------------[ cut here ]------------ WARNING: CPU: 1 PID: 7468 at fs/buffer.c:1130 mark_buffer_dirty+0x2dd/0x500 Modules linked in: CPU: 1 PID: 7468 Comm: segctord Not tainted 6.4.0-rc4-syzkaller-00204-gc43a6ff9f93f #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023 RIP: 0010:mark_buffer_dirty+0x2dd/0x500 fs/buffer.c:1130 Code: df e8 f7 18 e0 ff 48 8b 3b be 04 00 00 00 5b 41 5c 41 5e 41 5f 5d e9 22 69 fc ff e8 6d 44 88 ff e9 71 ff ff ff e8 63 44 88 ff <0f> 0b e9 6d fd ff ff e8 57 44 88 ff 0f 0b e9 96 fd ff ff e8 4b 44 RSP: 0018:ffffc900154e76d0 EFLAGS: 00010293 RAX: ffffffff82033acd RBX: ffff88802d1d5301 RCX: ffff88803e3e1dc0 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffffffff82033834 R09: ffffed1006c1bb5d R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8880360ddae0 R13: 1ffff11006c7fcf9 R14: ffff8880363fe7c8 R15: ffff8880363fe7b8 FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f89cefa7c48 CR3: 0000000040dc8000 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