From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262406AbVF2BEp (ORCPT ); Tue, 28 Jun 2005 21:04:45 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262394AbVF2BCo (ORCPT ); Tue, 28 Jun 2005 21:02:44 -0400 Received: from mail.tyan.com ([66.122.195.4]:44560 "EHLO tyanweb.tyan") by vger.kernel.org with ESMTP id S262390AbVF2A5Y (ORCPT ); Tue, 28 Jun 2005 20:57:24 -0400 Message-ID: <3174569B9743D511922F00A0C94314230AF973A5@TYANWEB> From: YhLu To: Andi Kleen Cc: Peter Buckingham , linux-kernel@vger.kernel.org Subject: RE: 2.6.12 with dual way dual core ck804 MB Date: Tue, 28 Jun 2005 18:01:15 -0700 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org andi, some hints for you. when using Opteron 875, the problem was more easily catched. in smp_callin in smpboot.c if change Dprintk("CPU#%d (phys ID: %d) waiting for CALLOUT\n", cpuid, phys_id); to printk("CPU#%d (phys ID: %d) waiting for CALLOUT\n", cpuid, phys_id); will have 50% to pass through. if change Dprintk("CALLIN, before setup_local_APIC().\n"); to printk("CALLIN, before setup_local_APIC().\n"); will pass through every time. YH > -----Original Message----- > From: YhLu > Sent: Friday, June 24, 2005 4:44 PM > To: 'Andi Kleen' > Cc: Peter Buckingham; linux-kernel@vger.kernel.org > Subject: RE: 2.6.12 with dual way dual core ck804 MB > > start from 2.6.12.rc5. > > YH > > > -----Original Message----- > > From: Andi Kleen [mailto:ak@suse.de] > > Sent: Friday, June 24, 2005 4:42 PM > > To: YhLu > > Cc: Andi Kleen; Peter Buckingham; linux-kernel@vger.kernel.org > > Subject: Re: 2.6.12 with dual way dual core ck804 MB > > > > On Fri, Jun 24, 2005 at 04:42:58PM -0700, YhLu wrote: > > > Andi, > > > > > > the timing problem come out from 2.6.12.rc5.... > > > > What do you mean? It's gone or it started there? > > -Andi > >