Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760832AbZCSU1w (ORCPT ); Thu, 19 Mar 2009 16:27:52 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754712AbZCSU1m (ORCPT ); Thu, 19 Mar 2009 16:27:42 -0400 Received: from smtp1.linux-foundation.org ([140.211.169.13]:57109 "EHLO smtp1.linux-foundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752274AbZCSU1l (ORCPT ); Thu, 19 Mar 2009 16:27:41 -0400 Date: Thu, 19 Mar 2009 13:21:28 -0700 (PDT) From: Linus Torvalds X-X-Sender: torvalds@localhost.localdomain To: Nick Piggin cc: Ying Han , Jan Kara , Andrew Morton , linux-kernel , linux-mm , guichaz@gmail.com, Alex Khesin , Mike Waychison , Rohit Seth , Peter Zijlstra Subject: Re: ftruncate-mmap: pages are lost after writing to mmaped file. In-Reply-To: Message-ID: References: <604427e00903181244w360c5519k9179d5c3e5cd6ab3@mail.gmail.com> <200903200248.22623.nickpiggin@yahoo.com.au> <200903200334.55710.nickpiggin@yahoo.com.au> 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 Content-Length: 878 Lines: 26 On Thu, 19 Mar 2009, Linus Torvalds wrote: > > Ahh, so you re-created it? On ext2 only, or is it visible on ext3 as well? > I've not even tested - I assumed that I would have to boot into less > memory and downgrade my filesystem to ext2, which made me hope somebody > else would pick it up first ;) Oh, btw, can people who see this (Ying Han, Nick and apparently Jan) detail their configurations, please? In particular - SMP? (CONFIG_SMP and how many cores do you have if so?) - PREEMPT (NONE/VOLUNTARY or full preempt?) - RCU (CLASSIC/TREE/PREEMPT?) since those affect the kinds of races we can see a lot. Linus -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/