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=-0.7 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham 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 BCF0BC43613 for ; Sat, 22 Jun 2019 04:27:02 +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 85EF12070B for ; Sat, 22 Jun 2019 04:27:02 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 85EF12070B 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]:38952 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.86_2) (envelope-from ) id 1heXcD-0003mw-Jz for qemu-devel@archiver.kernel.org; Sat, 22 Jun 2019 00:27:01 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:40061) by lists.gnu.org with esmtp (Exim 4.86_2) (envelope-from ) id 1heXbM-0003Lp-Sg for qemu-devel@nongnu.org; Sat, 22 Jun 2019 00:26:10 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1heXbL-0000Pq-Pf for qemu-devel@nongnu.org; Sat, 22 Jun 2019 00:26:08 -0400 Received: from indium.canonical.com ([91.189.90.7]:58890) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1heXbL-0000Mv-Jg for qemu-devel@nongnu.org; Sat, 22 Jun 2019 00:26:07 -0400 Received: from loganberry.canonical.com ([91.189.90.37]) by indium.canonical.com with esmtp (Exim 4.86_2 #2 (Debian)) id 1heXbH-0005Gh-QA for ; Sat, 22 Jun 2019 04:26:04 +0000 Received: from loganberry.canonical.com (localhost [127.0.0.1]) by loganberry.canonical.com (Postfix) with ESMTP id 317D32E81A1 for ; Sat, 22 Jun 2019 04:26:01 +0000 (UTC) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Date: Sat, 22 Jun 2019 04:17:26 -0000 From: Launchpad Bug Tracker <1824768@bugs.launchpad.net> To: qemu-devel@nongnu.org X-Launchpad-Notification-Type: bug X-Launchpad-Bug: product=qemu; status=Expired; importance=Undecided; assignee=None; X-Launchpad-Bug-Tags: multithreading raspberry tcg X-Launchpad-Bug-Information-Type: Public X-Launchpad-Bug-Private: no X-Launchpad-Bug-Security-Vulnerability: no X-Launchpad-Bug-Commenters: janitor pmaydell rth timemaster5 X-Launchpad-Bug-Reporter: TimeMaster (timemaster5) X-Launchpad-Bug-Modifier: Launchpad Janitor (janitor) References: <155531602468.14046.8896369782282114161.malonedeb@gac.canonical.com> Message-Id: <156117704655.2614.11038487406129698201.malone@loganberry.canonical.com> 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="18989"; Instance="launchpad-lazr.conf" X-Launchpad-Hash: 9b8b9a1c8250232528f054e93663886c41cec916 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 91.189.90.7 Subject: [Qemu-devel] [Bug 1824768] Re: Qemu ARMv7 TCG MultiThreading for i386 guest doesn't work 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 1824768 <1824768@bugs.launchpad.net> Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" [Expired for QEMU because there has been no activity for 60 days.] ** Changed in: qemu Status: Incomplete =3D> Expired -- = You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/1824768 Title: Qemu ARMv7 TCG MultiThreading for i386 guest doesn't work Status in QEMU: Expired Bug description: Using any Linux image (in this case Alpine Linux iso) I want to utilise all cores of my Raspberry with --accel,thread=3Dmulti. I know there is a probably still problem with memory ordering of the host, but I have also seen some very old commits which could potentially help with it. But anyway, with version qemu-i386 version 3.1.0 (Debian 1:3.1+dfsg-7) I can see OpenRC starting up services and then the kernel crash. With version QEMU emulator version 3.1.93 (v4.0.0-rc3-dirty) The whole machine crash with this error: Illegal instruction Using command: ./qemu-system-i386 -cdrom alpine.iso --accel tcg,thread=3Dmulti Full Console Output: qemu-system-i386: warning: Guest expects a stronger memory ordering than = the host provides This may cause strange/hard to debug errors Illegal instruction Kernel: Linux raspberrypi 4.14.98-v7+ #1200 SMP Tue Feb 12 20:27:48 GMT 2019 armv= 7l GNU/Linux CPU: ARMv7 Processor rev 5 (v7l) Features: half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt v= fpd32 lpae evtstrm 4 cores To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1824768/+subscriptions