On Tue, Nov 20, 2012 at 05:43:16PM +0400, Roman Kagan wrote:
As I found out recently, memory hotplug is disabled in f17 and f18
kernels (but not in f16).
Can anybody please recall the reason for that?
The commit doing that is not particularly enlightening:
Author: Dave Jones <davej(a)redhat.com>
Date: Fri Jan 13 17:33:51 2012 -0500
Disable memory hotplug on x86-64
I'd like to propose to re-enable it but I'm trying to figure out why
it was disabled in the first place.
That is a pretty terrible changelog. And I don't recall my
reasoning tbh. It was around the time of F17 development where we
disabled a lot of stuff, so it may have just been overly optimistic
that it was unused.
Unless someone else has a good reason not to, we can reenable it.
(How well it works however is unknown to me)