lkml.org 
[lkml]   [2014]   [Jan]   [9]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: kdump failed because of hotplug memory adding in kdump kernel
From
Date
On Thu, 2014-01-09 at 13:23 -0500, Vivek Goyal wrote:
> On Thu, Jan 09, 2014 at 10:24:25AM -0700, Toshi Kani wrote:
>
> [..]
> > > I think creating a new command line option is simpler as compared to
> > > creating a new flag in bootparam which in turn disables memory hotplug.
> > > More users can use that option. For example, if for some reason hotplug
> > > code is crashing, one can just disable it on command line as work around
> > > and move on.
> >
> > I do not have a strong opinion about having such option. However, I
> > think it is more user friendly to keep the exactmap option works alone
> > on any platforms.
>
> I think we should create internally a variable which will disable memory
> hotplug. And set that variable based on memmap=exactmap, mem=X and also
> provide a way to disable memory hotplug directly using command line
> option.
>
> Current kexec-tools can use memmap=exactmap and be happy. I am writing
> a new kexec syscall and will not be using memmap=exactmap and would need
> to use that command line option to disable memory hotplug behavior.

Sounds good to me.

Thanks,
-Toshi



\
 
 \ /
  Last update: 2014-01-09 20:01    [W:0.114 / U:0.232 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site