Re: [PATCH v5] arm64: implement ftrace with regs

[Torsten Duwe]

On Mon, Dec 17, 2018 at 09:52:04AM +0530, Amit Daniel Kachhap wrote:
> There is no error message or crash but no useful output like below,
> 
> /sys/kernel/tracing # echo wake_up_process > set_graph_function
> /sys/kernel/tracing # echo function_graph > current_tracer
> /sys/kernel/tracing # cat trace
> # tracer: function_graph
> #
> # CPU  DURATION                  FUNCTION CALLS
> # |     |   |                     |   |   |   |

Confirmed. The graph tracer self-test passes, but when used, there is no
output.

        Torsten