From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754690AbZEZPWB (ORCPT ); Tue, 26 May 2009 11:22:01 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754317AbZEZPVy (ORCPT ); Tue, 26 May 2009 11:21:54 -0400 Received: from rcsinet11.oracle.com ([148.87.113.123]:23789 "EHLO rgminet11.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751707AbZEZPVx (ORCPT ); Tue, 26 May 2009 11:21:53 -0400 Message-ID: <4A1C0982.1090300@oracle.com> Date: Tue, 26 May 2009 08:23:46 -0700 From: Randy Dunlap Organization: Oracle Linux Engineering User-Agent: Thunderbird 2.0.0.6 (X11/20070801) MIME-Version: 1.0 To: Pekka Enberg CC: mingo@elte.hu, eduard.munteanu@linux360.ro, linux-kernel@vger.kernel.org Subject: Re: [PATCH] kmemtrace: fix kernel parameter documentation References: In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Source-IP: abhmt001.oracle.com [141.146.116.10] X-Auth-Type: Internal IP X-CT-RefId: str=0001.0A010209.4A1C08DD.01EB:SCFSTAT5015188,ss=1,fgs=0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Pekka Enberg wrote: > From: Pekka Enberg > > The kmemtrace.enable kernel parameter no longer works. To enable > kmemtrace at > boot-time, you must pass "ftrace=kmemtrace" instead. Can someone also list the possible tracers in the ftrace= area, please? ftrace=[tracer] [ftrace] will set and start the specified tracer as early as possible in order to facilitate early boot debugging. Thanks. > Cc: Eduard - Gabriel Munteanu > Signed-off-by: Pekka Enberg > --- > Documentation/kernel-parameters.txt | 10 ---------- > 1 files changed, 0 insertions(+), 10 deletions(-) > > diff --git a/Documentation/kernel-parameters.txt > b/Documentation/kernel-parameters.txt > index e87bdbf..9243dd8 100644 > --- a/Documentation/kernel-parameters.txt > +++ b/Documentation/kernel-parameters.txt > @@ -56,7 +56,6 @@ parameter is applicable: > ISAPNP ISA PnP code is enabled. > ISDN Appropriate ISDN support is enabled. > JOY Appropriate joystick support is enabled. > - KMEMTRACE kmemtrace is enabled. > LIBATA Libata driver is enabled > LP Printer support is enabled. > LOOP Loopback device support is enabled. > @@ -1054,15 +1053,6 @@ and is between 256 and 4096 characters. It is > defined in the file > use the HighMem zone if it exists, and the Normal > zone if it does not. > > - kmemtrace.enable= [KNL,KMEMTRACE] Format: { yes | no } > - Controls whether kmemtrace is enabled > - at boot-time. > - > - kmemtrace.subbufs=n [KNL,KMEMTRACE] Overrides the number of > - subbufs kmemtrace's relay channel has. Set this > - higher than default (KMEMTRACE_N_SUBBUFS in code) if > - you experience buffer overruns. > - > kgdboc= [HW] kgdb over consoles. > Requires a tty driver that supports console polling. > (only serial suported for now) -- ~Randy LPC 2009, Sept. 23-25, Portland, Oregon http://linuxplumbersconf.org/2009/