And the system hang.
-(My intention was to track the system calls of t_aio, but what I typed would actually disable all traces from all process to t_aio, as if it was a tracing file, similar to ktrace.out.)
+My intention was to track the system calls of t_aio, but what I typed would actually disable all traces from all processes to ktrace.out, the default tracing file. Out of pure luck, a bug has been discovered.
# Setup a vkernel
To setup a vkernel, please consult [this man page](http://leaf.dragonflybsd.org/cgi/web-man?command=vkernel§ion=ANY).