From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932445AbWEMPcf (ORCPT ); Sat, 13 May 2006 11:32:35 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751331AbWEMPce (ORCPT ); Sat, 13 May 2006 11:32:34 -0400 Received: from cassarossa.samfundet.no ([129.241.93.19]:44508 "EHLO cassarossa.samfundet.no") by vger.kernel.org with ESMTP id S1751329AbWEMPce (ORCPT ); Sat, 13 May 2006 11:32:34 -0400 Date: Sat, 13 May 2006 17:32:31 +0200 From: "Steinar H. Gunderson" To: Andrew Morton Cc: linux-kernel@vger.kernel.org, dm-devel@redhat.com Subject: Re: [PATCH] Remove softlockup from invalidate_mapping_pages. (might be dm related) Message-ID: <20060513153231.GA6277@uio.no> References: <1060420062955.7727@suse.de> <20060420003839.1a41c36f.akpm@osdl.org> <20060426204809.GA15462@uio.no> <20060426135809.10a37ec3.akpm@osdl.org> <20060513134908.GA4480@uio.no> <20060513073344.4fcbc46b.akpm@osdl.org> <20060513144334.GA6013@uio.no> <20060513075147.423d18bd.akpm@osdl.org> <20060513150003.GA6096@uio.no> <20060513082409.4d173ccc.akpm@osdl.org> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20060513082409.4d173ccc.akpm@osdl.org> X-Operating-System: Linux 2.6.16.11 on a x86_64 X-Message-Flag: Outlook? --> http://www.mozilla.org/products/thunderbird/ User-Agent: Mutt/1.5.11+cvs20060403 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Sat, May 13, 2006 at 08:24:09AM -0700, Andrew Morton wrote: > (for dm-devel: 2.6.15.4 runs OK on this machine with the same config) (yes?) I can't really assert that; it doesn't _seem_ to be bothered the same way, but I've only run it for an hour or so to compile the other kernels. Just to be 100% sure it's not overheating or such, I've turned off all fan control in the BIOS. But then again, overheating sounds really far off; the machine is in a cooled server room (20 degrees Celsius), and has lots of fans making sure the air flow is good. > Which patch? remove-softlockup-from-invalidate_mapping_pages.patch? No, > that won't have caused this. But then, it's not really obvious what this > crash is. OK. > Which kind of implies that we passed a null (or very small small) `struct > kmem_cache' pointer into kmem_cache_free(). But that doesn't seem like the > sort of thing which will take hours to reproduce. > > Do you have CONFIG_NUMA set? Hm, yes, for some reason CONFIG_NUMA, CONFIG_K8_NUMA and CONFIG_x86_64_ACPI_NUMA are all set; I guess they're left from the stock config I use at a base. (For those tuning in; this is a dual-core amd64. That might be relevant somehow.) /* Steinar */ -- Homepage: http://www.sesse.net/