Re: [PATCH v2 0/2] Introduce the pkill_on_warn parameter

Steven Rostedt <[email protected]>
Newsgroups com.openwall.lists.kernel-hardening,org.kernel.vger.linux-arch,org.kernel.vger.linux-doc,org.kernel.vger.linux-fsdevel,org.kernel.vger.linux-hardening,org.kernel.vger.linux-kernel
Message-ID <[email protected]> 
On Sat, 20 Nov 2021 13:17:08 +0100
Marco Elver <[email protected]> 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[1] to read it.

-- Steve

[1] https://git.kernel.org/pub/scm/libs/libtrace/libtracefs.git/
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