From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:56508) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Y9Gov-000690-7B for qemu-devel@nongnu.org; Thu, 08 Jan 2015 12:24:30 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Y9Gop-0002DV-SJ for qemu-devel@nongnu.org; Thu, 08 Jan 2015 12:24:29 -0500 Received: from mail-wg0-x231.google.com ([2a00:1450:400c:c00::231]:33322) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Y9Gop-0002DR-LQ for qemu-devel@nongnu.org; Thu, 08 Jan 2015 12:24:23 -0500 Received: by mail-wg0-f49.google.com with SMTP id n12so3841443wgh.8 for ; Thu, 08 Jan 2015 09:24:23 -0800 (PST) Sender: Paolo Bonzini Message-ID: <54AEBD43.2060705@redhat.com> Date: Thu, 08 Jan 2015 18:24:19 +0100 From: Paolo Bonzini MIME-Version: 1.0 References: <54AE87C1.2060907@wiesinger.com> In-Reply-To: <54AE87C1.2060907@wiesinger.com> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] Fedora FC21 - Bug: 100% CPU and hangs in gettimeofday(&tp, NULL); forever List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Gerhard Wiesinger , qemu-devel@nongnu.org On 08/01/2015 14:36, Gerhard Wiesinger wrote: > Quitting and reattaching gdb also hangs here, so gettimeofday takes 100% > CPU and never ends! > > Therefore I guess this is a problem either in the Linux kernel or in > QEMU/KVM. What kernel are you running on (and were you running on)? Can you try F20 host and F21 guest or vice versa? Paolo