Re: [RFC][PATCH 0/4] tracing: Add event-fork to trace tasks children
Steven Rostedt <[email protected]>
| Newsgroups | org.kernel.vger.linux-trace-users,org.kernel.vger.linux-kernel |
|---|---|
| Message-ID | <[email protected]> |
On Tue, 19 Apr 2016 23:05:28 -0300 Daniel Bristot de Oliveira <[email protected]> wrote: > On 04/19/2016 11:34 AM, Steven Rostedt wrote: > > This code adds the event-fork option that, when set, will have tasks > > with their PIDs in set_event_pid add their children PIDs when they > > fork. It will also remove their PID from the file on exit. > > That is a nice feature! I tested it and it works. But, look this... > > Set the event-fork, the current shell pid, and enable the trace: > > [root@f23 tracing]# echo event-fork > trace_options > [root@f23 tracing]# echo $$ > set_ftrace_pid event-fork does not affect function tracing. I'm currently working on patches to create a function-fork option for 4.8. -- Steve