Comment 22 for bug 1788321

Getting the same error on old bare metal:

4.15.0-88-generic #88-Ubuntu SMP Tue Feb 11 20:11:34 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux

vendor_id : GenuineIntel
cpu family : 6
model : 15
model name : Intel(R) Pentium(R) Dual CPU T3400 @ 2.16GHz
stepping : 13
microcode : 0xa4
cpu MHz : 1290.104
cache size : 1024 KB

~# swapon -a
swapon: /swapfile: swapon failed: Invalid argument

Swap partition also does not mount at boot.
I can run gparted, hit "swapon" on the right-click menu for the swap partition, and it mounts.

I don't have this problem on other harware/VMs with same build & procedures.