From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754863AbbJOCpX (ORCPT ); Wed, 14 Oct 2015 22:45:23 -0400 Received: from phil.doycomm.com ([66.219.128.249]:60207 "EHLO phil.doycomm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754633AbbJOCpU (ORCPT ); Wed, 14 Oct 2015 22:45:20 -0400 Subject: RE: Re[2]: 3.4-rc smpboot: do_boot_cpu failed(-1) to wakeup CPU#1 From: Donald Parsons To: "Brown, Len" Cc: shrybman , "linux-kernel@vger.kernel.org" In-Reply-To: <1A7043D5F58CCB44A599DFD55ED4C9484693770E@fmsmsx115.amr.corp.intel.com> References: <505f039bc185286b1295600807741499@teksavvy.com> <1444850729.6312.7.camel@falcon.homelinux.org> <410706506d73adeefedf5b6b21dcc6af@teksavvy.com> <1A7043D5F58CCB44A599DFD55ED4C9484693770E@fmsmsx115.amr.corp.intel.com> Content-Type: text/plain; charset="us-ascii" Date: Wed, 14 Oct 2015 22:45:09 -0400 Message-ID: <1444877109.5998.4.camel@falcon.homelinux.org> Mime-Version: 1.0 X-Mailer: Evolution 2.32.3 (2.32.3-1.fc14) Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 2015-10-15 at 02:09 +0000, Brown, Len wrote: > Donald, Shane, > Thanks for reporting this. > > > > I also tried suggested /vmlinuz-4.3.0-rc3 parameter in grub: > > > "cpu_init_udelay=10000" > > > which did not help getting missing CPU back online. > > right, if the issue is caused by the patch below, > that cmdline will not help. > > > Did you try reverting the "x86/smpboot: Remove APIC.wait_for_init_deassert > > and atomic init_deasserted" patch? > > Yes, please let me know if reverting that patch helps you too. How? Please send a patch or git cmd(s). I have the git/stable/linux-stable.git on my PC. Thanks. > You have similar hardware: > > Shane: > > smpboot: CPU0: Intel(R) Core(TM)2 CPU 6400 @ 2.13GHz (fam: 06, model: 0f, stepping: 06) > > Donald: > > CPU : Intel Core 2 CPU 6600 @ 2.4GHz Mine is also same (fam: 06, model: 0f, stepping: 06). > I think I can get ahold of a core2 6xxx box tomorrow. > Please send me your .config directly, and I'll see if I can reproduce the issue. Will do. Don