Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263832AbUC3TGr (ORCPT ); Tue, 30 Mar 2004 14:06:47 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263833AbUC3TGr (ORCPT ); Tue, 30 Mar 2004 14:06:47 -0500 Received: from bay-bridge.veritas.com ([143.127.3.10]:55238 "EHLO MTVMIME02.enterprise.veritas.com") by vger.kernel.org with ESMTP id S263832AbUC3TGn (ORCPT ); Tue, 30 Mar 2004 14:06:43 -0500 Date: Tue, 30 Mar 2004 20:06:42 +0100 (BST) From: Hugh Dickins X-X-Sender: hugh@localhost.localdomain To: Andrea Arcangeli cc: Andrew Morton , Subject: Re: mapped pages being truncated [was Re: 2.6.5-rc2-aa5] In-Reply-To: <20040330190102.GD3808@dualathlon.random> Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 841 Lines: 23 On Tue, 30 Mar 2004, Andrea Arcangeli wrote: > On Tue, Mar 30, 2004 at 07:48:42PM +0100, Hugh Dickins wrote: > > > > Do you have enough evidence that it's the very same bug? > > yes, see the two stack traces, they trigger in the same place and it's > the very same workload. Andrew just noticed that xfs indeed calls > truncate_inode_pages before vmtruncate. It will trigger with your > patches too. Yes, Andrew has got it (and I agree XFS is wrong to be doing that). > Ok I see what you mean, this should fix it, agreed? Yes, that's exactly the fix (for when COWing a reserved page). Hugh - 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/