WARNING: Re-reading the partition table failed with error 16: 设���或资源忙.
The kernel still uses the old table.
The new table will be used at the next reboot.
Syncing disks.
[root@ /]# mkswap /dev/sdc3
Setting up swapspace version 1, size = 329007 kB
[root@ /]# swapon /dev/sdc3