From mboxrd@z Thu Jan 1 00:00:00 1970 From: Len Brown Subject: Re: 2.6.19-rc <-> ThinkPads Date: Tue, 31 Oct 2006 22:15:43 -0500 Message-ID: <200610312215.44454.len.brown@intel.com> References: <20061029231358.GI27968@stusta.de> <20061030135625.GB1601@mellanox.co.il> <20061101030126.GE27968@stusta.de> Reply-To: Len Brown Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Return-path: In-Reply-To: <20061101030126.GE27968@stusta.de> Content-Disposition: inline List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: linux-pm-bounces@lists.osdl.org Errors-To: linux-pm-bounces@lists.osdl.org To: Adrian Bunk Cc: Andrew Morton , linux-acpi@vger.kernel.org, linux-pm@osdl.org, "Michael S. Tsirkin" , Hugh Dickins , Linus Torvalds , Martin Lorenz , Linux Kernel Mailing List List-Id: linux-pm@vger.kernel.org The BIOS disables the LAPIC for a reason. A couple of years ago Linux made the mistake of enabling the LAPIC that the BIOS disabled, and all hell broke loose. We fixed that bug about a year ago, but left "lapic" to force it on for those where forcing it to be enabled actually works (eg. some folks want the NMI profiling on their IOAPIC-less laptop) But if you force the lapic to be enabled, you are running the system in a mode not supported by the manufacturer and you are on your own. I don't see an indication that this is a bug. If it used to work and it is important to you, then run the old software where it used to work -- because chances are good that it worked by accident. -Len On Tuesday 31 October 2006 22:01, Adrian Bunk wrote: > FYI: > = > Subject : Thinkpad R50p: boot fail with (lapic && on_battery) > References : http://lkml.org/lkml/2006/10/31/333 > Submitter : Ernst Herzberg > Status : submitter was asked to bisect > = > It seems to be completely unrelated (except that it's also a ThinkPad), = > but it might be worth a try whether a (non-SMP) kernel without APIC = > support fixes the issues after resume. > = > Hugh, your laptop seems to be a non-SMP laptop. > Do you have APIC enabled, and if yes does disabling help? > = > cu > Adrian > = > = > VERSION =3D 2 > PATCHLEVEL =3D 6 > SUBLEVEL =3D 19 > EXTRAVERSION =3D -rc4 > NAME=3DThinkPad Killer > = > - > 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/ > =