OSP 2021 Fall operating system principles and labs coursewares of OSP 2021 Fall coursewares Homeworks homeworks ->HW02 (2021.11) Compare process model with thread model (Note: The report shall be submitted before 11.26) Labs labs ->>lab09 Add a new system call into the linux kernel ->lab08 copy one directory using multi-threads ->lab07 copy one directory using multi-processes readings General Public License, GPLv3 Bibliography OSP Bibliography Research Institutions SOSP OSDI