From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from relay.hostedemail.com (smtprelay0014.hostedemail.com [216.40.44.14]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id DBC2E1BC07A; Tue, 24 Jun 2025 14:03:59 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=216.40.44.14 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750773842; cv=none; b=my5UpS72QtlqOzvagoaLcbFWhxI+keKVGZ6GL0EK27qqxLHF9OnjoiS+RvSBdp14at683I3/5QO9cgUK1qKAEp3oyDi2oWalo1fWuiwlqVA+3KRHeO2tgXJCGmadxAjXElEQmogSBDPdoaKNhIlV0s+SjRfNhTIl916uvYXOrTA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750773842; c=relaxed/simple; bh=A3fqxi1Gy38Ugk0YVhHa8CEMOpg2yAhTHWCTcVioxXo=; h=Date:From:To:Cc:Subject:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=IwCf/Z8vsw1JcOfEgXgPPqMJBjvfi7+5TyiCP0ejBRSHz50skh2UGG1Zt5Z+da3rdSW9DE3Ou7EYbXzslnAi7V9KcewD4gDgAwYBHa9OhhrIDqRxpMSUE8jcffHpMv9skyqCD5A3LR3a0azdk1K03kImol0MgVFg6/wack4Terc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=goodmis.org; spf=pass smtp.mailfrom=goodmis.org; arc=none smtp.client-ip=216.40.44.14 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=goodmis.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=goodmis.org Received: from omf19.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay01.hostedemail.com (Postfix) with ESMTP id 8EF091D7B90; Tue, 24 Jun 2025 14:03:51 +0000 (UTC) Received: from [HIDDEN] (Authenticated sender: rostedt@goodmis.org) by omf19.hostedemail.com (Postfix) with ESMTPA id 89D1C20027; Tue, 24 Jun 2025 14:03:47 +0000 (UTC) Date: Tue, 24 Jun 2025 10:03:46 -0400 From: Steven Rostedt To: Peter Zijlstra Cc: linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org, bpf@vger.kernel.org, x86@kernel.org, Masami Hiramatsu , Mathieu Desnoyers , Josh Poimboeuf , Ingo Molnar , Jiri Olsa , Namhyung Kim , Thomas Gleixner , Andrii Nakryiko , Indu Bhagat , "Jose E. Marchesi" , Beau Belgrave , Jens Remus , Linus Torvalds , Andrew Morton Subject: Re: [PATCH v10 06/14] unwind_user/deferred: Add deferred unwinding interface Message-ID: <20250624100346.37bae8d5@batman.local.home> In-Reply-To: <20250619091121.GF1613200@noisy.programming.kicks-ass.net> References: <20250611005421.144238328@goodmis.org> <20250611010428.770214773@goodmis.org> <20250618184620.GT1613376@noisy.programming.kicks-ass.net> <20250618150915.3e811f4b@gandalf.local.home> <20250619075008.GU1613376@noisy.programming.kicks-ass.net> <20250619045659.390cc014@batman.local.home> <20250619091121.GF1613200@noisy.programming.kicks-ass.net> X-Mailer: Claws Mail 3.17.8 (GTK+ 2.24.33; x86_64-pc-linux-gnu) Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Rspamd-Queue-Id: 89D1C20027 X-Stat-Signature: b5pscrbs7693m5s7gh6q8bzbh6qkg3hz X-Rspamd-Server: rspamout05 X-Session-Marker: 726F737465647440676F6F646D69732E6F7267 X-Session-ID: U2FsdGVkX1/ZDcuVGNr6IrYvNwwot/CijvMr9Ql6HhY= X-HE-Tag: 1750773827-572531 X-HE-Meta: U2FsdGVkX1/k3rL43ACSxNa5qBQc9cE/D2z+xFmXn37hoQbG5P66Zk2B5NEEFJukSYAelTM74e8+nxq5wRQqhEkwa53Xp4tT4AgJRevcNJhWKxOXtELL3Qo3gB2h8wKkWBDVLXcYaj/1jMtGQSGutaJxTKUKm+KH0CBXl4Vjn7EDucBUrgciLvAOYDe8Wc1+McguIo6mM9Fzs3n27i3gFK5Z0J0isuFY00OowigNTrI6DqVX8DhCsrLFUg59Ajpva06viqoERpY72RjKFyA19JAC1fDV/0Yu4IdSeYeB7odCcXgXsGqS0Ke6ih4EScckaQ5l+EM/H1fZXCzbFqKeV0ORPGUSAWUihWqdjP5QF3nD8XzwpOoWyPAlwPH7Ai37 On Thu, 19 Jun 2025 11:11:21 +0200 Peter Zijlstra wrote: > I feel much of this complication stems from the fact you're wanting to > make this perhaps too generic. I want to make it work for perf, ftrace, LTTng and BPF, where each has their own requirements, which tends to force making it generic. :-/ -- Steve