From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:42545) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Yt9Dt-00012k-6M for qemu-devel@nongnu.org; Fri, 15 May 2015 02:35:54 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Yt9Dn-0000hj-Lh for qemu-devel@nongnu.org; Fri, 15 May 2015 02:35:53 -0400 Received: from vps01.wiesinger.com ([46.36.37.179]:55866) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Yt9Dn-0000A3-A8 for qemu-devel@nongnu.org; Fri, 15 May 2015 02:35:47 -0400 Received: from wiesinger.com (wiesinger.com [62.178.19.14]) by vps01.wiesinger.com (Postfix) with ESMTPS id 1245D9F399 for ; Fri, 15 May 2015 08:34:44 +0200 (CEST) Received: from [192.168.0.14] (notebook14.intern [192.168.0.14]) (authenticated bits=0) by wiesinger.com (8.14.9/8.14.9) with ESMTP id t4F6YYZw032562 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Fri, 15 May 2015 08:34:34 +0200 Message-ID: <5555937A.40109@wiesinger.com> Date: Fri, 15 May 2015 08:34:34 +0200 From: Gerhard Wiesinger MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Subject: [Qemu-devel] Kernel Panic on Yum update List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Helllo, I'm using latest qemu-kvm-2.3.0-3.fc21.x86_64 from libvirt repository (updated afterwards). Running yum regularly crashes the VM like below. VM is stripped down to minimum memory requirements (256MB) for owncloud. See below. Looks like a problem in virtio-net or a kernel bug with low memory situations. Any ideas? Thank you. Ciao, Gerhard http://www.wiesinger.com/ kernel: swapper/0: page allocation failure: order:0, mode:0x20 kernel: CPU: 0 PID: 0 Comm: swapper/0 Not tainted 3.19.7-200.fc21.x86_64 #1 kernel: Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.8.1-20150414_141626-myhost.mydomain 04/01/2014 kernel: 0000000000000000 c35c12d2c14e1ce8 ffff88000fc03ac8 ffffffff8176f1f7 kernel: 0000000000000000 0000000000000020 ffff88000fc03b58 ffffffff811a1c9e kernel: 0000000000000000 0000000000000040 ffff880000000000 ffff88000ffcdb28 kernel: Call Trace: kernel: [] dump_stack+0x45/0x57 kernel: [] warn_alloc_failed+0xfe/0x170 kernel: [] __alloc_pages_nodemask+0x7ca/0xb10 kernel: [] ? nf_hook_slow+0x84/0x130 kernel: [] __alloc_page_frag+0x12f/0x150 kernel: [] __netdev_alloc_frag+0x2f/0x50 kernel: [] __alloc_rx_skb+0xe6/0x110 kernel: [] __netdev_alloc_skb+0x1f/0x40 kernel: [] page_to_skb+0x65/0x370 [virtio_net] kernel: [] virtnet_receive+0x2c1/0x980 [virtio_net] kernel: [] virtnet_poll+0x21/0x90 [virtio_net] kernel: [] net_rx_action+0x21a/0x350 kernel: [] __do_softirq+0x10b/0x2b0 kernel: [] irq_exit+0x125/0x130 kernel: [] do_IRQ+0x58/0xf0 kernel: [] common_interrupt+0x6d/0x6d kernel: [] ? hrtimer_start+0x18/0x20 kernel: [] ? native_safe_halt+0x6/0x10 kernel: [] ? rcu_eqs_enter+0xa3/0xb0 kernel: [] default_idle+0x1e/0xc0 kernel: [] arch_cpu_idle+0xf/0x20 kernel: [] cpu_startup_entry+0x37a/0x3c0 kernel: [] rest_init+0x77/0x80 kernel: [] start_kernel+0x4a4/0x4c5 kernel: [] ? early_idt_handlers+0x120/0x120 kernel: [] x86_64_start_reservations+0x2a/0x2c kernel: [] x86_64_start_kernel+0x152/0x175 kernel: swapper/0: page allocation failure: order:0, mode:0x20 kernel: CPU: 0 PID: 0 Comm: swapper/0 Not tainted 3.19.7-200.fc21.x86_64 #1 kernel: Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.8.1-20150414_141626-myhost.mydomain 04/01/2014 kernel: 0000000000000000 c35c12d2c14e1ce8 ffff88000fc03ac8 ffffffff8176f1f7 kernel: 0000000000000000 0000000000000020 ffff88000fc03b58 ffffffff811a1c9e kernel: 0000000000000000 0000000000000040 ffff880000000000 ffff88000ffcdb28 kernel: Call Trace: kernel: [] dump_stack+0x45/0x57 kernel: [] warn_alloc_failed+0xfe/0x170 kernel: [] __alloc_pages_nodemask+0x7ca/0xb10 kernel: [] ? nf_hook_slow+0x84/0x130 kernel: [] __alloc_page_frag+0x12f/0x150 kernel: [] __netdev_alloc_frag+0x2f/0x50 kernel: [] __alloc_rx_skb+0xe6/0x110 kernel: [] __netdev_alloc_skb+0x1f/0x40 kernel: [] page_to_skb+0x65/0x370 [virtio_net] kernel: [] virtnet_receive+0x2c1/0x980 [virtio_net] kernel: [] virtnet_poll+0x21/0x90 [virtio_net] kernel: [] net_rx_action+0x21a/0x350 kernel: [] __do_softirq+0x10b/0x2b0 kernel: [] irq_exit+0x125/0x130 kernel: [] do_IRQ+0x58/0xf0 kernel: [] common_interrupt+0x6d/0x6d kernel: [] ? hrtimer_start+0x18/0x20 kernel: [] ? native_safe_halt+0x6/0x10 kernel: [] ? rcu_eqs_enter+0xa3/0xb0 kernel: [] default_idle+0x1e/0xc0 kernel: [] arch_cpu_idle+0xf/0x20 kernel: [] cpu_startup_entry+0x37a/0x3c0 kernel: [] rest_init+0x77/0x80 kernel: [] start_kernel+0x4a4/0x4c5 kernel: [] ? early_idt_handlers+0x120/0x120 kernel: [] x86_64_start_reservations+0x2a/0x2c kernel: [] x86_64_start_kernel+0x152/0x175 kernel: swapper/0: page allocation failure: order:0, mode:0x20 kernel: CPU: 0 PID: 0 Comm: swapper/0 Not tainted 3.19.7-200.fc21.x86_64 #1 kernel: Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.8.1-20150414_141626-myhost.mydomain 04/01/2014 kernel: 0000000000000000 c35c12d2c14e1ce8 ffff88000fc03ac8 ffffffff8176f1f7 kernel: 0000000000000000 0000000000000020 ffff88000fc03b58 ffffffff811a1c9e kernel: 0000000000000000 0000000000000040 ffff880000000000 ffff88000ffcdb28 kernel: Call Trace: kernel: [] dump_stack+0x45/0x57 kernel: [] warn_alloc_failed+0xfe/0x170 kernel: [] __alloc_pages_nodemask+0x7ca/0xb10 kernel: [] ? nf_hook_slow+0x84/0x130 kernel: [] __alloc_page_frag+0x12f/0x150 kernel: [] __netdev_alloc_frag+0x2f/0x50 kernel: [] __alloc_rx_skb+0xe6/0x110 kernel: [] __netdev_alloc_skb+0x1f/0x40 kernel: [] page_to_skb+0x65/0x370 [virtio_net] kernel: [] virtnet_receive+0x2c1/0x980 [virtio_net] kernel: [] virtnet_poll+0x21/0x90 [virtio_net] kernel: [] net_rx_action+0x21a/0x350 kernel: [] __do_softirq+0x10b/0x2b0 kernel: [] irq_exit+0x125/0x130 kernel: [] do_IRQ+0x58/0xf0 kernel: [] common_interrupt+0x6d/0x6d kernel: [] ? hrtimer_start+0x18/0x20 kernel: [] ? native_safe_halt+0x6/0x10 kernel: [] ? rcu_eqs_enter+0xa3/0xb0 kernel: [] default_idle+0x1e/0xc0 kernel: [] arch_cpu_idle+0xf/0x20 kernel: [] cpu_startup_entry+0x37a/0x3c0 kernel: [] rest_init+0x77/0x80 kernel: [] start_kernel+0x4a4/0x4c5 kernel: [] ? early_idt_handlers+0x120/0x120 kernel: [] x86_64_start_reservations+0x2a/0x2c kernel: [] x86_64_start_kernel+0x152/0x175