From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760125AbZEFOLi (ORCPT ); Wed, 6 May 2009 10:11:38 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1758719AbZEFOL2 (ORCPT ); Wed, 6 May 2009 10:11:28 -0400 Received: from mx2.redhat.com ([66.187.237.31]:37160 "EHLO mx2.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756002AbZEFOL0 (ORCPT ); Wed, 6 May 2009 10:11:26 -0400 Organization: Red Hat UK Ltd. Registered Address: Red Hat UK Ltd, Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SI4 1TE, United Kingdom. Registered in England and Wales under Company Registration No. 3798903 From: David Howells In-Reply-To: <4A00EF23.4050302@snapgear.com> References: <4A00EF23.4050302@snapgear.com> <49FF96A7.5040401@snapgear.com> <3662.1241530861@redhat.com> To: Greg Ungerer Cc: dhowells@redhat.com, linux-kernel@vger.kernel.org Subject: Re: BUG: failure at mm/nommu.c:518/add_nommu_region() Date: Wed, 06 May 2009 15:11:19 +0100 Message-ID: <30031.1241619079@redhat.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Can you try the attached patch, please? David --- From: David Howells Subject: [PATCH] NOMMU: Don't check vm_region::vm_start is page aligned in add_nommu_region() Don't check vm_region::vm_start is page aligned in add_nommu_region() because the region may reflect some non-page-aligned mapped file, such as could be obtained from RomFS XIP. Signed-off-by: David Howells --- mm/nommu.c | 2 -- 1 files changed, 0 insertions(+), 2 deletions(-) diff --git a/mm/nommu.c b/mm/nommu.c index cdc6f60..325706b 100644 --- a/mm/nommu.c +++ b/mm/nommu.c @@ -515,8 +515,6 @@ static void add_nommu_region(struct vm_region *region) validate_nommu_regions(); - BUG_ON(region->vm_start & ~PAGE_MASK); - parent = NULL; p = &nommu_region_tree.rb_node; while (*p) {