I've started getting kernel aborts:
----------------------------------------------------------%<---------------------------------------------------------
reason:         WARNING: CPU: 6 PID: 1030 at drivers/gpu/drm/nouveau/nouveau_bo.c:1216
nouveau_bo_move_ntfy+0xb8/0xc0 [nouveau]
cmdline:        BOOT_IMAGE=/vmlinuz-3.10.0-862.6.3.el7.x86_64 root=/dev/mapper/sl-root ro rd.lvm.lv=sl/root
rd.lvm.lv=sl/swap rhgb quiet LANG=en_US.UTF-8
package:        kernel
component:      kernel
---------------------------------------------------------%<---------------------------------------------------------
To be honest, I thought I'd replaced the nouveau drivers with the nvidia ones when I installed 7.5.
However, since I haven't made any changes recently, I'm not sure where to look.

The most recent update prior to any aborts,  google-chrome-beta     x86_64     69.0.3497.57-1, was at Fri, 24 Aug 2018 06:19:42
The first abort was three hours later (probably when I started using the computer):  Date: Sat, 25 Aug 2018 09:15:18

It seems to resolve itself within a couple of minutes but  it's annoying.
I'm open to suggestions.