From mboxrd@z Thu Jan 1 00:00:00 1970 From: Len Brown Subject: Re: [PATCH] Improve acpi debug documentation Date: Wed, 25 Apr 2007 01:21:16 -0400 Message-ID: <200704250121.16661.lenb@kernel.org> References: <1177394002.9072.98.camel@localhost.localdomain> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Return-path: Received: from hera.kernel.org ([140.211.167.34]:45762 "EHLO hera.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751581AbXDYFWj (ORCPT ); Wed, 25 Apr 2007 01:22:39 -0400 In-Reply-To: <1177394002.9072.98.camel@localhost.localdomain> Content-Disposition: inline Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: Zhang Rui Cc: linux-acpi@vger.kernel.org, ak@suse.de, randy.dunlap@oracle.com Applied. thanks, -Len On Tuesday 24 April 2007 01:53, Zhang Rui wrote: > Now we use acpi.debug_level and acpi.debug_layer as kernel boot > parameters instead of acpi_dbg_level and acpi_dbg_layer. > But the document is not updated in time. > Thanks to Andi Kleen for pointing it out. > > This is the patch to update documentation for ACPI debug option. > > Signed-off-by: Zhang Rui > --- > Documentation/kernel-parameters.txt | 30 ++++++++++++++++++++++++++---- > 1 files changed, 26 insertions(+), 4 deletions(-) > > Index: linux-2.6.21-rc7/Documentation/kernel-parameters.txt > =================================================================== > --- linux-2.6.21-rc7.orig/Documentation/kernel-parameters.txt 2007-04-18 15:22:49.000000000 +0800 > +++ linux-2.6.21-rc7/Documentation/kernel-parameters.txt 2007-04-24 13:42:54.000000000 +0800 > @@ -181,19 +181,41 @@ and is between 256 and 4096 characters. > that require a timer override, but don't have > HPET > > - acpi_dbg_layer= [HW,ACPI] > + acpi.debug_layer= [HW,ACPI] > Format: > Each bit of the indicates an ACPI debug layer, > 1: enable, 0: disable. It is useful for boot time > debugging. After system has booted up, it can be set > - via /proc/acpi/debug_layer. > + via /sys/module/acpi/parameters/debug_layer. > + CONFIG_ACPI_DEBUG must be enabled for this to produce any output. > + Available bits (add the numbers together) to enable debug output > + for specific parts of the ACPI subsystem: > + 0x01 utilities 0x02 hardware 0x04 events 0x08 tables > + 0x10 namespace 0x20 parser 0x40 dispatcher > + 0x80 executer 0x100 resources 0x200 acpica debugger > + 0x400 os services 0x800 acpica disassembler. > + The number can be in decimal or prefixed with 0x in hex. > + Warning: Many of these options can produce a lot of > + output and make your system unusable. Be very careful. > > - acpi_dbg_level= [HW,ACPI] > + acpi.debug_level= [HW,ACPI] > Format: > Each bit of the indicates an ACPI debug level, > 1: enable, 0: disable. It is useful for boot time > debugging. After system has booted up, it can be set > - via /proc/acpi/debug_level. > + via /sys/module/acpi/parameters/debug_level. > + CONFIG_ACPI_DEBUG must be enabled for this to produce any output. > + Available bits (add the numbers together) to enable different > + debug output levels of the ACPI subsystem: > + 0x01 error 0x02 warn 0x04 init 0x08 debug object > + 0x10 info 0x20 init names 0x40 parse 0x80 load > + 0x100 dispatch 0x200 execute 0x400 names 0x800 operation region > + 0x1000 bfield 0x2000 tables 0x4000 values 0x8000 objects > + 0x10000 resources 0x20000 user requests 0x40000 package. > + The number can be in decimal or prefixed with 0x in hex. > + Warning: Many of these options can produce a lot of > + output and make your system unusable. Be very careful. > + > > acpi_fake_ecdt [HW,ACPI] Workaround failure due to BIOS lacking ECDT > >