From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751385AbXCLSgo (ORCPT ); Mon, 12 Mar 2007 14:36:44 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751408AbXCLSgo (ORCPT ); Mon, 12 Mar 2007 14:36:44 -0400 Received: from mail05.syd.optusnet.com.au ([211.29.132.186]:54508 "EHLO mail05.syd.optusnet.com.au" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751385AbXCLSgn (ORCPT ); Mon, 12 Mar 2007 14:36:43 -0400 From: Con Kolivas To: "Ryan Hope" Subject: BUG: atomic counter underflow at: page_add_file_rmap+0x41/0x50 Date: Tue, 13 Mar 2007 05:36:37 +1100 User-Agent: KMail/1.9.5 Cc: linux-kernel@vger.kernel.org References: <48f7fe350703120901y6c19c67v267ac2acd518a754@mail.gmail.com> <48f7fe350703121003p5fac23a1m32c3027d35a78cc2@mail.gmail.com> In-Reply-To: <48f7fe350703121003p5fac23a1m32c3027d35a78cc2@mail.gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200703130536.37992.kernel@kolivas.org> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Tuesday 13 March 2007 04:03, Ryan Hope wrote: > I applied the detect-atomic-underflow patch and now I get these BUGs: > > BUG: atomic counter underflow at: > [<78167931>] page_add_file_rmap+0x41/0x50 > [<78161c7d>] __handle_mm_fault+0x53d/0x900 > [<78106de0>] do_IRQ+0x40/0x80 > [<7811ff99>] do_page_fault+0x129/0x630 > [<7811fe70>] do_page_fault+0x0/0x630 > [<784907f4>] error_code+0x7c/0x84 > ======================= > BUG: atomic counter underflow at: > [<78167931>] page_add_file_rmap+0x41/0x50 > [<78161c7d>] __handle_mm_fault+0x53d/0x900 > [<78106de0>] do_IRQ+0x40/0x80 > [<7811ff99>] do_page_fault+0x129/0x630 > [<7811fe70>] do_page_fault+0x0/0x630 > [<784907f4>] error_code+0x7c/0x84 > [<78490000>] rt_mutex_slowunlock+0x160/0x1c0 > ======================= > BUG: atomic counter underflow at: > [<78167931>] page_add_file_rmap+0x41/0x50 > [<78161c7d>] __handle_mm_fault+0x53d/0x900 > [<78106de0>] do_IRQ+0x40/0x80 > [<7811ff99>] do_page_fault+0x129/0x630 > [<7811fe70>] do_page_fault+0x0/0x630 > [<784907f4>] error_code+0x7c/0x84 > [<78490000>] rt_mutex_slowunlock+0x160/0x1c0 > ======================= > BUG: atomic counter underflow at: > [<78167931>] page_add_file_rmap+0x41/0x50 > [<78161c7d>] __handle_mm_fault+0x53d/0x900 > [<78106de0>] do_IRQ+0x40/0x80 > [<7811ff99>] do_page_fault+0x129/0x630 > [<7811fe70>] do_page_fault+0x0/0x630 > [<784907f4>] error_code+0x7c/0x84 > [<78490000>] rt_mutex_slowunlock+0x160/0x1c0 > ======================= > BUG: atomic counter underflow at: > [<78167931>] page_add_file_rmap+0x41/0x50 > [<78161c7d>] __handle_mm_fault+0x53d/0x900 > [<78106de0>] do_IRQ+0x40/0x80 > [<7811ff99>] do_page_fault+0x129/0x630 > [<7811fe70>] do_page_fault+0x0/0x630 > [<784907f4>] error_code+0x7c/0x84 > [<78490000>] rt_mutex_slowunlock+0x160/0x1c0 > ======================= > BUG: atomic counter underflow at: > [<78167931>] page_add_file_rmap+0x41/0x50 > [<78161c7d>] __handle_mm_fault+0x53d/0x900 > [<78106de0>] do_IRQ+0x40/0x80 > [<7811ff99>] do_page_fault+0x129/0x630 > [<7811fe70>] do_page_fault+0x0/0x630 > [<784907f4>] error_code+0x7c/0x84 > [<78490000>] rt_mutex_slowunlock+0x160/0x1c0 > ======================= > BUG: atomic counter underflow at: > [<78167931>] page_add_file_rmap+0x41/0x50 > [<78161c7d>] __handle_mm_fault+0x53d/0x900 > [<78106de0>] do_IRQ+0x40/0x80 > [<7811ff99>] do_page_fault+0x129/0x630 > [<7811fe70>] do_page_fault+0x0/0x630 > [<784907f4>] error_code+0x7c/0x84 > [<78490000>] rt_mutex_slowunlock+0x160/0x1c0 > ======================= > > On 3/12/07, Ryan Hope wrote: > > I am currently running RSDL v0.30 on 2.6.21-rc2-mm2. I get these (what > > seem to me as random) bug messages from dmesg; they are non fatal. I'm > > not quite sure if this bug is a result of changes I have made on top of > > RSDL; is this because of bad code I introduced or is the code that I > > introduced exposing a bug in RSDL? The BUGs from dmesg are shown below. > > If you need more info let me know. > > Not an RSDL bug, thanks. -- -ck