Yes,when i use apt-get update ,the information of output is:
Reading Package Lists... Error!
E: Dynamic MMap ran out of room
E: Error occured while processing hplip (NewVersion1)
E: Problem with MergeList /var/lib/apt/lists/debian.cn99.com_debian_dists_unstable_main_binary-i386_Packages
E: The package lists or status file could not be parsed or opened.