> > I'm not sure if I get your concerns but let me try to explain what happens > in such cases. please let me know if I misunderstood your point. > > 1. Install a probe using perf. > # ./perf probe sdt_tick:loop2 > > > > Does this explain your concerns? > No, this was not my concern. My concern is with two users on the same USDT. 1. First user enables the probe point but doesn't increment the ref_cnt. via uprobe_register 2. Second user tries to enable the probe point and also increments the ref_cnt via uprobe_register_refctr. 3. If the second user now removes the probe point via uprobe_unregister. 4. What is the state of the ref_cnt? -- Thanks and Regards Srikar
