From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757363AbZBLBgi (ORCPT ); Wed, 11 Feb 2009 20:36:38 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756191AbZBLBg3 (ORCPT ); Wed, 11 Feb 2009 20:36:29 -0500 Received: from smtp1.linux-foundation.org ([140.211.169.13]:55407 "EHLO smtp1.linux-foundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756206AbZBLBg3 (ORCPT ); Wed, 11 Feb 2009 20:36:29 -0500 Date: Wed, 11 Feb 2009 17:35:52 -0800 (PST) From: Linus Torvalds X-X-Sender: torvalds@localhost.localdomain To: Lin Ming cc: linux-kernel , "Zhang, Yanmin" , Mel Gorman Subject: Re: specjbb2005 fails with 2.6.29-rc4 In-Reply-To: <1234401390.7699.29.camel@minggr.sh.intel.com> Message-ID: References: <1234401390.7699.29.camel@minggr.sh.intel.com> User-Agent: Alpine 2.00 (LFD 1167 2008-08-23) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 12 Feb 2009, Lin Ming wrote: > > Test with Jrockit VM fails. And it works well if OpenJDK is used > instead. I suspect maybe it uses hugetlbs? There were a couple of commits to fix VM_ACCOUNT for hugepage areas recently. See - 5a6fe125950676015f5108fb71b2a67441755003: "Do not account for the address space used by hugetlbfs using VM_ACCOUNT" - 17c9d12e126cb0de8d535dc1908c4819d712bc68: "Do not account for hugetlbfs quota at mmap() time if mapping [SHM|MAP]_NORESERVE" because hugetlb mappings have their own magical VM accounting. So can you check if current -git fixes it? Linus