Received: by 2002:a25:868d:0:0:0:0:0 with SMTP id z13csp1860445ybk; Thu, 21 May 2020 17:41:23 -0700 (PDT) X-Google-Smtp-Source: ABdhPJyNmuISAjp7/Wz7z69kyFSQFLoDFfirAW6c95QLubq6M7/dvqRoh5THlt3qVHpzH8QAWVYX X-Received: by 2002:a05:6402:1d81:: with SMTP id dk1mr1094821edb.143.1590108083293; Thu, 21 May 2020 17:41:23 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1590108083; cv=none; d=google.com; s=arc-20160816; b=n+u+/QvFp26L3fZG0laPDKrE4lI398p2gXW9yZgug8JN+ygFRygYkm6k6v+TsLYb/k eMFcF2zgn1V5cmqARB+cVGbdjLY8E0Pius1HnZhS+vxx/1OgQW2j8SEA6VVsRyAOtnjV ttLDb4DhnJlV6ma9fLbKiZpVyz0kB9vxyERJcfoJYbercovEr0wabQfEyWQrmCfHNJqP 5DCsZ5tkTwGQtRrNobvZ2Ly5wwcrjCGHRMkXpL4luecZCNRtETrxgqht/KCCBU/UdDnG xjbZbbsynmeXlOv5cOPEZP8qd6rcXbcYjFXpAgdDyaTkyJfp+p0dSMqyb3y++Qp58Mu2 QOZw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:user-agent:content-disposition :mime-version:reply-to:message-id:subject:cc:to:from:date :dkim-signature; bh=2n6Ggn2sYLIU2jBj7mWIs0cu/IJP+cdYCZ9Voqd/Mik=; b=XYmb+3bwaNN5PddxKeF8ekrVTI+pU8GXO6IKrjP/A9+dbb1qWXdvJePtLOUlE+QAHi k/F+cMpFXG8JNsQz3sC1Q41fHAG5gsuE+O7UWVcb0bZrgxZSwnEoadm0CjXXStgxNU9B Pbrb4AZxFpdI59IjitVMdtDQbfRDMmnjcLd80JScRjsYPCNM9Mr8URB7R1DwCB10bAdu eAxe6V3sfXvkD5GYEQrA/+/2J8Y6rJtilD5ixB/IfpX5VuaI9ymdaQZZo09BzUzP6TkD RFgJTbioFIi3bSuqfgu/hMznyc+xC6q5gwtnkSRh2de83X0MqjoblLZoi2wKwPG9hu5e 8PUw== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b=btURzFMv; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id p2si3683963eds.136.2020.05.21.17.40.58; Thu, 21 May 2020 17:41:23 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b=btURzFMv; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726899AbgEVAiv (ORCPT + 99 others); Thu, 21 May 2020 20:38:51 -0400 Received: from mail.kernel.org ([198.145.29.99]:38974 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726650AbgEVAiv (ORCPT ); Thu, 21 May 2020 20:38:51 -0400 Received: from paulmck-ThinkPad-P72.home (50-39-105-78.bvtn.or.frontiernet.net [50.39.105.78]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id A7461207D8; Fri, 22 May 2020 00:38:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1590107930; bh=3h8Qn+1ZHpVeahuSd6+R1zr7dTCLNVMAgzYYzw6rsEo=; h=Date:From:To:Cc:Subject:Reply-To:From; b=btURzFMvrRsvv8+ZuqT3XUdzRbGmqrdSwu+Gpf2MxXuV4TysKuzigxbhFDr0PRv9Y E6ncvlvSkBXa/rpUeO62JMtL0bOEG7dqgBxPT9OM5NL35WXcVmYsPhhJ226xoz/SuJ LMYZTHdftGpa+9PKh5LXBc8hqC+/t1z0AGm3NMBU= Received: by paulmck-ThinkPad-P72.home (Postfix, from userid 1000) id 759133522FEB; Thu, 21 May 2020 17:38:50 -0700 (PDT) Date: Thu, 21 May 2020 17:38:50 -0700 From: "Paul E. McKenney" To: stern@rowland.harvard.edu, parri.andrea@gmail.com, will@kernel.org, peterz@infradead.org, boqun.feng@gmail.com, npiggin@gmail.com, dhowells@redhat.com, j.alglave@ucl.ac.uk, luc.maranget@inria.fr, akiyks@gmail.com, dlustig@nvidia.com, joel@joelfernandes.org Cc: linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org, andriin@fb.com Subject: Some -serious- BPF-related litmus tests Message-ID: <20200522003850.GA32698@paulmck-ThinkPad-P72> Reply-To: paulmck@kernel.org MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.9.4 (2018-02-28) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello! Just wanted to call your attention to some pretty cool and pretty serious litmus tests that Andrii did as part of his BPF ring-buffer work: https://lore.kernel.org/bpf/20200517195727.279322-3-andriin@fb.com/ Thoughts? Thanx, Paul