My Ubuntu 18.04 is no longer affected.
I was able to get past "Cannot use CONFIG_STACK_VALIDATION=y" with some cleanup - removing all nvidia drivers, manually blacklisting nouveau, updating initramfs, and rebooting - before installing nvidia drivers and dkms again.
My Ubuntu 18.04 is no longer affected.
I was able to get past "Cannot use CONFIG_ STACK_VALIDATIO N=y" with some cleanup - removing all nvidia drivers, manually blacklisting nouveau, updating initramfs, and rebooting - before installing nvidia drivers and dkms again.