Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261474AbUC2Upy (ORCPT ); Mon, 29 Mar 2004 15:45:54 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262134AbUC2Upy (ORCPT ); Mon, 29 Mar 2004 15:45:54 -0500 Received: from fw.osdl.org ([65.172.181.6]:23939 "EHLO mail.osdl.org") by vger.kernel.org with ESMTP id S261474AbUC2Upx (ORCPT ); Mon, 29 Mar 2004 15:45:53 -0500 Date: Mon, 29 Mar 2004 12:48:03 -0800 From: Andrew Morton To: Andrea Arcangeli Cc: linux-kernel@vger.kernel.org, hugh@veritas.com Subject: Re: 2.6.5-rc2-aa5 Message-Id: <20040329124803.072bb7c6.akpm@osdl.org> In-Reply-To: <20040329150646.GA3808@dualathlon.random> References: <20040329150646.GA3808@dualathlon.random> X-Mailer: Sylpheed version 0.9.7 (GTK+ 1.2.10; i586-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 783 Lines: 17 Andrea Arcangeli wrote: > > Notably there is a BUG_ON(page->mapping) triggering in > page_remove_rmap in the pagecache case. that could be ex-pagecache being > removed from pagecache before all ptes have been zapped, infact the > page_remove_rmap triggers in the vmtruncate path. Confused. vmtruncate zaps the ptes before removing pages from pagecache, so I'd expect a non-null ->mapping in page_remove_rmap() is a very common thing. truncate a file which someone has mmapped and it'll happen every time, will it not? - 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/