Narrowed it down to lvm snapshots. Using dmsetup to create a linear mapping greater than 2tb has no problem reading and writing over the 2tb mark correctly, so it appears that the problem is in dm-snapshot.
** Summary changed: - Silent wraparound on > 2 TB disks + Silent wraparound on > 2 TB LVM snapshots -- Silent wraparound on > 2 TB LVM snapshots https://bugs.launchpad.net/bugs/593086 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
