You need to improve your bug reporting skills:-) Exactly what userspace commands did you run with exactly what options? What is the architecture? (Arch & chunksize interact.)
You also need to say what userspace versions of lvm2 & device-mapper you are using - it's not necessarily a kernel bug. There have been a lot of fixes to kernel device-mapper, including snapshots, since 2.6.15. So test against the latest upstream kernel and userspace packages if you can and see whether or not the problem has already been fixed there. -- "attempt to access beyond end of device" when creating LVM snapshot https://launchpad.net/bugs/84821 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
