Adding '(lvm-system) /dev/mapper/lvm-system' you make a pretty unusual claim that your BIOS has LVM support (or that you're booting in VM and this LVM partition is in fact VM disk) Another part of your bugreport looks like a problem with LVM module. Some of them were fixed recently (including snapshot problem). Please retest
-- Regards Vladimir 'φ-coder/phcoder' Serbinenko
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