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=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 356BDC433E0 for ; Fri, 22 May 2020 19:37:28 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 0191E206D5 for ; Fri, 22 May 2020 19:37:28 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 0191E206D5 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=bugs.launchpad.net Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:42718 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jcDTz-0005iM-7s for qemu-devel@archiver.kernel.org; Fri, 22 May 2020 15:37:27 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:60990) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jcDSB-0003bc-N9 for qemu-devel@nongnu.org; Fri, 22 May 2020 15:35:35 -0400 Received: from indium.canonical.com ([91.189.90.7]:44542) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1jcDSA-0002G4-V8 for qemu-devel@nongnu.org; Fri, 22 May 2020 15:35:35 -0400 Received: from loganberry.canonical.com ([91.189.90.37]) by indium.canonical.com with esmtp (Exim 4.86_2 #2 (Debian)) id 1jcDS9-0000cP-GU for ; Fri, 22 May 2020 19:35:33 +0000 Received: from loganberry.canonical.com (localhost [127.0.0.1]) by loganberry.canonical.com (Postfix) with ESMTP id 6F4AF2E8076 for ; Fri, 22 May 2020 19:35:33 +0000 (UTC) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Date: Fri, 22 May 2020 19:25:55 -0000 From: Thomas Huth <1693649@bugs.launchpad.net> To: qemu-devel@nongnu.org X-Launchpad-Notification-Type: bug X-Launchpad-Bug: product=qemu; status=Fix Released; importance=Undecided; assignee=None; X-Launchpad-Bug-Information-Type: Public X-Launchpad-Bug-Private: no X-Launchpad-Bug-Security-Vulnerability: no X-Launchpad-Bug-Commenters: paul-whooppee th-huth X-Launchpad-Bug-Reporter: Paul Goyette (paul-whooppee) X-Launchpad-Bug-Modifier: Thomas Huth (th-huth) References: <149575946555.18286.18117412791023512529.malonedeb@chaenomeles.canonical.com> Message-Id: <159017555604.7915.4013692688620158864.malone@gac.canonical.com> Subject: [Bug 1693649] Re: x86 pause misbehaves with -cpu haswell X-Launchpad-Message-Rationale: Subscriber (QEMU) @qemu-devel-ml X-Launchpad-Message-For: qemu-devel-ml Precedence: bulk X-Generated-By: Launchpad (canonical.com); Revision="1f7bc749b40714a4cc10f5e4d787118a78037035"; Instance="production-secrets-lazr.conf" X-Launchpad-Hash: fb8fd90c195c3a8c6787cdd234be4799385c8706 Received-SPF: none client-ip=91.189.90.7; envelope-from=bounces@canonical.com; helo=indium.canonical.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/05/22 14:50:36 X-ACL-Warn: Detected OS = Linux 3.11 and newer [fuzzy] X-Spam_score_int: -65 X-Spam_score: -6.6 X-Spam_bar: ------ X-Spam_report: (-6.6 / 5.0 requ) BAYES_00=-1.9, HEADER_FROM_DIFFERENT_DOMAINS=0.249, RCVD_IN_DNSWL_HI=-5, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, URIBL_BLOCKED=0.001 autolearn=_AUTOLEARN X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: Bug 1693649 <1693649@bugs.launchpad.net> Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Ok, thanks for checking again! So I'm closing this ticket now. ** Changed in: qemu Status: Incomplete =3D> Fix Released -- = You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/1693649 Title: x86 pause misbehaves with -cpu haswell Status in QEMU: Fix Released Bug description: Using qemu-2.9.0 When booting NetBSD using '-cpu haswell -smp 4', the system fails to initialize the additional CPUs. It appears as though the "application processor" enters routine x86_pause() but never returns. x86_pause() is simply two assembler instructions: 'pause; ret;' Replacing the routine with 'nop; nop; ret;' allows the system to proceed, of course without the benefit of the pause instruction on spin-loops! Additionally, booting with '-cpu phenom -smp 4' also works, although the system does seem confused about the type of CPU being used. To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1693649/+subscriptions