------------[ cut here ]------------ WARNING: CPU: 1 PID: 10326 at fs/buffer.c:1081 mark_buffer_dirty+0x394/0x7d0 Modules linked in: CPU: 1 PID: 10326 Comm: segctord Not tainted 6.1.85-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 RIP: 0010:mark_buffer_dirty+0x394/0x7d0 fs/buffer.c:1081 Code: e9 e0 ff 48 8b 7d 00 be 04 00 00 00 5b 41 5c 41 5d 41 5e 41 5f 5d e9 0b 6a fc ff e8 06 74 89 ff e9 42 ff ff ff e8 fc 73 89 ff <0f> 0b e9 b3 fc ff ff e8 f0 73 89 ff 0f 0b e9 f6 fc ff ff e8 e4 73 RSP: 0000:ffffc90004d076c8 EFLAGS: 00010293 RAX: ffffffff820122f4 RBX: ffff888050f56001 RCX: ffff888079fa9dc0 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffffffff82011fa1 R09: ffffed100a359ce9 R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff1100af6f35b R13: 1ffff1100af6f35d R14: ffff888057b79ae8 R15: ffff888051ace740 FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f36abdad988 CR3: 00000000229f4000 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:2000 [inline] nilfs_segctor_do_construct+0x33c/0x7190 fs/nilfs2/segment.c:2062 nilfs_segctor_construct+0x145/0x8c0 fs/nilfs2/segment.c:2416 nilfs_segctor_thread_construct fs/nilfs2/segment.c:2524 [inline] nilfs_segctor_thread+0x536/0x1130 fs/nilfs2/segment.c:2607 kthread+0x28d/0x320 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308