" IF YOU ARE RUNNING KALI LINUX, BEWARE, NVIDIA HAS NO CUDA SUPPORT FOR KERNEL 5.9 "

After upgrading kernel to the latest kali linux os. (Kernel 5.9.0-kali2-amd64)
I ran into this problem.

Hashcat was only using the cpu, i found out on Github forum, (link below)
so be aware if you have done a full upgrade to kernel 5.9, you will run into this problem.
My advice would be to wait for Nvidia to realease their new driver . So take time out from cracking for a few days and go do some gaming on winblows. Because we all know, that is what you would rather be doing.

https://forums.developer.nvidia.com/t/nvidia-driver-not-yet-supported-for-linux-kernel-5-9/157263

https://github.com/hashcat/hashcat/issues/2605

https://www.phoronix.com/scan.php?page=news_item&px=NVIDIA-Linux-5.9-Delayed

GOOD NEWS - https://developer.nvidia.com/cuda-downloads?target_os=Linux

(don't bother, still doesn't work) (nvidia eat sh**t)

https://bugs.archlinux.org/task/68312?string=nvidia

CUDA and OpenCL won't work on 5.9 series kernels due to nvidia_uvm module using unknown symbols.
Meanwhile, the other functionalities are unaffected

dmseg
[ 765.135311] nvidia_uvm: module uses symbols from proprietary module nvidia, inheriting taint.
[ 765.135711] nvidia_uvm: Unknown symbol radix_tree_preloads (err -2)
[ 765.135761] nvidia_uvm: Unknown symbol set_cpus_allowed_ptr (err -2)
[ 765.135821] nvidia_uvm: Unknown symbol mmu_notifier_unregister (err -2)
[ 765.135974] nvidia_uvm: Unknown symbol __mmu_notifier_register (err -2)
[ 766.620322] nvidia_uvm: module uses symbols from proprietary module nvidia, inheriting taint.
[ 766.620722] nvidia_uvm: Unknown symbol radix_tree_preloads (err -2)
[ 766.620771] nvidia_uvm: Unknown symbol set_cpus_allowed_ptr (err -2)
[ 766.620831] nvidia_uvm: Unknown symbol mmu_notifier_unregister (err -2)
[ 766.620981] nvidia_uvm: Unknown symbol __mmu_notifier_register (err -2)
[ 813.146337] nvidia_uvm: module uses symbols from proprietary module nvidia, inheriting taint.
[ 813.146735] nvidia_uvm: Unknown symbol radix_tree_preloads (err -2)
[ 813.146785] nvidia_uvm: Unknown symbol set_cpus_allowed_ptr (err -2)
[ 813.146845] nvidia_uvm: Unknown symbol mmu_notifier_unregister (err -2)
[ 813.146994] nvidia_uvm: Unknown symbol __mmu_notifier_register (err -2)
[ 813.234399] nvidia_uvm: module uses symbols from proprietary module nvidia, inheriting taint.
[ 813.234799] nvidia_uvm: Unknown symbol radix_tree_preloads (err -2)
[ 813.234848] nvidia_uvm: Unknown symbol set_cpus_allowed_ptr (err -2)
[ 813.234909] nvidia_uvm: Unknown symbol mmu_notifier_unregister (err -2)
[ 813.235058] nvidia_uvm: Unknown symbol __mmu_notifier_register (err -2)

 

All sorted now, an update will install nvidia driver 455.45.01 and with cuda 11.1
It will run as usual.