From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751250AbWFBHTH (ORCPT ); Fri, 2 Jun 2006 03:19:07 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751254AbWFBHTH (ORCPT ); Fri, 2 Jun 2006 03:19:07 -0400 Received: from smtp.osdl.org ([65.172.181.4]:53379 "EHLO smtp.osdl.org") by vger.kernel.org with ESMTP id S1751250AbWFBHTF (ORCPT ); Fri, 2 Jun 2006 03:19:05 -0400 Date: Fri, 2 Jun 2006 00:22:52 -0700 From: Andrew Morton To: Ingo Molnar Cc: jbeulich@novell.com, jeff@garzik.org, htejun@gmail.com, reuben-lkml@reub.net, linux-kernel@vger.kernel.org Subject: Re: 2.6.17-rc5-mm2 Message-Id: <20060602002252.aaa5e4e3.akpm@osdl.org> In-Reply-To: <20060602070948.GB9721@elte.hu> References: <20060601014806.e86b3cc0.akpm@osdl.org> <447EB4AD.4060101@reub.net> <20060601025632.6683041e.akpm@osdl.org> <447EBD46.7010607@reub.net> <20060601103315.GA1865@elte.hu> <20060601105300.GA2985@elte.hu> <447EF7A8.76E4.0078.0@novell.com> <447FFCAC.76E4.0078.0@novell.com> <20060602070948.GB9721@elte.hu> X-Mailer: Sylpheed version 2.2.4 (GTK+ 2.8.17; i686-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 On Fri, 2 Jun 2006 09:09:48 +0200 Ingo Molnar wrote: > In all other cases (if we go outside of the stack page(s)) we _must_ > fall back to the dump 'scan the stack pages for interesting entries' > method, to get the information out! "Uh oh the unwind info somehow got > corrupted, sorry" is not enough to debug a kernel bug. Also, it might be worth doing a two-pass thing. Pass 1 doesn't print anything - it just figures out whether pass2 will succeed. If not, fall back without printing anything.