From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261295AbVAHUBg (ORCPT ); Sat, 8 Jan 2005 15:01:36 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261378AbVAHUBf (ORCPT ); Sat, 8 Jan 2005 15:01:35 -0500 Received: from mx1.redhat.com ([66.187.233.31]:56541 "EHLO mx1.redhat.com") by vger.kernel.org with ESMTP id S261295AbVAHUBc (ORCPT ); Sat, 8 Jan 2005 15:01:32 -0500 Date: Sat, 8 Jan 2005 15:00:47 -0500 From: Dave Jones To: Chris Wright Cc: clameter@sgi.com, linux-kernel@vger.kernel.org Subject: Re: panic on bootup due to __GFP_ZERO patch Message-ID: <20050108200047.GC10190@redhat.com> Mail-Followup-To: Dave Jones , Chris Wright , clameter@sgi.com, linux-kernel@vger.kernel.org References: <20050108010629.M469@build.pdx.osdl.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20050108010629.M469@build.pdx.osdl.net> User-Agent: Mutt/1.4.1i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Sat, Jan 08, 2005 at 01:06:30AM -0800, Chris Wright wrote: > I'm getting a panic during pidmap_init with a backtrace that looks > something like: > > buffered_rmqueue > __alloc_pages > get_zeroed_page > pidmap_init > start_kernel > > Reverting the __GFP_ZERO patch fixes the issue, haven't drilled down > any deeper yet to see what in the patch is causing the problem. This is > x86 w/out HIGHMEM (and no NUMA). ACK, there has been a number of folks hit by this since I updated the Fedora rawhide kernel to snapshots including this change. https://bugzilla.redhat.com/beta/show_bug.cgi?id=144480 I've also hit in on my test box that has 256MB. The pattern so far does seem to be 'no highmem', though I've not actually tried a recent snapshot on my highmem box. Dave