linux-kernel - Re: [PATCH v10] x86, apic, kexec, Documentation: Add disable_cpu

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Date:	Fri, 13 Dec 2013 14:08:54 -0700
From:	jerry.hoemann@...com
To:	hpa@...ux.intel.com
Cc:	"H. Peter Anvin" <hpa@...ux.intel.com>,
	"kexec@...ts.infradead.org" <kexec@...ts.infradead.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	HATAYAMA Daisuke <d.hatayama@...fujitsu.com>,
	Borislav Petkov <bp@...en8.de>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Fengguang Wu <fengguang.wu@...el.com>,
	Jingbai Ma <jingbai.ma@...com>, Vivek Goyal <vgoyal@...hat.com>
Subject: Re: [PATCH v10] x86, apic, kexec, Documentation: Add
 disable_cpu_apic kernel parameter

On Tue, Dec 10, 2013 at 09:49:10AM -0500, Vivek Goyal wrote:
> On Wed, Dec 04, 2013 at 05:10:58PM +0900, HATAYAMA Daisuke wrote:
> > This patch set is to allow kdump 2nd kernel to wake up multiple CPUs,
> > a continueing work from:
> > 
> >   [PATCH v3 0/2] x86, apic, kdump: Disable BSP if boot cpu is AP
> >   https://lkml.org/lkml/2013/10/16/300.
> > 
> > At v4, basic design has changed. Now users need to figure out initial
> > APIC ID of BSP in the 1st kernel and configures kernel parameter for
> > the 2nd kernel manually using disable_cpu_apicid kernel parameter,
> > which is newly introduced by this patch set. This design is more
> > flexible than the previous version in that we no longer have to rely
> > on ACPI/MP table to get initial APIC ID of BSP.
> > 
> > Sorry, this patch set have not include in-source documentation
> > requested by Borislav Petkov yet, but I'll post it later separately,
> > which would be better to focus on documentation reviewing.
> 
> Hi hpa,
> 
> Can you please consider this patch for inclusion.
> 
> Thanks
> Vivek


  hpa,

  Yes,  please consider including this patch as it addresses
  some scaling issues we are having with kdump on our new
  systems.

  Thanks

  Jerry


-- 

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Jerry Hoemann            Software Engineer              Hewlett-Packard

3404 E Harmony Rd. MS 57                        phone:  (970) 898-1022
Ft. Collins, CO 80528                           FAX:    (970) 898-XXXX
                                                email:  jerry.hoemann@...com
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