From mboxrd@z Thu Jan 1 00:00:00 1970 From: Eric Sandeen Subject: Re: 2.6.33-rc6: ext4 triggers warning about high order allocations Date: Wed, 03 Feb 2010 13:22:12 -0600 Message-ID: <4B69CCE4.3000904@redhat.com> References: <20100203060854.GA12489@redhat.com> <4B69AB60.5070609@redhat.com> <20100203175836.GA16907@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: "Theodore Ts'o" , Andreas Dilger , linux-ext4@vger.kernel.org, linux-kernel@vger.kernel.org To: "Michael S. Tsirkin" Return-path: Received: from mx1.redhat.com ([209.132.183.28]:34315 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756024Ab0BCTWQ (ORCPT ); Wed, 3 Feb 2010 14:22:16 -0500 In-Reply-To: <20100203175836.GA16907@redhat.com> Sender: linux-ext4-owner@vger.kernel.org List-ID: Michael S. Tsirkin wrote: > On Wed, Feb 03, 2010 at 10:59:12AM -0600, Eric Sandeen wrote: >> Michael S. Tsirkin wrote: >>> Hi! >>> I got this warning at boot with 2.6.33-rc6: >>> >>> [ 12.374168] ------------[ cut here ]------------ >>> [ 12.375798] WARNING: at mm/page_alloc.c:1813 __alloc_pages_nodemask+0x180/0x666() >>> [ 12.377401] Hardware name: 2241B48 >>> [ 12.378984] Modules linked in: [last unloaded: scsi_wait_scan] >>> [ 12.380593] Pid: 1, comm: init Not tainted 2.6.33-rc6-aa-nopat #50 >>> [ 12.382194] Call Trace: >>> [ 12.383781] [] ? __alloc_pages_nodemask+0x180/0x666 >>> [ 12.385390] [] warn_slowpath_common+0x77/0xa4 >>> [ 12.386996] [] warn_slowpath_null+0xf/0x11 >>> [ 12.388577] [] __alloc_pages_nodemask+0x180/0x666 >>> [ 12.390168] [] ? finish_task_switch+0x4b/0xb1 >>> [ 12.391758] [] __get_free_pages+0x12/0x4f >>> [ 12.393354] [] __kmalloc+0x42/0x116 >>> [ 12.394934] [] match_number+0x35/0x98 >>> [ 12.396493] [] match_int+0xb/0xd >>> [ 12.398045] [] parse_options+0x5fe/0x733 >>> [ 12.399594] [] ? __wait_on_buffer+0x1f/0x21 >>> [ 12.401157] [] ext4_fill_super+0x373/0x2070 >> Are you mounting with any interesting options? >> >> -Eric > > Hmm yes: > > UUID=4670fcf0-09a8-4011-bf25-6e5e97f263c6 / ext4 > relatime,errors=remount-ro,auto_da_alloc,commit=300,journal_ioprio=7 ^^^^ it's the auto_da_alloc option, which optionally takes a =X argument. I think someone changed match_one() and broke it; auto_da_alloc is the default anyway, so you can just drop this for now. -Eric