NILFS (loop0): discard dirty block: blocknr=0, size=4096
------------[ cut here ]------------
WARNING: CPU: 0 PID: 41 at fs/buffer.c:1193 mark_buffer_dirty+0x2dd/0x500
Modules linked in:
CPU: 0 PID: 41 Comm: kworker/u4:2 Not tainted 6.5.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/03/2023
Workqueue: writeback wb_workfn (flush-7:0)
RIP: 0010:mark_buffer_dirty+0x2dd/0x500 fs/buffer.c:1193
Code: df e8 c7 19 e0 ff 48 8b 3b be 04 00 00 00 5b 41 5c 41 5e 41 5f 5d e9 62 5e fc ff e8 1d 5f 87 ff e9 71 ff ff ff e8 13 5f 87 ff <0f> 0b e9 6d fd ff ff e8 07 5f 87 ff 0f 0b e9 96 fd ff ff e8 fb 5e
RSP: 0018:ffffc90000b27230 EFLAGS: 00010293

RAX: ffffffff8204a65d RBX: ffff8880757d0101 RCX: ffff888017251dc0
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffff8204a3c4 R09: 1ffff1100eaf2b22
R10: dffffc0000000000 R11: ffffed100eaf2b23 R12: ffff888075795910
R13: dffffc0000000000 R14: ffffc90000b272a0 R15: 1ffff92000164e54
FS:  0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020004280 CR3: 00000000795c8000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __nilfs_mark_inode_dirty+0x105/0x280 fs/nilfs2/inode.c:1115
 nilfs_dirty_inode+0x164/0x200 fs/nilfs2/inode.c:1148
 __mark_inode_dirty+0x305/0xd90 fs/fs-writeback.c:2430
 mark_inode_dirty_sync include/linux/fs.h:2153 [inline]
 __writeback_single_inode+0x3bd/0xfa0 fs/fs-writeback.c:1628
 writeback_sb_inodes+0x8e3/0x11d0 fs/fs-writeback.c:1894
 __writeback_inodes_wb+0x11b/0x260 fs/fs-writeback.c:1965
 wb_writeback+0x461/0xc60 fs/fs-writeback.c:2072
 wb_check_old_data_flush fs/fs-writeback.c:2176 [inline]
 wb_do_writeback fs/fs-writeback.c:2229 [inline]
 wb_workfn+0xbb5/0xff0 fs/fs-writeback.c:2257
 process_one_work+0x92c/0x12c0 kernel/workqueue.c:2597
 worker_thread+0xa63/0x1210 kernel/workqueue.c:2748
 kthread+0x2b8/0x350 kernel/kthread.c:389
 ret_from_fork+0x2e/0x60 arch/x86/kernel/process.c:145
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:296
RIP: 0000:0x0
Code: Unable to access opcode bytes at 0xffffffffffffffd6.
RSP: 0000:0000000000000000 EFLAGS: 00000000 ORIG_RAX: 0000000000000000
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>