Driver 390.25 freezes system - "mapping multiple BARs"

A Fedora 27 KDE Xorg install sometimes freezes when opening Vivaldi, which is a Chromium-based browser. I’m able to move the mouse, but nothing else, including the usual array of keyboard shortcuts help.

It doesn’t happen every time. If it does not happen, the desktop is rock solid, including high load number crunching for hours on CPU+GPU. It has been running Fedora 25-27 for a year without h/w issues. This change is recent.
On freeze, I’m still able to SSH into the machine. Dmesg says this:

[  125.297179] NVRM: GPU at PCI:0000:09:00: GPU-1dcba5bb-3f9b-139f-03dc-de35c8a438c8
[  125.297181] NVRM: GPU Board Serial Number: 
[  125.297183] NVRM: Xid (PCI:0000:09:00): 31, Ch 00000028, engmask 00000101, intr 10000000

Sometimes, it’s able to ‘recover’ to the login screen, but the session is gone.
If it is able to recover, which takes about 5 minutes, this shows up in dmesg:

[  752.860554] nvidia-modeset: Freed GPU:0 (GPU-1dcba5bb-3f9b-139f-03dc-de35c8a438c8) @ PCI:0000:09:00.0
[  754.228624] resource sanity check: requesting [mem 0x000c0000-0x000fffff], which spans more than PCI Bus 0000:00 [mem 0x000c0000-0x000dffff window]
[  754.228759] caller _nv001170rm+0xe3/0x1d0 [nvidia] mapping multiple BARs
[  754.753860] nvidia-modeset: Allocated GPU:0 (GPU-1dcba5bb-3f9b-139f-03dc-de35c8a438c8) @ PCI:0000:09:00.0

If it’s not able to recover, killing Vivaldi does not help.

GTX 1060, Ryzen 1070X
Kernel 4.14.16-300,
Nvidia driver 390.25
Full dmesg:

Same issues here except on gnome. Most consistent way to reproduce for me is either chrome video or Dota 2. 4.15 kernel on arch have logs but not at a computer at the moment.

file_log.gz (98.3 KB)
log.gz (104 KB)

El-necro bump but I’m getting caller os_map_kernel_space.part.13+0x6d/0x80 [nvidia] mapping multiple BARs constantly if restarting certain applications. System crashes back to greeter (lightdm). I’ve got Vivaldi open like the OP however it does it even without it. Restarting Steam is 100% going to trigger, some times VLC will as well.

It’s been several kernels, drivers and all around updates since the OP and this is still an issue.

XUbuntu 18.04.5
nVidia 440.100
GTX 1060 & GTX 1660