linux-kernel - Re: [PATCH] selftests/tracing: Add basic test for trace_marker

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Message-ID: <20251014161403.1443c21f@gandalf.local.home>
Date: Tue, 14 Oct 2025 16:14:03 -0400
From: Steven Rostedt <rostedt@...dmis.org>
To: Shuah Khan <skhan@...uxfoundation.org>
Cc: LKML <linux-kernel@...r.kernel.org>, Linux Trace Kernel
 <linux-trace-kernel@...r.kernel.org>, linux-kselftest@...r.kernel.org,
 Masami Hiramatsu <mhiramat@...nel.org>, Mathieu Desnoyers
 <mathieu.desnoyers@...icios.com>, Linus Torvalds
 <torvalds@...ux-foundation.org>
Subject: Re: [PATCH] selftests/tracing: Add basic test for trace_marker_raw
 file



Shuah,

After Masami gives an ack, could you take this through your tree.

I don't think it's urgent, but I want to make sure it gets upstream.

-- Steve


On Tue, 14 Oct 2025 14:51:49 -0400
Steven Rostedt <rostedt@...dmis.org> wrote:

> From: Steven Rostedt <rostedt@...dmis.org>
> 
> Commit 64cf7d058a00 ("tracing: Have trace_marker use per-cpu data to read
> user space") made an update that fixed both trace_marker and
> trace_marker_raw. But the small difference made to trace_marker_raw had a
> blatant bug in it that any basic testing would have uncovered.
> Unfortunately, the self tests have tests for trace_marker but nothing for
> trace_marker_raw which allowed the bug to get upstream.
> 
> Add basic selftests to test trace_marker_raw so that this doesn't happen
> again.
> 
> Signed-off-by: Steven Rostedt (Google) <rostedt@...dmis.org>
>