linux-kernel - Re: [PATCH v5 6/8] selftests: tracing: Add a basic testcase for wprobe

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Message-Id: <20251112223054.6ae557a50f1d998c9b46861c@kernel.org>
Date: Wed, 12 Nov 2025 22:30:54 +0900
From: Masami Hiramatsu (Google) <mhiramat@...nel.org>
To: Mark Brown <broonie@...nel.org>
Cc: Catalin Marinas <catalin.marinas@....com>, Will Deacon
 <will@...nel.org>, Steven Rostedt <rostedt@...dmis.org>, Peter Zijlstra
 <peterz@...radead.org>, Ingo Molnar <mingo@...nel.org>, x86@...nel.org,
 Jinchao Wang <wangjinchao600@...il.com>, Mathieu Desnoyers
 <mathieu.desnoyers@...icios.com>, Thomas Gleixner <tglx@...utronix.de>,
 Borislav Petkov <bp@...en8.de>, Dave Hansen <dave.hansen@...ux.intel.com>,
 "H . Peter Anvin" <hpa@...or.com>, Alexander Shishkin
 <alexander.shishkin@...ux.intel.com>, Ian Rogers <irogers@...gle.com>,
 linux-kernel@...r.kernel.org, linux-trace-kernel@...r.kernel.org,
 linux-doc@...r.kernel.org, linux-perf-users@...r.kernel.org,
 linux-arm-kernel@...ts.infradead.org, Aishwarya.TCV@....com
Subject: Re: [PATCH v5 6/8] selftests: tracing: Add a basic testcase for
 wprobe

On Wed, 12 Nov 2025 12:15:03 +0000
Mark Brown <broonie@...nel.org> wrote:

> On Thu, Oct 30, 2025 at 09:09:52AM +0900, Masami Hiramatsu wrote:
> > Masami Hiramatsu (Google) <mhiramat@...nel.org> wrote:
> 
> > There is a single step execution code but only for default overflow_handlers.
> > This is a bit strange becuase other users can not set it up outside of
> > the arch dependent code. Even if it can, it is simply redundant.
> 
> > So I made changes below which allow users to set its own custom handler is
> > compatible with perf default overflow handlers.
> > I confirmed this works on both arm and arm64.
> 
> I think everyone who knows this code is really snowed under at the
> minute - can I suggest posting this as a fix for now?  This is still
> broken on arm64, we'll need a fix (or to disable the feature on the
> affected arches) one way or another for v6.19.

Sorry, let me drop it from for-next soon.

Thanks,

-- 
Masami Hiramatsu (Google) <mhiramat@...nel.org>