From mboxrd@z Thu Jan 1 00:00:00 1970 From: Avi Kivity Subject: Re: BUG at mmu.c:615 from localhost migration using ept+hugetlbfs Date: Wed, 10 Jun 2009 11:08:14 +0300 Message-ID: <4A2F69EE.9080503@redhat.com> References: <20090529164326.GB11681@us.ibm.com> <20090609164036.GA10828@amt.cnet> <4A2E920E.8010703@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: Ryan Harper , kvm@vger.kernel.org To: Marcelo Tosatti Return-path: Received: from mx2.redhat.com ([66.187.237.31]:36015 "EHLO mx2.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752502AbZFJIIR (ORCPT ); Wed, 10 Jun 2009 04:08:17 -0400 In-Reply-To: <4A2E920E.8010703@redhat.com> Sender: kvm-owner@vger.kernel.org List-ID: Avi Kivity wrote: > > Not really. One thing, migration should transition the shadow > pagetables from large pages to small ones, maybe that bit is broken. > > Maybe we're looking at a largepage spte and interpreting it as a > normal L2 spte, and interpreting a guest page as the L1 spt. I tried to find where we drop the mmu (or at least large sptes for the slot) when we enable dirty logging, and failed. Maybe remove_write_access() is sufficient. -- error compiling committee.c: too many arguments to function