From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Rafael J. Wysocki" Subject: Re: [PATCH] ACPI: don't attempt to use hest_tab unless !acpi_pci_disabled Date: Sun, 16 Jan 2011 20:28:33 +0100 Message-ID: <201101162028.33572.rjw@sisk.pl> References: <20110114181620.188e7a62@queued.net> <201101152148.43791.rjw@sisk.pl> <20110115192422.706af049@queued.net> Mime-Version: 1.0 Content-Type: Text/Plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Return-path: Received: from ogre.sisk.pl ([217.79.144.158]:39809 "EHLO ogre.sisk.pl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753772Ab1APT3a (ORCPT ); Sun, 16 Jan 2011 14:29:30 -0500 In-Reply-To: <20110115192422.706af049@queued.net> Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: Andres Salomon Cc: Len Brown , linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org, Huang Ying , Jesse Barnes On Sunday, January 16, 2011, Andres Salomon wrote: > On Sat, 15 Jan 2011 21:48:43 +0100 > "Rafael J. Wysocki" wrote: > > > On Saturday, January 15, 2011, Andres Salomon wrote: > > > On Sat, 15 Jan 2011 21:38:10 +0100 > > > "Rafael J. Wysocki" wrote: > > > > > > > On Saturday, January 15, 2011, Andres Salomon wrote: > > > > > On Sat, 15 Jan 2011 14:01:18 +0100 > > > > > "Rafael J. Wysocki" wrote: > > > > > > > > > > > On Saturday, January 15, 2011, Andres Salomon wrote: > > > > > > > On Fri, 14 Jan 2011 23:24:27 -0500 (EST) > > > > > > > Len Brown wrote: > > > > > > > > > > > > > > [...] > > > > > > > > > This patch causes apei_hest_parse to check both > > > > > > > > > hest_disabled and acpi_pci_disabled before continuing. > > > > > > > > > With it, the XO-1 boots properly. > > > > > > > > > > > > > > > > The X0-1 has no ACPI support, and thus you are running > > > > > > > > with acpi_disabled=1, yes? > > > > > > > > > > > > > > The XO-1 has no ACPI support, but ACPI support is enabled > > > > > > > in the kernel (as the XO-1.5 does have ACPI support, and > > > > > > > the same kernel is used between both) and I'm not passing > > > > > > > any arguments to the kernel regarding it. The kernel's ACPI > > > > > > > code detects that it's not there and disables it (the > > > > > > > kernel message that's seen is "ACPI: Interpreter disabled.") > > > > > > > > > > > > > > This is what sets apci_pci_disabled to 1; I'm not doing it > > > > > > > manually. > > > > > > > > > > > > Hmm. Does the appended patch help instead? > > > > > > > > > > Nope. acpi_hest_init returns immediately if acpi_disabled, and > > > > > thus never sets hest_disable. You either need to set > > > > > hest_disable, or ensure apei_hest_parse checks more than just > > > > > hest_disable. > > > > > > > > OK, so the new one below should help, right? > > > > > > Yes, that looks better > > > > OK > > > > > (though you probably just want to use 'goto err;' instead). > > > > Indeed. > > > > > I can test it later today. > > > > Cool, thanks. Please try the version below with the 'goto'. > > > > Rafael > > > Yep, just tested it out; it works fine. Great, thanks! Rafael