Since the functionality for dm is so varied, it's usefull to track stable reports for various parts of it. This bug is to track that.
I've tested this version of dm since it went ~amd64. I use lvm2 to have a volume group spanning multiple partitions, with several lvs on the vg. It has been stable for me, for these uses.
No outstanding issues in bugzilla, I use this on a daily basis and have not encountered any issues with it. Stable on amd64 - how about that for service :)