From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:58950) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZH1P0-0006a8-LE for qemu-devel@nongnu.org; Sun, 19 Jul 2015 23:06:03 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ZH1Ox-000867-FE for qemu-devel@nongnu.org; Sun, 19 Jul 2015 23:06:02 -0400 Received: from indium.canonical.com ([91.189.90.7]:40522) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZH1Ox-00085W-9F for qemu-devel@nongnu.org; Sun, 19 Jul 2015 23:05:59 -0400 Received: from loganberry.canonical.com ([91.189.90.37]) by indium.canonical.com with esmtp (Exim 4.76 #1 (Debian)) id 1ZH1Ow-000241-47 for ; Mon, 20 Jul 2015 03:05:58 +0000 Received: from loganberry.canonical.com (localhost [127.0.0.1]) by loganberry.canonical.com (Postfix) with ESMTP id 15F7F2E80BF for ; Mon, 20 Jul 2015 03:05:58 +0000 (UTC) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Date: Mon, 20 Jul 2015 02:59:14 -0000 From: derek Sender: bounces@canonical.com References: <20130430080722.32341.54160.malonedeb@gac.canonical.com> Message-Id: <20150720025914.25422.50843.malone@chaenomeles.canonical.com> Errors-To: bounces@canonical.com Subject: [Qemu-devel] [Bug 1174654] Re: qemu-system-x86_64 takes 100% CPU after host machine resumed from suspend to ram Reply-To: Bug 1174654 <1174654@bugs.launchpad.net> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org I am running Ubuntu Wily (the 20150717 daily build) can reproduce this problem, whatever the guest is Linux or Windows, after host got resumed from suspend, the kvm (qemu-system-x86_64) process becomes a 100% cpu usage, user@ubuntu-mate:~$ kvm --version QEMU emulator version 2.3.0 (Debian 1:2.3+dfsg-5ubuntu2), Copyright (c) 200= 3-2008 Fabrice Bellard I wonder can the kvm program be fixed? -- = You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/1174654 Title: qemu-system-x86_64 takes 100% CPU after host machine resumed from suspend to ram Status in QEMU: Confirmed Status in qemu package in Ubuntu: Invalid Bug description: I have Windows XP SP3 inside qemu VM. All works fine in 12.10. But after upgraiding to 13.04 i have to restart the VM each time i resuming my host machine, because qemu process starts to take CPU cycles and OS inside VM is very slow and sluggish. However it's still controllable and could be shutdown by itself. According to the taskmgr any active process takes 99% CPU. It's not stuck on some single process. To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1174654/+subscriptions