* What is limiting my CMA?
@ 2022-05-25 10:34 Eric Pilmore
0 siblings, 0 replies; only message in thread
From: Eric Pilmore @ 2022-05-25 10:34 UTC (permalink / raw)
To: linux-kernel
I'm running on CentOS7 on a 5.3 based kernel. I have CMA configured
into the kernel and attempting to manipulate the amount of memory
reserved via the "cma" boot parameter. I have one system with 32GB of
memory of which I'm able to reserve 16GB for CMA. However, on another
system that has over 512GB of memory, I can only reserve up to 8GB for
CMA.
My question is, why am I not able to reserve a larger CMA region on my
512GB memory system as compared to my other system where I could
effectively reserve half of the DRAM space?
Thanks in advance for any advice or pointers to where I might be able
to find an explanation.
Eric Pilmore
^ permalink raw reply [flat|nested] only message in thread
only message in thread, other threads:[~2022-05-25 10:34 UTC | newest]
Thread overview: (only message) (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2022-05-25 10:34 What is limiting my CMA? Eric Pilmore
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.