Re: [RFC] Disable auto_movable_ratio for selfhosted memmap
From: Michal Hocko
Date: Mon Jul 28 2025 - 09:07:15 EST
On Mon 28-07-25 11:37:46, Hannes Reinecke wrote:
> On 7/28/25 11:10, David Hildenbrand wrote:
> And to make matters worse, we have two competing user-space programs:
> - udev
> - daxctl
> neither of which is (or can be made) aware of each other.
> This leads to races and/or inconsistencies.
Would it help if generic udev memory hotplug rule exclude anything that
is dax backed? Is there a way to check for that? Sorry if this is a
stupid question.
To me it sounds like daxctl should be the one to online the memory
excluseively and udev should just care about regular memory.
--
Michal Hocko
SUSE Labs