Hello ext4 maintainers/developers, This is a 30-day syzbot report for ext4 subsystem. All related reports/information can be found at: https://syzkaller.appspot.com/upstream/s/ext4 During the period, 17 new issues were detected and 4 were fixed. In total, 94 issues are still open and 92 have been fixed so far. Some of the still happening issues: Crashes Repro Title 81778 Yes possible deadlock in jbd2_journal_lock_updates https://syzkaller.appspot.com/bug?extid=79e6bbabf3ce17357969 34932 Yes possible deadlock in __jbd2_log_wait_for_space https://syzkaller.appspot.com/bug?extid=fa1bbda326271b8808c9 6768 Yes WARNING in ext4_dirty_folio https://syzkaller.appspot.com/bug?extid=ecab51a4a5b9f26eeaa1 4301 Yes possible deadlock in dquot_commit (2) https://syzkaller.appspot.com/bug?extid=70ff52e51b7e7714db8a 846 Yes INFO: task hung in iterate_supers https://syzkaller.appspot.com/bug?extid=2349f5067b1772c1d8a5 817 Yes BUG: soft lockup in smp_call_function https://syzkaller.appspot.com/bug?extid=cce3691658bef1b12ac9 550 Yes INFO: task hung in __sync_dirty_buffer https://syzkaller.appspot.com/bug?extid=91dccab7c64e2850a4e5 388 No possible deadlock in ext4_map_blocks https://syzkaller.appspot.com/bug?extid=6de5025c31d33047d2a4 168 Yes possible deadlock in process_measurement (3) https://syzkaller.appspot.com/bug?extid=ccfcdc8958f74084f16d 167 No INFO: task hung in path_openat (7) https://syzkaller.appspot.com/bug?extid=950a0cdaa2fdd14f5bdc --- 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.
