11: 0000000000000246 R12: 0000000000000000
R13: 00007f84bbe16038 R14: 00007f84bbe15fa0 R15: 00007ffd510db478
 </TASK>