Comment 66 for bug 1851311

Clean 20.04, I confirm the bug.

There is a very simple way to reproduce the bug, **without even booting an O.S.**

- Set your machine to boot in EFI mode
- From the Grub (2.04) Menu, enter command mode (by pressing the key 'c')
- Set the root to where you have your iso files:

For instance:
root=hd1,msdos5

- Then just list one of your Iso file:

ls /path/to/iso/ubuntu-20.04-desktop-amd64.iso
error out of memory

That's it, just 2 commands on Grub to reproduce the bug.

Obviously, since you cannot even list the iso file, there is no way you can loopback on it or boot it.

I also confirm that "rmmod tpm" did the trick and is a valid workaround until a fix arrives.