目录索引已满，这个 fsck 结果正常吗？

Question

我发现这些在我的/var/log/消息：

kernel: EXT4-fs warning (device md2): ext4_dx_add_entry: Directory index full!
kernel: EXT4-fs warning (device md2): ext4_dx_add_entry: Directory index full!
kernel: EXT4-fs warning (device md2): ext4_dx_add_entry: Directory index full!

我使用救援系统/映像重新启动了系统，没有安装驱动器，而是像这样运行了 fsck：fsck -f /dev/md1然后fsck -f /dev/md2

这是结果：

root@rescue ~ # fsck -f /dev/md1
fsck from util-linux 2.20.1
e2fsck 1.42.5 (29-Jul-2012)
Pass 1: Checking inodes, blocks, and sizes
Pass 2: Checking directory structure
Pass 3: Checking directory connectivity
Pass 4: Checking reference counts
Pass 5: Checking group summary information
/dev/md1: 39/131072 files (28.2% non-contiguous), 47998/524224 blocks
root@rescue ~ # fsck -f /dev/md2
fsck from util-linux 2.20.1
e2fsck 1.42.5 (29-Jul-2012)
Pass 1: Checking inodes, blocks, and sizes
Pass 2: Checking directory structure
Pass 3: Checking directory connectivity
Pass 4: Checking reference counts
Pass 5: Checking group summary information
/dev/md2: 33915958/121020416 files (0.5% non-contiguous), 119497991/484052208 blocks
root@rescue ~ #

index full这个 fsck 结果看起来还好吗？这是我第一次使用它。这些错误有什么值得担心的吗？

编辑：这是命令的输出df -i

Filesystem            Inodes   IUsed   IFree IUse% Mounted on
/dev/md2             121020416 33929994 87090422   29% /
tmpfs                4109010       2 4109008    1% /dev/shm
/dev/md1              131072      39  131033    1% /boot