Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1761660AbYA1Wic (ORCPT ); Mon, 28 Jan 2008 17:38:32 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753396AbYA1WiZ (ORCPT ); Mon, 28 Jan 2008 17:38:25 -0500 Received: from rgminet01.oracle.com ([148.87.113.118]:33642 "EHLO rgminet01.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752409AbYA1WiY (ORCPT ); Mon, 28 Jan 2008 17:38:24 -0500 Date: Mon, 28 Jan 2008 14:37:48 -0800 From: Randy Dunlap To: Adrian Bunk Cc: linux-kernel@vger.kernel.org Subject: Re: [2.6 patch] let LOG_BUF_SHIFT default to 17 Message-Id: <20080128143748.530a33d1.randy.dunlap@oracle.com> In-Reply-To: <20080128221223.GE8767@does.not.exist> References: <20080128221223.GE8767@does.not.exist> Organization: Oracle Linux Eng. X-Mailer: Sylpheed 2.4.7 (GTK+ 2.8.10; x86_64-unknown-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Brightmail-Tracker: AAAAAQAAAAI= X-Brightmail-Tracker: AAAAAQAAAAI= X-Whitelist: TRUE X-Whitelist: TRUE Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1839 Lines: 63 On Tue, 29 Jan 2008 00:12:23 +0200 Adrian Bunk wrote: > 16 kB is often no longer enough for a normal boot of an UP system. s/16/64/ then agreed. Acked-by: Randy Dunlap > And even less when people e.g. use suspend. > > 17 seems to be a more reasonable default for current kernels on current > hardware (it's just the default, anyone who is memory limited can > still lower it). > > Signed-off-by: Adrian Bunk > > --- > f02213e3c1cb90ec1c66227f037110d489f30bfd > diff --git a/init/Kconfig b/init/Kconfig > index 0eda68f..81a1255 100644 > --- a/init/Kconfig > +++ b/init/Kconfig > @@ -272,17 +272,14 @@ config IKCONFIG_PROC > config LOG_BUF_SHIFT > int "Kernel log buffer size (16 => 64KB, 17 => 128KB)" > range 12 21 > - default 17 if S390 || LOCKDEP > - default 16 if X86_NUMAQ || IA64 > - default 15 if SMP > - default 14 > + default 17 > help > Select kernel log buffer size as a power of 2. > - Defaults and Examples: > - 17 => 128 KB for S/390 > - 16 => 64 KB for x86 NUMAQ or IA-64 > - 15 => 32 KB for SMP > - 14 => 16 KB for uniprocessor > + Examples: > + 17 => 128 KB > + 16 => 64 KB > + 15 => 32 KB > + 14 => 16 KB > 13 => 8 KB > 12 => 4 KB > > > -- > 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/ > --- ~Randy -- 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/