** Changed in: linux-kvm (Ubuntu)
Status: In Progress => Fix Released
** Changed in: linux-kvm (Ubuntu Groovy)
Status: In Progress => Fix Released
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https://bugs.launchpad.net/bugs/1922800
Title:
Nvidia proprietary DKMS drivers cannot build in linux-kvm 5.8 and
subsequent versions
Status in linux-kvm package in Ubuntu:
Fix Released
Status in nvidia-graphics-drivers package in Ubuntu:
Confirmed
Status in linux-kvm source package in Groovy:
Fix Released
Status in nvidia-graphics-drivers source package in Groovy:
New
Bug description:
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
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