-p genric,dropmon prints stack trace for every packet

[igsilya]

Not a big issue, but a naive assumption that generic + dropmon will trace every packet and print the stack trace for the dropped ones, but it ends up printing the trace for every packet.

[atenart]

The --stack flag, used in the dropmon profile, is global. Once it is set stack traces are retrieved for every probe. We don't currently have per-probe flags available so changing the logic is not possible ATM, even though that can be an improvement to consider.

[vlrpl]

I agree it can be an improvement to consider.
Given this:
https://github.com/retis-org/retis/blob/main/retis/src/core/probe/kernel/bpf/include/common.h#L29

Adding at least some filter-in logic should not be much of a change (if memory serves, at least that was the intention if this was needed :)