One other item I didn't add in the original post but was mentioned in the Ubuntu bug report - The system was originally built (and therefore the filesystems formatted under) 13.1 if I recall correctly. It's been upgraded to Leap and is mostly up to date on patches. Looking at the list, there are 7 missing patches one of which is a kernel update (4.1.34), but does not list an XFS fix. 4.1.31-30-default is the running kernel at present.