------------[ cut here ]------------ WARNING: CPU: 1 PID: 5904 at fs/buffer.c:1176 mark_buffer_dirty+0x2ed/0x520 Modules linked in: CPU: 1 PID: 5904 Comm: segctord Not tainted 6.9.0-rc4-syzkaller-00266-g977b1ef51866 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 RIP: 0010:mark_buffer_dirty+0x2ed/0x520 fs/buffer.c:1176 Code: df e8 d7 77 dd ff 48 8b 3b be 04 00 00 00 5b 41 5c 41 5e 41 5f 5d e9 92 0e fc ff e8 9d 75 79 ff e9 6d ff ff ff e8 93 75 79 ff <0f> 0b e9 59 fd ff ff e8 87 75 79 ff 0f 0b e9 82 fd ff ff e8 7b 75 RSP: 0018:ffffc90005607730 EFLAGS: 00010293 RAX: ffffffff821c2fcd RBX: ffff888014f3a301 RCX: ffff88801faf3c00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffffffff821c2d20 R09: 1ffff1100c941657 R10: dffffc0000000000 R11: ffffed100c941658 R12: ffff888064a0b2b8 R13: 1ffff1100c94335d R14: ffff888064a19ae8 R15: ffff888064a19ad8 FS: 0000000000000000(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007faba4bbe108 CR3: 000000007b120000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: nilfs_segctor_collect_dirty_files fs/nilfs2/segment.c:1961 [inline] nilfs_segctor_do_construct+0x32f/0x6b20 fs/nilfs2/segment.c:2023 nilfs_segctor_construct+0x14d/0x930 fs/nilfs2/segment.c:2381 nilfs_segctor_thread_construct fs/nilfs2/segment.c:2489 [inline] nilfs_segctor_thread+0x53c/0x1140 fs/nilfs2/segment.c:2573 kthread+0x2ec/0x380 kernel/kthread.c:388 ret_from_fork+0x47/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244