Hello ext4 maintainers/developers, This is a 31-day syzbot report for the ext4 subsystem. All related reports/information can be found at: https://syzkaller.appspot.com/upstream/s/ext4 During the period, 6 new issues were detected and 0 were fixed. In total, 39 issues are still open and 134 have been fixed so far. Some of the still happening issues: Ref Crashes Repro Title <1> 893 Yes INFO: task hung in sync_inodes_sb (5) https://syzkaller.appspot.com/bug?extid=30476ec1b6dc84471133 <2> 784 Yes WARNING: locking bug in __ext4_ioctl https://syzkaller.appspot.com/bug?extid=a537ff48a9cb940d314c <3> 595 Yes WARNING: locking bug in ext4_ioctl https://syzkaller.appspot.com/bug?extid=a3c8e9ac9f9d77240afd <4> 237 Yes INFO: task hung in jbd2_journal_commit_transaction (5) https://syzkaller.appspot.com/bug?extid=3071bdd0a9953bc0d177 <5> 120 No WARNING in ext4_fileattr_get https://syzkaller.appspot.com/bug?extid=d6a7a43c85606b87babd <6> 111 Yes possible deadlock in ext4_xattr_inode_iget (3) https://syzkaller.appspot.com/bug?extid=ee72b9a7aad1e5a77c5c <7> 66 No INFO: task hung in ext4_stop_mmpd https://syzkaller.appspot.com/bug?extid=0dd5b81275fa083055d7 <8> 47 Yes kernel BUG in ext4_write_inline_data_end (2) https://syzkaller.appspot.com/bug?extid=0c89d865531d053abb2d <9> 31 Yes INFO: rcu detected stall in sys_unlink (3) https://syzkaller.appspot.com/bug?extid=c4f62ba28cc1290de764 <10> 30 Yes WARNING in fscrypt_fname_siphash https://syzkaller.appspot.com/bug?extid=340581ba9dceb7e06fb3 --- 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.
