Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756962Ab3HRUzp (ORCPT ); Sun, 18 Aug 2013 16:55:45 -0400 Received: from mail.linuxfoundation.org ([140.211.169.12]:43921 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756348Ab3HRUz2 (ORCPT ); Sun, 18 Aug 2013 16:55:28 -0400 Date: Sun, 18 Aug 2013 13:57:13 -0700 From: Greg KH To: Joakim Tjernlund Cc: linux-kernel@vger.kernel.org Subject: Re: High load which eventually leads to lockup Message-ID: <20130818205713.GA32563@kroah.com> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2066 Lines: 30 On Sun, Aug 18, 2013 at 04:32:23PM +0200, Joakim Tjernlund wrote: > The last week I have had 4 lockups which required power on/off. > Before getting there I noticed that the machine was getting slow. > > top reported high load(5-10) but there was no process consuming CPU except > for migration/0 which were spicing 100% on and off. > Ping times went up with a factor of 40 too. > > Eventually I got a few entries in the kernel log: > Aug 16 12:40:51 gentoo-jocke kernel: Modules linked in: nfnetlink_log nfnetlink bluetooth rfkill sg isofs ipt_MASQUERADE iptable_nat nf_nat_ipv4 nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack ipt_REJECT xt_CHECKSUM iptable_mangle xt_tcpudp ip6table_filter ip6_tables iptable_filter ip_tables ebtables x_tables autofs4 nfsd dm_crypt vboxnetadp(O) vboxnetflt(O) vboxdrv(O) usbhid dm_mod kvm_intel kvm snd_hda_codec_hdmi aesni_intel ablk_helper cryptd xts lrw gf128mul snd_hda_codec_realtek ehci_pci ehci_hcd usbcore snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_page_alloc snd_timer snd microcode usb_common radeon e1000e ttm firmware_class ptp pps_core pcspkr > Aug 16 12:40:51 gentoo-jocke kernel: CPU 0 > Aug 16 12:40:51 gentoo-jocke kernel: Pid: 2421, comm: X Tainted: G O 3.9.11 #1 Hewlett-Packard HP Compaq 8200 Elite CMT PC/1494 The virtual box drivers are a huge mess. Seriously, I really don't even know how the things are able to work at all (virtual table pointers from userspace through to the kernel?) I spent a bunch of time to try to clean them up and get them into mergable state, but without the ability to also fix up the userspace side, that ended up being a dead-end. Can you duplicate the problem without these modules loaded? I'd blame them for any problems you might ever have, given how crazy they are. thanks, greg k-h -- 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/