From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750727AbVHHFUF (ORCPT ); Mon, 8 Aug 2005 01:20:05 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750729AbVHHFUF (ORCPT ); Mon, 8 Aug 2005 01:20:05 -0400 Received: from mailout1.vmware.com ([65.113.40.130]:12554 "EHLO mailout1.vmware.com") by vger.kernel.org with ESMTP id S1750727AbVHHFUF (ORCPT ); Mon, 8 Aug 2005 01:20:05 -0400 Message-ID: <42F6EB73.3030104@vmware.com> Date: Sun, 07 Aug 2005 22:19:47 -0700 From: Zachary Amsden User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.2) Gecko/20040803 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Fawad Lateef Cc: linux-kernel@vger.kernel.org, nhorman@redhat.com Subject: Re: Highmemory Problem with RHEL3 .... 2.4.21-5.ELsmp References: <1e62d137050807205047daf9e0@mail.gmail.com> In-Reply-To: <1e62d137050807205047daf9e0@mail.gmail.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 08 Aug 2005 05:19:04.0843 (UTC) FILETIME=[B1D0F5B0:01C59BD8] Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Fawad Lateef wrote: >Hello, > >I m facing a problem in RHEL3 (2.4.21-5.ELsmp) kernel while using >kmap_atomic on the pages reserved at the boot time !!!! > >At the boot time I reserved pages above 2GB for later use by my module >..... And when I was using those reserved pages through kmap_atomic >system hangs; although kmap_atomic successfully returns me the virtual >address but when I use that virtual address like in memcpy the system >hangs ..... > >I m unable to findout why it is happening in RHEL3 kernel !!!! Plz >help me in this regard .... > > IIRC 2.4.21 has some highmem bugs that have since been fixed. But, it sounds like you might be doing something quite unusual. Code would definitely give people a better idea of what might be wrong. You should definitely consider moving to 2.6 to get a better response. Zach