Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751606AbWCYBsX (ORCPT ); Fri, 24 Mar 2006 20:48:23 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751610AbWCYBsX (ORCPT ); Fri, 24 Mar 2006 20:48:23 -0500 Received: from dsl027-180-168.sfo1.dsl.speakeasy.net ([216.27.180.168]:12736 "EHLO sunset.davemloft.net") by vger.kernel.org with ESMTP id S1751603AbWCYBsW (ORCPT ); Fri, 24 Mar 2006 20:48:22 -0500 Date: Fri, 24 Mar 2006 17:47:45 -0800 (PST) Message-Id: <20060324.174745.78769720.davem@davemloft.net> To: kenneth.w.chen@intel.com Cc: mrustad@mac.com, akpm@osdl.org, linux-kernel@vger.kernel.org Subject: Re: 2.6.16 hugetlbfs problem - DEBUG_PAGEALLOC From: "David S. Miller" In-Reply-To: <200603250124.k2P1OKg21526@unix-os.sc.intel.com> References: <200603250124.k2P1OKg21526@unix-os.sc.intel.com> X-Mailer: Mew version 4.2.53 on Emacs 21.4 / Mule 5.0 (SAKAKI) Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 607 Lines: 14 From: "Chen, Kenneth W" Date: Fri, 24 Mar 2006 17:24:41 -0800 > Yeah, it turns out that the debug option is not compatible with hugetlb > page support. That debug option turns off PSE. Once it is turned off in > CR4, cpu will ignore pse bit in the pmd and causing infinite page-not- > present fault :-( Thanks for tracking this down. - 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/