void stop(void)
The stop
action forces the process that is
firing the enabled probe to stop when it next leaves the
kernel, as if stopped by a proc
action.
The stop
action can be used to stop a
process at any DTrace probe point. This action can be used to
capture a program in a particular state that would be
difficult to achieve with a simple breakpoint and then attach
a traditional debugger such as gdb to the
process. You can also use the gcore utility
to save the state of a stopped process in a core file for
later analysis.