Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755203AbZGGLk4 (ORCPT ); Tue, 7 Jul 2009 07:40:56 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754227AbZGGLkt (ORCPT ); Tue, 7 Jul 2009 07:40:49 -0400 Received: from mail-fx0-f218.google.com ([209.85.220.218]:57424 "EHLO mail-fx0-f218.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753865AbZGGLks (ORCPT ); Tue, 7 Jul 2009 07:40:48 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=from:to:subject:date:user-agent:cc:references:in-reply-to :mime-version:content-disposition:message-id:content-type :content-transfer-encoding; b=gFFww7Xv2jNhAi6wg1oUdYfdRn27Swx0hAlaIKwKudtSzPWv7zRFiwWcl2+UKodyum G+5whLSrlm5faMUSgeLxl8Ja34+5OfhUrygPOxKahFR6R8CpjaG9QiUHZ+zOKBczGSoL ID0lwNo0NpF4fWsmsNKdTyNVzG2/eQ3xi1snI= From: Bartlomiej Zolnierkiewicz To: "Rafael J. Wysocki" Subject: Re: [Bug #13318] AGP doesn't work anymore on nforce2 Date: Tue, 7 Jul 2009 13:46:25 +0200 User-Agent: KMail/1.11.4 (Linux/2.6.30-next-20090617-09943-g5d77a4c; KDE/4.2.4; i686; ; ) Cc: Shaohua Li , Linux Kernel Mailing List , Kernel Testers List , Dave Airlie , Jerome Glisse , Karsten Mehrhoff , Michel =?iso-8859-1?q?D=E4nzer?= References: <20090707021254.GA25184@sli10-desk.sh.intel.com> <200907071300.12565.rjw@sisk.pl> In-Reply-To: <200907071300.12565.rjw@sisk.pl> MIME-Version: 1.0 Content-Disposition: inline Message-Id: <200907071346.29408.bzolnier@gmail.com> Content-Type: Text/Plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2086 Lines: 51 On Tuesday 07 July 2009 13:00:11 Rafael J. Wysocki wrote: > On Tuesday 07 July 2009, Shaohua Li wrote: > > On Tue, Jul 07, 2009 at 08:00:36AM +0800, Rafael J. Wysocki wrote: > > > This message has been generated automatically as a part of a report > > > of regressions introduced between 2.6.29 and 2.6.30. > > > > > > The following bug entry is on the current list of known regressions > > > introduced between 2.6.29 and 2.6.30. Please verify if it still should > > > be listed and let me know (either way). > > > > > > > > > Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=13318 > > > Subject : AGP doesn't work anymore on nforce2 > > > Submitter : Karsten Mehrhoff > > > Date : 2009-04-30 8:51 (68 days old) > > > First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=59de2bebabc5027f93df999d59cc65df591c3e6e > > > References : http://marc.info/?l=linux-kernel&m=124108156417560&w=4 > > > Handled-By : Shaohua Li > > Can anybody else help look at this issue? I really have no idea why this could > > happens. > > Quirky hardware? Could be a weird interaction between CONFIG_X86_USE_3DNOW and AGP or "simply" some timing issue. Either way it means a lot of "fun". ;) The latter theory can be verified by adding some {u,m}delay() to agp_generic_alloc_page{s}() and the former one with: --- arch/x86/Kconfig.cpu | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) Index: b/arch/x86/Kconfig.cpu =================================================================== --- a/arch/x86/Kconfig.cpu +++ b/arch/x86/Kconfig.cpu @@ -363,7 +363,7 @@ config X86_USE_PPRO_CHECKSUM config X86_USE_3DNOW def_bool y - depends on (MCYRIXIII || MK7 || MGEODE_LX) && !UML + depends on (MCYRIXIII || MGEODE_LX) && !UML config X86_OOSTORE def_bool y -- 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/