Ubuntu-raspi-5.8.0-1013.16 Ubuntu groovy

This is a set of packages to work around:
respeaker/seeed-voicecard#251 Spinlock issue / "BUG: scheduling while atomic"

To use, run "sudo dpkg -i ..." on all the deb's, except linux-buildinfo (it is not needed, just provided for completeness).
Afterwards, "cd /usr/src/linux-headers-5.8.0-1013-raspi" , before doing "sudo tar -xzpvf ..." the addons.tgz file.

The *.sig are gpg signatures, for security-conscious people. If you don't know what they are, you don't need them.

You also likely want to do 'apt-mark hold ...' for each of the package names to prevent them from getting auto-upgraded, after the 'dpkg -i ...' command above.