我有一个戴尔 XPS 15 9550。我已经在它上面运行 Ubuntu 16.10 四个月了，没有发生任何戏剧性的变化。
两天前，我升级到Ubuntu 17.04。升级后大约一个小时，我的硬盘驱动器重新安装为只读模式。当我跳到 tty 屏幕时，出现了：
[ 746.341551] EXT4-fs error (device nvme0n1p7): ext4_find_entry:1463: inode #525023: comm NetworkManager: reading directory iblock 0
[ 746.343318] EXT4-fs error (device nvme0n1p7): ext4_find_entry:1463: inode #524289: comm pool: reading directory iblock 0
[ 746.356125] EXT4-fs error (device nvme0n1p7): ext4_find_entry:1463: inode #11272213: comm systemd-udevd: reading directory iblock 0
[ 746.356139] EXT4-fs error (device nvme0n1p7): ext4_find_entry:1463: inode #11272210: comm systemd-udevd: reading directory iblock 0
[ 746.356332] EXT4-fs error (device …