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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id DC9EDC4332F for ; Mon, 30 Oct 2023 08:27:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232041AbjJ3I1T (ORCPT ); Mon, 30 Oct 2023 04:27:19 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47932 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231467AbjJ3I1S (ORCPT ); Mon, 30 Oct 2023 04:27:18 -0400 Received: from desiato.infradead.org (desiato.infradead.org [IPv6:2001:8b0:10b:1:d65d:64ff:fe57:4e05]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 402BFA7 for ; Mon, 30 Oct 2023 01:27:16 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=desiato.20200630; 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=SgtYiEbuKxzRlgP1dsKDl/ZpFr7gA4ucYSBfwNHXsEY=; b=P/hJC37gGMfNfOnjw7AS4EbYI+ FbGci2usXQtQc12SiLg2N/OaVi+6osTc3Q3uCv2j0Zd74PCzEGk4rpYXjyYX03hESXIkS1HeKZuOx pv0jR9r22TCFUUURKCFt5NxACGOnsPRDTPVDET3Lh4k1zqnMpG3LQGmSx9Mx5+WhO4q3taBdXYvuR mXE2liGl1PkiCVtHolnVCwn0z5Whr6L4L6PNPdv1PObde+DwcOJ/lxa7xTb5puHsySvUCmSjUGq6o Ub5L9d3fv/vUjqKt6885YOrA8mRJiHKoki4vWDh9r4ZpsNbOv2j2MAfHbEZOSjyWNUOpKCPhw2g+f H+2GZ5qw==; Received: from j130084.upc-j.chello.nl ([24.132.130.84] helo=noisy.programming.kicks-ass.net) by desiato.infradead.org with esmtpsa (Exim 4.96 #2 (Red Hat Linux)) id 1qxNbg-003kMD-38; Mon, 30 Oct 2023 08:26:45 +0000 Received: by noisy.programming.kicks-ass.net (Postfix, from userid 1000) id 9E5D5300478; Mon, 30 Oct 2023 09:26:44 +0100 (CET) Date: Mon, 30 Oct 2023 09:26:44 +0100 From: Peter Zijlstra To: Paul Gortmaker Cc: Borislav Petkov , Richard Purdie , Thomas Gleixner , x86@kernel.org, linux-kernel@vger.kernel.org Subject: Re: 32 bit qemu regression from v6.5 tip pull [6c480f222128 x86/alternative: Rewrite optimize_nops() some] Message-ID: <20231030082644.GK26550@noisy.programming.kicks-ass.net> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sun, Oct 29, 2023 at 02:41:46PM -0400, Paul Gortmaker wrote: > The TL;DR is that the Yocto folks encountered a regression in their > automated QA tests (after a move from v6.4 --> v6.5) where non-KVM > enabled boot tests on 32 bit x86 would (with ~2% frequency) splat with: You're sure you're not running into this here: https://lkml.kernel.org/r/20230706170537.95959-1-richard.henderson@linaro.org ?