From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Jan Beulich" Subject: Re: [PATCH] x86/PAE partially linear page table support Date: Thu, 15 Feb 2007 11:41:20 +0000 Message-ID: <45D454F0.76E4.0078.0@novell.com> References: <45D438F3.76E4.0078.0@novell.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: Content-Disposition: inline List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: Keir Fraser Cc: xen-devel@lists.xensource.com List-Id: xen-devel@lists.xenproject.org >>> Keir Fraser 15.02.07 11:25 >>> > >How do you ensure that circular references are correctly cleaned up at >domain destruction time? (i.e., A references B and B references A). > >We have special destructore code to clean up all root pagetable references, >but the code isn't there for lower levels. put_page_from_l?e() are all symmetrical, i.e. should take care of such references at any level. I don't think I know what other destructor code is involved here. Jan