Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751068AbWCOSL0 (ORCPT ); Wed, 15 Mar 2006 13:11:26 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751081AbWCOSL0 (ORCPT ); Wed, 15 Mar 2006 13:11:26 -0500 Received: from fmr20.intel.com ([134.134.136.19]:15269 "EHLO orsfmr005.jf.intel.com") by vger.kernel.org with ESMTP id S1751068AbWCOSLZ (ORCPT ); Wed, 15 Mar 2006 13:11:25 -0500 Date: Wed, 15 Mar 2006 10:09:29 -0800 From: Ashok Raj To: Andrew Morton Cc: Shaohua Li , ntl@pobox.com, ashok.raj@intel.com, olel@ans.pl, venkatesh.pallipadi@intel.com, linux-kernel@vger.kernel.org, suresh.b.siddha@intel.com, rajesh.shah@intel.com, ak@muc.de, zwane@arm.linux.org.uk Subject: Re: More than 8 CPUs detected and CONFIG_X86_PC cannot handle it on 2.6.16-rc6 Message-ID: <20060315100928.A19557@unix-os.sc.intel.com> References: <20060315054416.GF3205@localhost.localdomain> <1142403500.26706.2.camel@sli10-desk.sh.intel.com> <20060314233138.009414b4.akpm@osdl.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5.1i In-Reply-To: <20060314233138.009414b4.akpm@osdl.org>; from akpm@osdl.org on Tue, Mar 14, 2006 at 11:31:38PM -0800 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1367 Lines: 38 On Tue, Mar 14, 2006 at 11:31:38PM -0800, Andrew Morton wrote: > > > see: > > > > > > Subject: i386 cpu hotplug bug - instant reboot when onlining secondary > > > > > > http://lkml.org/lkml/2006/2/19/186 > > Works for me. But I saw a warning. > > Guys, will you please stop being so cryptic? What worked for you? What > warning? wtf is going on? Who owns this problem, whatever it is? Nathan's problem is different, its nothing related to this thread. Appears that a PIII box had trouble to bring a CPU back online after it was just offlined. Iam not able to reproduce it with the systems i have here. I have tried a PIII box itself, and also a x86_64 system booting a i386 kernel and all seems to work ok. Zwane was attempting to trace Nathan's issue with some experimental patches but dont think it went far along yet. > > - gdt = (struct desc_struct *)get_zeroed_page(GFP_KERNEL); > > + gdt = (struct desc_struct *)get_zeroed_page(GFP_ATOMIC); > It might help to post with the actual warning, so we can understand why this fix is necessary. -- Cheers, Ashok Raj - Open Source Technology Center - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/