Hello nilfs maintainers/developers, This is a 31-day syzbot report for the nilfs subsystem. All related reports/information can be found at: https://syzkaller.appspot.com/upstream/s/nilfs During the period, 2 new issues were detected and 2 were fixed. In total, 13 issues are still open and 33 have been fixed so far. Some of the still happening issues: Ref Crashes Repro Title <1> 328 Yes WARNING in nilfs_sufile_set_segment_usage https://syzkaller.appspot.com/bug?extid=14e9f834f6ddecece094 <2> 258 Yes kernel BUG at fs/buffer.c:LINE! https://syzkaller.appspot.com/bug?extid=cfed5b56649bddf80d6e <3> 71 Yes INFO: task hung in nilfs_detach_log_writer https://syzkaller.appspot.com/bug?extid=e3973c409251e136fdd0 <4> 58 Yes WARNING in mark_buffer_dirty (5) https://syzkaller.appspot.com/bug?extid=cdfcae656bac88ba0e2d <5> 39 Yes kernel BUG in folio_end_writeback https://syzkaller.appspot.com/bug?extid=7e5cf1d80677ec185e63 <6> 11 No BUG: unable to handle kernel NULL pointer dereference in nilfs_segctor_do_construct https://syzkaller.appspot.com/bug?extid=5afc832d6dbb2fd17538 <7> 3 Yes general protection fault in folio_create_empty_buffers https://syzkaller.appspot.com/bug?extid=0ad741797f4565e7e2d2 --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@xxxxxxxxxxxxxxxx. To disable reminders for individual bugs, reply with the following command: #syz set <Ref> no-reminders To change bug's subsystems, reply with: #syz set <Ref> subsystems: new-subsystem You may send multiple commands in a single email message.