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Warning message: [i915kms] Failed to add WC MTRR for [0xe0000000-0xefffffff]: -22; performance may suffer  #249

@AvirahJ

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@AvirahJ

Hi,
On a fresh install of FreeBSD 12.1 on a Desktop with Intel i3-2120 processor & DH67CL (Intel) motherboard, this warning messages are shown.
%freebsd-version 12.1-RELEASE-p10

This the boot time message shown:
[drm] Unable to create a private tmpfs mount, hugepage support will be disabled(-19). Failed to add WC MTRR for [0xe0000000-0xefffffff]: -22; performance may suffer

This is the dmesg output : https://pastebin.com/uDpj7wvf

It uses drm-fbsd12.0-kmod-4.16.g20200221, drm-kmod-g20190710, libdrm-2.4.102,1 .

Is this warning messages a problem? If you need, I can post the full pciconf output:
vgapci0@pci0:0:2:0: class=0x030000 card=0x20038086 chip=0x01028086 rev=0x09 hdr=0x00 vendor = 'Intel Corporation' device = '2nd Generation Core Processor Family Integrated Graphics Controller' class = display subclass = VGA

kldstat -v:
https://pastebin.com/Gt649QXD

/var/log/Xorg.0.log:
https://pastebin.com/HD1aZc57

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