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Date: Tue, 23 Sep 2025 12:35:16 +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>,
	Josh Poimboeuf <jpoimboe@kernel.org>,
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Subject: Re: [RESEND][PATCH v15 2/4] perf: Support deferred user
 callchainshttps://lore.kernel.org/linux-trace-kernel/20250827193644.527334838@kernel.org/
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On Tue, Sep 23, 2025 at 06:28:48AM -0400, Steven Rostedt wrote:
> On Tue, 23 Sep 2025 11:38:21 +0200
> Peter Zijlstra <peterz@infradead.org> wrote:
> 
> > 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 ?
> 
> Hmm, maybe that's why it wasn't flagged.
> 
> > 
> > I suspect the problem is that its impossible to actually compile/use
> > this code.
> 
> It needs an arch to enable it. Here's the x86 patches that I was hoping
> would get in too:
> 
>   https://lore.kernel.org/linux-trace-kernel/20250827193644.527334838@kernel.org/

Hmm, let me go find that.