Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756888AbYFBR6l (ORCPT ); Mon, 2 Jun 2008 13:58:41 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754059AbYFBR6U (ORCPT ); Mon, 2 Jun 2008 13:58:20 -0400 Received: from mga11.intel.com ([192.55.52.93]:56433 "EHLO mga11.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753424AbYFBR6S convert rfc822-to-8bit (ORCPT ); Mon, 2 Jun 2008 13:58:18 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.27,578,1204531200"; d="scan'208";a="335048019" X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7BIT Subject: RE: [patch 01/41] cpu_alloc: Increase percpu area size to 128k Date: Mon, 2 Jun 2008 10:58:17 -0700 Message-ID: <1FE6DD409037234FAB833C420AA843EC0177822B@orsmsx424.amr.corp.intel.com> In-Reply-To: <20080530040010.806208523@sgi.com> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [patch 01/41] cpu_alloc: Increase percpu area size to 128k Thread-Index: AcjCCaxS8MOkmh28T3SXEj23jssv7gC0CzJA References: <20080530035620.587204923@sgi.com> <20080530040010.806208523@sgi.com> From: "Luck, Tony" To: "Christoph Lameter" , Cc: , , "David Miller" , "Eric Dumazet" , "Peter Zijlstra" , "Rusty Russell" , "Mike Travis" X-OriginalArrivalTime: 02 Jun 2008 17:58:17.0969 (UTC) FILETIME=[3CA91E10:01C8C4DA] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 717 Lines: 17 > The per cpu allocator requires more per cpu space and we are already near > the limit on IA64. Increase the maximum size of the IA64 per cpu area from > 64K to 128K. > -#define PERCPU_PAGE_SHIFT 16 /* log2() of max. size of per-CPU area */ > +#define PERCPU_PAGE_SHIFT 17 /* log2() of max. size of per-CPU area */ Don't you need some more changes to the alt_dtlb_miss handler in ivt.S for this to work? 128K is not a supported pagesize on any processor model. -Tony -- 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/