From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 2C7B413B58A; Wed, 20 Nov 2024 16:03:24 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1732118605; cv=none; b=ARlfOLutSs6zUMqnattwFzuSR49fEUpHiAOTio0YbvIL1lXGhFQuWBBjekPv75SfL/Reoitjowr7NgVM4ign6bfg2iPjmFqiDA7kY4QkQVUps7Jyr6ohLxtFSbEADntyI1hdXdGkZ/cPidZG5RxmUqCOFDRNyUXTEcEOgKEo3ig= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1732118605; c=relaxed/simple; bh=l9At4QAU1UWOdiHd0AM/zaIAhJIXZNKutllsFxhd04c=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=ovfen8eFRUGC4ijEPOY/ufR7D838CcGe2ZXMv21Q+N7izwqpoTVahfTAuX6Tary8DltZmxA3kn3zJVJNTXIsafZoUF4u+FKQW50uoPxj11p3U+JzeX0Irkdb68IBTwLmkdTFdcXpAxgXaV6QeOpXN7jKg8ST8vhCKsZ8YsNpp7s= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=aBRUWNLH; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="aBRUWNLH" Received: by smtp.kernel.org (Postfix) with ESMTPSA id DA3DCC4CECD; Wed, 20 Nov 2024 16:03:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1732118604; bh=l9At4QAU1UWOdiHd0AM/zaIAhJIXZNKutllsFxhd04c=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=aBRUWNLHRfZeQXMu7YAN3oI6Uslc8DdiOozdXsGOLr5vSQVyQBykU8uvU1q668mLY TMtblbKYRnL24mIoJatHJ2AZiGKghQBFG/eTgfk4sIjgVRqe8TfyJ/xk2vwnX1WnHA wLA6aGH16h/F9Bis7foCon/OkCF9RPqyCsY9TCjStwVdBSUbWembvOCPmjIF4GOvVj tvbF11Dc4XbXwkRf0KNuvjtSsjT634wGzdQ1R5MtHwraGXLVV/LWT0FSyqQ25APhJs coRzeI/IFJZzzvtDkp8ZglyDCN+ym0jqz5AWZqyiCK8smJvW+qPsrJTsUl1y8VlJI2 +dPiw54jhcWWQ== Date: Wed, 20 Nov 2024 17:03:13 +0100 From: Ingo Molnar To: Peter Zijlstra Cc: Andrii Nakryiko , Linus Torvalds , linux-trace-kernel@vger.kernel.org, linux-mm@kvack.org, akpm@linux-foundation.org, oleg@redhat.com, rostedt@goodmis.org, mhiramat@kernel.org, bpf@vger.kernel.org, linux-kernel@vger.kernel.org, jolsa@kernel.org, paulmck@kernel.org, willy@infradead.org, surenb@google.com, mjguzik@gmail.com, brauner@kernel.org, jannh@google.com, mhocko@kernel.org, Andrii Nakryiko , vbabka@suse.cz, shakeel.butt@linux.dev, hannes@cmpxchg.org, Liam.Howlett@oracle.com, lorenzo.stoakes@oracle.com, david@redhat.com, arnd@arndb.de, richard.weiyang@gmail.com, zhangpeng.00@bytedance.com, linmiaohe@huawei.com, viro@zeniv.linux.org.uk, hca@linux.ibm.com, Mark Rutland , Will Deacon , linux-arm-kernel , Catalin Marinas , Kernel Team Subject: Re: [PATCH v4 tip/perf/core 0/4] uprobes,mm: speculative lockless VMA-to-uprobe lookup Message-ID: References: <20241028010818.2487581-1-andrii@kernel.org> <20241120154323.GA24774@noisy.programming.kicks-ass.net> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20241120154323.GA24774@noisy.programming.kicks-ass.net> * Peter Zijlstra wrote: > On Wed, Nov 20, 2024 at 07:40:15AM -0800, Andrii Nakryiko wrote: > > Linus, > > > > I'm not sure what's going on here, this patch set seems to be in some > > sort of "ignore list" on Peter's side with no indication on its > > destiny. > > *sigh* it is not, but my inbox is like drinking from a firehose :/ And I've been considering that particular series WIP for two reasons: 1) Oleg was still unconvinced about patch 5/5 in the v2 discussion. Upon re-reading it I think he might have come around and has agreed to the current approach - but sending a v3 & not seeing Oleg object would ascertain that. 2) There was a build failure reported against -v2 at: https://lore.kernel.org/all/202410050745.2Nuvusy4-lkp@intel.com/t.mbox.gz We cannot and will not merge patches with build failures. Andrii did get some other uprobes scalability work merged in v6.13: - Switch to RCU Tasks Trace flavor for better performance (Andrii Nakryiko) - Massively increase uretprobe SMP scalability by SRCU-protecting the uretprobe lifetime (Andrii Nakryiko) So we've certainly not been ignoring his patches, to the contrary ... Thanks, Ingo