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Date: Tue, 23 Sep 2025 11:38:21 +0200
From: Peter Zijlstra <peterz@infradead.org>
To: Steven Rostedt <rostedt@kernel.org>
Cc: linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org,
	bpf@vger.kernel.org, x86@kernel.org,
	Masami Hiramatsu <mhiramat@kernel.org>,
	Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
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	Ingo Molnar <mingo@kernel.org>, Jiri Olsa <jolsa@kernel.org>,
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	Florian Weimer <fweimer@redhat.com>, Sam James <sam@gentoo.org>,
	Kees Cook <kees@kernel.org>, Carlos O'Donell <codonell@redhat.com>
Subject: Re: [RESEND][PATCH v15 2/4] perf: Support deferred user callchains
Message-ID: <20250923093821.GB3419281@noisy.programming.kicks-ass.net>
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On Tue, Sep 23, 2025 at 05:35:15AM -0400, Steven Rostedt wrote:

> I even pushed this to a git tree. Not sure why it didn't get flagged.

I've been looking at this... how do I enable CONFIG_UWIND_USER ?

I suspect the problem is that its impossible to actually compile/use
this code.