Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752862AbZI1Qli (ORCPT ); Mon, 28 Sep 2009 12:41:38 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752520AbZI1Qli (ORCPT ); Mon, 28 Sep 2009 12:41:38 -0400 Received: from mail-ew0-f211.google.com ([209.85.219.211]:63125 "EHLO mail-ew0-f211.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751959AbZI1Qlh (ORCPT ); Mon, 28 Sep 2009 12:41:37 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=date:from:to:cc:subject:message-id:references:mime-version :content-type:content-disposition:in-reply-to:user-agent; b=oohRpfCrk4K9wr+gnHJZF6XnvxBCIlPgBzeFO+vNDJ4FEltVb0NiDeWSyoavladQDp ny9zqbHd/zi45UmSvVtPCGoW0EcnOMEW2kJXf2aGMYG2O/Cks7wTcbBEgrd9RXmj+Nb9 7KRgQ7/+Zgl3HSjInD+p9TTq3XZGMtiZVXY6Q= Date: Mon, 28 Sep 2009 20:41:37 +0400 From: Cyrill Gorcunov To: Pavel Machek Cc: Michael Tokarev , Kernel Mailing List Subject: Re: 2.6.31: booting on a PIII Celeron? Message-ID: <20090928164137.GG5264@lenovo> References: <4AC0D59F.8000502@msgid.tls.msk.ru> <4AC0D651.7030009@msgid.tls.msk.ru> <20090928163617.GA25503@atrey.karlin.mff.cuni.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20090928163617.GA25503@atrey.karlin.mff.cuni.cz> User-Agent: Mutt/1.5.18 (2008-05-17) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1818 Lines: 59 [Pavel Machek - Mon, Sep 28, 2009 at 06:36:17PM +0200] | > Michael Tokarev wrote: | > >Hello. | > >I've a problem here with 2.6.31. kernel is | > >compiled for PIII: | > > | > > CONFIG_MPENTIUMIII=y | > > CONFIG_X86_GENERIC=y | > > | > >This kernel works on real PIII machine - like this: | > > | > >vendor_id : GenuineIntel | > >cpu family : 6 | > >model : 8 | > >model name : Pentium III (Coppermine) | > >stepping : 10 | > >cpu MHz : 997.580 | > > | > >But it fails on a Celeron: | > > | > >vendor_id : GenuineIntel | > >cpu family : 6 | > >model : 8 | > >model name : Celeron (Coppermine) | > >stepping : 6 | > >cpu MHz : 797.481 | > > | > | > There's one more difference between the two: | > | > PIII, working: | > flags: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pse36 | > mmx fxsr sse up | > Celeron, !working: | > flags: fpu vme de pse tsc msr pae mce cx8 sep mtrr pge mca cmov pse36 mmx | > fxsr sse up | > | > So the celeron machine lacks "apic" flag. And in my | > kernel config, apic is enabled: | > CONFIG_X86_LOCAL_APIC=y | > CONFIG_X86_IO_APIC=y | > (but not on the command line like apic=force) | try 'noapic nolapic' to see if it helps? | yeah good point Pavel, at moment the code checks for cpu family/stepping but if the "nolapic" option will help -- definitely sonething screwed :( Michael, please give it a try. | -- | (english) http://www.livejournal.com/~pavelmachek | (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html | -- Cyrill -- 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/