From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751145Ab0JRB2t (ORCPT ); Sun, 17 Oct 2010 21:28:49 -0400 Received: from fgwmail7.fujitsu.co.jp ([192.51.44.37]:38931 "EHLO fgwmail7.fujitsu.co.jp" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750811Ab0JRB2s (ORCPT ); Sun, 17 Oct 2010 21:28:48 -0400 X-SecurityPolicyCheck-FJ: OK by FujitsuOutboundMailChecker v1.3.1 From: KOSAKI Motohiro To: fweisbec Subject: Re: 2.6.36-rc5-mmotm0928 BUG while trying to ptrace a process Cc: kosaki.motohiro@jp.fujitsu.com, Valdis.Kletnieks@vt.edu, Andrew Morton , Paul Mackerras , Ingo Molnar , Arnaldo Carvalho de Melo , linux-kernel@vger.kernel.org, Peter Zijlstra In-Reply-To: <1286372708.2144.183.camel@laptop> References: <108598.1286357577@localhost> <1286372708.2144.183.camel@laptop> Message-Id: <20101018102609.3ADF.A69D9226@jp.fujitsu.com> MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 8bit X-Mailer: Becky! ver. 2.50.07 [ja] Date: Mon, 18 Oct 2010 10:28:43 +0900 (JST) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > On Wed, 2010-10-06 at 05:32 -0400, Valdis.Kletnieks@vt.edu wrote: > > Dell Latitude E6500, Intel Core2 Duo P8700 CPU. > > > > Have seen this three times now while trying to attach gdb to a hung Firefox > > process. > > > > [20669.480674] BUG: unable to handle kernel NULL pointer dereference at 0000000000000100 > > [20669.480682] IP: [] __reserve_bp_slot+0x56/0x17d > > Known issue I think, Frederic was looking into curing this. > > Frederic, what's the current status of that? mmotm1014 seems still have this issue. Frederic, can you please tell us current status if you are tracking this issue?