Re: [PATCH 1/2] x86/resctrl, Documentation: Keep mbm_assign_mode "default" on boot

From: Reinette Chatre

Date: Tue Sep 01 2026 - 15:43:17 EST


Hi Babu,

On 8/31/26 3:59 PM, Babu Moger wrote:
> Hi Maintainers,
>
> It's been a while since we last discussed this thread, and this item
> has been outstanding for some time. I'd like to revisit the
> conversation and understand the plan moving forward.
>
> Please advice. More below.

>From my side I provide a very high level summary of my view below as we await
guidance per [1]:

If this is the right thing to do then there should be no reason for the motivation
to omit the consequences, known limitations, and non-covered scenarios. These
should be highlighted upfront and weighed to justify why this direction makes
sense.

Beyond that, framing pqos as a first-class userspace solution in this motivation
is misleading, as pqos currently cannot fully accommodate the mode requested to
be made default by this patch.


Reinette

[1] https://lore.kernel.org/lkml/20260728170423.GAamjhF3W74TW4q9DG@fat_crate.local/