From mboxrd@z Thu Jan 1 00:00:00 1970 From: Avi Kivity Subject: Re: [PATCH] emulator: inc/dec can have lock prefix Date: Tue, 13 Jul 2010 19:52:49 +0300 Message-ID: <4C3C99E1.1000604@redhat.com> References: <20100713134023.GA1891@redhat.com> <4C3C6FF9.6090301@redhat.com> <20100713135854.GB1891@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: mtosatti@redhat.com, kvm@vger.kernel.org To: Gleb Natapov Return-path: Received: from mx1.redhat.com ([209.132.183.28]:23280 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757113Ab0GMQwu (ORCPT ); Tue, 13 Jul 2010 12:52:50 -0400 Received: from int-mx02.intmail.prod.int.phx2.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) by mx1.redhat.com (8.13.8/8.13.8) with ESMTP id o6DGqoWh009057 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK) for ; Tue, 13 Jul 2010 12:52:50 -0400 Received: from cleopatra.tlv.redhat.com (cleopatra.tlv.redhat.com [10.35.255.11]) by int-mx02.intmail.prod.int.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id o6DGqn5m018024 for ; Tue, 13 Jul 2010 12:52:50 -0400 In-Reply-To: <20100713135854.GB1891@redhat.com> Sender: kvm-owner@vger.kernel.org List-ID: On 07/13/2010 04:58 PM, Gleb Natapov wrote: > >> Did this occur on a real workload? >> >> > Yes, RHEL6 guest on RHEL6 host without ept. > > Ah, I wondered what load would use lock inc/dec on a pagetable or mmio, but that doesn't need to happen, all it takes is 'inc lock' on a recycled pagetable. -- error compiling committee.c: too many arguments to function