Comment # 8 on bug 1043912 from Nikolay Borisov

So all the provided information points that the actual size of the underlying
device is 1000203820544, which is 3.5kb larger than what the super block
thinks. This is also correlated by both the info in the device extent tree and
in the multiple copies of the super block. Independently of the filesystem,
lsblk also confirms that the device size is 1000203820544.This is odd indeed,
so if I understand correctly this volume worked fine before you upgraded to
42.2? If so could you show what number is reported by lsblkid on the old
kernel, where this used to work? Also have you performed any device replace
operations?