2009.09.05
lsmod
./insmod syscall.o
lsmod
./syscall-test
# Go look at tail /var/log/syslog
./rmmod syscall
lsmod
# Go look at tail /var/log/syslog

Sep  5 18:39:00 darkstar kernel: syscall module: load and replace ulimit syscall 58.
Sep  5 18:39:35 darkstar kernel: syscall module: entering.
Sep  5 18:39:35 darkstar kernel: syscall module: leaving.
Sep  5 18:40:07 darkstar kernel: syscall module: unload and restore ulimit syscall 58.