From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-0.8 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 25209C433E0 for ; Mon, 22 Jun 2020 08:19:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 01EE92068F for ; Mon, 22 Jun 2020 08:19:51 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="y4UGOrjd" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726370AbgFVITt (ORCPT ); Mon, 22 Jun 2020 04:19:49 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56320 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726080AbgFVITt (ORCPT ); Mon, 22 Jun 2020 04:19:49 -0400 Received: from merlin.infradead.org (unknown [IPv6:2001:8b0:10b:1231::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EB68CC061794 for ; Mon, 22 Jun 2020 01:19:48 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=merlin.20170209; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=rYw04hwsJEB97m8It9k5K0reIDQ2667gp8U3Y7MXakY=; b=y4UGOrjdI8Kb5oATsBYmmSzaZt y2WgvH7nECQavnlt+kzLVye3ErIkEeKc9om8RbT0fRQBeOpC7kSNsKDXlzwv9UmRJ9I9ZKIFmBREd klIopMr3TKyBdH1Ba37xZyFn09O4sOI4t0iKQPDSdwLQlddXxuwk65pBo5Fjb+auy9YZIOzodsK1S D6vV/x8agKIYs2LYskQyCHaDe3CiV8oBaFGlBisEo4Ngkh64whnhEqoWzqSfHiwXLnfZPV46eEEAg rFkOT5gokg/Ha7xNQfSekm7LCvZ1JMIv9I+0Pih7gCWQlfiy8t6JuvnSayZIDXqpU0gkdllnwB0gl Jk74/n6w==; Received: from j217100.upc-j.chello.nl ([24.132.217.100] helo=noisy.programming.kicks-ass.net) by merlin.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux)) id 1jnHft-00030R-PV; Mon, 22 Jun 2020 08:19:29 +0000 Received: from hirez.programming.kicks-ass.net (hirez.programming.kicks-ass.net [192.168.1.225]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by noisy.programming.kicks-ass.net (Postfix) with ESMTPS id 97F7A301631; Mon, 22 Jun 2020 10:18:58 +0200 (CEST) Received: by hirez.programming.kicks-ass.net (Postfix, from userid 1000) id 7763C2BF7CC09; Mon, 22 Jun 2020 10:18:58 +0200 (CEST) Date: Mon, 22 Jun 2020 10:18:58 +0200 From: Peter Zijlstra To: Linus Torvalds Cc: Kees Cook , Guenter Roeck , Eric Biggers , x86 , Linux Kernel Mailing List , Ingo Molnar Subject: Re: [tip: sched/urgent] sched: Fix RANDSTRUCT build fail Message-ID: <20200622081858.GD577403@hirez.programming.kicks-ass.net> References: <159178525684.17951.17825196124597318263.tip-bot2@tip-bot2> <202006192008.337CB5212E@keescook> <20200622081027.GM576888@hirez.programming.kicks-ass.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200622081027.GM576888@hirez.programming.kicks-ass.net> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Jun 22, 2020 at 10:10:27AM +0200, Peter Zijlstra wrote: > On Sat, Jun 20, 2020 at 09:32:26AM -0700, Linus Torvalds wrote: > > Peter/Ingo? > > I have the below (and a whole fair number of even more patches), but > I've been struggling with a possibly related NULL pointer deref, which > is why I've been holding off on landing this. FYI the NULL pointer thing: https://lkml.kernel.org/r/20200620184622.GA19696@paulmck-ThinkPad-P72