Re: [PATCH v2 0/2] Introduce the pkill_on_warn parameter
From: Steven Rostedt
Date: Mon Nov 22 2021 - 11:21:19 EST
On Sat, 20 Nov 2021 13:17:08 +0100
Marco Elver <elver@xxxxxxxxxx> wrote:
> I think userspace would want something other than perf tool to handle it
> of course. There are several options:
> 1. Open trace pipe to be notified (/sys/kernel/tracing/trace_pipe).
> This already includes the pid.
I would suggest using /sys/kernel/tracing/per_cpu/cpu*/trace_pipe_raw
and use libtracefs to read it.