NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds ------------[ cut here ]------------ WARNING: CPU: 1 PID: 6025 at include/linux/backing-dev.h:283 inode_to_wb include/linux/backing-dev.h:283 [inline] WARNING: CPU: 1 PID: 6025 at include/linux/backing-dev.h:283 account_page_dirtied+0x5b8/0x7e0 mm/page-writeback.c:2430 Modules linked in: CPU: 1 PID: 6025 Comm: segctord Not tainted 5.11.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 RIP: 0010:inode_to_wb include/linux/backing-dev.h:283 [inline] RIP: 0010:account_page_dirtied+0x5b8/0x7e0 mm/page-writeback.c:2430 Code: c1 ea 03 80 3c 02 00 0f 85 11 02 00 00 49 8b 85 a8 01 00 00 be ff ff ff ff 48 8d 78 70 e8 50 cc 9e 06 85 c0 0f 85 fc fb ff ff <0f> 0b e9 f5 fb ff ff 48 89 ee 4c 89 ef e8 06 00 2c 00 e9 a9 fb ff RSP: 0018:ffffc9000184f8d0 EFLAGS: 00010046 RAX: 0000000000000000 RBX: ffff888145fd2000 RCX: 0000000000000001 RDX: 0000000000000000 RSI: ffffffff888ad5a0 RDI: ffffffff88ddad60 RBP: ffffea0000735640 R08: 0000000000000000 R09: ffffffff8c2f268f R10: fffffbfff185e4d1 R11: 0000000000000001 R12: ffff88802d7f0490 R13: ffff88802d7f02e8 R14: ffff88802d7f0138 R15: ffffea0000735648 FS: 0000000000000000(0000) GS:ffff8880b9f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f9ae01ee378 CR3: 000000001e12d000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __set_page_dirty+0x62/0x2a0 fs/buffer.c:608 mark_buffer_dirty+0x2c2/0x3e0 fs/buffer.c:1137 nilfs_btree_propagate_p fs/nilfs2/btree.c:1890 [inline] nilfs_btree_propagate+0x3f4/0xc80 fs/nilfs2/btree.c:2086 nilfs_bmap_propagate+0x6e/0x150 fs/nilfs2/bmap.c:337 nilfs_collect_dat_data+0x3f/0xa0 fs/nilfs2/segment.c:625 nilfs_segctor_apply_buffers+0x156/0x3f0 fs/nilfs2/segment.c:1009 nilfs_segctor_scan_file+0x3e0/0x6c0 fs/nilfs2/segment.c:1048 nilfs_segctor_collect_blocks fs/nilfs2/segment.c:1224 [inline] nilfs_segctor_collect fs/nilfs2/segment.c:1494 [inline] nilfs_segctor_do_construct+0x1377/0x6060 fs/nilfs2/segment.c:2036 nilfs_segctor_construct+0x637/0x940 fs/nilfs2/segment.c:2372 nilfs_segctor_thread_construct fs/nilfs2/segment.c:2480 [inline] nilfs_segctor_thread+0x36d/0xda0 fs/nilfs2/segment.c:2563 kthread+0x36f/0x450 kernel/kthread.c:292 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296