From mboxrd@z Thu Jan 1 00:00:00 1970 From: Marcelo Tosatti Subject: Re: EPT: Misconfiguration Date: Fri, 21 Jan 2011 11:22:47 -0200 Message-ID: <20110121132247.GA3097@amt.cnet> References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: kvm To: Ruben Kerkhof Return-path: Received: from mx1.redhat.com ([209.132.183.28]:58011 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751088Ab1AUNth (ORCPT ); Fri, 21 Jan 2011 08:49:37 -0500 Content-Disposition: inline In-Reply-To: Sender: kvm-owner@vger.kernel.org List-ID: On Thu, Jan 20, 2011 at 12:48:00PM +0100, Ruben Kerkhof wrote: > I'm suddenly getting lots of the following errors on a server running > 2.36.7, but I have no idea what it means: > > 2011-01-20T12:41:18.358603+01:00 phy005 kernel: EPT: Misconfiguration. > 2011-01-20T12:41:18.358621+01:00 phy005 kernel: EPT: GPA: 0x3dbff6b0 > 2011-01-20T12:41:18.358624+01:00 phy005 kernel: > ept_misconfig_inspect_spte: spte 0x50743e007 level 4 > 2011-01-20T12:41:18.358627+01:00 phy005 kernel: > ept_misconfig_inspect_spte: spte 0x523de2007 level 3 > 2011-01-20T12:41:18.358629+01:00 phy005 kernel: > ept_misconfig_inspect_spte: spte 0x62336f007 level 2 > 2011-01-20T12:41:18.360109+01:00 phy005 kernel: > ept_misconfig_inspect_spte: spte 0x1603a0730500d277 level 1 > 2011-01-20T12:41:18.360137+01:00 phy005 kernel: > ept_misconfig_inspect_spte: rsvd_bits = 0x3a00000000000 > 2011-01-20T12:41:18.360151+01:00 phy005 kernel: ------------[ cut here > ]------------ A shadow pagetable entry in memory has bits 45-49 set, which is not allowed. Its probably bad memory if this errors were not present before with the same workload and host software. Would be useful to see what memtest86 says.