Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753290AbaAWS4A (ORCPT ); Thu, 23 Jan 2014 13:56:00 -0500 Received: from mga09.intel.com ([134.134.136.24]:17542 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751535AbaAWSz7 (ORCPT ); Thu, 23 Jan 2014 13:55:59 -0500 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.95,707,1384329600"; d="scan'208";a="443630699" Message-ID: <52E165B7.6020506@intel.com> Date: Thu, 23 Jan 2014 10:55:51 -0800 From: Dave Hansen User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.2.0 MIME-Version: 1.0 To: =?UTF-8?B?VG9yYWxmIEbDtnJzdGVy?= , Linux Kernel CC: kernel@gentoo.org, kvm@vger.kernel.org, Gleb Natapov , Paolo Bonzini Subject: Re: 3.13 hangs when I tried to start a KVM at a 32 bit stable Gentoo References: <52DEA270.60803@gmx.de> In-Reply-To: <52DEA270.60803@gmx.de> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 01/21/2014 08:38 AM, Toralf Förster wrote: > Jan 21 17:18:57 n22 kernel: INFO: rcu_sched self-detected stall on CPU { 2} (t=60001 jiffies g=18494 c=18493 q=183951) > Jan 21 17:18:57 n22 kernel: sending NMI to all CPUs: > Jan 21 17:18:57 n22 kernel: NMI backtrace for cpu 2 > Jan 21 17:18:57 n22 kernel: CPU: 2 PID: 6779 Comm: qemu-system-x86 Not tainted 3.13.0 #3 > Jan 21 17:18:57 n22 kernel: Hardware name: LENOVO 4180F65/4180F65, BIOS 83ET75WW (1.45 ) 05/10/2013 > Jan 21 17:18:57 n22 kernel: task: e921c370 ti: e5f36000 task.ti: e5f36000 I'm seeing a very similar hang with an ubuntu guest and a custom kernel. I'm on commit 0dc3fd0249a, and it's 100% reproducible every time I run KVM. Cc-ing a few more folks... -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/