From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263806AbUE1TG5 (ORCPT ); Fri, 28 May 2004 15:06:57 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263817AbUE1TG4 (ORCPT ); Fri, 28 May 2004 15:06:56 -0400 Received: from gateway-1237.mvista.com ([12.44.186.158]:62457 "EHLO av.mvista.com") by vger.kernel.org with ESMTP id S263806AbUE1TGo (ORCPT ); Fri, 28 May 2004 15:06:44 -0400 Message-ID: <40B78DB6.1070003@mvista.com> Date: Fri, 28 May 2004 12:06:30 -0700 From: Todd Poynor User-Agent: Mozilla Thunderbird 0.6 (X11/20040502) X-Accept-Language: en-us, en MIME-Version: 1.0 To: "Bill C. Riemers" CC: tytso@mit.edu, busybox@mail.codepoet.org, linux-kernel@vger.kernel.org Subject: Re: [BusyBox] Re: [PATCH] BLKFLSBUF on ramdisks References: <20040527231932.GD7176@slurryseal.ddns.mvista.com> <003001c444b5$ff72cee0$64fda287@docbill002> In-Reply-To: <003001c444b5$ff72cee0$64fda287@docbill002> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Bill C. Riemers wrote: > Does this problem also effect the 2.4 kernels? > > I'm just wondering, because it sounds like a possible explination for > strange errors occurring with /dev/cobd? in coLinux, especially when used as > swap devices. Basically /dev/cobd? are simmular to ramdisks, but they > refere to files mmap'ed under Windows. They work fairly reliable, until > someone does something like "swapoff -a;swapon -a". However, coLinux is > only used with 2.4 kernels, so if the problem does not effect 2.4 kernels, > then this is not the cause. Yes, Matt Porter previously determined that this behavior changed sometime after 2.4.2 and on or before 2.4.17, when rd.c was modified to perform a truncate_inode_pages() for BLKFLSBUF (could track down the date/revision more accurately if you're interested). -- Todd