Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756776Ab3EWBFL (ORCPT ); Wed, 22 May 2013 21:05:11 -0400 Received: from mx1.redhat.com ([209.132.183.28]:17679 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756084Ab3EWBFJ (ORCPT ); Wed, 22 May 2013 21:05:09 -0400 Date: Wed, 22 May 2013 20:19:58 -0400 From: Dave Jones To: "H. Peter Anvin" Cc: Linux Kernel , x86@kernel.org, fenghua.yu@intel.com Subject: Re: microcode loading got really slow. Message-ID: <20130523001957.GA32651@redhat.com> Mail-Followup-To: Dave Jones , "H. Peter Anvin" , Linux Kernel , x86@kernel.org, fenghua.yu@intel.com References: <20130521230332.GC12713@redhat.com> <519D1668.6000601@zytor.com> <20130522200012.GA15456@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1399 Lines: 39 On Wed, May 22, 2013 at 01:09:52PM -0700, H. Peter Anvin wrote: > Dave Jones wrote: > > >On Wed, May 22, 2013 at 12:03:04PM -0700, H. Peter Anvin wrote: > > > On 05/21/2013 04:03 PM, Dave Jones wrote: > > > > In 3.10-rc2 I see this happening.. > > > > > > > > [ 72.318133] microcode: CPU1 sig=0x306c3, pf=0x2, revision=0x6 > > > > [ 132.446449] microcode: CPU2 sig=0x306c3, pf=0x2, revision=0x6 > > > > [ 192.573101] microcode: CPU3 sig=0x306c3, pf=0x2, revision=0x6 > >> > [ 252.702055] microcode: Microcode Update Driver: v2.00 > >, Peter Oruba > > > > > >> > For some reason the events for udev seem to be getting delayed 60s > >for each core. > > > > > > > > Dave > > > > > > > > > > Is this a regression from -rc1? > > > >No. Looks like it was introduced between 3.9 and 3.10-rc1 > > > >I see bisecting in my future. > > > A bisect would be appreciated. Cc Fenghua. Turns out that I can reproduce this on 3.9 too (and likely earlier) with the right config file. I'm not sure what option causes the delay yet. Isolating differences between configs now. Dave -- 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/