Public bug reported:

After an ADT/DKMS modification (see
https://bugs.launchpad.net/ubuntu/+source/dkms/+bug/1915051) binary DKMS
packages without -dkms in the name started to get tested on ADT run.
This exposed a problem in the Nvidia proprietary DKMS modules for linux-
kvm build:

if we don't have CONFIG_X86_PAT set, the Nvidia drivers (all versions) set 
NV_ENABLE_BUILTIN_PAT_SUPPORT to 1 and attempt to build the file 
nvidia/nv-pat.c - two functions there make use of __flush_tlb() exported symbol.
But, after kernel v5.8, this symbol is not exported anymore [0][1], not even 
flush_tlb_local() is available.

For the time being, we ADT-hinted linux-kvm package, but the driver
requires modifications, in order to fix that.

[0] http://git.kernel.org/linus/2faf153bb734
[1] http://git.kernel.org/linus/bfe3d8f6313d

** Affects: linux-kvm (Ubuntu)
     Importance: Undecided
     Assignee: Guilherme G. Piccoli (gpiccoli)
         Status: In Progress

** Affects: nvidia-graphics-drivers (Ubuntu)
     Importance: Undecided
         Status: Confirmed

** Affects: linux-kvm (Ubuntu Groovy)
     Importance: Undecided
     Assignee: Guilherme G. Piccoli (gpiccoli)
         Status: In Progress

** Affects: nvidia-graphics-drivers (Ubuntu Groovy)
     Importance: Undecided
         Status: New

** Also affects: linux-kvm (Ubuntu Groovy)
   Importance: Undecided
       Status: New

** Also affects: nvidia-graphics-drivers (Ubuntu)
   Importance: Undecided
       Status: New

** Changed in: linux-kvm (Ubuntu)
     Assignee: (unassigned) => Guilherme G. Piccoli (gpiccoli)

** Changed in: nvidia-graphics-drivers (Ubuntu)
       Status: New => Confirmed

** Changed in: linux-kvm (Ubuntu)
       Status: Confirmed => In Progress

** Changed in: linux-kvm (Ubuntu Groovy)
     Assignee: (unassigned) => Guilherme G. Piccoli (gpiccoli)

** Changed in: linux-kvm (Ubuntu Groovy)
       Status: New => In Progress

-- 
You received this bug notification because you are a member of Ubuntu-X,
which is subscribed to nvidia-graphics-drivers in Ubuntu.
https://bugs.launchpad.net/bugs/1922800

Title:
  Nvidia proprietary DKMS drivers cannot build in linux-kvm 5.8 and
  subsequent versions

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