[drm] Got stolen memory base 0x8a800000, size 0x2000000

[Steven Friedrich]

On Friday, 19 February 2021 13:27:49 EST Pete Wright wrote:
> On 2/19/21 2:23 AM, Steven Friedrich wrote:
> > How can I fix or avoid this?
> > 
> > I do see some odd graphic corruption overlayed on my consoles.
> > 
> > What will I lose if I turn DRM off by not using :
> > drm-fbsd12.0-kmod-4.16.g20201016_1 DRM modules for the linuxkpi-based KMS
> > components
> > drm-kmod-g20190710_1           Metaport of DRM modules for the
> > linuxkpi-based KMS components
> > drm_info-2.2.0_1               Small utility to dump info about DRM
> > devices
> > libdrm-2.4.104,1               Userspace interface to kernel Direct
> > Rendering Module services
> > s
> 
> You will not have hardware accelerated graphics is using Xorg if the
> drm-kmod is not present, which may or may be an issue depending on your
> use-case.  It may also effect power management as well, for example on
> my laptop if I don't load the kmod for my Nvidia GPU I get much worse
> battery life.  So that would be something to look out for.
> 
> To help you fix this it would be helpful to provide the following:
> 1. FreeBSD release (uname -a)
> 2. Graphics hardware (Intel i915 vs AMD)
> 3. Additional logging/debugging information.  For example if you can
> provide more context of the error in your logs, and if there are repro
> steps.
> 
> Cheers,
> -pete

Thanks for the reply, Pete.
After I sent that email, I figured out how to make my signature reflect my 
uname output.
I have a i7-8700 with integrated UHD-630 graphics.
I have no idea where t look, beyond dmesg, for ,re info regarding this 
"stolen" memory.  It happens everytime I boot.  No logs in /var/log by drm.

root at FreeBSD(pts/1):/var/log # grep -i stolen *
dmesg.today:[drm] Got stolen memory base 0x8a800000, size 0x2000000
dmesg.yesterday:[drm] Got stolen memory base 0x8a800000, size 0x2000000
dmesg.yesterday:[drm] Got stolen memory base 0x8a800000, size 0x2000000
messages:Feb 19 06:00:17 FreeBSD kernel: [drm] Got stolen memory base 
0x8a800000, size 0x2000000
messages:Feb 19 05:04:41 FreeBSD kernel: [drm] Got stolen memory base 
0x8a800000, size 0x2000000
messages:Feb 19 16:42:41 FreeBSD kernel: [drm] Got stolen memory base 
0x8a800000, size 0x2000000
messages:Feb 19 16:59:01 FreeBSD kernel: [drm] Got stolen memory base 
0x8a800000, size 0x2000000
messages:Feb 19 18:23:36 FreeBSD kernel: [drm] Got stolen memory base 
0x8a800000, size 0x2000000

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FreeBSD FreeBSD 12.2-RELEASE-p3 FreeBSD 12.2-RELEASE-p3 r369283 Special  amd64