Re: [PATCH 0/2] x86, apic: Disable BSP if boot cpu is AP

2013-10-14 Thread Petr Tesarik
On Wed, 9 Oct 2013 16:20:12 -0400 Vivek Goyal wrote: > On Fri, Aug 30, 2013 at 08:43:56AM -0700, H. Peter Anvin wrote: > > On 08/29/2013 04:51 PM, HATAYAMA Daisuke wrote: > > > > > > This is not a regression just as Eric explains. > > > > > > There is also my explanation in the description of t

Re: [PATCH 0/2] x86, apic: Disable BSP if boot cpu is AP

2013-10-09 Thread Vivek Goyal
On Fri, Aug 30, 2013 at 08:43:56AM -0700, H. Peter Anvin wrote: > On 08/29/2013 04:51 PM, HATAYAMA Daisuke wrote: > > > > This is not a regression just as Eric explains. > > > > There is also my explanation in the description of the 2nd patch. I > > should have described so here explicitly. > >

Re: [PATCH 0/2] x86, apic: Disable BSP if boot cpu is AP

2013-08-30 Thread H. Peter Anvin
On 08/29/2013 04:51 PM, HATAYAMA Daisuke wrote: > > This is not a regression just as Eric explains. > > There is also my explanation in the description of the 2nd patch. I > should have described so here explicitly. > OK. We're probably days away from a merge window, so I would like to put thi

Re: [PATCH 0/2] x86, apic: Disable BSP if boot cpu is AP

2013-08-30 Thread Vivek Goyal
On Thu, Aug 29, 2013 at 04:37:44PM -0700, Eric W. Biederman wrote: [..] > This situation is people who run machines of unreasonable size really > would like to use multiple cpus when generating crash dumps. Yes. Now kdump is in a phase where people are doing scalability work. And one of the probl

Re: [PATCH 0/2] x86, apic: Disable BSP if boot cpu is AP

2013-08-29 Thread HATAYAMA Daisuke
(2013/08/29 22:54), H. Peter Anvin wrote: On 08/29/2013 02:27 AM, HATAYAMA Daisuke wrote: This is the patch series to address the issue that kdump 2nd kernel now fails to wake up multiple CPUs. Please explain the "now" in the above sentence. Is this a regression? If so, what is its impact? I

Re: [PATCH 0/2] x86, apic: Disable BSP if boot cpu is AP

2013-08-29 Thread Eric W. Biederman
"H. Peter Anvin" writes: > On 08/29/2013 02:27 AM, HATAYAMA Daisuke wrote: >> This is the patch series to address the issue that kdump 2nd kernel >> now fails to wake up multiple CPUs. > > Please explain the "now" in the above sentence. Is this a regression? > If so, what is its fimpact? This i

Re: [PATCH 0/2] x86, apic: Disable BSP if boot cpu is AP

2013-08-29 Thread H. Peter Anvin
On 08/29/2013 02:27 AM, HATAYAMA Daisuke wrote: > This is the patch series to address the issue that kdump 2nd kernel > now fails to wake up multiple CPUs. Please explain the "now" in the above sentence. Is this a regression? If so, what is its impact? Is this something that needs to go into 3.1