linux-kernel - Re: [PATCH] kprobes: Print an error if probe is rejected

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Message-ID: <20210611154021.008537b0@gandalf.local.home>
Date:   Fri, 11 Jun 2021 15:40:21 -0400
From:   Steven Rostedt <rostedt@...dmis.org>
To:     "Naveen N. Rao" <naveen.n.rao@...ux.vnet.ibm.com>
Cc:     Masami Hiramatsu <mhiramat@...nel.org>,
        "Aneesh Kumar K.V" <aneesh.kumar@...ux.ibm.com>,
        linux-kernel@...r.kernel.org, Peter Zijlstra <peterz@...radead.org>
Subject: Re: [PATCH] kprobes: Print an error if probe is rejected

On Fri, 11 Jun 2021 19:25:38 +0530
"Naveen N. Rao" <naveen.n.rao@...ux.vnet.ibm.com> wrote:

> We also have perf_event_open() as an interface to add probes, and I 
> don't think it would be helpful to require all tools to utilize the 
> error log from tracefs for this purpose.

The there should be a perf interface to read the errors. I agree with
Masami. Let's not have console logs for probe errors.

-- Steve