then I invoke a emerge command . it errors with "no space left on device"
the output of "df -h" shows that all devices have more than 30% available space.
I suspect the filesystem is broken, then i invoke 'e2fsck -f'.
there is nothing wrong
i try to mkdir on /, it also errors with "no space"
but when i vi a exists file , it can successfully write back to device
well, I used to learn about some knowledge about File System, i guess
i run out the inode
I 'e2fsck' again on device, the output shows that I run out my inode indeed
