Re: [QUESTION] ftrace_test_recursion_trylock behaviour

2023-11-02 Thread Jiri Olsa
On Wed, Nov 01, 2023 at 01:45:56PM -0400, Steven Rostedt wrote: > On Wed, 1 Nov 2023 18:32:14 +0100 > Jiri Olsa wrote: > > > hi, > > I'm doing some testing on top of fprobes and noticed that the > > ftrace_test_recursion_trylock allows caller from the same context > > going through twice. > > >

Re: [QUESTION] ftrace_test_recursion_trylock behaviour

2023-11-01 Thread Steven Rostedt
On Wed, 1 Nov 2023 18:32:14 +0100 Jiri Olsa wrote: > hi, > I'm doing some testing on top of fprobes and noticed that the > ftrace_test_recursion_trylock allows caller from the same context > going through twice. > > The change below adds extra fprobe on stack_trace_print, which is > called withi

[QUESTION] ftrace_test_recursion_trylock behaviour

2023-11-01 Thread Jiri Olsa
hi, I'm doing some testing on top of fprobes and noticed that the ftrace_test_recursion_trylock allows caller from the same context going through twice. The change below adds extra fprobe on stack_trace_print, which is called within the sample_entry_handler and I can see it being executed with fol