From: Steven Rostedt <rostedt@kernel.org>
To: Peter Zijlstra <peterz@infradead.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>,
Ingo Molnar <mingo@kernel.org>, Jiri Olsa <jolsa@kernel.org>,
Arnaldo Carvalho de Melo <acme@kernel.org>,
Namhyung Kim <namhyung@kernel.org>,
Thomas Gleixner <tglx@linutronix.de>,
Andrii Nakryiko <andrii@kernel.org>,
Indu Bhagat <indu.bhagat@oracle.com>,
"Jose E. Marchesi" <jemarch@gnu.org>,
Beau Belgrave <beaub@linux.microsoft.com>,
Jens Remus <jremus@linux.ibm.com>,
Linus Torvalds <torvalds@linux-foundation.org>,
Andrew Morton <akpm@linux-foundation.org>,
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 callchainshttps://lore.kernel.org/linux-trace-kernel/20250827193644.527334838@kernel.org/
Date: Tue, 23 Sep 2025 06:28:48 -0400 [thread overview]
Message-ID: <20250923062848.0bc4ff2b@batman.local.home> (raw)
In-Reply-To: <20250923093821.GB3419281@noisy.programming.kicks-ass.net>
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, but I had a branch that applied all the necessary patches :-/
-- Steve
next prev parent reply other threads:[~2025-09-23 10:28 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-09-08 17:14 [RESEND][PATCH v15 0/4] perf: Support the deferred unwinding infrastructure Steven Rostedt
2025-09-08 17:14 ` [RESEND][PATCH v15 1/4] unwind deferred: Add unwind_user_get_cookie() API Steven Rostedt
2025-09-08 17:14 ` [RESEND][PATCH v15 2/4] perf: Support deferred user callchains Steven Rostedt
2025-09-23 9:19 ` Peter Zijlstra
2025-09-23 9:35 ` Steven Rostedt
2025-09-23 9:38 ` Peter Zijlstra
2025-09-23 10:28 ` Steven Rostedt [this message]
2025-09-23 10:35 ` [RESEND][PATCH v15 2/4] perf: Support deferred user callchainshttps://lore.kernel.org/linux-trace-kernel/20250827193644.527334838@kernel.org/ Peter Zijlstra
2025-09-23 10:01 ` [RESEND][PATCH v15 2/4] perf: Support deferred user callchains Peter Zijlstra
2025-09-23 10:32 ` Peter Zijlstra
2025-09-23 12:36 ` Steven Rostedt
2025-10-03 19:56 ` Steven Rostedt
2025-09-08 17:14 ` [RESEND][PATCH v15 3/4] perf: Have the deferred request record the user context cookie Steven Rostedt
2025-09-08 17:14 ` [RESEND][PATCH v15 4/4] perf: Support deferred user callchains for per CPU events Steven Rostedt
2025-09-08 17:21 ` [RESEND][PATCH v15 0/4] perf: Support the deferred unwinding infrastructure Steven Rostedt
2025-09-16 14:41 ` Steven Rostedt
2025-09-18 11:46 ` Peter Zijlstra
2025-09-18 15:18 ` Steven Rostedt
2025-09-18 17:24 ` Peter Zijlstra
2025-09-18 17:32 ` Peter Zijlstra
2025-09-18 19:10 ` Steven Rostedt
2025-09-19 23:34 ` Josh Poimboeuf
2025-09-21 23:33 ` Steven Rostedt
2025-09-22 7:23 ` Peter Zijlstra
2025-09-22 14:17 ` Peter Zijlstra
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