From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Wed, 16 Apr 2008 20:45:43 +0200 From: Ingo Molnar Subject: Re: [PATCH] - Increase MAX_APICS for large configs Message-ID: <20080416184543.GD3722@elte.hu> References: <20080416163936.GA23099@sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20080416163936.GA23099@sgi.com> Sender: owner-linux-mm@kvack.org Return-Path: To: Jack Steiner Cc: tglx@linutronix.de, linux-mm@kvack.org, linux-kernel@vger.kernel.org List-ID: * Jack Steiner wrote: > Increase the maximum number of apics when running very large > configurations. This patch has no affect on most systems. > > Signed-off-by: Jack Steiner > > I think this area of the code will be substantially changed when the > full x2apic patch is available. In the meantime, this seems like an > acceptible alternative. The patch has no effect on any 32-bit kernel. > It adds ~4k to the size of 64-bit kernels but only if NR_CPUS > 255. ugly ... but well - applied. What's the static size cost of 64K APICs? Ingo -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org