Trace syscall errors with ktap.
...
node sys_exit_connect 115 Operation now in progress
node sys_exit_connect 115 Operation now in progress
node sys_exit_connect 115 Operation now in progress
node sys_exit_connect 115 Operation now in progress
node sys_exit_epoll_ctl 2 No such file or directory
node sys_exit_connect 115 Operation now in progress
...
MIT