------------[ cut here ]------------ WARNING: CPU: 1 PID: 28988 at fs/buffer.c:1130 mark_buffer_dirty+0x2dd/0x500 Modules linked in: CPU: 1 PID: 28988 Comm: segctord Not tainted 6.4.0-rc2-syzkaller-00330-g0dd2a6fb1e34 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/28/2023 RIP: 0010:mark_buffer_dirty+0x2dd/0x500 fs/buffer.c:1130 Code: df e8 77 17 e0 ff 48 8b 3b be 04 00 00 00 5b 41 5c 41 5e 41 5f 5d e9 22 69 fc ff e8 3d 43 88 ff e9 71 ff ff ff e8 33 43 88 ff <0f> 0b e9 6d fd ff ff e8 27 43 88 ff 0f 0b e9 96 fd ff ff e8 1b 43 RSP: 0018:ffffc9001562f6d0 EFLAGS: 00010293 RAX: ffffffff8203396d RBX: ffff88807cf92e01 RCX: ffff88807e3e9dc0 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffffffff820336d4 R09: ffffed100f237d23 R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8880791be910 R13: 1ffff1100f39e691 R14: ffff888079cf3488 R15: ffff888079cf3478 FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f89482fe000 CR3: 000000002c469000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: nilfs_segctor_collect_dirty_files fs/nilfs2/segment.c:1988 [inline] nilfs_segctor_do_construct+0x352/0x6d30 fs/nilfs2/segment.c:2050 nilfs_segctor_construct+0x145/0x8c0 fs/nilfs2/segment.c:2404 nilfs_segctor_thread_construct fs/nilfs2/segment.c:2512 [inline] nilfs_segctor_thread+0x53a/0x1140 fs/nilfs2/segment.c:2595 kthread+0x2b8/0x350 kernel/kthread.c:379 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308