From: Daniel Bristot de Oliveira <bristot@kernel.org>
To: Tao Zhou <tao.zhou@linux.dev>
Cc: Ingo Molnar <mingo@redhat.com>, Tom Zanussi <zanussi@kernel.org>,
Masami Hiramatsu <mhiramat@kernel.org>,
Juri Lelli <juri.lelli@redhat.com>,
Clark Williams <williams@redhat.com>,
John Kacur <jkacur@redhat.com>,
Peter Zijlstra <peterz@infradead.org>,
Thomas Gleixner <tglx@linutronix.de>,
Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
linux-rt-users@vger.kernel.org,
linux-trace-devel@vger.kernel.org, linux-kernel@vger.kernel.org,
Steven Rostedt <rostedt@goodmis.org>
Subject: Re: [PATCH V8 04/14] rtla/osnoise: Add osnoise top mode
Date: Sat, 4 Dec 2021 19:04:11 +0100 [thread overview]
Message-ID: <6234e96a-3e1f-77fb-8d18-6bff24095f90@kernel.org> (raw)
In-Reply-To: <edbe1a4be48b5fd9d7fd224e819918cdb943db4a.1638182284.git.bristot@kernel.org>
Tao
On 11/29/21 12:07, Daniel Bristot de Oliveira wrote:
> +int osnoise_top_main(int argc, char **argv)
> +{
> + struct osnoise_top_params *params;
> + struct trace_instance *trace;
> + struct osnoise_tool *record;
> + struct osnoise_tool *tool;
> + int return_value = 1;
> + int retval;
> +
> + params = osnoise_top_parse_args(argc, argv);
> + if (!params)
> + exit(1);
> +
> + tool = osnoise_init_top(params);
> + if (!tool) {
> + err_msg("Could not init osnoise top\n");
> + goto out_exit;
> + }
> +
> + retval = osnoise_top_apply_config(tool, params);
> + if (retval) {
> + err_msg("Could not apply config\n");
> + goto out_top;
> + }
> +
> + trace = &tool->trace;
> +
> + retval = enable_osnoise(trace);
> + if (retval) {
> + err_msg("Failed to enable osnoise tracer\n");
> + goto out_top;
> + }
> +
> + if (params->set_sched) {
> + retval = set_comm_sched_attr("osnoise/", ¶ms->sched_param);
> + if (retval)
You hit this case. It is correct to get this error if one sets SCHED_DEADLINE
without disabling the admission control.
However, there is also a problem here. The tracer was not disabled, and the
instance was not removed - so osnoise threads kept running after the error
message and exit().
I will fix this on all tools for v9.
Thanks for testing!
--- Daniel
> + osnoise_top_usage("Failed to set sched parameters\n");
> + }
> +
next prev parent reply other threads:[~2021-12-04 18:04 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-29 11:07 [PATCH V8 00/14] RTLA: An interface for osnoise/timerlat tracers Daniel Bristot de Oliveira
2021-11-29 11:07 ` [PATCH V8 01/14] rtla: Real-Time Linux Analysis tool Daniel Bristot de Oliveira
2021-11-29 11:07 ` [PATCH V8 02/14] rtla: Helper functions for rtla Daniel Bristot de Oliveira
2021-12-03 9:07 ` Tao Zhou
2021-12-03 14:52 ` Daniel Bristot de Oliveira
2021-11-29 11:07 ` [PATCH V8 03/14] rtla: Add osnoise tool Daniel Bristot de Oliveira
2021-11-30 15:35 ` Tao Zhou
2021-12-02 15:18 ` Daniel Bristot de Oliveira
2021-12-08 22:14 ` Steven Rostedt
2021-12-08 22:13 ` Steven Rostedt
2021-12-09 16:15 ` Daniel Bristot de Oliveira
2021-11-29 11:07 ` [PATCH V8 04/14] rtla/osnoise: Add osnoise top mode Daniel Bristot de Oliveira
2021-12-04 18:04 ` Daniel Bristot de Oliveira [this message]
2021-11-29 11:07 ` [PATCH V8 05/14] rtla/osnoise: Add the hist mode Daniel Bristot de Oliveira
2021-11-29 11:07 ` [PATCH V8 06/14] rtla: Add timerlat tool and timelart top mode Daniel Bristot de Oliveira
2021-12-03 9:13 ` Tao Zhou
2021-12-03 17:41 ` Daniel Bristot de Oliveira
2021-11-29 11:07 ` [PATCH V8 07/14] rtla/timerlat: Add timerlat hist mode Daniel Bristot de Oliveira
2021-12-03 9:17 ` Tao Zhou
2021-12-03 17:42 ` Daniel Bristot de Oliveira
2021-11-29 11:07 ` [PATCH V8 08/14] rtla: Add Documentation Daniel Bristot de Oliveira
2021-11-29 11:07 ` [PATCH V8 09/14] rtla: Add rtla osnoise man page Daniel Bristot de Oliveira
2021-11-29 11:07 ` [PATCH V8 10/14] rtla: Add rtla osnoise top documentation Daniel Bristot de Oliveira
2021-11-29 11:07 ` [PATCH V8 11/14] rtla: Add rtla osnoise hist documentation Daniel Bristot de Oliveira
2021-11-29 11:07 ` [PATCH V8 12/14] rtla: Add rtla timerlat documentation Daniel Bristot de Oliveira
2021-11-29 11:07 ` [PATCH V8 13/14] rtla: Add rtla timerlat top documentation Daniel Bristot de Oliveira
2021-11-29 11:07 ` [PATCH V8 14/14] rtla: Add rtla timerlat hist documentation Daniel Bristot de Oliveira
2021-12-04 13:25 ` [PATCH V8 00/14] RTLA: An interface for osnoise/timerlat tracers Tao Zhou
2021-12-04 14:16 ` Daniel Bristot de Oliveira
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